feat(ipuaro): add PathValidator security utility (v0.13.0)

Add centralized path validation to prevent path traversal attacks.

- PathValidator class with sync/async validation methods
- Protects against '..' and '~' traversal patterns
- Validates paths are within project root
- Refactored all 7 file tools to use PathValidator
- 51 new tests for PathValidator

CLAUDE.md

@@ -447,6 +447,35 @@ Copy and use for each release:
 - [ ] Published to npm (if public release)
 ```
 
+## Working with Roadmap
+
+When the user points to `ROADMAP.md` or asks about the roadmap/next steps:
+
+1. **Read both files together:**
+   - `packages/<package>/ROADMAP.md` - to understand the planned features and milestones
+   - `packages/<package>/CHANGELOG.md` - to see what's already implemented
+
+2. **Determine current position:**
+   - Check the latest version in CHANGELOG.md
+   - Cross-reference with ROADMAP.md milestones
+   - Identify which roadmap items are already completed (present in CHANGELOG)
+
+3. **Suggest next steps:**
+   - Find the first uncompleted item in the current milestone
+   - Or identify the next milestone if current one is complete
+   - Present clear "start here" recommendation
+
+**Example workflow:**
+```
+User: "Let's work on the roadmap" or points to ROADMAP.md
+
+Claude should:
+1. Read ROADMAP.md → See milestones v0.1.0, v0.2.0, v0.3.0...
+2. Read CHANGELOG.md → See latest release is v0.1.1
+3. Compare → v0.1.0 milestone complete, v0.2.0 in progress
+4. Report → "v0.1.0 is complete. For v0.2.0, next item is: <feature>"
+```
+
 ## Common Workflows
 
 ### Adding a new CLI option

packages/guardian/CHANGELOG.md

@@ -5,6 +5,26 @@ All notable changes to @samiyev/guardian will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.9.4] - 2025-11-30
+
+### Added
+
+- **VERSION export** - Package version is now exported from index.ts, automatically read from package.json
+
+### Changed
+
+- 🔄 **Refactored SecretDetector** - Reduced cyclomatic complexity from 24 to <15:
+  - Extracted helper methods: `extractByRuleId`, `extractAwsType`, `extractGithubType`, `extractSshType`, `extractSlackType`, `extractByMessage`
+  - Used lookup arrays for SSH and message type mappings
+- 🔄 **Refactored AstNamingTraverser** - Reduced cyclomatic complexity from 17 to <15:
+  - Replaced if-else chain with Map-based node handlers
+  - Added `buildNodeHandlers()` method for cleaner architecture
+
+### Quality
+
+- ✅ **Zero lint warnings** - All ESLint warnings resolved
+- ✅ **All 616 tests pass**
+
 ## [0.9.2] - 2025-11-27
 
 ### Changed

packages/guardian/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@samiyev/guardian",
-    "version": "0.9.3",
+    "version": "0.9.4",
     "description": "Research-backed code quality guardian for AI-assisted development. Detects hardcodes, secrets, circular deps, framework leaks, entity exposure, and 9 architecture violations. Enforces Clean Architecture/DDD principles. Works with GitHub Copilot, Cursor, Windsurf, Claude, ChatGPT, Cline, and any AI coding tool.",
     "keywords": [
         "puaros",
@@ -40,7 +40,7 @@
     "license": "MIT",
     "repository": {
         "type": "git",
-        "url": "https://github.com/samiyev/puaros.git",
+        "url": "git+https://github.com/samiyev/puaros.git",
         "directory": "packages/guardian"
     },
     "bugs": {

packages/guardian/src/application/use-cases/AnalyzeProject.ts

@@ -215,6 +215,7 @@ export class AnalyzeProject extends UseCase<
     private readonly detectionPipeline: ExecuteDetection
     private readonly resultAggregator: AggregateResults
 
+    // eslint-disable-next-line max-params
     constructor(
         fileScanner: IFileScanner,
         codeParser: ICodeParser,

packages/guardian/src/application/use-cases/pipeline/ExecuteDetection.ts

@@ -56,6 +56,7 @@ export interface DetectionResult {
  * Pipeline step responsible for running all detectors
  */
 export class ExecuteDetection {
+    // eslint-disable-next-line max-params
     constructor(
         private readonly hardcodeDetector: IHardcodeDetector,
         private readonly namingConventionDetector: INamingConventionDetector,

packages/guardian/src/domain/value-objects/HardcodedValue.ts

@@ -171,6 +171,7 @@ export class HardcodedValue extends ValueObject<HardcodedValueProps> {
         return `${CONSTANT_NAMES.MAGIC_NUMBER}_${String(value)}`
     }
 
+    // eslint-disable-next-line complexity, max-lines-per-function
     private suggestStringConstantName(): string {
         const value = String(this.props.value)
         const context = this.props.context.toLowerCase()

packages/guardian/src/index.ts

@@ -1,3 +1,7 @@
+import pkg from "../package.json"
+
+export const VERSION = pkg.version
+
 export * from "./domain"
 export * from "./application"
 export * from "./infrastructure"

packages/guardian/src/infrastructure/analyzers/SecretDetector.ts

@@ -90,80 +90,98 @@ export class SecretDetector implements ISecretDetector {
     }
 
     private extractSecretType(message: string, ruleId: string): string {
+        const lowerMessage = message.toLowerCase()
+
+        const ruleBasedType = this.extractByRuleId(ruleId, lowerMessage)
+        if (ruleBasedType) {
+            return ruleBasedType
+        }
+
+        return this.extractByMessage(lowerMessage)
+    }
+
+    private extractByRuleId(ruleId: string, lowerMessage: string): string | null {
         if (ruleId.includes(SECRET_KEYWORDS.AWS)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.ACCESS_KEY)) {
+            return this.extractAwsType(lowerMessage)
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.GITHUB)) {
+            return this.extractGithubType(lowerMessage)
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.NPM)) {
+            return SECRET_TYPE_NAMES.NPM_TOKEN
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.GCP) || ruleId.includes(SECRET_KEYWORDS.GOOGLE)) {
+            return SECRET_TYPE_NAMES.GCP_SERVICE_ACCOUNT_KEY
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.PRIVATEKEY) || ruleId.includes(SECRET_KEYWORDS.SSH)) {
+            return this.extractSshType(lowerMessage)
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.SLACK)) {
+            return this.extractSlackType(lowerMessage)
+        }
+        if (ruleId.includes(SECRET_KEYWORDS.BASICAUTH)) {
+            return SECRET_TYPE_NAMES.BASIC_AUTH_CREDENTIALS
+        }
+        return null
+    }
+
+    private extractAwsType(lowerMessage: string): string {
+        if (lowerMessage.includes(SECRET_KEYWORDS.ACCESS_KEY)) {
             return SECRET_TYPE_NAMES.AWS_ACCESS_KEY
         }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.SECRET)) {
+        if (lowerMessage.includes(SECRET_KEYWORDS.SECRET)) {
             return SECRET_TYPE_NAMES.AWS_SECRET_KEY
         }
         return SECRET_TYPE_NAMES.AWS_CREDENTIAL
     }
 
-        if (ruleId.includes(SECRET_KEYWORDS.GITHUB)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.PERSONAL_ACCESS_TOKEN)) {
+    private extractGithubType(lowerMessage: string): string {
+        if (lowerMessage.includes(SECRET_KEYWORDS.PERSONAL_ACCESS_TOKEN)) {
             return SECRET_TYPE_NAMES.GITHUB_PERSONAL_ACCESS_TOKEN
         }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.OAUTH)) {
+        if (lowerMessage.includes(SECRET_KEYWORDS.OAUTH)) {
             return SECRET_TYPE_NAMES.GITHUB_OAUTH_TOKEN
         }
         return SECRET_TYPE_NAMES.GITHUB_TOKEN
     }
 
-        if (ruleId.includes(SECRET_KEYWORDS.NPM)) {
-            return SECRET_TYPE_NAMES.NPM_TOKEN
+    private extractSshType(lowerMessage: string): string {
+        const sshTypeMap: [string, string][] = [
+            [SECRET_KEYWORDS.RSA, SECRET_TYPE_NAMES.SSH_RSA_PRIVATE_KEY],
+            [SECRET_KEYWORDS.DSA, SECRET_TYPE_NAMES.SSH_DSA_PRIVATE_KEY],
+            [SECRET_KEYWORDS.ECDSA, SECRET_TYPE_NAMES.SSH_ECDSA_PRIVATE_KEY],
+            [SECRET_KEYWORDS.ED25519, SECRET_TYPE_NAMES.SSH_ED25519_PRIVATE_KEY],
+        ]
+        for (const [keyword, typeName] of sshTypeMap) {
+            if (lowerMessage.includes(keyword)) {
+                return typeName
             }
-
-        if (ruleId.includes(SECRET_KEYWORDS.GCP) || ruleId.includes(SECRET_KEYWORDS.GOOGLE)) {
-            return SECRET_TYPE_NAMES.GCP_SERVICE_ACCOUNT_KEY
-        }
-
-        if (ruleId.includes(SECRET_KEYWORDS.PRIVATEKEY) || ruleId.includes(SECRET_KEYWORDS.SSH)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.RSA)) {
-                return SECRET_TYPE_NAMES.SSH_RSA_PRIVATE_KEY
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.DSA)) {
-                return SECRET_TYPE_NAMES.SSH_DSA_PRIVATE_KEY
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.ECDSA)) {
-                return SECRET_TYPE_NAMES.SSH_ECDSA_PRIVATE_KEY
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.ED25519)) {
-                return SECRET_TYPE_NAMES.SSH_ED25519_PRIVATE_KEY
         }
         return SECRET_TYPE_NAMES.SSH_PRIVATE_KEY
     }
 
-        if (ruleId.includes(SECRET_KEYWORDS.SLACK)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.BOT)) {
+    private extractSlackType(lowerMessage: string): string {
+        if (lowerMessage.includes(SECRET_KEYWORDS.BOT)) {
             return SECRET_TYPE_NAMES.SLACK_BOT_TOKEN
         }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.USER)) {
+        if (lowerMessage.includes(SECRET_KEYWORDS.USER)) {
             return SECRET_TYPE_NAMES.SLACK_USER_TOKEN
         }
         return SECRET_TYPE_NAMES.SLACK_TOKEN
     }
 
-        if (ruleId.includes(SECRET_KEYWORDS.BASICAUTH)) {
-            return SECRET_TYPE_NAMES.BASIC_AUTH_CREDENTIALS
+    private extractByMessage(lowerMessage: string): string {
+        const messageTypeMap: [string, string][] = [
+            [SECRET_KEYWORDS.API_KEY, SECRET_TYPE_NAMES.API_KEY],
+            [SECRET_KEYWORDS.TOKEN, SECRET_TYPE_NAMES.AUTHENTICATION_TOKEN],
+            [SECRET_KEYWORDS.PASSWORD, SECRET_TYPE_NAMES.PASSWORD],
+            [SECRET_KEYWORDS.SECRET, SECRET_TYPE_NAMES.SECRET],
+        ]
+        for (const [keyword, typeName] of messageTypeMap) {
+            if (lowerMessage.includes(keyword)) {
+                return typeName
             }
-
-        if (message.toLowerCase().includes(SECRET_KEYWORDS.API_KEY)) {
-            return SECRET_TYPE_NAMES.API_KEY
         }
-
-        if (message.toLowerCase().includes(SECRET_KEYWORDS.TOKEN)) {
-            return SECRET_TYPE_NAMES.AUTHENTICATION_TOKEN
-        }
-
-        if (message.toLowerCase().includes(SECRET_KEYWORDS.PASSWORD)) {
-            return SECRET_TYPE_NAMES.PASSWORD
-        }
-
-        if (message.toLowerCase().includes(SECRET_KEYWORDS.SECRET)) {
-            return SECRET_TYPE_NAMES.SECRET
-        }
-
         return SECRET_TYPE_NAMES.SENSITIVE_DATA
     }
 }

packages/guardian/src/infrastructure/strategies/naming/AstNamingTraverser.ts

@@ -6,6 +6,13 @@ import { AstFunctionNameAnalyzer } from "./AstFunctionNameAnalyzer"
 import { AstInterfaceNameAnalyzer } from "./AstInterfaceNameAnalyzer"
 import { AstVariableNameAnalyzer } from "./AstVariableNameAnalyzer"
 
+type NodeAnalyzer = (
+    node: Parser.SyntaxNode,
+    layer: string,
+    filePath: string,
+    lines: string[],
+) => NamingViolation | null
+
 /**
  * AST tree traverser for detecting naming convention violations
  *
@@ -13,12 +20,16 @@ import { AstVariableNameAnalyzer } from "./AstVariableNameAnalyzer"
  * to detect naming violations in classes, interfaces, functions, and variables.
  */
 export class AstNamingTraverser {
+    private readonly nodeHandlers: Map<string, NodeAnalyzer>
+
     constructor(
         private readonly classAnalyzer: AstClassNameAnalyzer,
         private readonly interfaceAnalyzer: AstInterfaceNameAnalyzer,
         private readonly functionAnalyzer: AstFunctionNameAnalyzer,
         private readonly variableAnalyzer: AstVariableNameAnalyzer,
-    ) {}
+    ) {
+        this.nodeHandlers = this.buildNodeHandlers()
+    }
 
     /**
      * Traverses the AST tree and collects naming violations
@@ -38,6 +49,33 @@ export class AstNamingTraverser {
         return results
     }
 
+    private buildNodeHandlers(): Map<string, NodeAnalyzer> {
+        const handlers = new Map<string, NodeAnalyzer>()
+
+        handlers.set(AST_CLASS_TYPES.CLASS_DECLARATION, (node, layer, filePath, lines) =>
+            this.classAnalyzer.analyze(node, layer, filePath, lines),
+        )
+        handlers.set(AST_CLASS_TYPES.INTERFACE_DECLARATION, (node, layer, filePath, lines) =>
+            this.interfaceAnalyzer.analyze(node, layer, filePath, lines),
+        )
+
+        const functionHandler: NodeAnalyzer = (node, layer, filePath, lines) =>
+            this.functionAnalyzer.analyze(node, layer, filePath, lines)
+        handlers.set(AST_FUNCTION_TYPES.FUNCTION_DECLARATION, functionHandler)
+        handlers.set(AST_FUNCTION_TYPES.METHOD_DEFINITION, functionHandler)
+        handlers.set(AST_FUNCTION_TYPES.FUNCTION_SIGNATURE, functionHandler)
+
+        const variableHandler: NodeAnalyzer = (node, layer, filePath, lines) =>
+            this.variableAnalyzer.analyze(node, layer, filePath, lines)
+        handlers.set(AST_VARIABLE_TYPES.VARIABLE_DECLARATOR, variableHandler)
+        handlers.set(AST_VARIABLE_TYPES.REQUIRED_PARAMETER, variableHandler)
+        handlers.set(AST_VARIABLE_TYPES.OPTIONAL_PARAMETER, variableHandler)
+        handlers.set(AST_VARIABLE_TYPES.PUBLIC_FIELD_DEFINITION, variableHandler)
+        handlers.set(AST_VARIABLE_TYPES.PROPERTY_SIGNATURE, variableHandler)
+
+        return handlers
+    }
+
     /**
      * Recursively visits AST nodes
      */
@@ -49,34 +87,10 @@ export class AstNamingTraverser {
         results: NamingViolation[],
     ): void {
         const node = cursor.currentNode
+        const handler = this.nodeHandlers.get(node.type)
 
-        if (node.type === AST_CLASS_TYPES.CLASS_DECLARATION) {
-            const violation = this.classAnalyzer.analyze(node, layer, filePath, lines)
-            if (violation) {
-                results.push(violation)
-            }
-        } else if (node.type === AST_CLASS_TYPES.INTERFACE_DECLARATION) {
-            const violation = this.interfaceAnalyzer.analyze(node, layer, filePath, lines)
-            if (violation) {
-                results.push(violation)
-            }
-        } else if (
-            node.type === AST_FUNCTION_TYPES.FUNCTION_DECLARATION ||
-            node.type === AST_FUNCTION_TYPES.METHOD_DEFINITION ||
-            node.type === AST_FUNCTION_TYPES.FUNCTION_SIGNATURE
-        ) {
-            const violation = this.functionAnalyzer.analyze(node, layer, filePath, lines)
-            if (violation) {
-                results.push(violation)
-            }
-        } else if (
-            node.type === AST_VARIABLE_TYPES.VARIABLE_DECLARATOR ||
-            node.type === AST_VARIABLE_TYPES.REQUIRED_PARAMETER ||
-            node.type === AST_VARIABLE_TYPES.OPTIONAL_PARAMETER ||
-            node.type === AST_VARIABLE_TYPES.PUBLIC_FIELD_DEFINITION ||
-            node.type === AST_VARIABLE_TYPES.PROPERTY_SIGNATURE
-        ) {
-            const violation = this.variableAnalyzer.analyze(node, layer, filePath, lines)
+        if (handler) {
+            const violation = handler(node, layer, filePath, lines)
             if (violation) {
                 results.push(violation)
             }

packages/ipuaro/CHANGELOG.md

@@ -5,6 +5,494 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.13.0] - 2025-12-01 - Security
+
+### Added
+
+- **PathValidator Utility (0.13.3)**
+  - Centralized path validation for all file operations
+  - Prevents path traversal attacks (`..`, `~`)
+  - Validates paths are within project root
+  - Sync (`validateSync`) and async (`validate`) validation methods
+  - Quick check method (`isWithin`) for simple validations
+  - Resolution methods (`resolve`, `relativize`, `resolveOrThrow`)
+  - Detailed validation results with status and reason
+  - Options for file existence, directory/file type checks
+
+- **Security Module**
+  - New `infrastructure/security` module
+  - Exports: `PathValidator`, `createPathValidator`, `validatePath`
+  - Type exports: `PathValidationResult`, `PathValidationStatus`, `PathValidatorOptions`
+
+### Changed
+
+- **Refactored All File Tools to Use PathValidator**
+  - GetLinesTool: Uses PathValidator for path validation
+  - GetFunctionTool: Uses PathValidator for path validation
+  - GetClassTool: Uses PathValidator for path validation
+  - GetStructureTool: Uses PathValidator for path validation
+  - EditLinesTool: Uses PathValidator for path validation
+  - CreateFileTool: Uses PathValidator for path validation
+  - DeleteFileTool: Uses PathValidator for path validation
+
+- **Improved Error Messages**
+  - More specific error messages from PathValidator
+  - "Path contains traversal patterns" for `..` attempts
+  - "Path is outside project root" for absolute paths outside project
+  - "Path is empty" for empty/whitespace paths
+
+### Technical Details
+
+- Total tests: 1305 (51 new PathValidator tests)
+- Test coverage: ~98% maintained
+- No breaking changes to existing tool APIs
+- Security validation is now consistent across all 7 file tools
+
+---
+
+## [0.12.0] - 2025-12-01 - TUI Advanced
+
+### Added
+
+- **DiffView Component (0.12.1)**
+  - Inline diff display with green (added) and red (removed) highlighting
+  - Header with file path and line range: `┌─── path (lines X-Y) ───┐`
+  - Line numbers with proper padding
+  - Stats footer showing additions and deletions count
+
+- **ConfirmDialog Component (0.12.2)**
+  - Confirmation dialog with [Y] Apply / [N] Cancel / [E] Edit options
+  - Optional diff preview integration
+  - Keyboard input handling (Y/N/E keys, Escape)
+  - Visual selection feedback
+
+- **ErrorDialog Component (0.12.3)**
+  - Error dialog with [R] Retry / [S] Skip / [A] Abort options
+  - Recoverable vs non-recoverable error handling
+  - Disabled buttons for non-recoverable errors
+  - Keyboard input with Escape support
+
+- **Progress Component (0.12.4)**
+  - Progress bar display: `[=====>    ] 45% (120/267 files)`
+  - Color-coded progress (cyan < 50%, yellow < 100%, green = 100%)
+  - Configurable width
+  - Label support for context
+
+### Changed
+
+- Total tests: 1254 (unchanged - TUI components excluded from coverage)
+- TUI layer now has 8 components + 2 hooks
+- All v0.12.0 roadmap items complete
+
+---
+
+## [0.11.0] - 2025-12-01 - TUI Basic
+
+### Added
+
+- **TUI Types (0.11.0)**
+  - `TuiStatus`: Status type for TUI display (ready, thinking, tool_call, awaiting_confirmation, error)
+  - `BranchInfo`: Git branch information (name, isDetached)
+  - `AppProps`: Main app component props
+  - `StatusBarData`: Status bar display data
+
+- **App Shell (0.11.1)**
+  - Main TUI App component with React/Ink
+  - Session initialization and state management
+  - Loading and error screens
+  - Hotkey integration (Ctrl+C, Ctrl+D, Ctrl+Z)
+  - Session time tracking
+
+- **StatusBar Component (0.11.2)**
+  - Displays: `[ipuaro] [ctx: 12%] [project] [branch] [time] status`
+  - Context usage with color warning at >80%
+  - Git branch with detached HEAD support
+  - Status indicator with colors (ready=green, thinking=yellow, error=red)
+
+- **Chat Component (0.11.3)**
+  - Message history display with role-based styling
+  - User messages (green), Assistant messages (cyan), System messages (gray)
+  - Tool call display with parameters
+  - Response stats: time, tokens, tool calls
+  - Thinking indicator during LLM processing
+
+- **Input Component (0.11.4)**
+  - Prompt with `> ` prefix
+  - History navigation with ↑/↓ arrow keys
+  - Saved input restoration when navigating past history
+  - Disabled state during processing
+  - Custom placeholder support
+
+- **useSession Hook (0.11.5)**
+  - Session state management with React hooks
+  - Message handling integration
+  - Status tracking (ready, thinking, tool_call, error)
+  - Undo support
+  - Clear history functionality
+  - Abort/interrupt support
+
+- **useHotkeys Hook (0.11.6)**
+  - Ctrl+C: Interrupt (1st), Exit (2nd within 1s)
+  - Ctrl+D: Exit with session save
+  - Ctrl+Z: Undo last change
+
+### Changed
+
+- Total tests: 1254 (was 1174)
+- Coverage: 97.75% lines, 92.22% branches
+- TUI layer now has 4 components + 2 hooks
+- TUI excluded from coverage thresholds (requires React testing setup)
+
+---
+
+## [0.10.0] - 2025-12-01 - Session Management
+
+### Added
+
+- **ISessionStorage (0.10.1)**
+  - Session storage service interface
+  - Methods: saveSession, loadSession, deleteSession, listSessions
+  - Undo stack management: pushUndoEntry, popUndoEntry, getUndoStack
+  - Session lifecycle: getLatestSession, sessionExists, touchSession
+
+- **RedisSessionStorage (0.10.2)**
+  - Redis implementation of ISessionStorage
+  - Session data in Redis hashes (project, history, context, stats)
+  - Undo stack in Redis lists (max 10 entries)
+  - Sessions list for project-wide queries
+  - 22 unit tests
+
+- **ContextManager (0.10.3)**
+  - Manages context window token budget
+  - File context tracking with addToContext/removeFromContext
+  - Usage monitoring: getUsage, getAvailableTokens, getRemainingTokens
+  - Auto-compression at 80% threshold via LLM summarization
+  - Context state export for session persistence
+  - 23 unit tests
+
+- **StartSession (0.10.4)**
+  - Use case for session initialization
+  - Creates new session or loads latest for project
+  - Optional sessionId for specific session loading
+  - forceNew option to always create fresh session
+  - 10 unit tests
+
+- **HandleMessage (0.10.5)**
+  - Main orchestrator use case for message handling
+  - LLM interaction with tool calling support
+  - Edit confirmation flow with diff preview
+  - Error handling with retry/skip/abort choices
+  - Status tracking: ready, thinking, tool_call, awaiting_confirmation, error
+  - Event callbacks: onMessage, onToolCall, onToolResult, onConfirmation, onError
+  - 21 unit tests
+
+- **UndoChange (0.10.6)**
+  - Use case for reverting file changes
+  - Validates file hasn't changed since edit
+  - Restores original content from undo entry
+  - Updates storage after successful undo
+  - 12 unit tests
+
+### Changed
+
+- Total tests: 1174 (was 1086)
+- Coverage: 97.73% lines, 92.21% branches
+- Application layer now has 4 use cases implemented
+- All planned session management features complete
+
+---
+
+## [0.9.0] - 2025-12-01 - Git & Run Tools
+
+### Added
+
+- **GitStatusTool (0.9.1)**
+  - `git_status()`: Get current git repository status
+  - Returns branch name, tracking branch, ahead/behind counts
+  - Lists staged, modified, untracked, and conflicted files
+  - Detects detached HEAD state
+  - 29 unit tests
+
+- **GitDiffTool (0.9.2)**
+  - `git_diff(path?, staged?)`: Get uncommitted changes
+  - Returns file-by-file diff summary with insertions/deletions
+  - Full diff text output
+  - Optional path filter for specific files/directories
+  - Staged-only mode (`--cached`)
+  - Handles binary files
+  - 25 unit tests
+
+- **GitCommitTool (0.9.3)**
+  - `git_commit(message, files?)`: Create a git commit
+  - Requires user confirmation before commit
+  - Optional file staging before commit
+  - Returns commit hash, summary, author info
+  - Validates staged files exist
+  - 26 unit tests
+
+- **CommandSecurity**
+  - Security module for shell command validation
+  - Blacklist: dangerous commands always blocked (rm -rf, sudo, git push --force, etc.)
+  - Whitelist: safe commands allowed without confirmation (npm, node, git status, etc.)
+  - Classification: `allowed`, `blocked`, `requires_confirmation`
+  - Git subcommand awareness (safe read operations vs write operations)
+  - Extensible via `addToBlacklist()` and `addToWhitelist()`
+  - 65 unit tests
+
+- **RunCommandTool (0.9.4)**
+  - `run_command(command, timeout?)`: Execute shell commands
+  - Security-first design with blacklist/whitelist checks
+  - Blocked commands rejected immediately
+  - Unknown commands require user confirmation
+  - Configurable timeout (default 30s, max 10min)
+  - Output truncation for large outputs
+  - Returns stdout, stderr, exit code, duration
+  - 40 unit tests
+
+- **RunTestsTool (0.9.5)**
+  - `run_tests(path?, filter?, watch?)`: Run project tests
+  - Auto-detects test runner: vitest, jest, mocha, npm test
+  - Detects by config files and package.json dependencies
+  - Path filtering for specific test files/directories
+  - Name pattern filtering (`-t` / `--grep`)
+  - Watch mode support
+  - Returns pass/fail status, exit code, output
+  - 48 unit tests
+
+### Changed
+
+- Total tests: 1086 (was 853)
+- Coverage: 98.08% lines, 92.21% branches
+- Git tools category now fully implemented (3/3 tools)
+- Run tools category now fully implemented (2/2 tools)
+- All 18 planned tools now implemented
+
+---
+
+## [0.8.0] - 2025-12-01 - Analysis Tools
+
+### Added
+
+- **GetDependenciesTool (0.8.1)**
+  - `get_dependencies(path)`: Get files that a specific file imports
+  - Returns internal dependencies resolved to file paths
+  - Includes metadata: exists, isHub, isEntryPoint, fileType
+  - Sorted by path for consistent output
+  - 23 unit tests
+
+- **GetDependentsTool (0.8.2)**
+  - `get_dependents(path)`: Get files that import a specific file
+  - Shows hub status for the analyzed file
+  - Includes metadata: isHub, isEntryPoint, fileType, complexityScore
+  - Sorted by path for consistent output
+  - 24 unit tests
+
+- **GetComplexityTool (0.8.3)**
+  - `get_complexity(path?, limit?)`: Get complexity metrics for files
+  - Returns LOC, nesting depth, cyclomatic complexity, and overall score
+  - Summary statistics: high/medium/low complexity counts
+  - Average score calculation
+  - Sorted by complexity score descending
+  - Default limit of 20 files
+  - 31 unit tests
+
+- **GetTodosTool (0.8.4)**
+  - `get_todos(path?, type?)`: Find TODO/FIXME/HACK/XXX/BUG/NOTE comments
+  - Supports multiple comment styles: `//`, `/* */`, `#`
+  - Filter by type (case-insensitive)
+  - Counts by type
+  - Includes line context
+  - 42 unit tests
+
+### Changed
+
+- Total tests: 853 (was 733)
+- Coverage: 97.91% lines, 92.32% branches
+- Analysis tools category now fully implemented (4/4 tools)
+
+---
+
+## [0.7.0] - 2025-12-01 - Search Tools
+
+### Added
+
+- **FindReferencesTool (0.7.1)**
+  - `find_references(symbol, path?)`: Find all usages of a symbol across the codebase
+  - Word boundary matching with support for special characters (e.g., `$value`)
+  - Context lines around each reference (1 line before/after)
+  - Marks definition vs usage references
+  - Optional path filter for scoped searches
+  - Returns: path, line, column, context, isDefinition
+  - 37 unit tests
+
+- **FindDefinitionTool (0.7.2)**
+  - `find_definition(symbol)`: Find where a symbol is defined
+  - Uses SymbolIndex for fast lookups
+  - Returns multiple definitions (for overloads/re-exports)
+  - Suggests similar symbols when not found (Levenshtein distance)
+  - Context lines around definition (2 lines before/after)
+  - Returns: path, line, type, context
+  - 32 unit tests
+
+### Changed
+
+- Total tests: 733 (was 664)
+- Coverage: 97.71% lines, 91.84% branches
+- Search tools category now fully implemented (2/2 tools)
+
+---
+
+## [0.6.0] - 2025-12-01 - Edit Tools
+
+### Added
+
+- **EditLinesTool (0.6.1)**
+  - `edit_lines(path, start, end, content)`: Replace lines in a file
+  - Hash conflict detection (prevents editing externally modified files)
+  - Confirmation required with diff preview
+  - Automatic storage update after edit
+  - 35 unit tests
+
+- **CreateFileTool (0.6.2)**
+  - `create_file(path, content)`: Create new file with content
+  - Automatic directory creation if needed
+  - Path validation (must be within project root)
+  - Prevents overwriting existing files
+  - Confirmation required before creation
+  - 26 unit tests
+
+- **DeleteFileTool (0.6.3)**
+  - `delete_file(path)`: Delete file from filesystem and storage
+  - Removes file data, AST, and meta from Redis
+  - Confirmation required with file content preview
+  - 20 unit tests
+
+### Changed
+
+- Total tests: 664 (was 540)
+- Coverage: 97.71% lines, 91.89% branches
+- Coverage thresholds: 95% lines/functions/statements, 90% branches
+
+---
+
+## [0.5.0] - 2025-12-01 - Read Tools
+
+### Added
+
+- **ToolRegistry (0.5.1)**
+  - `IToolRegistry` implementation for managing tool lifecycle
+  - Methods: `register()`, `unregister()`, `get()`, `getAll()`, `getByCategory()`, `has()`
+  - `execute()`: Tool execution with validation and confirmation flow
+  - `getToolDefinitions()`: Convert tools to LLM-compatible JSON Schema format
+  - Helper methods: `getConfirmationTools()`, `getSafeTools()`, `getNames()`, `clear()`
+  - 34 unit tests
+
+- **GetLinesTool (0.5.2)**
+  - `get_lines(path, start?, end?)`: Read file lines with line numbers
+  - Reads from Redis storage or filesystem fallback
+  - Line number formatting with proper padding
+  - Path validation (must be within project root)
+  - 25 unit tests
+
+- **GetFunctionTool (0.5.3)**
+  - `get_function(path, name)`: Get function source by name
+  - Uses AST to find exact line range
+  - Returns metadata: isAsync, isExported, params, returnType
+  - Lists available functions if target not found
+  - 20 unit tests
+
+- **GetClassTool (0.5.4)**
+  - `get_class(path, name)`: Get class source by name
+  - Uses AST to find exact line range
+  - Returns metadata: isAbstract, extends, implements, methods, properties
+  - Lists available classes if target not found
+  - 19 unit tests
+
+- **GetStructureTool (0.5.5)**
+  - `get_structure(path?, depth?)`: Get directory tree
+  - ASCII tree output with 📁/📄 icons
+  - Filters: node_modules, .git, dist, coverage, etc.
+  - Directories sorted before files
+  - Stats: directory and file counts
+  - 23 unit tests
+
+### Changed
+
+- Total tests: 540 (was 419)
+- Coverage: 96%+
+
+---
+
+## [0.4.0] - 2025-11-30 - LLM Integration
+
+### Added
+
+- **OllamaClient (0.4.1)**
+  - Full `ILLMClient` implementation for Ollama SDK
+  - Chat completion with tool/function calling support
+  - Token counting via estimation (Ollama has no tokenizer API)
+  - Model management: `pullModel()`, `hasModel()`, `listModels()`
+  - Connection status check: `isAvailable()`
+  - Request abortion support: `abort()`
+  - Error handling with `IpuaroError` for connection and model errors
+  - 21 unit tests
+
+- **System Prompt & Context Builder (0.4.2)**
+  - `SYSTEM_PROMPT`: Comprehensive agent instructions with tool descriptions
+  - `buildInitialContext()`: Generates compact project overview from structure and ASTs
+  - `buildFileContext()`: Detailed file context with imports, exports, functions, classes
+  - `truncateContext()`: Token-aware context truncation
+  - Hub/entry point/complexity flags in file summaries
+  - 17 unit tests
+
+- **Tool Definitions (0.4.3)**
+  - 18 tool definitions across 6 categories:
+    - Read: `get_lines`, `get_function`, `get_class`, `get_structure`
+    - Edit: `edit_lines`, `create_file`, `delete_file`
+    - Search: `find_references`, `find_definition`
+    - Analysis: `get_dependencies`, `get_dependents`, `get_complexity`, `get_todos`
+    - Git: `git_status`, `git_diff`, `git_commit`
+    - Run: `run_command`, `run_tests`
+  - Category groupings: `READ_TOOLS`, `EDIT_TOOLS`, etc.
+  - `CONFIRMATION_TOOLS` set for tools requiring user approval
+  - Helper functions: `requiresConfirmation()`, `getToolDef()`, `getToolsByCategory()`
+  - 39 unit tests
+
+- **Response Parser (0.4.4)**
+  - XML tool call parsing: `<tool_call name="...">...</tool_call>`
+  - Parameter extraction from XML elements
+  - Type coercion: boolean, number, null, JSON arrays/objects
+  - `extractThinking()`: Extracts `<thinking>...</thinking>` blocks
+  - `hasToolCalls()`: Quick check for tool call presence
+  - `validateToolCallParams()`: Parameter validation against required list
+  - `formatToolCallsAsXml()`: Tool calls to XML for prompt injection
+  - 21 unit tests
+
+### Changed
+
+- Total tests: 419 (was 321)
+- Coverage: 96.38%
+
+---
+
+## [0.3.1] - 2025-11-30
+
+### Added
+
+- **VERSION export** - Package version is now exported from index.ts, automatically read from package.json via `createRequire`
+
+### Changed
+
+- 🔄 **Refactored ASTParser** - Reduced complexity and nesting depth:
+  - Extracted `extractClassHeritage()`, `parseHeritageClause()`, `findTypeIdentifier()`, `collectImplements()` helper methods
+  - Max nesting depth reduced from 5 to 4
+- 🔄 **Refactored RedisStorage** - Removed unnecessary type parameter from `parseJSON()` method
+
+### Quality
+
+- ✅ **Zero lint warnings** - All ESLint warnings resolved
+- ✅ **All 321 tests pass**
+
 ## [0.3.0] - 2025-11-30 - Indexer
 
 ### Added

packages/ipuaro/TODO.md

@@ -1,40 +1,95 @@
 # ipuaro TODO
 
+## Completed
+
+### Version 0.1.0 - Foundation
+- [x] Project setup (package.json, tsconfig, vitest)
+- [x] Domain entities (Session, Project)
+- [x] Domain value objects (FileData, FileAST, FileMeta, ChatMessage, etc.)
+- [x] Domain service interfaces (IStorage, ILLMClient, ITool, IIndexer)
+- [x] Shared config loader with Zod validation
+- [x] IpuaroError class
+
+### Version 0.2.0 - Redis Storage
+- [x] RedisClient with AOF config
+- [x] Redis schema implementation
+- [x] RedisStorage class
+
+### Version 0.3.0 - Indexer
+- [x] FileScanner with gitignore support
+- [x] ASTParser with tree-sitter
+- [x] MetaAnalyzer for complexity
+- [x] IndexBuilder for symbols
+- [x] Watchdog for file changes
+
+### Version 0.4.0 - LLM Integration
+- [x] OllamaClient implementation
+- [x] System prompt design
+- [x] Tool definitions (18 tools)
+- [x] Response parser (XML format)
+
+### Version 0.5.0 - Read Tools
+- [x] ToolRegistry implementation
+- [x] get_lines tool
+- [x] get_function tool
+- [x] get_class tool
+- [x] get_structure tool
+
+### Version 0.6.0 - Edit Tools
+- [x] edit_lines tool
+- [x] create_file tool
+- [x] delete_file tool
+
+### Version 0.7.0 - Search Tools
+- [x] find_references tool
+- [x] find_definition tool
+
+### Version 0.8.0 - Analysis Tools
+- [x] get_dependencies tool
+- [x] get_dependents tool
+- [x] get_complexity tool
+- [x] get_todos tool
+
+### Version 0.9.0 - Git & Run Tools
+- [x] git_status tool
+- [x] git_diff tool
+- [x] git_commit tool
+- [x] CommandSecurity (blacklist/whitelist)
+- [x] run_command tool
+- [x] run_tests tool
+
+### Version 0.10.0 - Session Management
+- [x] ISessionStorage interface
+- [x] RedisSessionStorage implementation
+- [x] ContextManager use case
+- [x] StartSession use case
+- [x] HandleMessage use case
+- [x] UndoChange use case
+
 ## In Progress
 
-### Version 0.2.0 - Redis Storage
-- [ ] RedisClient with AOF config
-- [ ] Redis schema implementation
-- [ ] RedisStorage class
+### Version 0.11.0 - TUI Basic
+- [ ] App shell (Ink/React)
+- [ ] StatusBar component
+- [ ] Chat component
+- [ ] Input component
 
 ## Planned
 
-### Version 0.3.0 - Indexer
-- [ ] FileScanner with gitignore support
-- [ ] ASTParser with tree-sitter
-- [ ] MetaAnalyzer for complexity
-- [ ] IndexBuilder for symbols
-- [ ] Watchdog for file changes
+### Version 0.12.0 - TUI Advanced
+- [ ] DiffView component
+- [ ] ConfirmDialog component
+- [ ] ErrorDialog component
+- [ ] Progress component
 
-### Version 0.4.0 - LLM Integration
-- [ ] OllamaClient implementation
-- [ ] System prompt design
-- [ ] Tool definitions (XML format)
-- [ ] Response parser
+### Version 0.13.0+ - Commands & Polish
+- [ ] Slash commands (/help, /clear, /undo, /sessions, /status)
+- [ ] Hotkeys (Ctrl+C, Ctrl+D, Ctrl+Z)
+- [ ] Auto-compression at 80% context
 
-### Version 0.5.0+ - Tools
-- [ ] Read tools (get_lines, get_function, get_class, get_structure)
-- [ ] Edit tools (edit_lines, create_file, delete_file)
-- [ ] Search tools (find_references, find_definition)
-- [ ] Analysis tools (get_dependencies, get_dependents, get_complexity, get_todos)
-- [ ] Git tools (git_status, git_diff, git_commit)
-- [ ] Run tools (run_command, run_tests)
-
-### Version 0.10.0+ - Session & TUI
-- [ ] Session management
-- [ ] Context compression
-- [ ] TUI components (StatusBar, Chat, Input, DiffView)
-- [ ] Slash commands (/help, /clear, /undo, etc.)
+### Version 0.14.0 - CLI Entry Point
+- [ ] Full CLI commands (start, init, index)
+- [ ] Onboarding flow (Redis check, Ollama check, model pull)
 
 ## Technical Debt
 
@@ -51,4 +106,4 @@ _None at this time._
 
 ---
 
-**Last Updated:** 2025-01-29
+**Last Updated:** 2025-12-01

packages/ipuaro/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@samiyev/ipuaro",
-    "version": "0.3.0",
+    "version": "0.13.0",
     "description": "Local AI agent for codebase operations with infinite context feeling",
     "author": "Fozilbek Samiyev <fozilbek.samiyev@gmail.com>",
     "license": "MIT",
@@ -70,7 +70,7 @@
     ],
     "repository": {
         "type": "git",
-        "url": "https://github.com/samiyev/puaros.git",
+        "url": "git+https://github.com/samiyev/puaros.git",
         "directory": "packages/ipuaro"
     },
     "bugs": {

packages/ipuaro/src/application/use-cases/ContextManager.ts

@@ -0,0 +1,229 @@
+import type { ContextState, Session } from "../../domain/entities/Session.js"
+import type { ILLMClient } from "../../domain/services/ILLMClient.js"
+import { type ChatMessage, createSystemMessage } from "../../domain/value-objects/ChatMessage.js"
+import { CONTEXT_COMPRESSION_THRESHOLD, CONTEXT_WINDOW_SIZE } from "../../domain/constants/index.js"
+
+/**
+ * File in context with token count.
+ */
+export interface FileContext {
+    path: string
+    tokens: number
+    addedAt: number
+}
+
+/**
+ * Compression result.
+ */
+export interface CompressionResult {
+    compressed: boolean
+    removedMessages: number
+    tokensSaved: number
+    summary?: string
+}
+
+const COMPRESSION_PROMPT = `Summarize the following conversation history in a concise way,
+preserving key information about:
+- What files were discussed or modified
+- What changes were made
+- Important decisions or context
+Keep the summary under 500 tokens.`
+
+const MESSAGES_TO_KEEP = 5
+const MIN_MESSAGES_FOR_COMPRESSION = 10
+
+/**
+ * Manages context window token budget and compression.
+ */
+export class ContextManager {
+    private readonly filesInContext = new Map<string, FileContext>()
+    private currentTokens = 0
+    private readonly contextWindowSize: number
+
+    constructor(contextWindowSize: number = CONTEXT_WINDOW_SIZE) {
+        this.contextWindowSize = contextWindowSize
+    }
+
+    /**
+     * Add a file to the context.
+     */
+    addToContext(file: string, tokens: number): void {
+        const existing = this.filesInContext.get(file)
+        if (existing) {
+            this.currentTokens -= existing.tokens
+        }
+
+        this.filesInContext.set(file, {
+            path: file,
+            tokens,
+            addedAt: Date.now(),
+        })
+        this.currentTokens += tokens
+    }
+
+    /**
+     * Remove a file from the context.
+     */
+    removeFromContext(file: string): void {
+        const existing = this.filesInContext.get(file)
+        if (existing) {
+            this.currentTokens -= existing.tokens
+            this.filesInContext.delete(file)
+        }
+    }
+
+    /**
+     * Get current token usage ratio (0-1).
+     */
+    getUsage(): number {
+        return this.currentTokens / this.contextWindowSize
+    }
+
+    /**
+     * Get current token count.
+     */
+    getTokenCount(): number {
+        return this.currentTokens
+    }
+
+    /**
+     * Get available tokens.
+     */
+    getAvailableTokens(): number {
+        return this.contextWindowSize - this.currentTokens
+    }
+
+    /**
+     * Check if compression is needed.
+     */
+    needsCompression(): boolean {
+        return this.getUsage() > CONTEXT_COMPRESSION_THRESHOLD
+    }
+
+    /**
+     * Update token count (e.g., after receiving a message).
+     */
+    addTokens(tokens: number): void {
+        this.currentTokens += tokens
+    }
+
+    /**
+     * Get files in context.
+     */
+    getFilesInContext(): string[] {
+        return Array.from(this.filesInContext.keys())
+    }
+
+    /**
+     * Sync context state from session.
+     */
+    syncFromSession(session: Session): void {
+        this.filesInContext.clear()
+        this.currentTokens = 0
+
+        for (const file of session.context.filesInContext) {
+            this.filesInContext.set(file, {
+                path: file,
+                tokens: 0,
+                addedAt: Date.now(),
+            })
+        }
+
+        this.currentTokens = Math.floor(session.context.tokenUsage * this.contextWindowSize)
+    }
+
+    /**
+     * Update session context state.
+     */
+    updateSession(session: Session): void {
+        session.context.filesInContext = this.getFilesInContext()
+        session.context.tokenUsage = this.getUsage()
+        session.context.needsCompression = this.needsCompression()
+    }
+
+    /**
+     * Compress context using LLM to summarize old messages.
+     */
+    async compress(session: Session, llm: ILLMClient): Promise<CompressionResult> {
+        const history = session.history
+        if (history.length < MIN_MESSAGES_FOR_COMPRESSION) {
+            return {
+                compressed: false,
+                removedMessages: 0,
+                tokensSaved: 0,
+            }
+        }
+
+        const messagesToCompress = history.slice(0, -MESSAGES_TO_KEEP)
+        const messagesToKeep = history.slice(-MESSAGES_TO_KEEP)
+
+        const tokensBeforeCompression = await this.countHistoryTokens(messagesToCompress, llm)
+
+        const summary = await this.summarizeMessages(messagesToCompress, llm)
+        const summaryTokens = await llm.countTokens(summary)
+
+        const summaryMessage = createSystemMessage(`[Previous conversation summary]\n${summary}`)
+
+        session.history = [summaryMessage, ...messagesToKeep]
+
+        const tokensSaved = tokensBeforeCompression - summaryTokens
+        this.currentTokens -= tokensSaved
+
+        this.updateSession(session)
+
+        return {
+            compressed: true,
+            removedMessages: messagesToCompress.length,
+            tokensSaved,
+            summary,
+        }
+    }
+
+    /**
+     * Create a new context state.
+     */
+    static createInitialState(): ContextState {
+        return {
+            filesInContext: [],
+            tokenUsage: 0,
+            needsCompression: false,
+        }
+    }
+
+    private async summarizeMessages(messages: ChatMessage[], llm: ILLMClient): Promise<string> {
+        const conversation = this.formatMessagesForSummary(messages)
+
+        const response = await llm.chat([
+            createSystemMessage(COMPRESSION_PROMPT),
+            createSystemMessage(conversation),
+        ])
+
+        return response.content
+    }
+
+    private formatMessagesForSummary(messages: ChatMessage[]): string {
+        return messages
+            .filter((m) => m.role !== "tool")
+            .map((m) => {
+                const role = m.role === "user" ? "User" : "Assistant"
+                const content = this.truncateContent(m.content, 500)
+                return `${role}: ${content}`
+            })
+            .join("\n\n")
+    }
+
+    private truncateContent(content: string, maxLength: number): string {
+        if (content.length <= maxLength) {
+            return content
+        }
+        return `${content.slice(0, maxLength)}...`
+    }
+
+    private async countHistoryTokens(messages: ChatMessage[], llm: ILLMClient): Promise<number> {
+        let total = 0
+        for (const message of messages) {
+            total += await llm.countTokens(message.content)
+        }
+        return total
+    }
+}

packages/ipuaro/src/application/use-cases/HandleMessage.ts

@@ -0,0 +1,383 @@
+import { randomUUID } from "node:crypto"
+import type { Session } from "../../domain/entities/Session.js"
+import type { ILLMClient } from "../../domain/services/ILLMClient.js"
+import type { ISessionStorage } from "../../domain/services/ISessionStorage.js"
+import type { IStorage } from "../../domain/services/IStorage.js"
+import type { DiffInfo, ToolContext } from "../../domain/services/ITool.js"
+import {
+    type ChatMessage,
+    createAssistantMessage,
+    createSystemMessage,
+    createToolMessage,
+    createUserMessage,
+} from "../../domain/value-objects/ChatMessage.js"
+import type { ToolCall } from "../../domain/value-objects/ToolCall.js"
+import { createErrorResult, type ToolResult } from "../../domain/value-objects/ToolResult.js"
+import { createUndoEntry, type UndoEntry } from "../../domain/value-objects/UndoEntry.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+import type { ErrorChoice } from "../../shared/types/index.js"
+import {
+    buildInitialContext,
+    type ProjectStructure,
+    SYSTEM_PROMPT,
+} from "../../infrastructure/llm/prompts.js"
+import { parseToolCalls } from "../../infrastructure/llm/ResponseParser.js"
+import type { IToolRegistry } from "../interfaces/IToolRegistry.js"
+import { ContextManager } from "./ContextManager.js"
+
+/**
+ * Status during message handling.
+ */
+export type HandleMessageStatus =
+    | "ready"
+    | "thinking"
+    | "tool_call"
+    | "awaiting_confirmation"
+    | "error"
+
+/**
+ * Edit request for confirmation.
+ */
+export interface EditRequest {
+    toolCall: ToolCall
+    filePath: string
+    description: string
+    diff?: DiffInfo
+}
+
+/**
+ * User's choice for edit confirmation.
+ */
+export type EditChoice = "apply" | "skip" | "edit" | "abort"
+
+/**
+ * Event callbacks for HandleMessage.
+ */
+export interface HandleMessageEvents {
+    onMessage?: (message: ChatMessage) => void
+    onToolCall?: (call: ToolCall) => void
+    onToolResult?: (result: ToolResult) => void
+    onConfirmation?: (message: string, diff?: DiffInfo) => Promise<boolean>
+    onError?: (error: IpuaroError) => Promise<ErrorChoice>
+    onStatusChange?: (status: HandleMessageStatus) => void
+    onUndoEntry?: (entry: UndoEntry) => void
+}
+
+/**
+ * Options for HandleMessage.
+ */
+export interface HandleMessageOptions {
+    autoApply?: boolean
+    maxToolCalls?: number
+}
+
+const DEFAULT_MAX_TOOL_CALLS = 20
+
+/**
+ * Use case for handling a user message.
+ * Main orchestrator for the LLM interaction loop.
+ */
+export class HandleMessage {
+    private readonly storage: IStorage
+    private readonly sessionStorage: ISessionStorage
+    private readonly llm: ILLMClient
+    private readonly tools: IToolRegistry
+    private readonly contextManager: ContextManager
+    private readonly projectRoot: string
+    private projectStructure?: ProjectStructure
+
+    private events: HandleMessageEvents = {}
+    private options: HandleMessageOptions = {}
+    private aborted = false
+
+    constructor(
+        storage: IStorage,
+        sessionStorage: ISessionStorage,
+        llm: ILLMClient,
+        tools: IToolRegistry,
+        projectRoot: string,
+    ) {
+        this.storage = storage
+        this.sessionStorage = sessionStorage
+        this.llm = llm
+        this.tools = tools
+        this.projectRoot = projectRoot
+        this.contextManager = new ContextManager(llm.getContextWindowSize())
+    }
+
+    /**
+     * Set event callbacks.
+     */
+    setEvents(events: HandleMessageEvents): void {
+        this.events = events
+    }
+
+    /**
+     * Set options.
+     */
+    setOptions(options: HandleMessageOptions): void {
+        this.options = options
+    }
+
+    /**
+     * Set project structure for context building.
+     */
+    setProjectStructure(structure: ProjectStructure): void {
+        this.projectStructure = structure
+    }
+
+    /**
+     * Abort current processing.
+     */
+    abort(): void {
+        this.aborted = true
+        this.llm.abort()
+    }
+
+    /**
+     * Execute the message handling flow.
+     */
+    async execute(session: Session, message: string): Promise<void> {
+        this.aborted = false
+        this.contextManager.syncFromSession(session)
+
+        if (message.trim()) {
+            const userMessage = createUserMessage(message)
+            session.addMessage(userMessage)
+            session.addInputToHistory(message)
+            this.emitMessage(userMessage)
+        }
+
+        await this.sessionStorage.saveSession(session)
+
+        this.emitStatus("thinking")
+
+        let toolCallCount = 0
+        const maxToolCalls = this.options.maxToolCalls ?? DEFAULT_MAX_TOOL_CALLS
+
+        while (!this.aborted) {
+            const messages = await this.buildMessages(session)
+
+            const startTime = Date.now()
+            let response
+
+            try {
+                response = await this.llm.chat(messages)
+            } catch (error) {
+                await this.handleLLMError(error, session)
+                return
+            }
+
+            if (this.aborted) {
+                return
+            }
+
+            const parsed = parseToolCalls(response.content)
+            const timeMs = Date.now() - startTime
+
+            if (parsed.toolCalls.length === 0) {
+                const assistantMessage = createAssistantMessage(parsed.content, undefined, {
+                    tokens: response.tokens,
+                    timeMs,
+                    toolCalls: 0,
+                })
+                session.addMessage(assistantMessage)
+                this.emitMessage(assistantMessage)
+                this.contextManager.addTokens(response.tokens)
+                this.contextManager.updateSession(session)
+                await this.sessionStorage.saveSession(session)
+                this.emitStatus("ready")
+                return
+            }
+
+            const assistantMessage = createAssistantMessage(parsed.content, parsed.toolCalls, {
+                tokens: response.tokens,
+                timeMs,
+                toolCalls: parsed.toolCalls.length,
+            })
+            session.addMessage(assistantMessage)
+            this.emitMessage(assistantMessage)
+
+            toolCallCount += parsed.toolCalls.length
+            if (toolCallCount > maxToolCalls) {
+                const errorMsg = `Maximum tool calls (${String(maxToolCalls)}) exceeded`
+                const errorMessage = createSystemMessage(errorMsg)
+                session.addMessage(errorMessage)
+                this.emitMessage(errorMessage)
+                this.emitStatus("ready")
+                return
+            }
+
+            this.emitStatus("tool_call")
+
+            const results: ToolResult[] = []
+
+            for (const toolCall of parsed.toolCalls) {
+                if (this.aborted) {
+                    return
+                }
+
+                this.emitToolCall(toolCall)
+
+                const result = await this.executeToolCall(toolCall, session)
+                results.push(result)
+                this.emitToolResult(result)
+            }
+
+            const toolMessage = createToolMessage(results)
+            session.addMessage(toolMessage)
+
+            this.contextManager.addTokens(response.tokens)
+
+            if (this.contextManager.needsCompression()) {
+                await this.contextManager.compress(session, this.llm)
+            }
+
+            this.contextManager.updateSession(session)
+            await this.sessionStorage.saveSession(session)
+
+            this.emitStatus("thinking")
+        }
+    }
+
+    private async buildMessages(session: Session): Promise<ChatMessage[]> {
+        const messages: ChatMessage[] = []
+
+        messages.push(createSystemMessage(SYSTEM_PROMPT))
+
+        if (this.projectStructure) {
+            const asts = await this.storage.getAllASTs()
+            const metas = await this.storage.getAllMetas()
+            const context = buildInitialContext(this.projectStructure, asts, metas)
+            messages.push(createSystemMessage(context))
+        }
+
+        messages.push(...session.history)
+
+        return messages
+    }
+
+    private async executeToolCall(toolCall: ToolCall, session: Session): Promise<ToolResult> {
+        const startTime = Date.now()
+        const tool = this.tools.get(toolCall.name)
+
+        if (!tool) {
+            return createErrorResult(
+                toolCall.id,
+                `Unknown tool: ${toolCall.name}`,
+                Date.now() - startTime,
+            )
+        }
+
+        const context: ToolContext = {
+            projectRoot: this.projectRoot,
+            storage: this.storage,
+            requestConfirmation: async (msg: string, diff?: DiffInfo) => {
+                return this.handleConfirmation(msg, diff, toolCall, session)
+            },
+            onProgress: (_msg: string) => {
+                this.events.onStatusChange?.("tool_call")
+            },
+        }
+
+        try {
+            const validationError = tool.validateParams(toolCall.params)
+            if (validationError) {
+                return createErrorResult(toolCall.id, validationError, Date.now() - startTime)
+            }
+
+            const result = await tool.execute(toolCall.params, context)
+            return result
+        } catch (error) {
+            const errorMessage = error instanceof Error ? error.message : String(error)
+            return createErrorResult(toolCall.id, errorMessage, Date.now() - startTime)
+        }
+    }
+
+    private async handleConfirmation(
+        msg: string,
+        diff: DiffInfo | undefined,
+        toolCall: ToolCall,
+        session: Session,
+    ): Promise<boolean> {
+        if (this.options.autoApply) {
+            if (diff) {
+                this.createUndoEntryFromDiff(diff, toolCall, session)
+            }
+            return true
+        }
+
+        this.emitStatus("awaiting_confirmation")
+
+        if (this.events.onConfirmation) {
+            const confirmed = await this.events.onConfirmation(msg, diff)
+
+            if (confirmed && diff) {
+                this.createUndoEntryFromDiff(diff, toolCall, session)
+            }
+
+            return confirmed
+        }
+
+        if (diff) {
+            this.createUndoEntryFromDiff(diff, toolCall, session)
+        }
+        return true
+    }
+
+    private createUndoEntryFromDiff(diff: DiffInfo, toolCall: ToolCall, session: Session): void {
+        const entry = createUndoEntry(
+            randomUUID(),
+            diff.filePath,
+            diff.oldLines,
+            diff.newLines,
+            `${toolCall.name}: ${diff.filePath}`,
+            toolCall.id,
+        )
+
+        session.addUndoEntry(entry)
+        void this.sessionStorage.pushUndoEntry(session.id, entry)
+        session.stats.editsApplied++
+        this.events.onUndoEntry?.(entry)
+    }
+
+    private async handleLLMError(error: unknown, session: Session): Promise<void> {
+        this.emitStatus("error")
+
+        const ipuaroError =
+            error instanceof IpuaroError
+                ? error
+                : IpuaroError.llm(error instanceof Error ? error.message : String(error))
+
+        if (this.events.onError) {
+            const choice = await this.events.onError(ipuaroError)
+
+            if (choice === "retry") {
+                this.emitStatus("thinking")
+                return this.execute(session, "")
+            }
+        }
+
+        const errorMessage = createSystemMessage(`Error: ${ipuaroError.message}`)
+        session.addMessage(errorMessage)
+        this.emitMessage(errorMessage)
+
+        this.emitStatus("ready")
+    }
+
+    private emitMessage(message: ChatMessage): void {
+        this.events.onMessage?.(message)
+    }
+
+    private emitToolCall(call: ToolCall): void {
+        this.events.onToolCall?.(call)
+    }
+
+    private emitToolResult(result: ToolResult): void {
+        this.events.onToolResult?.(result)
+    }
+
+    private emitStatus(status: HandleMessageStatus): void {
+        this.events.onStatusChange?.(status)
+    }
+}

packages/ipuaro/src/application/use-cases/StartSession.ts

@@ -0,0 +1,62 @@
+import { randomUUID } from "node:crypto"
+import { Session } from "../../domain/entities/Session.js"
+import type { ISessionStorage } from "../../domain/services/ISessionStorage.js"
+
+/**
+ * Options for starting a session.
+ */
+export interface StartSessionOptions {
+    /** Force creation of a new session even if one exists */
+    forceNew?: boolean
+    /** Specific session ID to load */
+    sessionId?: string
+}
+
+/**
+ * Result of starting a session.
+ */
+export interface StartSessionResult {
+    session: Session
+    isNew: boolean
+}
+
+/**
+ * Use case for starting a session.
+ * Creates a new session or loads the latest one for a project.
+ */
+export class StartSession {
+    constructor(private readonly sessionStorage: ISessionStorage) {}
+
+    /**
+     * Execute the use case.
+     *
+     * @param projectName - The project name to start a session for
+     * @param options - Optional configuration
+     * @returns The session and whether it was newly created
+     */
+    async execute(
+        projectName: string,
+        options: StartSessionOptions = {},
+    ): Promise<StartSessionResult> {
+        if (options.sessionId) {
+            const session = await this.sessionStorage.loadSession(options.sessionId)
+            if (session) {
+                await this.sessionStorage.touchSession(session.id)
+                return { session, isNew: false }
+            }
+        }
+
+        if (!options.forceNew) {
+            const latestSession = await this.sessionStorage.getLatestSession(projectName)
+            if (latestSession) {
+                await this.sessionStorage.touchSession(latestSession.id)
+                return { session: latestSession, isNew: false }
+            }
+        }
+
+        const session = new Session(randomUUID(), projectName)
+        await this.sessionStorage.saveSession(session)
+
+        return { session, isNew: true }
+    }
+}

packages/ipuaro/src/application/use-cases/UndoChange.ts

@@ -0,0 +1,119 @@
+import { promises as fs } from "node:fs"
+import type { Session } from "../../domain/entities/Session.js"
+import type { ISessionStorage } from "../../domain/services/ISessionStorage.js"
+import type { IStorage } from "../../domain/services/IStorage.js"
+import { canUndo, type UndoEntry } from "../../domain/value-objects/UndoEntry.js"
+import { md5 } from "../../shared/utils/hash.js"
+
+/**
+ * Result of undo operation.
+ */
+export interface UndoResult {
+    success: boolean
+    entry?: UndoEntry
+    error?: string
+}
+
+/**
+ * Use case for undoing the last file change.
+ */
+export class UndoChange {
+    constructor(
+        private readonly sessionStorage: ISessionStorage,
+        private readonly storage: IStorage,
+    ) {}
+
+    /**
+     * Execute undo operation.
+     *
+     * @param session - The current session
+     * @returns Result of the undo operation
+     */
+    async execute(session: Session): Promise<UndoResult> {
+        const entry = await this.sessionStorage.popUndoEntry(session.id)
+        if (!entry) {
+            return {
+                success: false,
+                error: "No changes to undo",
+            }
+        }
+
+        try {
+            const currentContent = await this.readCurrentContent(entry.filePath)
+
+            if (!canUndo(entry, currentContent)) {
+                await this.sessionStorage.pushUndoEntry(session.id, entry)
+                return {
+                    success: false,
+                    entry,
+                    error: "File has been modified since the change was made",
+                }
+            }
+
+            await this.restoreContent(entry.filePath, entry.previousContent)
+
+            session.popUndoEntry()
+            session.stats.editsApplied--
+
+            return {
+                success: true,
+                entry,
+            }
+        } catch (error) {
+            await this.sessionStorage.pushUndoEntry(session.id, entry)
+
+            const message = error instanceof Error ? error.message : "Unknown error"
+            return {
+                success: false,
+                entry,
+                error: `Failed to undo: ${message}`,
+            }
+        }
+    }
+
+    /**
+     * Check if undo is available.
+     */
+    async canUndo(session: Session): Promise<boolean> {
+        const stack = await this.sessionStorage.getUndoStack(session.id)
+        return stack.length > 0
+    }
+
+    /**
+     * Get the next undo entry without removing it.
+     */
+    async peekUndoEntry(session: Session): Promise<UndoEntry | null> {
+        const stack = await this.sessionStorage.getUndoStack(session.id)
+        if (stack.length === 0) {
+            return null
+        }
+        return stack[stack.length - 1]
+    }
+
+    private async readCurrentContent(filePath: string): Promise<string[]> {
+        try {
+            const content = await fs.readFile(filePath, "utf-8")
+            return content.split("\n")
+        } catch (error) {
+            if ((error as NodeJS.ErrnoException).code === "ENOENT") {
+                return []
+            }
+            throw error
+        }
+    }
+
+    private async restoreContent(filePath: string, content: string[]): Promise<void> {
+        const fileContent = content.join("\n")
+        await fs.writeFile(filePath, fileContent, "utf-8")
+
+        const hash = md5(fileContent)
+        const stats = await fs.stat(filePath)
+
+        await this.storage.setFile(filePath, {
+            lines: content,
+            hash,
+            size: stats.size,
+            lastModified: stats.mtimeMs,
+        })
+    }
+}

packages/ipuaro/src/application/use-cases/index.ts

@@ -1,4 +1,6 @@
-/*
- * Application Use Cases
- * Will be implemented in version 0.10.0+
- */
+// Application Use Cases
+
+export * from "./StartSession.js"
+export * from "./HandleMessage.js"
+export * from "./UndoChange.js"
+export * from "./ContextManager.js"

packages/ipuaro/src/domain/services/ISessionStorage.ts

@@ -0,0 +1,88 @@
+import type { ContextState, Session, SessionStats } from "../entities/Session.js"
+import type { ChatMessage } from "../value-objects/ChatMessage.js"
+import type { UndoEntry } from "../value-objects/UndoEntry.js"
+
+/**
+ * Session data stored in persistence layer.
+ */
+export interface SessionData {
+    id: string
+    projectName: string
+    createdAt: number
+    lastActivityAt: number
+    history: ChatMessage[]
+    context: ContextState
+    stats: SessionStats
+    inputHistory: string[]
+}
+
+/**
+ * Session list item (minimal info for listing).
+ */
+export interface SessionListItem {
+    id: string
+    projectName: string
+    createdAt: number
+    lastActivityAt: number
+    messageCount: number
+}
+
+/**
+ * Storage service interface for session persistence.
+ */
+export interface ISessionStorage {
+    /**
+     * Save a session to storage.
+     */
+    saveSession(session: Session): Promise<void>
+
+    /**
+     * Load a session by ID.
+     */
+    loadSession(sessionId: string): Promise<Session | null>
+
+    /**
+     * Delete a session.
+     */
+    deleteSession(sessionId: string): Promise<void>
+
+    /**
+     * Get list of all sessions for a project.
+     */
+    listSessions(projectName?: string): Promise<SessionListItem[]>
+
+    /**
+     * Get the latest session for a project.
+     */
+    getLatestSession(projectName: string): Promise<Session | null>
+
+    /**
+     * Check if a session exists.
+     */
+    sessionExists(sessionId: string): Promise<boolean>
+
+    /**
+     * Add undo entry to session's undo stack.
+     */
+    pushUndoEntry(sessionId: string, entry: UndoEntry): Promise<void>
+
+    /**
+     * Pop undo entry from session's undo stack.
+     */
+    popUndoEntry(sessionId: string): Promise<UndoEntry | null>
+
+    /**
+     * Get undo stack for a session.
+     */
+    getUndoStack(sessionId: string): Promise<UndoEntry[]>
+
+    /**
+     * Update session's last activity timestamp.
+     */
+    touchSession(sessionId: string): Promise<void>
+
+    /**
+     * Clear all sessions.
+     */
+    clearAllSessions(): Promise<void>
+}

packages/ipuaro/src/domain/services/index.ts

@@ -1,5 +1,6 @@
 // Domain Service Interfaces (Ports)
 export * from "./IStorage.js"
+export * from "./ISessionStorage.js"
 export * from "./ILLMClient.js"
 export * from "./ITool.js"
 export * from "./IIndexer.js"

packages/ipuaro/src/index.ts

@@ -4,6 +4,11 @@
  * Main entry point for the library.
  */
 
+import { createRequire } from "node:module"
+
+const require = createRequire(import.meta.url)
+const pkg = require("../package.json") as { version: string }
+
 // Domain exports
 export * from "./domain/index.js"
 
@@ -16,5 +21,8 @@ export * from "./shared/index.js"
 // Infrastructure exports
 export * from "./infrastructure/index.js"
 
+// TUI exports
+export * from "./tui/index.js"
+
 // Version
-export const VERSION = "0.2.0"
+export const VERSION = pkg.version

packages/ipuaro/src/infrastructure/index.ts

@@ -1,3 +1,6 @@
 // Infrastructure layer exports
 export * from "./storage/index.js"
 export * from "./indexer/index.js"
+export * from "./llm/index.js"
+export * from "./tools/index.js"
+export * from "./security/index.js"

packages/ipuaro/src/infrastructure/indexer/ASTParser.ts

@@ -306,38 +306,7 @@ export class ASTParser {
             }
         }
 
-        let extendsName: string | undefined
-        const implementsList: string[] = []
-
-        for (const child of node.children) {
-            if (child.type === NodeType.CLASS_HERITAGE) {
-                for (const clause of child.children) {
-                    if (clause.type === NodeType.EXTENDS_CLAUSE) {
-                        const typeNode = clause.children.find(
-                            (c) =>
-                                c.type === NodeType.TYPE_IDENTIFIER ||
-                                c.type === NodeType.IDENTIFIER,
-                        )
-                        extendsName = typeNode?.text
-                    } else if (clause.type === NodeType.IMPLEMENTS_CLAUSE) {
-                        for (const impl of clause.children) {
-                            if (
-                                impl.type === NodeType.TYPE_IDENTIFIER ||
-                                impl.type === NodeType.IDENTIFIER
-                            ) {
-                                implementsList.push(impl.text)
-                            }
-                        }
-                    }
-                }
-            } else if (child.type === NodeType.EXTENDS_CLAUSE) {
-                const typeNode = child.children.find(
-                    (c) => c.type === NodeType.TYPE_IDENTIFIER || c.type === NodeType.IDENTIFIER,
-                )
-                extendsName = typeNode?.text
-            }
-        }
-
+        const { extendsName, implementsList } = this.extractClassHeritage(node)
         const isAbstract = node.children.some((c) => c.type === NodeType.ABSTRACT)
 
         ast.classes.push({
@@ -353,6 +322,56 @@ export class ASTParser {
         })
     }
 
+    private extractClassHeritage(node: SyntaxNode): {
+        extendsName: string | undefined
+        implementsList: string[]
+    } {
+        let extendsName: string | undefined
+        const implementsList: string[] = []
+
+        for (const child of node.children) {
+            if (child.type === NodeType.CLASS_HERITAGE) {
+                this.parseHeritageClause(child, (ext) => (extendsName = ext), implementsList)
+            } else if (child.type === NodeType.EXTENDS_CLAUSE) {
+                extendsName = this.findTypeIdentifier(child)
+            }
+        }
+
+        return { extendsName, implementsList }
+    }
+
+    private parseHeritageClause(
+        heritage: SyntaxNode,
+        setExtends: (name: string) => void,
+        implementsList: string[],
+    ): void {
+        for (const clause of heritage.children) {
+            if (clause.type === NodeType.EXTENDS_CLAUSE) {
+                const typeId = this.findTypeIdentifier(clause)
+                if (typeId) {
+                    setExtends(typeId)
+                }
+            } else if (clause.type === NodeType.IMPLEMENTS_CLAUSE) {
+                this.collectImplements(clause, implementsList)
+            }
+        }
+    }
+
+    private findTypeIdentifier(node: SyntaxNode): string | undefined {
+        const typeNode = node.children.find(
+            (c) => c.type === NodeType.TYPE_IDENTIFIER || c.type === NodeType.IDENTIFIER,
+        )
+        return typeNode?.text
+    }
+
+    private collectImplements(clause: SyntaxNode, list: string[]): void {
+        for (const impl of clause.children) {
+            if (impl.type === NodeType.TYPE_IDENTIFIER || impl.type === NodeType.IDENTIFIER) {
+                list.push(impl.text)
+            }
+        }
+    }
+
     private extractMethod(node: SyntaxNode): MethodInfo {
         const nameNode = node.childForFieldName(FieldName.NAME)
         const params = this.extractParameters(node)

packages/ipuaro/src/infrastructure/llm/OllamaClient.ts

@@ -0,0 +1,302 @@
+import { type Message, Ollama, type Tool } from "ollama"
+import type {
+    ILLMClient,
+    LLMResponse,
+    ToolDef,
+    ToolParameter,
+} from "../../domain/services/ILLMClient.js"
+import type { ChatMessage } from "../../domain/value-objects/ChatMessage.js"
+import { createToolCall, type ToolCall } from "../../domain/value-objects/ToolCall.js"
+import type { LLMConfig } from "../../shared/constants/config.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+import { estimateTokens } from "../../shared/utils/tokens.js"
+
+/**
+ * Ollama LLM client implementation.
+ * Wraps the Ollama SDK for chat completions with tool support.
+ */
+export class OllamaClient implements ILLMClient {
+    private readonly client: Ollama
+    private readonly host: string
+    private readonly model: string
+    private readonly contextWindow: number
+    private readonly temperature: number
+    private readonly timeout: number
+    private abortController: AbortController | null = null
+
+    constructor(config: LLMConfig) {
+        this.host = config.host
+        this.client = new Ollama({ host: this.host })
+        this.model = config.model
+        this.contextWindow = config.contextWindow
+        this.temperature = config.temperature
+        this.timeout = config.timeout
+    }
+
+    /**
+     * Send messages to LLM and get response.
+     */
+    async chat(messages: ChatMessage[], tools?: ToolDef[]): Promise<LLMResponse> {
+        const startTime = Date.now()
+        this.abortController = new AbortController()
+
+        try {
+            const ollamaMessages = this.convertMessages(messages)
+            const ollamaTools = tools ? this.convertTools(tools) : undefined
+
+            const response = await this.client.chat({
+                model: this.model,
+                messages: ollamaMessages,
+                tools: ollamaTools,
+                options: {
+                    temperature: this.temperature,
+                },
+                stream: false,
+            })
+
+            const timeMs = Date.now() - startTime
+            const toolCalls = this.extractToolCalls(response.message)
+
+            return {
+                content: response.message.content,
+                toolCalls,
+                tokens: response.eval_count ?? estimateTokens(response.message.content),
+                timeMs,
+                truncated: false,
+                stopReason: this.determineStopReason(response, toolCalls),
+            }
+        } catch (error) {
+            if (error instanceof Error && error.name === "AbortError") {
+                throw IpuaroError.llm("Request was aborted")
+            }
+            throw this.handleError(error)
+        } finally {
+            this.abortController = null
+        }
+    }
+
+    /**
+     * Count tokens in text.
+     * Uses estimation since Ollama doesn't provide a tokenizer endpoint.
+     */
+    async countTokens(text: string): Promise<number> {
+        return Promise.resolve(estimateTokens(text))
+    }
+
+    /**
+     * Check if LLM service is available.
+     */
+    async isAvailable(): Promise<boolean> {
+        try {
+            await this.client.list()
+            return true
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Get current model name.
+     */
+    getModelName(): string {
+        return this.model
+    }
+
+    /**
+     * Get context window size.
+     */
+    getContextWindowSize(): number {
+        return this.contextWindow
+    }
+
+    /**
+     * Pull/download model if not available locally.
+     */
+    async pullModel(model: string): Promise<void> {
+        try {
+            await this.client.pull({ model, stream: false })
+        } catch (error) {
+            throw this.handleError(error, `Failed to pull model: ${model}`)
+        }
+    }
+
+    /**
+     * Check if a specific model is available locally.
+     */
+    async hasModel(model: string): Promise<boolean> {
+        try {
+            const result = await this.client.list()
+            return result.models.some((m) => m.name === model || m.name.startsWith(`${model}:`))
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * List available models.
+     */
+    async listModels(): Promise<string[]> {
+        try {
+            const result = await this.client.list()
+            return result.models.map((m) => m.name)
+        } catch (error) {
+            throw this.handleError(error, "Failed to list models")
+        }
+    }
+
+    /**
+     * Abort current generation.
+     */
+    abort(): void {
+        if (this.abortController) {
+            this.abortController.abort()
+        }
+    }
+
+    /**
+     * Convert ChatMessage array to Ollama Message format.
+     */
+    private convertMessages(messages: ChatMessage[]): Message[] {
+        return messages.map((msg): Message => {
+            const role = this.convertRole(msg.role)
+
+            if (msg.role === "tool" && msg.toolResults) {
+                return {
+                    role: "tool",
+                    content: msg.content,
+                }
+            }
+
+            if (msg.role === "assistant" && msg.toolCalls && msg.toolCalls.length > 0) {
+                return {
+                    role: "assistant",
+                    content: msg.content,
+                    tool_calls: msg.toolCalls.map((tc) => ({
+                        function: {
+                            name: tc.name,
+                            arguments: tc.params,
+                        },
+                    })),
+                }
+            }
+
+            return {
+                role,
+                content: msg.content,
+            }
+        })
+    }
+
+    /**
+     * Convert message role to Ollama role.
+     */
+    private convertRole(role: ChatMessage["role"]): "user" | "assistant" | "system" | "tool" {
+        switch (role) {
+            case "user":
+                return "user"
+            case "assistant":
+                return "assistant"
+            case "system":
+                return "system"
+            case "tool":
+                return "tool"
+            default:
+                return "user"
+        }
+    }
+
+    /**
+     * Convert ToolDef array to Ollama Tool format.
+     */
+    private convertTools(tools: ToolDef[]): Tool[] {
+        return tools.map(
+            (tool): Tool => ({
+                type: "function",
+                function: {
+                    name: tool.name,
+                    description: tool.description,
+                    parameters: {
+                        type: "object",
+                        properties: this.convertParameters(tool.parameters),
+                        required: tool.parameters.filter((p) => p.required).map((p) => p.name),
+                    },
+                },
+            }),
+        )
+    }
+
+    /**
+     * Convert ToolParameter array to JSON Schema properties.
+     */
+    private convertParameters(
+        params: ToolParameter[],
+    ): Record<string, { type: string; description: string; enum?: string[] }> {
+        const properties: Record<string, { type: string; description: string; enum?: string[] }> =
+            {}
+
+        for (const param of params) {
+            properties[param.name] = {
+                type: param.type,
+                description: param.description,
+                ...(param.enum && { enum: param.enum }),
+            }
+        }
+
+        return properties
+    }
+
+    /**
+     * Extract tool calls from Ollama response message.
+     */
+    private extractToolCalls(message: Message): ToolCall[] {
+        if (!message.tool_calls || message.tool_calls.length === 0) {
+            return []
+        }
+
+        return message.tool_calls.map((tc, index) =>
+            createToolCall(
+                `call_${String(Date.now())}_${String(index)}`,
+                tc.function.name,
+                tc.function.arguments,
+            ),
+        )
+    }
+
+    /**
+     * Determine stop reason from response.
+     */
+    private determineStopReason(
+        response: { done_reason?: string },
+        toolCalls: ToolCall[],
+    ): "end" | "length" | "tool_use" {
+        if (toolCalls.length > 0) {
+            return "tool_use"
+        }
+
+        if (response.done_reason === "length") {
+            return "length"
+        }
+
+        return "end"
+    }
+
+    /**
+     * Handle and wrap errors.
+     */
+    private handleError(error: unknown, context?: string): IpuaroError {
+        const message = error instanceof Error ? error.message : String(error)
+        const fullMessage = context ? `${context}: ${message}` : message
+
+        if (message.includes("ECONNREFUSED") || message.includes("fetch failed")) {
+            return IpuaroError.llm(`Cannot connect to Ollama at ${this.host}`)
+        }
+
+        if (message.includes("model") && message.includes("not found")) {
+            return IpuaroError.llm(
+                `Model "${this.model}" not found. Run: ollama pull ${this.model}`,
+            )
+        }
+
+        return IpuaroError.llm(fullMessage)
+    }
+}

packages/ipuaro/src/infrastructure/llm/ResponseParser.ts

@@ -0,0 +1,220 @@
+import { createToolCall, type ToolCall } from "../../domain/value-objects/ToolCall.js"
+
+/**
+ * Parsed response from LLM.
+ */
+export interface ParsedResponse {
+    /** Text content (excluding tool calls) */
+    content: string
+    /** Extracted tool calls */
+    toolCalls: ToolCall[]
+    /** Whether parsing encountered issues */
+    hasParseErrors: boolean
+    /** Parse error messages */
+    parseErrors: string[]
+}
+
+/**
+ * XML tool call tag pattern.
+ * Matches: <tool_call name="tool_name">...</tool_call>
+ */
+const TOOL_CALL_REGEX = /<tool_call\s+name\s*=\s*"([^"]+)">([\s\S]*?)<\/tool_call>/gi
+
+/**
+ * XML parameter tag pattern.
+ * Matches: <param name="param_name">value</param> or <param_name>value</param_name>
+ */
+const PARAM_REGEX_NAMED = /<param\s+name\s*=\s*"([^"]+)">([\s\S]*?)<\/param>/gi
+const PARAM_REGEX_ELEMENT = /<([a-z_][a-z0-9_]*)>([\s\S]*?)<\/\1>/gi
+
+/**
+ * Parse tool calls from LLM response text.
+ * Supports XML format: <tool_call name="get_lines"><path>src/index.ts</path></tool_call>
+ */
+export function parseToolCalls(response: string): ParsedResponse {
+    const toolCalls: ToolCall[] = []
+    const parseErrors: string[] = []
+    let content = response
+
+    const matches = [...response.matchAll(TOOL_CALL_REGEX)]
+
+    for (const match of matches) {
+        const [fullMatch, toolName, paramsXml] = match
+
+        try {
+            const params = parseParameters(paramsXml)
+            const toolCall = createToolCall(
+                `xml_${String(Date.now())}_${String(toolCalls.length)}`,
+                toolName,
+                params,
+            )
+            toolCalls.push(toolCall)
+            content = content.replace(fullMatch, "")
+        } catch (error) {
+            const errorMsg = error instanceof Error ? error.message : String(error)
+            parseErrors.push(`Failed to parse tool call "${toolName}": ${errorMsg}`)
+        }
+    }
+
+    content = content.trim()
+
+    return {
+        content,
+        toolCalls,
+        hasParseErrors: parseErrors.length > 0,
+        parseErrors,
+    }
+}
+
+/**
+ * Parse parameters from XML content.
+ */
+function parseParameters(xml: string): Record<string, unknown> {
+    const params: Record<string, unknown> = {}
+
+    const namedMatches = [...xml.matchAll(PARAM_REGEX_NAMED)]
+    for (const match of namedMatches) {
+        const [, name, value] = match
+        params[name] = parseValue(value)
+    }
+
+    if (namedMatches.length === 0) {
+        const elementMatches = [...xml.matchAll(PARAM_REGEX_ELEMENT)]
+        for (const match of elementMatches) {
+            const [, name, value] = match
+            params[name] = parseValue(value)
+        }
+    }
+
+    return params
+}
+
+/**
+ * Parse a value string to appropriate type.
+ */
+function parseValue(value: string): unknown {
+    const trimmed = value.trim()
+
+    if (trimmed === "true") {
+        return true
+    }
+
+    if (trimmed === "false") {
+        return false
+    }
+
+    if (trimmed === "null") {
+        return null
+    }
+
+    const num = Number(trimmed)
+    if (!isNaN(num) && trimmed !== "") {
+        return num
+    }
+
+    if (
+        (trimmed.startsWith("[") && trimmed.endsWith("]")) ||
+        (trimmed.startsWith("{") && trimmed.endsWith("}"))
+    ) {
+        try {
+            return JSON.parse(trimmed)
+        } catch {
+            return trimmed
+        }
+    }
+
+    return trimmed
+}
+
+/**
+ * Format tool calls to XML for prompt injection.
+ * Useful when you need to show the LLM the expected format.
+ */
+export function formatToolCallsAsXml(toolCalls: ToolCall[]): string {
+    return toolCalls
+        .map((tc) => {
+            const params = Object.entries(tc.params)
+                .map(([key, value]) => `  <${key}>${formatValueForXml(value)}</${key}>`)
+                .join("\n")
+            return `<tool_call name="${tc.name}">\n${params}\n</tool_call>`
+        })
+        .join("\n\n")
+}
+
+/**
+ * Format a value for XML output.
+ */
+function formatValueForXml(value: unknown): string {
+    if (value === null || value === undefined) {
+        return ""
+    }
+
+    if (typeof value === "object") {
+        return JSON.stringify(value)
+    }
+
+    if (typeof value === "string") {
+        return value
+    }
+
+    if (typeof value === "number" || typeof value === "boolean") {
+        return String(value)
+    }
+
+    return JSON.stringify(value)
+}
+
+/**
+ * Extract thinking/reasoning from response.
+ * Matches content between <thinking>...</thinking> tags.
+ */
+export function extractThinking(response: string): { thinking: string; content: string } {
+    const thinkingRegex = /<thinking>([\s\S]*?)<\/thinking>/gi
+    const matches = [...response.matchAll(thinkingRegex)]
+
+    if (matches.length === 0) {
+        return { thinking: "", content: response }
+    }
+
+    let content = response
+    const thoughts: string[] = []
+
+    for (const match of matches) {
+        thoughts.push(match[1].trim())
+        content = content.replace(match[0], "")
+    }
+
+    return {
+        thinking: thoughts.join("\n\n"),
+        content: content.trim(),
+    }
+}
+
+/**
+ * Check if response contains tool calls.
+ */
+export function hasToolCalls(response: string): boolean {
+    return TOOL_CALL_REGEX.test(response)
+}
+
+/**
+ * Validate tool call parameters against expected schema.
+ */
+export function validateToolCallParams(
+    toolName: string,
+    params: Record<string, unknown>,
+    requiredParams: string[],
+): { valid: boolean; errors: string[] } {
+    const errors: string[] = []
+
+    for (const param of requiredParams) {
+        if (!(param in params) || params[param] === undefined || params[param] === null) {
+            errors.push(`Missing required parameter: ${param}`)
+        }
+    }
+
+    return {
+        valid: errors.length === 0,
+        errors,
+    }
+}

packages/ipuaro/src/infrastructure/llm/index.ts

@@ -0,0 +1,48 @@
+// LLM infrastructure exports
+export { OllamaClient } from "./OllamaClient.js"
+export {
+    SYSTEM_PROMPT,
+    buildInitialContext,
+    buildFileContext,
+    truncateContext,
+    type ProjectStructure,
+} from "./prompts.js"
+export {
+    ALL_TOOLS,
+    READ_TOOLS,
+    EDIT_TOOLS,
+    SEARCH_TOOLS,
+    ANALYSIS_TOOLS,
+    GIT_TOOLS,
+    RUN_TOOLS,
+    CONFIRMATION_TOOLS,
+    requiresConfirmation,
+    getToolDef,
+    getToolsByCategory,
+    GET_LINES_TOOL,
+    GET_FUNCTION_TOOL,
+    GET_CLASS_TOOL,
+    GET_STRUCTURE_TOOL,
+    EDIT_LINES_TOOL,
+    CREATE_FILE_TOOL,
+    DELETE_FILE_TOOL,
+    FIND_REFERENCES_TOOL,
+    FIND_DEFINITION_TOOL,
+    GET_DEPENDENCIES_TOOL,
+    GET_DEPENDENTS_TOOL,
+    GET_COMPLEXITY_TOOL,
+    GET_TODOS_TOOL,
+    GIT_STATUS_TOOL,
+    GIT_DIFF_TOOL,
+    GIT_COMMIT_TOOL,
+    RUN_COMMAND_TOOL,
+    RUN_TESTS_TOOL,
+} from "./toolDefs.js"
+export {
+    parseToolCalls,
+    formatToolCallsAsXml,
+    extractThinking,
+    hasToolCalls,
+    validateToolCallParams,
+    type ParsedResponse,
+} from "./ResponseParser.js"

packages/ipuaro/src/infrastructure/llm/prompts.ts

@@ -0,0 +1,335 @@
+import type { FileAST } from "../../domain/value-objects/FileAST.js"
+import type { FileMeta } from "../../domain/value-objects/FileMeta.js"
+
+/**
+ * Project structure for context building.
+ */
+export interface ProjectStructure {
+    name: string
+    rootPath: string
+    files: string[]
+    directories: string[]
+}
+
+/**
+ * System prompt for the ipuaro AI agent.
+ */
+export const SYSTEM_PROMPT = `You are ipuaro, a local AI code assistant specialized in helping developers understand and modify their codebase. You operate within a single project directory and have access to powerful tools for reading, searching, analyzing, and editing code.
+
+## Core Principles
+
+1. **Lazy Loading**: You don't have the full code in context. Use tools to fetch exactly what you need.
+2. **Precision**: Always verify file paths and line numbers before making changes.
+3. **Safety**: Confirm destructive operations. Never execute dangerous commands.
+4. **Efficiency**: Minimize context usage. Request only necessary code sections.
+
+## Available Tools
+
+### Reading Tools
+- \`get_lines\`: Get specific lines from a file
+- \`get_function\`: Get a function by name
+- \`get_class\`: Get a class by name
+- \`get_structure\`: Get project directory structure
+
+### Editing Tools (require confirmation)
+- \`edit_lines\`: Replace specific lines in a file
+- \`create_file\`: Create a new file
+- \`delete_file\`: Delete a file
+
+### Search Tools
+- \`find_references\`: Find all usages of a symbol
+- \`find_definition\`: Find where a symbol is defined
+
+### Analysis Tools
+- \`get_dependencies\`: Get files this file imports
+- \`get_dependents\`: Get files that import this file
+- \`get_complexity\`: Get complexity metrics
+- \`get_todos\`: Find TODO/FIXME comments
+
+### Git Tools
+- \`git_status\`: Get repository status
+- \`git_diff\`: Get uncommitted changes
+- \`git_commit\`: Create a commit (requires confirmation)
+
+### Run Tools
+- \`run_command\`: Execute a shell command (security checked)
+- \`run_tests\`: Run the test suite
+
+## Response Guidelines
+
+1. **Be concise**: Don't repeat information already in context.
+2. **Show your work**: Explain what tools you're using and why.
+3. **Verify before editing**: Always read the target code before modifying it.
+4. **Handle errors gracefully**: If a tool fails, explain what went wrong and suggest alternatives.
+
+## Code Editing Rules
+
+1. Always use \`get_lines\` or \`get_function\` before \`edit_lines\`.
+2. Provide exact line numbers for edits.
+3. For large changes, break into multiple small edits.
+4. After editing, suggest running tests if available.
+
+## Safety Rules
+
+1. Never execute commands that could harm the system.
+2. Never expose sensitive data (API keys, passwords).
+3. Always confirm file deletions and destructive git operations.
+4. Stay within the project directory.
+
+When you need to perform an action, use the appropriate tool. Think step by step about what information you need and which tools will provide it most efficiently.`
+
+/**
+ * Build initial context from project structure and AST metadata.
+ * Returns a compact representation without actual code.
+ */
+export function buildInitialContext(
+    structure: ProjectStructure,
+    asts: Map<string, FileAST>,
+    metas?: Map<string, FileMeta>,
+): string {
+    const sections: string[] = []
+
+    sections.push(formatProjectHeader(structure))
+    sections.push(formatDirectoryTree(structure))
+    sections.push(formatFileOverview(asts, metas))
+
+    return sections.join("\n\n")
+}
+
+/**
+ * Format project header section.
+ */
+function formatProjectHeader(structure: ProjectStructure): string {
+    const fileCount = String(structure.files.length)
+    const dirCount = String(structure.directories.length)
+    return `# Project: ${structure.name}
+Root: ${structure.rootPath}
+Files: ${fileCount} | Directories: ${dirCount}`
+}
+
+/**
+ * Format directory tree.
+ */
+function formatDirectoryTree(structure: ProjectStructure): string {
+    const lines: string[] = ["## Structure", ""]
+
+    const sortedDirs = [...structure.directories].sort()
+    for (const dir of sortedDirs) {
+        const depth = dir.split("/").length - 1
+        const indent = "  ".repeat(depth)
+        const name = dir.split("/").pop() ?? dir
+        lines.push(`${indent}${name}/`)
+    }
+
+    return lines.join("\n")
+}
+
+/**
+ * Format file overview with AST summaries.
+ */
+function formatFileOverview(asts: Map<string, FileAST>, metas?: Map<string, FileMeta>): string {
+    const lines: string[] = ["## Files", ""]
+
+    const sortedPaths = [...asts.keys()].sort()
+    for (const path of sortedPaths) {
+        const ast = asts.get(path)
+        if (!ast) {
+            continue
+        }
+
+        const meta = metas?.get(path)
+        lines.push(formatFileSummary(path, ast, meta))
+    }
+
+    return lines.join("\n")
+}
+
+/**
+ * Format a single file's AST summary.
+ */
+function formatFileSummary(path: string, ast: FileAST, meta?: FileMeta): string {
+    const parts: string[] = []
+
+    if (ast.functions.length > 0) {
+        const names = ast.functions.map((f) => f.name).join(", ")
+        parts.push(`fn: ${names}`)
+    }
+
+    if (ast.classes.length > 0) {
+        const names = ast.classes.map((c) => c.name).join(", ")
+        parts.push(`class: ${names}`)
+    }
+
+    if (ast.interfaces.length > 0) {
+        const names = ast.interfaces.map((i) => i.name).join(", ")
+        parts.push(`interface: ${names}`)
+    }
+
+    if (ast.typeAliases.length > 0) {
+        const names = ast.typeAliases.map((t) => t.name).join(", ")
+        parts.push(`type: ${names}`)
+    }
+
+    const summary = parts.length > 0 ? ` [${parts.join(" | ")}]` : ""
+    const flags = formatFileFlags(meta)
+
+    return `- ${path}${summary}${flags}`
+}
+
+/**
+ * Format file metadata flags.
+ */
+function formatFileFlags(meta?: FileMeta): string {
+    if (!meta) {
+        return ""
+    }
+
+    const flags: string[] = []
+
+    if (meta.isHub) {
+        flags.push("hub")
+    }
+
+    if (meta.isEntryPoint) {
+        flags.push("entry")
+    }
+
+    if (meta.complexity.score > 70) {
+        flags.push("complex")
+    }
+
+    return flags.length > 0 ? ` (${flags.join(", ")})` : ""
+}
+
+/**
+ * Format line range for display.
+ */
+function formatLineRange(start: number, end: number): string {
+    return `[${String(start)}-${String(end)}]`
+}
+
+/**
+ * Format imports section.
+ */
+function formatImportsSection(ast: FileAST): string[] {
+    if (ast.imports.length === 0) {
+        return []
+    }
+    const lines = ["### Imports"]
+    for (const imp of ast.imports) {
+        lines.push(`- ${imp.name} from "${imp.from}" (${imp.type})`)
+    }
+    lines.push("")
+    return lines
+}
+
+/**
+ * Format exports section.
+ */
+function formatExportsSection(ast: FileAST): string[] {
+    if (ast.exports.length === 0) {
+        return []
+    }
+    const lines = ["### Exports"]
+    for (const exp of ast.exports) {
+        const defaultMark = exp.isDefault ? " (default)" : ""
+        lines.push(`- ${exp.kind} ${exp.name}${defaultMark}`)
+    }
+    lines.push("")
+    return lines
+}
+
+/**
+ * Format functions section.
+ */
+function formatFunctionsSection(ast: FileAST): string[] {
+    if (ast.functions.length === 0) {
+        return []
+    }
+    const lines = ["### Functions"]
+    for (const fn of ast.functions) {
+        const params = fn.params.map((p) => p.name).join(", ")
+        const asyncMark = fn.isAsync ? "async " : ""
+        const range = formatLineRange(fn.lineStart, fn.lineEnd)
+        lines.push(`- ${asyncMark}${fn.name}(${params}) ${range}`)
+    }
+    lines.push("")
+    return lines
+}
+
+/**
+ * Format classes section.
+ */
+function formatClassesSection(ast: FileAST): string[] {
+    if (ast.classes.length === 0) {
+        return []
+    }
+    const lines = ["### Classes"]
+    for (const cls of ast.classes) {
+        const ext = cls.extends ? ` extends ${cls.extends}` : ""
+        const impl = cls.implements.length > 0 ? ` implements ${cls.implements.join(", ")}` : ""
+        const range = formatLineRange(cls.lineStart, cls.lineEnd)
+        lines.push(`- ${cls.name}${ext}${impl} ${range}`)
+
+        for (const method of cls.methods) {
+            const vis = method.visibility === "public" ? "" : `${method.visibility} `
+            const methodRange = formatLineRange(method.lineStart, method.lineEnd)
+            lines.push(`  - ${vis}${method.name}() ${methodRange}`)
+        }
+    }
+    lines.push("")
+    return lines
+}
+
+/**
+ * Format metadata section.
+ */
+function formatMetadataSection(meta: FileMeta): string[] {
+    const loc = String(meta.complexity.loc)
+    const score = String(meta.complexity.score)
+    const deps = String(meta.dependencies.length)
+    const dependents = String(meta.dependents.length)
+    return [
+        "### Metadata",
+        `- LOC: ${loc}`,
+        `- Complexity: ${score}/100`,
+        `- Dependencies: ${deps}`,
+        `- Dependents: ${dependents}`,
+    ]
+}
+
+/**
+ * Build context for a specific file request.
+ */
+export function buildFileContext(path: string, ast: FileAST, meta?: FileMeta): string {
+    const lines: string[] = [`## ${path}`, ""]
+
+    lines.push(...formatImportsSection(ast))
+    lines.push(...formatExportsSection(ast))
+    lines.push(...formatFunctionsSection(ast))
+    lines.push(...formatClassesSection(ast))
+
+    if (meta) {
+        lines.push(...formatMetadataSection(meta))
+    }
+
+    return lines.join("\n")
+}
+
+/**
+ * Truncate context to fit within token budget.
+ */
+export function truncateContext(context: string, maxTokens: number): string {
+    const charsPerToken = 4
+    const maxChars = maxTokens * charsPerToken
+
+    if (context.length <= maxChars) {
+        return context
+    }
+
+    const truncated = context.slice(0, maxChars - 100)
+    const lastNewline = truncated.lastIndexOf("\n")
+    const remaining = String(context.length - lastNewline)
+
+    return `${truncated.slice(0, lastNewline)}\n\n... (truncated, ${remaining} chars remaining)`
+}

packages/ipuaro/src/infrastructure/llm/toolDefs.ts

@@ -0,0 +1,511 @@
+import type { ToolDef } from "../../domain/services/ILLMClient.js"
+
+/**
+ * Tool definitions for ipuaro LLM.
+ * 18 tools across 6 categories: read, edit, search, analysis, git, run.
+ */
+
+/*
+ * =============================================================================
+ * Read Tools (4)
+ * =============================================================================
+ */
+
+export const GET_LINES_TOOL: ToolDef = {
+    name: "get_lines",
+    description:
+        "Get specific lines from a file. Returns the content with line numbers. " +
+        "If no range is specified, returns the entire file.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "start",
+            type: "number",
+            description: "Start line number (1-based, inclusive)",
+            required: false,
+        },
+        {
+            name: "end",
+            type: "number",
+            description: "End line number (1-based, inclusive)",
+            required: false,
+        },
+    ],
+}
+
+export const GET_FUNCTION_TOOL: ToolDef = {
+    name: "get_function",
+    description:
+        "Get a function's source code by name. Uses AST to find exact line range. " +
+        "Returns the function code with line numbers.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "name",
+            type: "string",
+            description: "Function name to retrieve",
+            required: true,
+        },
+    ],
+}
+
+export const GET_CLASS_TOOL: ToolDef = {
+    name: "get_class",
+    description:
+        "Get a class's source code by name. Uses AST to find exact line range. " +
+        "Returns the class code with line numbers.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "name",
+            type: "string",
+            description: "Class name to retrieve",
+            required: true,
+        },
+    ],
+}
+
+export const GET_STRUCTURE_TOOL: ToolDef = {
+    name: "get_structure",
+    description:
+        "Get project directory structure as a tree. " +
+        "If path is specified, shows structure of that subdirectory only.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "Subdirectory path relative to project root (optional, defaults to root)",
+            required: false,
+        },
+        {
+            name: "depth",
+            type: "number",
+            description: "Maximum depth to traverse (default: unlimited)",
+            required: false,
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Edit Tools (3) - All require confirmation
+ * =============================================================================
+ */
+
+export const EDIT_LINES_TOOL: ToolDef = {
+    name: "edit_lines",
+    description:
+        "Replace lines in a file with new content. Requires reading the file first. " +
+        "Will show diff and ask for confirmation before applying.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "start",
+            type: "number",
+            description: "Start line number (1-based, inclusive) to replace",
+            required: true,
+        },
+        {
+            name: "end",
+            type: "number",
+            description: "End line number (1-based, inclusive) to replace",
+            required: true,
+        },
+        {
+            name: "content",
+            type: "string",
+            description: "New content to insert (can be multiple lines)",
+            required: true,
+        },
+    ],
+}
+
+export const CREATE_FILE_TOOL: ToolDef = {
+    name: "create_file",
+    description:
+        "Create a new file with specified content. " +
+        "Will fail if file already exists. Will ask for confirmation.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "content",
+            type: "string",
+            description: "File content",
+            required: true,
+        },
+    ],
+}
+
+export const DELETE_FILE_TOOL: ToolDef = {
+    name: "delete_file",
+    description:
+        "Delete a file from the project. " +
+        "Will ask for confirmation. Previous content is saved to undo stack.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Search Tools (2)
+ * =============================================================================
+ */
+
+export const FIND_REFERENCES_TOOL: ToolDef = {
+    name: "find_references",
+    description:
+        "Find all usages of a symbol across the codebase. " +
+        "Returns list of file paths, line numbers, and context.",
+    parameters: [
+        {
+            name: "symbol",
+            type: "string",
+            description: "Symbol name to search for (function, class, variable, etc.)",
+            required: true,
+        },
+        {
+            name: "path",
+            type: "string",
+            description: "Limit search to specific file or directory",
+            required: false,
+        },
+    ],
+}
+
+export const FIND_DEFINITION_TOOL: ToolDef = {
+    name: "find_definition",
+    description:
+        "Find where a symbol is defined. " + "Returns file path, line number, and symbol type.",
+    parameters: [
+        {
+            name: "symbol",
+            type: "string",
+            description: "Symbol name to find definition for",
+            required: true,
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Analysis Tools (4)
+ * =============================================================================
+ */
+
+export const GET_DEPENDENCIES_TOOL: ToolDef = {
+    name: "get_dependencies",
+    description:
+        "Get files that this file imports (internal dependencies). " +
+        "Returns list of imported file paths.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+    ],
+}
+
+export const GET_DEPENDENTS_TOOL: ToolDef = {
+    name: "get_dependents",
+    description:
+        "Get files that import this file (reverse dependencies). " +
+        "Returns list of file paths that depend on this file.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+    ],
+}
+
+export const GET_COMPLEXITY_TOOL: ToolDef = {
+    name: "get_complexity",
+    description:
+        "Get complexity metrics for a file or the entire project. " +
+        "Returns LOC, nesting depth, cyclomatic complexity, and overall score.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "File path (optional, defaults to all files sorted by complexity)",
+            required: false,
+        },
+        {
+            name: "limit",
+            type: "number",
+            description: "Max files to return when showing all (default: 10)",
+            required: false,
+        },
+    ],
+}
+
+export const GET_TODOS_TOOL: ToolDef = {
+    name: "get_todos",
+    description:
+        "Find TODO, FIXME, HACK, and XXX comments in the codebase. " +
+        "Returns list with file paths, line numbers, and comment text.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "Limit search to specific file or directory",
+            required: false,
+        },
+        {
+            name: "type",
+            type: "string",
+            description: "Filter by comment type",
+            required: false,
+            enum: ["TODO", "FIXME", "HACK", "XXX"],
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Git Tools (3)
+ * =============================================================================
+ */
+
+export const GIT_STATUS_TOOL: ToolDef = {
+    name: "git_status",
+    description:
+        "Get current git repository status. " +
+        "Returns branch name, staged files, modified files, and untracked files.",
+    parameters: [],
+}
+
+export const GIT_DIFF_TOOL: ToolDef = {
+    name: "git_diff",
+    description:
+        "Get uncommitted changes (diff). " + "Shows what has changed but not yet committed.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "Limit diff to specific file or directory",
+            required: false,
+        },
+        {
+            name: "staged",
+            type: "boolean",
+            description: "Show only staged changes (default: false, shows all)",
+            required: false,
+        },
+    ],
+}
+
+export const GIT_COMMIT_TOOL: ToolDef = {
+    name: "git_commit",
+    description:
+        "Create a git commit with the specified message. " +
+        "Will ask for confirmation. Optionally stage specific files first.",
+    parameters: [
+        {
+            name: "message",
+            type: "string",
+            description: "Commit message",
+            required: true,
+        },
+        {
+            name: "files",
+            type: "array",
+            description: "Files to stage before commit (optional, defaults to all staged)",
+            required: false,
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Run Tools (2)
+ * =============================================================================
+ */
+
+export const RUN_COMMAND_TOOL: ToolDef = {
+    name: "run_command",
+    description:
+        "Execute a shell command in the project directory. " +
+        "Commands are checked against blacklist/whitelist for security. " +
+        "Unknown commands require user confirmation.",
+    parameters: [
+        {
+            name: "command",
+            type: "string",
+            description: "Shell command to execute",
+            required: true,
+        },
+        {
+            name: "timeout",
+            type: "number",
+            description: "Timeout in milliseconds (default: 30000)",
+            required: false,
+        },
+    ],
+}
+
+export const RUN_TESTS_TOOL: ToolDef = {
+    name: "run_tests",
+    description:
+        "Run the project's test suite. Auto-detects test runner (vitest, jest, npm test). " +
+        "Returns test results summary.",
+    parameters: [
+        {
+            name: "path",
+            type: "string",
+            description: "Run tests for specific file or directory",
+            required: false,
+        },
+        {
+            name: "filter",
+            type: "string",
+            description: "Filter tests by name pattern",
+            required: false,
+        },
+        {
+            name: "watch",
+            type: "boolean",
+            description: "Run in watch mode (default: false)",
+            required: false,
+        },
+    ],
+}
+
+/*
+ * =============================================================================
+ * Tool Collection
+ * =============================================================================
+ */
+
+/**
+ * All read tools (no confirmation required).
+ */
+export const READ_TOOLS: ToolDef[] = [
+    GET_LINES_TOOL,
+    GET_FUNCTION_TOOL,
+    GET_CLASS_TOOL,
+    GET_STRUCTURE_TOOL,
+]
+
+/**
+ * All edit tools (require confirmation).
+ */
+export const EDIT_TOOLS: ToolDef[] = [EDIT_LINES_TOOL, CREATE_FILE_TOOL, DELETE_FILE_TOOL]
+
+/**
+ * All search tools (no confirmation required).
+ */
+export const SEARCH_TOOLS: ToolDef[] = [FIND_REFERENCES_TOOL, FIND_DEFINITION_TOOL]
+
+/**
+ * All analysis tools (no confirmation required).
+ */
+export const ANALYSIS_TOOLS: ToolDef[] = [
+    GET_DEPENDENCIES_TOOL,
+    GET_DEPENDENTS_TOOL,
+    GET_COMPLEXITY_TOOL,
+    GET_TODOS_TOOL,
+]
+
+/**
+ * All git tools (git_commit requires confirmation).
+ */
+export const GIT_TOOLS: ToolDef[] = [GIT_STATUS_TOOL, GIT_DIFF_TOOL, GIT_COMMIT_TOOL]
+
+/**
+ * All run tools (run_command may require confirmation).
+ */
+export const RUN_TOOLS: ToolDef[] = [RUN_COMMAND_TOOL, RUN_TESTS_TOOL]
+
+/**
+ * All 18 tool definitions.
+ */
+export const ALL_TOOLS: ToolDef[] = [
+    ...READ_TOOLS,
+    ...EDIT_TOOLS,
+    ...SEARCH_TOOLS,
+    ...ANALYSIS_TOOLS,
+    ...GIT_TOOLS,
+    ...RUN_TOOLS,
+]
+
+/**
+ * Tools that require user confirmation before execution.
+ */
+export const CONFIRMATION_TOOLS = new Set([
+    "edit_lines",
+    "create_file",
+    "delete_file",
+    "git_commit",
+])
+
+/**
+ * Check if a tool requires confirmation.
+ */
+export function requiresConfirmation(toolName: string): boolean {
+    return CONFIRMATION_TOOLS.has(toolName)
+}
+
+/**
+ * Get tool definition by name.
+ */
+export function getToolDef(name: string): ToolDef | undefined {
+    return ALL_TOOLS.find((t) => t.name === name)
+}
+
+/**
+ * Get tool definitions by category.
+ */
+export function getToolsByCategory(category: string): ToolDef[] {
+    switch (category) {
+        case "read":
+            return READ_TOOLS
+        case "edit":
+            return EDIT_TOOLS
+        case "search":
+            return SEARCH_TOOLS
+        case "analysis":
+            return ANALYSIS_TOOLS
+        case "git":
+            return GIT_TOOLS
+        case "run":
+            return RUN_TOOLS
+        default:
+            return []
+    }
+}

packages/ipuaro/src/infrastructure/security/PathValidator.ts

@@ -0,0 +1,293 @@
+import * as path from "node:path"
+import { promises as fs } from "node:fs"
+
+/**
+ * Path validation result classification.
+ */
+export type PathValidationStatus = "valid" | "invalid" | "outside_project"
+
+/**
+ * Result of path validation.
+ */
+export interface PathValidationResult {
+    /** Validation status */
+    status: PathValidationStatus
+    /** Reason for the status */
+    reason: string
+    /** Normalized absolute path (only if valid) */
+    absolutePath?: string
+    /** Normalized relative path (only if valid) */
+    relativePath?: string
+}
+
+/**
+ * Options for path validation.
+ */
+export interface PathValidatorOptions {
+    /** Allow paths that don't exist yet (for create operations) */
+    allowNonExistent?: boolean
+    /** Check if path is a directory */
+    requireDirectory?: boolean
+    /** Check if path is a file */
+    requireFile?: boolean
+    /** Follow symlinks when checking existence */
+    followSymlinks?: boolean
+}
+
+/**
+ * Path validator for ensuring file operations stay within project boundaries.
+ * Prevents path traversal attacks and unauthorized file access.
+ */
+export class PathValidator {
+    private readonly projectRoot: string
+
+    constructor(projectRoot: string) {
+        this.projectRoot = path.resolve(projectRoot)
+    }
+
+    /**
+     * Validate a path and return detailed result.
+     * @param inputPath - Path to validate (relative or absolute)
+     * @param options - Validation options
+     */
+    async validate(
+        inputPath: string,
+        options: PathValidatorOptions = {},
+    ): Promise<PathValidationResult> {
+        if (!inputPath || inputPath.trim() === "") {
+            return {
+                status: "invalid",
+                reason: "Path is empty",
+            }
+        }
+
+        const normalizedInput = inputPath.trim()
+
+        if (this.containsTraversalPatterns(normalizedInput)) {
+            return {
+                status: "invalid",
+                reason: "Path contains traversal patterns",
+            }
+        }
+
+        const absolutePath = path.resolve(this.projectRoot, normalizedInput)
+
+        if (!this.isWithinProject(absolutePath)) {
+            return {
+                status: "outside_project",
+                reason: "Path is outside project root",
+            }
+        }
+
+        const relativePath = path.relative(this.projectRoot, absolutePath)
+
+        if (!options.allowNonExistent) {
+            const existsResult = await this.checkExists(absolutePath, options)
+            if (existsResult) {
+                return existsResult
+            }
+        }
+
+        return {
+            status: "valid",
+            reason: "Path is valid",
+            absolutePath,
+            relativePath,
+        }
+    }
+
+    /**
+     * Synchronous validation for simple checks.
+     * Does not check file existence or type.
+     * @param inputPath - Path to validate (relative or absolute)
+     */
+    validateSync(inputPath: string): PathValidationResult {
+        if (!inputPath || inputPath.trim() === "") {
+            return {
+                status: "invalid",
+                reason: "Path is empty",
+            }
+        }
+
+        const normalizedInput = inputPath.trim()
+
+        if (this.containsTraversalPatterns(normalizedInput)) {
+            return {
+                status: "invalid",
+                reason: "Path contains traversal patterns",
+            }
+        }
+
+        const absolutePath = path.resolve(this.projectRoot, normalizedInput)
+
+        if (!this.isWithinProject(absolutePath)) {
+            return {
+                status: "outside_project",
+                reason: "Path is outside project root",
+            }
+        }
+
+        const relativePath = path.relative(this.projectRoot, absolutePath)
+
+        return {
+            status: "valid",
+            reason: "Path is valid",
+            absolutePath,
+            relativePath,
+        }
+    }
+
+    /**
+     * Quick check if path is within project.
+     * @param inputPath - Path to check (relative or absolute)
+     */
+    isWithin(inputPath: string): boolean {
+        if (!inputPath || inputPath.trim() === "") {
+            return false
+        }
+
+        const normalizedInput = inputPath.trim()
+
+        if (this.containsTraversalPatterns(normalizedInput)) {
+            return false
+        }
+
+        const absolutePath = path.resolve(this.projectRoot, normalizedInput)
+        return this.isWithinProject(absolutePath)
+    }
+
+    /**
+     * Resolve a path relative to project root.
+     * Returns null if path would be outside project.
+     * @param inputPath - Path to resolve
+     */
+    resolve(inputPath: string): string | null {
+        const result = this.validateSync(inputPath)
+        return result.status === "valid" ? (result.absolutePath ?? null) : null
+    }
+
+    /**
+     * Resolve a path or throw an error if invalid.
+     * @param inputPath - Path to resolve
+     * @returns Tuple of [absolutePath, relativePath]
+     * @throws Error if path is invalid
+     */
+    resolveOrThrow(inputPath: string): [absolutePath: string, relativePath: string] {
+        const result = this.validateSync(inputPath)
+        if (result.status !== "valid" || result.absolutePath === undefined) {
+            throw new Error(result.reason)
+        }
+        return [result.absolutePath, result.relativePath ?? ""]
+    }
+
+    /**
+     * Get relative path from project root.
+     * Returns null if path would be outside project.
+     * @param inputPath - Path to make relative
+     */
+    relativize(inputPath: string): string | null {
+        const result = this.validateSync(inputPath)
+        return result.status === "valid" ? (result.relativePath ?? null) : null
+    }
+
+    /**
+     * Get the project root path.
+     */
+    getProjectRoot(): string {
+        return this.projectRoot
+    }
+
+    /**
+     * Check if path contains directory traversal patterns.
+     */
+    private containsTraversalPatterns(inputPath: string): boolean {
+        const normalized = inputPath.replace(/\\/g, "/")
+
+        if (normalized.includes("..")) {
+            return true
+        }
+
+        if (normalized.startsWith("~")) {
+            return true
+        }
+
+        return false
+    }
+
+    /**
+     * Check if absolute path is within project root.
+     */
+    private isWithinProject(absolutePath: string): boolean {
+        const normalizedProject = this.projectRoot.replace(/\\/g, "/")
+        const normalizedPath = absolutePath.replace(/\\/g, "/")
+
+        if (normalizedPath === normalizedProject) {
+            return true
+        }
+
+        const projectWithSep = normalizedProject.endsWith("/")
+            ? normalizedProject
+            : `${normalizedProject}/`
+
+        return normalizedPath.startsWith(projectWithSep)
+    }
+
+    /**
+     * Check file existence and type.
+     */
+    private async checkExists(
+        absolutePath: string,
+        options: PathValidatorOptions,
+    ): Promise<PathValidationResult | null> {
+        try {
+            const statFn = options.followSymlinks ? fs.stat : fs.lstat
+            const stats = await statFn(absolutePath)
+
+            if (options.requireDirectory && !stats.isDirectory()) {
+                return {
+                    status: "invalid",
+                    reason: "Path is not a directory",
+                }
+            }
+
+            if (options.requireFile && !stats.isFile()) {
+                return {
+                    status: "invalid",
+                    reason: "Path is not a file",
+                }
+            }
+
+            return null
+        } catch (error) {
+            if ((error as NodeJS.ErrnoException).code === "ENOENT") {
+                return {
+                    status: "invalid",
+                    reason: "Path does not exist",
+                }
+            }
+
+            return {
+                status: "invalid",
+                reason: `Cannot access path: ${(error as Error).message}`,
+            }
+        }
+    }
+}
+
+/**
+ * Create a path validator for a project.
+ * @param projectRoot - Root directory of the project
+ */
+export function createPathValidator(projectRoot: string): PathValidator {
+    return new PathValidator(projectRoot)
+}
+
+/**
+ * Standalone function for quick path validation.
+ * @param inputPath - Path to validate
+ * @param projectRoot - Project root directory
+ */
+export function validatePath(inputPath: string, projectRoot: string): boolean {
+    const validator = new PathValidator(projectRoot)
+    return validator.isWithin(inputPath)
+}

packages/ipuaro/src/infrastructure/security/index.ts

@@ -0,0 +1,9 @@
+// Security module exports
+export {
+    PathValidator,
+    createPathValidator,
+    validatePath,
+    type PathValidationResult,
+    type PathValidationStatus,
+    type PathValidatorOptions,
+} from "./PathValidator.js"

packages/ipuaro/src/infrastructure/storage/RedisSessionStorage.ts

@@ -0,0 +1,225 @@
+import type { ISessionStorage, SessionListItem } from "../../domain/services/ISessionStorage.js"
+import { type ContextState, Session, type SessionStats } from "../../domain/entities/Session.js"
+import type { ChatMessage } from "../../domain/value-objects/ChatMessage.js"
+import type { UndoEntry } from "../../domain/value-objects/UndoEntry.js"
+import { MAX_UNDO_STACK_SIZE } from "../../domain/constants/index.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+import { RedisClient } from "./RedisClient.js"
+import { SessionFields, SessionKeys } from "./schema.js"
+
+/**
+ * Redis implementation of ISessionStorage.
+ * Stores session data in Redis hashes and lists.
+ */
+export class RedisSessionStorage implements ISessionStorage {
+    private readonly client: RedisClient
+
+    constructor(client: RedisClient) {
+        this.client = client
+    }
+
+    async saveSession(session: Session): Promise<void> {
+        const redis = this.getRedis()
+        const dataKey = SessionKeys.data(session.id)
+
+        const pipeline = redis.pipeline()
+
+        pipeline.hset(dataKey, SessionFields.projectName, session.projectName)
+        pipeline.hset(dataKey, SessionFields.createdAt, String(session.createdAt))
+        pipeline.hset(dataKey, SessionFields.lastActivityAt, String(session.lastActivityAt))
+        pipeline.hset(dataKey, SessionFields.history, JSON.stringify(session.history))
+        pipeline.hset(dataKey, SessionFields.context, JSON.stringify(session.context))
+        pipeline.hset(dataKey, SessionFields.stats, JSON.stringify(session.stats))
+        pipeline.hset(dataKey, SessionFields.inputHistory, JSON.stringify(session.inputHistory))
+
+        await this.addToSessionsList(session.id)
+
+        await pipeline.exec()
+    }
+
+    async loadSession(sessionId: string): Promise<Session | null> {
+        const redis = this.getRedis()
+        const dataKey = SessionKeys.data(sessionId)
+
+        const data = await redis.hgetall(dataKey)
+        if (!data || Object.keys(data).length === 0) {
+            return null
+        }
+
+        const session = new Session(
+            sessionId,
+            data[SessionFields.projectName],
+            Number(data[SessionFields.createdAt]),
+        )
+
+        session.lastActivityAt = Number(data[SessionFields.lastActivityAt])
+        session.history = this.parseJSON(data[SessionFields.history], "history") as ChatMessage[]
+        session.context = this.parseJSON(data[SessionFields.context], "context") as ContextState
+        session.stats = this.parseJSON(data[SessionFields.stats], "stats") as SessionStats
+        session.inputHistory = this.parseJSON(
+            data[SessionFields.inputHistory],
+            "inputHistory",
+        ) as string[]
+
+        const undoStack = await this.getUndoStack(sessionId)
+        for (const entry of undoStack) {
+            session.undoStack.push(entry)
+        }
+
+        return session
+    }
+
+    async deleteSession(sessionId: string): Promise<void> {
+        const redis = this.getRedis()
+
+        await Promise.all([
+            redis.del(SessionKeys.data(sessionId)),
+            redis.del(SessionKeys.undo(sessionId)),
+            redis.lrem(SessionKeys.list, 0, sessionId),
+        ])
+    }
+
+    async listSessions(projectName?: string): Promise<SessionListItem[]> {
+        const redis = this.getRedis()
+        const sessionIds = await redis.lrange(SessionKeys.list, 0, -1)
+
+        const sessions: SessionListItem[] = []
+
+        for (const id of sessionIds) {
+            const data = await redis.hgetall(SessionKeys.data(id))
+            if (!data || Object.keys(data).length === 0) {
+                continue
+            }
+
+            const sessionProjectName = data[SessionFields.projectName]
+            if (projectName && sessionProjectName !== projectName) {
+                continue
+            }
+
+            const history = this.parseJSON(data[SessionFields.history], "history") as ChatMessage[]
+
+            sessions.push({
+                id,
+                projectName: sessionProjectName,
+                createdAt: Number(data[SessionFields.createdAt]),
+                lastActivityAt: Number(data[SessionFields.lastActivityAt]),
+                messageCount: history.length,
+            })
+        }
+
+        sessions.sort((a, b) => b.lastActivityAt - a.lastActivityAt)
+
+        return sessions
+    }
+
+    async getLatestSession(projectName: string): Promise<Session | null> {
+        const sessions = await this.listSessions(projectName)
+        if (sessions.length === 0) {
+            return null
+        }
+
+        return this.loadSession(sessions[0].id)
+    }
+
+    async sessionExists(sessionId: string): Promise<boolean> {
+        const redis = this.getRedis()
+        const exists = await redis.exists(SessionKeys.data(sessionId))
+        return exists === 1
+    }
+
+    async pushUndoEntry(sessionId: string, entry: UndoEntry): Promise<void> {
+        const redis = this.getRedis()
+        const undoKey = SessionKeys.undo(sessionId)
+
+        await redis.rpush(undoKey, JSON.stringify(entry))
+
+        const length = await redis.llen(undoKey)
+        if (length > MAX_UNDO_STACK_SIZE) {
+            await redis.lpop(undoKey)
+        }
+    }
+
+    async popUndoEntry(sessionId: string): Promise<UndoEntry | null> {
+        const redis = this.getRedis()
+        const undoKey = SessionKeys.undo(sessionId)
+
+        const data = await redis.rpop(undoKey)
+        if (!data) {
+            return null
+        }
+
+        return this.parseJSON(data, "UndoEntry") as UndoEntry
+    }
+
+    async getUndoStack(sessionId: string): Promise<UndoEntry[]> {
+        const redis = this.getRedis()
+        const undoKey = SessionKeys.undo(sessionId)
+
+        const entries = await redis.lrange(undoKey, 0, -1)
+        return entries.map((entry) => this.parseJSON(entry, "UndoEntry") as UndoEntry)
+    }
+
+    async touchSession(sessionId: string): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hset(
+            SessionKeys.data(sessionId),
+            SessionFields.lastActivityAt,
+            String(Date.now()),
+        )
+    }
+
+    async clearAllSessions(): Promise<void> {
+        const redis = this.getRedis()
+        const sessionIds = await redis.lrange(SessionKeys.list, 0, -1)
+
+        const pipeline = redis.pipeline()
+        for (const id of sessionIds) {
+            pipeline.del(SessionKeys.data(id))
+            pipeline.del(SessionKeys.undo(id))
+        }
+        pipeline.del(SessionKeys.list)
+
+        await pipeline.exec()
+    }
+
+    private async addToSessionsList(sessionId: string): Promise<void> {
+        const redis = this.getRedis()
+
+        const exists = await redis.lpos(SessionKeys.list, sessionId)
+        if (exists === null) {
+            await redis.lpush(SessionKeys.list, sessionId)
+        }
+    }
+
+    private getRedis(): ReturnType<RedisClient["getClient"]> {
+        return this.client.getClient()
+    }
+
+    private parseJSON(data: string | undefined, type: string): unknown {
+        if (!data) {
+            if (type === "history" || type === "inputHistory") {
+                return []
+            }
+            if (type === "context") {
+                return { filesInContext: [], tokenUsage: 0, needsCompression: false }
+            }
+            if (type === "stats") {
+                return {
+                    totalTokens: 0,
+                    totalTimeMs: 0,
+                    toolCalls: 0,
+                    editsApplied: 0,
+                    editsRejected: 0,
+                }
+            }
+            return null
+        }
+
+        try {
+            return JSON.parse(data) as unknown
+        } catch (error) {
+            const message = error instanceof Error ? error.message : "Unknown error"
+            throw IpuaroError.parse(`Failed to parse ${type}: ${message}`)
+        }
+    }
+}

packages/ipuaro/src/infrastructure/storage/RedisStorage.ts

@@ -25,7 +25,7 @@ export class RedisStorage implements IStorage {
         if (!data) {
             return null
         }
-        return this.parseJSON<FileData>(data, "FileData")
+        return this.parseJSON(data, "FileData") as FileData
     }
 
     async setFile(path: string, data: FileData): Promise<void> {
@@ -44,7 +44,7 @@ export class RedisStorage implements IStorage {
         const result = new Map<string, FileData>()
 
         for (const [path, value] of Object.entries(data)) {
-            const parsed = this.parseJSON<FileData>(value, "FileData")
+            const parsed = this.parseJSON(value, "FileData") as FileData | null
             if (parsed) {
                 result.set(path, parsed)
             }
@@ -64,7 +64,7 @@ export class RedisStorage implements IStorage {
         if (!data) {
             return null
         }
-        return this.parseJSON<FileAST>(data, "FileAST")
+        return this.parseJSON(data, "FileAST") as FileAST
     }
 
     async setAST(path: string, ast: FileAST): Promise<void> {
@@ -83,7 +83,7 @@ export class RedisStorage implements IStorage {
         const result = new Map<string, FileAST>()
 
         for (const [path, value] of Object.entries(data)) {
-            const parsed = this.parseJSON<FileAST>(value, "FileAST")
+            const parsed = this.parseJSON(value, "FileAST") as FileAST | null
             if (parsed) {
                 result.set(path, parsed)
             }
@@ -98,7 +98,7 @@ export class RedisStorage implements IStorage {
         if (!data) {
             return null
         }
-        return this.parseJSON<FileMeta>(data, "FileMeta")
+        return this.parseJSON(data, "FileMeta") as FileMeta
     }
 
     async setMeta(path: string, meta: FileMeta): Promise<void> {
@@ -117,7 +117,7 @@ export class RedisStorage implements IStorage {
         const result = new Map<string, FileMeta>()
 
         for (const [path, value] of Object.entries(data)) {
-            const parsed = this.parseJSON<FileMeta>(value, "FileMeta")
+            const parsed = this.parseJSON(value, "FileMeta") as FileMeta | null
             if (parsed) {
                 result.set(path, parsed)
             }
@@ -133,7 +133,7 @@ export class RedisStorage implements IStorage {
             return new Map()
         }
 
-        const parsed = this.parseJSON<[string, unknown[]][]>(data, "SymbolIndex")
+        const parsed = this.parseJSON(data, "SymbolIndex") as [string, unknown[]][] | null
         if (!parsed) {
             return new Map()
         }
@@ -157,10 +157,10 @@ export class RedisStorage implements IStorage {
             }
         }
 
-        const parsed = this.parseJSON<{
+        const parsed = this.parseJSON(data, "DepsGraph") as {
             imports: [string, string[]][]
             importedBy: [string, string[]][]
-        }>(data, "DepsGraph")
+        } | null
 
         if (!parsed) {
             return {
@@ -190,7 +190,7 @@ export class RedisStorage implements IStorage {
         if (!data) {
             return null
         }
-        return this.parseJSON<unknown>(data, "ProjectConfig")
+        return this.parseJSON(data, "ProjectConfig")
     }
 
     async setProjectConfig(key: string, value: unknown): Promise<void> {
@@ -225,9 +225,9 @@ export class RedisStorage implements IStorage {
         return this.client.getClient()
     }
 
-    private parseJSON<T>(data: string, type: string): T | null {
+    private parseJSON(data: string, type: string): unknown {
         try {
-            return JSON.parse(data) as T
+            return JSON.parse(data) as unknown
         } catch (error) {
             const message = error instanceof Error ? error.message : "Unknown error"
             throw IpuaroError.parse(`Failed to parse ${type}: ${message}`)

packages/ipuaro/src/infrastructure/storage/index.ts

@@ -1,6 +1,7 @@
 // Storage module exports
 export { RedisClient } from "./RedisClient.js"
 export { RedisStorage } from "./RedisStorage.js"
+export { RedisSessionStorage } from "./RedisSessionStorage.js"
 export {
     ProjectKeys,
     SessionKeys,

packages/ipuaro/src/infrastructure/tools/analysis/GetComplexityTool.ts

@@ -0,0 +1,232 @@
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import type { ComplexityMetrics, FileMeta } from "../../../domain/value-objects/FileMeta.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * Complexity entry for a single file.
+ */
+export interface ComplexityEntry {
+    /** Relative path to the file */
+    path: string
+    /** Complexity metrics */
+    metrics: ComplexityMetrics
+    /** File type classification */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+    /** Whether the file is a hub */
+    isHub: boolean
+}
+
+/**
+ * Result data from get_complexity tool.
+ */
+export interface GetComplexityResult {
+    /** The path that was analyzed (file or directory) */
+    analyzedPath: string | null
+    /** Total files analyzed */
+    totalFiles: number
+    /** Average complexity score */
+    averageScore: number
+    /** Files sorted by complexity score (descending) */
+    files: ComplexityEntry[]
+    /** Summary statistics */
+    summary: {
+        highComplexity: number
+        mediumComplexity: number
+        lowComplexity: number
+    }
+}
+
+/**
+ * Complexity thresholds for classification.
+ */
+const COMPLEXITY_THRESHOLDS = {
+    high: 60,
+    medium: 30,
+}
+
+/**
+ * Tool for getting complexity metrics for files.
+ * Can analyze a single file or all files in the project.
+ */
+export class GetComplexityTool implements ITool {
+    readonly name = "get_complexity"
+    readonly description =
+        "Get complexity metrics for files. " +
+        "Returns LOC, nesting depth, cyclomatic complexity, and overall score. " +
+        "Without path, returns all files sorted by complexity."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File or directory path to analyze (optional, defaults to entire project)",
+            required: false,
+        },
+        {
+            name: "limit",
+            type: "number",
+            description: "Maximum number of files to return (default: 20)",
+            required: false,
+            default: 20,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "analysis" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.path !== undefined && typeof params.path !== "string") {
+            return "Parameter 'path' must be a string"
+        }
+        if (params.limit !== undefined) {
+            if (typeof params.limit !== "number" || !Number.isInteger(params.limit)) {
+                return "Parameter 'limit' must be an integer"
+            }
+            if (params.limit < 1) {
+                return "Parameter 'limit' must be at least 1"
+            }
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string | undefined
+        const limit = (params.limit as number | undefined) ?? 20
+
+        try {
+            const allMetas = await ctx.storage.getAllMetas()
+
+            if (allMetas.size === 0) {
+                return createSuccessResult(
+                    callId,
+                    {
+                        analyzedPath: inputPath ?? null,
+                        totalFiles: 0,
+                        averageScore: 0,
+                        files: [],
+                        summary: { highComplexity: 0, mediumComplexity: 0, lowComplexity: 0 },
+                    } satisfies GetComplexityResult,
+                    Date.now() - startTime,
+                )
+            }
+
+            let filteredMetas = allMetas
+            let analyzedPath: string | null = null
+
+            if (inputPath) {
+                const relativePath = this.normalizePathToRelative(inputPath, ctx.projectRoot)
+                analyzedPath = relativePath
+                filteredMetas = this.filterByPath(allMetas, relativePath)
+
+                if (filteredMetas.size === 0) {
+                    return createErrorResult(
+                        callId,
+                        `No files found at path: ${relativePath}`,
+                        Date.now() - startTime,
+                    )
+                }
+            }
+
+            const entries: ComplexityEntry[] = []
+            for (const [filePath, meta] of filteredMetas) {
+                entries.push({
+                    path: filePath,
+                    metrics: meta.complexity,
+                    fileType: meta.fileType,
+                    isHub: meta.isHub,
+                })
+            }
+
+            entries.sort((a, b) => b.metrics.score - a.metrics.score)
+
+            const summary = this.calculateSummary(entries)
+            const averageScore = this.calculateAverageScore(entries)
+
+            const limitedEntries = entries.slice(0, limit)
+
+            const result: GetComplexityResult = {
+                analyzedPath,
+                totalFiles: entries.length,
+                averageScore,
+                files: limitedEntries,
+                summary,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Normalize input path to relative path from project root.
+     */
+    private normalizePathToRelative(inputPath: string, projectRoot: string): string {
+        if (path.isAbsolute(inputPath)) {
+            return path.relative(projectRoot, inputPath)
+        }
+        return inputPath
+    }
+
+    /**
+     * Filter metas by path prefix (file or directory).
+     */
+    private filterByPath(
+        allMetas: Map<string, FileMeta>,
+        targetPath: string,
+    ): Map<string, FileMeta> {
+        const filtered = new Map<string, FileMeta>()
+
+        for (const [filePath, meta] of allMetas) {
+            if (filePath === targetPath || filePath.startsWith(`${targetPath}/`)) {
+                filtered.set(filePath, meta)
+            }
+        }
+
+        return filtered
+    }
+
+    /**
+     * Calculate summary statistics for complexity entries.
+     */
+    private calculateSummary(entries: ComplexityEntry[]): {
+        highComplexity: number
+        mediumComplexity: number
+        lowComplexity: number
+    } {
+        let high = 0
+        let medium = 0
+        let low = 0
+
+        for (const entry of entries) {
+            const score = entry.metrics.score
+            if (score >= COMPLEXITY_THRESHOLDS.high) {
+                high++
+            } else if (score >= COMPLEXITY_THRESHOLDS.medium) {
+                medium++
+            } else {
+                low++
+            }
+        }
+
+        return { highComplexity: high, mediumComplexity: medium, lowComplexity: low }
+    }
+
+    /**
+     * Calculate average complexity score.
+     */
+    private calculateAverageScore(entries: ComplexityEntry[]): number {
+        if (entries.length === 0) {
+            return 0
+        }
+        const total = entries.reduce((sum, entry) => sum + entry.metrics.score, 0)
+        return Math.round((total / entries.length) * 100) / 100
+    }
+}

packages/ipuaro/src/infrastructure/tools/analysis/GetDependenciesTool.ts

@@ -0,0 +1,121 @@
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * Single dependency entry with metadata.
+ */
+export interface DependencyEntry {
+    /** Relative path to the dependency */
+    path: string
+    /** Whether the file exists in the project */
+    exists: boolean
+    /** Whether it's an entry point */
+    isEntryPoint: boolean
+    /** Whether it's a hub file */
+    isHub: boolean
+    /** File type classification */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+}
+
+/**
+ * Result data from get_dependencies tool.
+ */
+export interface GetDependenciesResult {
+    /** The file being analyzed */
+    file: string
+    /** Total number of dependencies */
+    totalDependencies: number
+    /** List of dependencies with metadata */
+    dependencies: DependencyEntry[]
+    /** File type of the source file */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+}
+
+/**
+ * Tool for getting files that a specific file imports.
+ * Returns the list of internal dependencies from FileMeta.
+ */
+export class GetDependenciesTool implements ITool {
+    readonly name = "get_dependencies"
+    readonly description =
+        "Get files that a specific file imports. " +
+        "Returns internal dependencies resolved to file paths."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path to analyze (relative to project root or absolute)",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "analysis" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = (params.path as string).trim()
+
+        try {
+            const relativePath = this.normalizePathToRelative(inputPath, ctx.projectRoot)
+
+            const meta = await ctx.storage.getMeta(relativePath)
+            if (!meta) {
+                return createErrorResult(
+                    callId,
+                    `File not found or not indexed: ${relativePath}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const dependencies: DependencyEntry[] = []
+            for (const depPath of meta.dependencies) {
+                const depMeta = await ctx.storage.getMeta(depPath)
+                dependencies.push({
+                    path: depPath,
+                    exists: depMeta !== null,
+                    isEntryPoint: depMeta?.isEntryPoint ?? false,
+                    isHub: depMeta?.isHub ?? false,
+                    fileType: depMeta?.fileType ?? "unknown",
+                })
+            }
+
+            dependencies.sort((a, b) => a.path.localeCompare(b.path))
+
+            const result: GetDependenciesResult = {
+                file: relativePath,
+                totalDependencies: dependencies.length,
+                dependencies,
+                fileType: meta.fileType,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Normalize input path to relative path from project root.
+     */
+    private normalizePathToRelative(inputPath: string, projectRoot: string): string {
+        if (path.isAbsolute(inputPath)) {
+            return path.relative(projectRoot, inputPath)
+        }
+        return inputPath
+    }
+}

packages/ipuaro/src/infrastructure/tools/analysis/GetDependentsTool.ts

@@ -0,0 +1,124 @@
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * Single dependent entry with metadata.
+ */
+export interface DependentEntry {
+    /** Relative path to the dependent file */
+    path: string
+    /** Whether the file is an entry point */
+    isEntryPoint: boolean
+    /** Whether the file is a hub */
+    isHub: boolean
+    /** File type classification */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+    /** Complexity score of the dependent */
+    complexityScore: number
+}
+
+/**
+ * Result data from get_dependents tool.
+ */
+export interface GetDependentsResult {
+    /** The file being analyzed */
+    file: string
+    /** Total number of dependents */
+    totalDependents: number
+    /** Whether this file is a hub (>5 dependents) */
+    isHub: boolean
+    /** List of files that import this file */
+    dependents: DependentEntry[]
+    /** File type of the source file */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+}
+
+/**
+ * Tool for getting files that import a specific file.
+ * Returns the list of files that depend on the target file.
+ */
+export class GetDependentsTool implements ITool {
+    readonly name = "get_dependents"
+    readonly description =
+        "Get files that import a specific file. " +
+        "Returns list of files that depend on the target."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path to analyze (relative to project root or absolute)",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "analysis" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = (params.path as string).trim()
+
+        try {
+            const relativePath = this.normalizePathToRelative(inputPath, ctx.projectRoot)
+
+            const meta = await ctx.storage.getMeta(relativePath)
+            if (!meta) {
+                return createErrorResult(
+                    callId,
+                    `File not found or not indexed: ${relativePath}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const dependents: DependentEntry[] = []
+            for (const depPath of meta.dependents) {
+                const depMeta = await ctx.storage.getMeta(depPath)
+                dependents.push({
+                    path: depPath,
+                    isEntryPoint: depMeta?.isEntryPoint ?? false,
+                    isHub: depMeta?.isHub ?? false,
+                    fileType: depMeta?.fileType ?? "unknown",
+                    complexityScore: depMeta?.complexity.score ?? 0,
+                })
+            }
+
+            dependents.sort((a, b) => a.path.localeCompare(b.path))
+
+            const result: GetDependentsResult = {
+                file: relativePath,
+                totalDependents: dependents.length,
+                isHub: meta.isHub,
+                dependents,
+                fileType: meta.fileType,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Normalize input path to relative path from project root.
+     */
+    private normalizePathToRelative(inputPath: string, projectRoot: string): string {
+        if (path.isAbsolute(inputPath)) {
+            return path.relative(projectRoot, inputPath)
+        }
+        return inputPath
+    }
+}

packages/ipuaro/src/infrastructure/tools/analysis/GetTodosTool.ts

@@ -0,0 +1,276 @@
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import type { FileData } from "../../../domain/value-objects/FileData.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * Types of TODO markers to search for.
+ */
+export type TodoType = "TODO" | "FIXME" | "HACK" | "XXX" | "BUG" | "NOTE"
+
+/**
+ * A single TODO entry found in the codebase.
+ */
+export interface TodoEntry {
+    /** Relative path to the file */
+    path: string
+    /** Line number where the TODO is found */
+    line: number
+    /** Type of TODO marker (TODO, FIXME, etc.) */
+    type: TodoType
+    /** The TODO text content */
+    text: string
+    /** Full line content for context */
+    context: string
+}
+
+/**
+ * Result data from get_todos tool.
+ */
+export interface GetTodosResult {
+    /** The path that was searched (file or directory) */
+    searchedPath: string | null
+    /** Total number of TODOs found */
+    totalTodos: number
+    /** Number of files with TODOs */
+    filesWithTodos: number
+    /** TODOs grouped by type */
+    byType: Record<TodoType, number>
+    /** List of TODO entries */
+    todos: TodoEntry[]
+}
+
+/**
+ * Supported TODO marker patterns.
+ */
+const TODO_MARKERS: TodoType[] = ["TODO", "FIXME", "HACK", "XXX", "BUG", "NOTE"]
+
+/**
+ * Regex pattern for matching TODO markers in comments.
+ */
+const TODO_PATTERN = new RegExp(
+    `(?://|/\\*|\\*|#)\\s*(${TODO_MARKERS.join("|")})(?:\\([^)]*\\))?:?\\s*(.*)`,
+    "i",
+)
+
+/**
+ * Tool for finding TODO/FIXME/HACK comments in the codebase.
+ * Searches through indexed files for common task markers.
+ */
+export class GetTodosTool implements ITool {
+    readonly name = "get_todos"
+    readonly description =
+        "Find TODO, FIXME, HACK, XXX, BUG, and NOTE comments in the codebase. " +
+        "Returns list of locations with context."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File or directory to search (optional, defaults to entire project)",
+            required: false,
+        },
+        {
+            name: "type",
+            type: "string",
+            description:
+                "Filter by TODO type: TODO, FIXME, HACK, XXX, BUG, NOTE (optional, defaults to all)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "analysis" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.path !== undefined && typeof params.path !== "string") {
+            return "Parameter 'path' must be a string"
+        }
+        if (params.type !== undefined) {
+            if (typeof params.type !== "string") {
+                return "Parameter 'type' must be a string"
+            }
+            const upperType = params.type.toUpperCase()
+            if (!TODO_MARKERS.includes(upperType as TodoType)) {
+                return `Parameter 'type' must be one of: ${TODO_MARKERS.join(", ")}`
+            }
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string | undefined
+        const filterType = params.type ? ((params.type as string).toUpperCase() as TodoType) : null
+
+        try {
+            const allFiles = await ctx.storage.getAllFiles()
+
+            if (allFiles.size === 0) {
+                return createSuccessResult(
+                    callId,
+                    this.createEmptyResult(inputPath ?? null),
+                    Date.now() - startTime,
+                )
+            }
+
+            let filesToSearch = allFiles
+            let searchedPath: string | null = null
+
+            if (inputPath) {
+                const relativePath = this.normalizePathToRelative(inputPath, ctx.projectRoot)
+                searchedPath = relativePath
+                filesToSearch = this.filterByPath(allFiles, relativePath)
+
+                if (filesToSearch.size === 0) {
+                    return createErrorResult(
+                        callId,
+                        `No files found at path: ${relativePath}`,
+                        Date.now() - startTime,
+                    )
+                }
+            }
+
+            const todos: TodoEntry[] = []
+            const filesWithTodos = new Set<string>()
+
+            for (const [filePath, fileData] of filesToSearch) {
+                const fileTodos = this.findTodosInFile(filePath, fileData.lines, filterType)
+                if (fileTodos.length > 0) {
+                    filesWithTodos.add(filePath)
+                    todos.push(...fileTodos)
+                }
+            }
+
+            todos.sort((a, b) => {
+                const pathCompare = a.path.localeCompare(b.path)
+                if (pathCompare !== 0) {
+                    return pathCompare
+                }
+                return a.line - b.line
+            })
+
+            const byType = this.countByType(todos)
+
+            const result: GetTodosResult = {
+                searchedPath,
+                totalTodos: todos.length,
+                filesWithTodos: filesWithTodos.size,
+                byType,
+                todos,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Normalize input path to relative path from project root.
+     */
+    private normalizePathToRelative(inputPath: string, projectRoot: string): string {
+        if (path.isAbsolute(inputPath)) {
+            return path.relative(projectRoot, inputPath)
+        }
+        return inputPath
+    }
+
+    /**
+     * Filter files by path prefix.
+     */
+    private filterByPath(
+        allFiles: Map<string, FileData>,
+        targetPath: string,
+    ): Map<string, FileData> {
+        const filtered = new Map<string, FileData>()
+
+        for (const [filePath, fileData] of allFiles) {
+            if (filePath === targetPath || filePath.startsWith(`${targetPath}/`)) {
+                filtered.set(filePath, fileData)
+            }
+        }
+
+        return filtered
+    }
+
+    /**
+     * Find all TODOs in a file.
+     */
+    private findTodosInFile(
+        filePath: string,
+        lines: string[],
+        filterType: TodoType | null,
+    ): TodoEntry[] {
+        const todos: TodoEntry[] = []
+
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i]
+            const match = TODO_PATTERN.exec(line)
+
+            if (match) {
+                const type = match[1].toUpperCase() as TodoType
+                const text = match[2].trim()
+
+                if (filterType && type !== filterType) {
+                    continue
+                }
+
+                todos.push({
+                    path: filePath,
+                    line: i + 1,
+                    type,
+                    text: text || "(no description)",
+                    context: line.trim(),
+                })
+            }
+        }
+
+        return todos
+    }
+
+    /**
+     * Count TODOs by type.
+     */
+    private countByType(todos: TodoEntry[]): Record<TodoType, number> {
+        const counts: Record<TodoType, number> = {
+            TODO: 0,
+            FIXME: 0,
+            HACK: 0,
+            XXX: 0,
+            BUG: 0,
+            NOTE: 0,
+        }
+
+        for (const todo of todos) {
+            counts[todo.type]++
+        }
+
+        return counts
+    }
+
+    /**
+     * Create empty result structure.
+     */
+    private createEmptyResult(searchedPath: string | null): GetTodosResult {
+        return {
+            searchedPath,
+            totalTodos: 0,
+            filesWithTodos: 0,
+            byType: {
+                TODO: 0,
+                FIXME: 0,
+                HACK: 0,
+                XXX: 0,
+                BUG: 0,
+                NOTE: 0,
+            },
+            todos: [],
+        }
+    }
+}

packages/ipuaro/src/infrastructure/tools/analysis/index.ts

@@ -0,0 +1,20 @@
+// Analysis tools module exports
+export {
+    GetDependenciesTool,
+    type GetDependenciesResult,
+    type DependencyEntry,
+} from "./GetDependenciesTool.js"
+
+export {
+    GetDependentsTool,
+    type GetDependentsResult,
+    type DependentEntry,
+} from "./GetDependentsTool.js"
+
+export {
+    GetComplexityTool,
+    type GetComplexityResult,
+    type ComplexityEntry,
+} from "./GetComplexityTool.js"
+
+export { GetTodosTool, type GetTodosResult, type TodoEntry, type TodoType } from "./GetTodosTool.js"

packages/ipuaro/src/infrastructure/tools/edit/CreateFileTool.ts

@@ -0,0 +1,142 @@
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import { createFileData } from "../../../domain/value-objects/FileData.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { hashLines } from "../../../shared/utils/hash.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from create_file tool.
+ */
+export interface CreateFileResult {
+    path: string
+    lines: number
+    size: number
+}
+
+/**
+ * Tool for creating new files.
+ * Creates a new file with the specified content.
+ * Requires user confirmation before creating.
+ */
+export class CreateFileTool implements ITool {
+    readonly name = "create_file"
+    readonly description =
+        "Create a new file with the specified content. " +
+        "The file path must be within the project root. " +
+        "Requires confirmation before creating."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "content",
+            type: "string",
+            description: "File content",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = true
+    readonly category = "edit" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        if (typeof params.content !== "string") {
+            return "Parameter 'content' is required and must be a string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const content = params.content as string
+
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const exists = await this.fileExists(absolutePath)
+            if (exists) {
+                return createErrorResult(
+                    callId,
+                    `File already exists: ${relativePath}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const lines = content.split("\n")
+
+            const confirmed = await ctx.requestConfirmation(
+                `Create new file: ${relativePath} (${String(lines.length)} lines)`,
+                {
+                    filePath: relativePath,
+                    oldLines: [],
+                    newLines: lines,
+                    startLine: 1,
+                },
+            )
+
+            if (!confirmed) {
+                return createErrorResult(
+                    callId,
+                    "File creation cancelled by user",
+                    Date.now() - startTime,
+                )
+            }
+
+            const dirPath = path.dirname(absolutePath)
+            await fs.mkdir(dirPath, { recursive: true })
+            await fs.writeFile(absolutePath, content, "utf-8")
+
+            const stats = await fs.stat(absolutePath)
+            const fileData = createFileData(lines, hashLines(lines), stats.size, stats.mtimeMs)
+            await ctx.storage.setFile(relativePath, fileData)
+
+            const result: CreateFileResult = {
+                path: relativePath,
+                lines: lines.length,
+                size: stats.size,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Check if file exists.
+     */
+    private async fileExists(filePath: string): Promise<boolean> {
+        try {
+            await fs.access(filePath)
+            return true
+        } catch {
+            return false
+        }
+    }
+}

packages/ipuaro/src/infrastructure/tools/edit/DeleteFileTool.ts

@@ -0,0 +1,137 @@
+import { promises as fs } from "node:fs"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from delete_file tool.
+ */
+export interface DeleteFileResult {
+    path: string
+    deleted: boolean
+}
+
+/**
+ * Tool for deleting files.
+ * Deletes a file from the filesystem and storage.
+ * Requires user confirmation before deleting.
+ */
+export class DeleteFileTool implements ITool {
+    readonly name = "delete_file"
+    readonly description =
+        "Delete a file from the project. " +
+        "The file path must be within the project root. " +
+        "Requires confirmation before deleting."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = true
+    readonly category = "edit" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const exists = await this.fileExists(absolutePath)
+            if (!exists) {
+                return createErrorResult(
+                    callId,
+                    `File not found: ${relativePath}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const fileContent = await this.getFileContent(absolutePath, relativePath, ctx)
+
+            const confirmed = await ctx.requestConfirmation(`Delete file: ${relativePath}`, {
+                filePath: relativePath,
+                oldLines: fileContent,
+                newLines: [],
+                startLine: 1,
+            })
+
+            if (!confirmed) {
+                return createErrorResult(
+                    callId,
+                    "File deletion cancelled by user",
+                    Date.now() - startTime,
+                )
+            }
+
+            await fs.unlink(absolutePath)
+
+            await ctx.storage.deleteFile(relativePath)
+            await ctx.storage.deleteAST(relativePath)
+            await ctx.storage.deleteMeta(relativePath)
+
+            const result: DeleteFileResult = {
+                path: relativePath,
+                deleted: true,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Check if file exists.
+     */
+    private async fileExists(filePath: string): Promise<boolean> {
+        try {
+            const stats = await fs.stat(filePath)
+            return stats.isFile()
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Get file content for diff display.
+     */
+    private async getFileContent(
+        absolutePath: string,
+        relativePath: string,
+        ctx: ToolContext,
+    ): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const content = await fs.readFile(absolutePath, "utf-8")
+        return content.split("\n")
+    }
+}

packages/ipuaro/src/infrastructure/tools/edit/EditLinesTool.ts

@@ -0,0 +1,227 @@
+import { promises as fs } from "node:fs"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import { createFileData } from "../../../domain/value-objects/FileData.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { hashLines } from "../../../shared/utils/hash.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from edit_lines tool.
+ */
+export interface EditLinesResult {
+    path: string
+    startLine: number
+    endLine: number
+    linesReplaced: number
+    linesInserted: number
+    totalLines: number
+}
+
+/**
+ * Tool for editing specific lines in a file.
+ * Replaces lines from start to end with new content.
+ * Requires user confirmation before applying changes.
+ */
+export class EditLinesTool implements ITool {
+    readonly name = "edit_lines"
+    readonly description =
+        "Replace lines in a file. Replaces lines from start to end (inclusive) with new content. " +
+        "Requires confirmation before applying changes."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "start",
+            type: "number",
+            description: "Start line number (1-based, inclusive)",
+            required: true,
+        },
+        {
+            name: "end",
+            type: "number",
+            description: "End line number (1-based, inclusive)",
+            required: true,
+        },
+        {
+            name: "content",
+            type: "string",
+            description: "New content to insert (can be multi-line)",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = true
+    readonly category = "edit" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        if (typeof params.start !== "number" || !Number.isInteger(params.start)) {
+            return "Parameter 'start' is required and must be an integer"
+        }
+        if (params.start < 1) {
+            return "Parameter 'start' must be >= 1"
+        }
+
+        if (typeof params.end !== "number" || !Number.isInteger(params.end)) {
+            return "Parameter 'end' is required and must be an integer"
+        }
+        if (params.end < 1) {
+            return "Parameter 'end' must be >= 1"
+        }
+
+        if (params.start > params.end) {
+            return "Parameter 'start' must be <= 'end'"
+        }
+
+        if (typeof params.content !== "string") {
+            return "Parameter 'content' is required and must be a string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const startLine = params.start as number
+        const endLine = params.end as number
+        const newContent = params.content as string
+
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const currentLines = await this.getCurrentLines(absolutePath, relativePath, ctx)
+            const totalLines = currentLines.length
+
+            if (startLine > totalLines) {
+                return createErrorResult(
+                    callId,
+                    `Start line ${String(startLine)} exceeds file length (${String(totalLines)} lines)`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const adjustedEnd = Math.min(endLine, totalLines)
+            const conflictCheck = await this.checkHashConflict(relativePath, currentLines, ctx)
+            if (conflictCheck) {
+                return createErrorResult(callId, conflictCheck, Date.now() - startTime)
+            }
+
+            const oldLines = currentLines.slice(startLine - 1, adjustedEnd)
+            const newLines = newContent.split("\n")
+
+            const confirmed = await ctx.requestConfirmation(
+                `Replace lines ${String(startLine)}-${String(adjustedEnd)} in ${relativePath}`,
+                {
+                    filePath: relativePath,
+                    oldLines,
+                    newLines,
+                    startLine,
+                },
+            )
+
+            if (!confirmed) {
+                return createErrorResult(callId, "Edit cancelled by user", Date.now() - startTime)
+            }
+
+            const updatedLines = [
+                ...currentLines.slice(0, startLine - 1),
+                ...newLines,
+                ...currentLines.slice(adjustedEnd),
+            ]
+
+            await this.applyChanges(absolutePath, relativePath, updatedLines, ctx)
+
+            const result: EditLinesResult = {
+                path: relativePath,
+                startLine,
+                endLine: adjustedEnd,
+                linesReplaced: adjustedEnd - startLine + 1,
+                linesInserted: newLines.length,
+                totalLines: updatedLines.length,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Get current file lines from storage or filesystem.
+     */
+    private async getCurrentLines(
+        absolutePath: string,
+        relativePath: string,
+        ctx: ToolContext,
+    ): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const content = await fs.readFile(absolutePath, "utf-8")
+        return content.split("\n")
+    }
+
+    /**
+     * Check if file has changed since it was indexed.
+     * Returns error message if conflict detected, null otherwise.
+     */
+    private async checkHashConflict(
+        relativePath: string,
+        currentLines: string[],
+        ctx: ToolContext,
+    ): Promise<string | null> {
+        const storedFile = await ctx.storage.getFile(relativePath)
+        if (!storedFile) {
+            return null
+        }
+
+        const currentHash = hashLines(currentLines)
+        if (storedFile.hash !== currentHash) {
+            return "File has been modified externally. Please refresh the file before editing."
+        }
+
+        return null
+    }
+
+    /**
+     * Apply changes to filesystem and storage.
+     */
+    private async applyChanges(
+        absolutePath: string,
+        relativePath: string,
+        lines: string[],
+        ctx: ToolContext,
+    ): Promise<void> {
+        const content = lines.join("\n")
+        await fs.writeFile(absolutePath, content, "utf-8")
+
+        const stats = await fs.stat(absolutePath)
+        const fileData = createFileData(lines, hashLines(lines), stats.size, stats.mtimeMs)
+        await ctx.storage.setFile(relativePath, fileData)
+    }
+}

packages/ipuaro/src/infrastructure/tools/edit/index.ts

@@ -0,0 +1,4 @@
+// Edit tools exports
+export { EditLinesTool, type EditLinesResult } from "./EditLinesTool.js"
+export { CreateFileTool, type CreateFileResult } from "./CreateFileTool.js"
+export { DeleteFileTool, type DeleteFileResult } from "./DeleteFileTool.js"

packages/ipuaro/src/infrastructure/tools/git/GitCommitTool.ts

@@ -0,0 +1,155 @@
+import { type CommitResult, type SimpleGit, simpleGit } from "simple-git"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * Author information.
+ */
+export interface CommitAuthor {
+    name: string
+    email: string
+}
+
+/**
+ * Result data from git_commit tool.
+ */
+export interface GitCommitResult {
+    /** Commit hash */
+    hash: string
+    /** Current branch */
+    branch: string
+    /** Commit message */
+    message: string
+    /** Number of files changed */
+    filesChanged: number
+    /** Number of insertions */
+    insertions: number
+    /** Number of deletions */
+    deletions: number
+    /** Author information */
+    author: CommitAuthor | null
+}
+
+/**
+ * Tool for creating git commits.
+ * Requires confirmation before execution.
+ */
+export class GitCommitTool implements ITool {
+    readonly name = "git_commit"
+    readonly description =
+        "Create a git commit with the specified message. " +
+        "Will ask for confirmation. Optionally stage specific files first."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "message",
+            type: "string",
+            description: "Commit message",
+            required: true,
+        },
+        {
+            name: "files",
+            type: "array",
+            description: "Files to stage before commit (optional, defaults to all staged)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = true
+    readonly category = "git" as const
+
+    private readonly gitFactory: (basePath: string) => SimpleGit
+
+    constructor(gitFactory?: (basePath: string) => SimpleGit) {
+        this.gitFactory = gitFactory ?? ((basePath: string) => simpleGit(basePath))
+    }
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.message === undefined) {
+            return "Parameter 'message' is required"
+        }
+        if (typeof params.message !== "string") {
+            return "Parameter 'message' must be a string"
+        }
+        if (params.message.trim() === "") {
+            return "Parameter 'message' cannot be empty"
+        }
+        if (params.files !== undefined) {
+            if (!Array.isArray(params.files)) {
+                return "Parameter 'files' must be an array"
+            }
+            for (const file of params.files) {
+                if (typeof file !== "string") {
+                    return "Parameter 'files' must be an array of strings"
+                }
+            }
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const message = params.message as string
+        const files = params.files as string[] | undefined
+
+        try {
+            const git = this.gitFactory(ctx.projectRoot)
+
+            const isRepo = await git.checkIsRepo()
+            if (!isRepo) {
+                return createErrorResult(
+                    callId,
+                    "Not a git repository. Initialize with 'git init' first.",
+                    Date.now() - startTime,
+                )
+            }
+
+            if (files && files.length > 0) {
+                await git.add(files)
+            }
+
+            const status = await git.status()
+            if (status.staged.length === 0 && (!files || files.length === 0)) {
+                return createErrorResult(
+                    callId,
+                    "Nothing to commit. Stage files first with 'git add' or provide 'files' parameter.",
+                    Date.now() - startTime,
+                )
+            }
+
+            const commitSummary = `Committing ${String(status.staged.length)} file(s): ${message}`
+            const confirmed = await ctx.requestConfirmation(commitSummary)
+
+            if (!confirmed) {
+                return createErrorResult(callId, "Commit cancelled by user", Date.now() - startTime)
+            }
+
+            const commitResult = await git.commit(message)
+            const result = this.formatCommitResult(commitResult, message)
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message_ = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message_, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Format simple-git CommitResult into our result structure.
+     */
+    private formatCommitResult(commit: CommitResult, message: string): GitCommitResult {
+        return {
+            hash: commit.commit,
+            branch: commit.branch,
+            message,
+            filesChanged: commit.summary.changes,
+            insertions: commit.summary.insertions,
+            deletions: commit.summary.deletions,
+            author: commit.author ?? null,
+        }
+    }
+}

packages/ipuaro/src/infrastructure/tools/git/GitDiffTool.ts

@@ -0,0 +1,155 @@
+import { simpleGit, type SimpleGit } from "simple-git"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * A single file diff entry.
+ */
+export interface DiffEntry {
+    /** File path */
+    file: string
+    /** Number of insertions */
+    insertions: number
+    /** Number of deletions */
+    deletions: number
+    /** Whether the file is binary */
+    binary: boolean
+}
+
+/**
+ * Result data from git_diff tool.
+ */
+export interface GitDiffResult {
+    /** Whether showing staged or all changes */
+    staged: boolean
+    /** Path filter applied (null if all files) */
+    pathFilter: string | null
+    /** Whether there are any changes */
+    hasChanges: boolean
+    /** Summary of changes */
+    summary: {
+        /** Number of files changed */
+        filesChanged: number
+        /** Total insertions */
+        insertions: number
+        /** Total deletions */
+        deletions: number
+    }
+    /** List of changed files */
+    files: DiffEntry[]
+    /** Full diff text */
+    diff: string
+}
+
+/**
+ * Tool for getting uncommitted git changes (diff).
+ * Shows what has changed but not yet committed.
+ */
+export class GitDiffTool implements ITool {
+    readonly name = "git_diff"
+    readonly description =
+        "Get uncommitted changes (diff). " + "Shows what has changed but not yet committed."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "Limit diff to specific file or directory",
+            required: false,
+        },
+        {
+            name: "staged",
+            type: "boolean",
+            description: "Show only staged changes (default: false, shows all)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "git" as const
+
+    private readonly gitFactory: (basePath: string) => SimpleGit
+
+    constructor(gitFactory?: (basePath: string) => SimpleGit) {
+        this.gitFactory = gitFactory ?? ((basePath: string) => simpleGit(basePath))
+    }
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.path !== undefined && typeof params.path !== "string") {
+            return "Parameter 'path' must be a string"
+        }
+        if (params.staged !== undefined && typeof params.staged !== "boolean") {
+            return "Parameter 'staged' must be a boolean"
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const pathFilter = (params.path as string) ?? null
+        const staged = (params.staged as boolean) ?? false
+
+        try {
+            const git = this.gitFactory(ctx.projectRoot)
+
+            const isRepo = await git.checkIsRepo()
+            if (!isRepo) {
+                return createErrorResult(
+                    callId,
+                    "Not a git repository. Initialize with 'git init' first.",
+                    Date.now() - startTime,
+                )
+            }
+
+            const diffArgs = this.buildDiffArgs(staged, pathFilter)
+            const diffSummary = await git.diffSummary(diffArgs)
+            const diffText = await git.diff(diffArgs)
+
+            const files: DiffEntry[] = diffSummary.files.map((f) => ({
+                file: f.file,
+                insertions: "insertions" in f ? f.insertions : 0,
+                deletions: "deletions" in f ? f.deletions : 0,
+                binary: f.binary,
+            }))
+
+            const result: GitDiffResult = {
+                staged,
+                pathFilter,
+                hasChanges: diffSummary.files.length > 0,
+                summary: {
+                    filesChanged: diffSummary.files.length,
+                    insertions: diffSummary.insertions,
+                    deletions: diffSummary.deletions,
+                },
+                files,
+                diff: diffText,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Build diff arguments array.
+     */
+    private buildDiffArgs(staged: boolean, pathFilter: string | null): string[] {
+        const args: string[] = []
+
+        if (staged) {
+            args.push("--cached")
+        }
+
+        if (pathFilter) {
+            args.push("--", pathFilter)
+        }
+
+        return args
+    }
+}

packages/ipuaro/src/infrastructure/tools/git/GitStatusTool.ts

@@ -0,0 +1,129 @@
+import { simpleGit, type SimpleGit, type StatusResult } from "simple-git"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * File status entry in git status.
+ */
+export interface FileStatusEntry {
+    /** Relative file path */
+    path: string
+    /** Working directory status (modified, deleted, etc.) */
+    workingDir: string
+    /** Index/staging status */
+    index: string
+}
+
+/**
+ * Result data from git_status tool.
+ */
+export interface GitStatusResult {
+    /** Current branch name */
+    branch: string
+    /** Tracking branch (e.g., origin/main) */
+    tracking: string | null
+    /** Number of commits ahead of tracking */
+    ahead: number
+    /** Number of commits behind tracking */
+    behind: number
+    /** Files staged for commit */
+    staged: FileStatusEntry[]
+    /** Modified files not staged */
+    modified: FileStatusEntry[]
+    /** Untracked files */
+    untracked: string[]
+    /** Files with merge conflicts */
+    conflicted: string[]
+    /** Whether working directory is clean */
+    isClean: boolean
+}
+
+/**
+ * Tool for getting git repository status.
+ * Returns branch info, staged/modified/untracked files.
+ */
+export class GitStatusTool implements ITool {
+    readonly name = "git_status"
+    readonly description =
+        "Get current git repository status. " +
+        "Returns branch name, staged files, modified files, and untracked files."
+    readonly parameters: ToolParameterSchema[] = []
+    readonly requiresConfirmation = false
+    readonly category = "git" as const
+
+    private readonly gitFactory: (basePath: string) => SimpleGit
+
+    constructor(gitFactory?: (basePath: string) => SimpleGit) {
+        this.gitFactory = gitFactory ?? ((basePath: string) => simpleGit(basePath))
+    }
+
+    validateParams(_params: Record<string, unknown>): string | null {
+        return null
+    }
+
+    async execute(_params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        try {
+            const git = this.gitFactory(ctx.projectRoot)
+
+            const isRepo = await git.checkIsRepo()
+            if (!isRepo) {
+                return createErrorResult(
+                    callId,
+                    "Not a git repository. Initialize with 'git init' first.",
+                    Date.now() - startTime,
+                )
+            }
+
+            const status = await git.status()
+            const result = this.formatStatus(status)
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Format simple-git StatusResult into our result structure.
+     */
+    private formatStatus(status: StatusResult): GitStatusResult {
+        const staged: FileStatusEntry[] = []
+        const modified: FileStatusEntry[] = []
+
+        for (const file of status.files) {
+            const entry: FileStatusEntry = {
+                path: file.path,
+                workingDir: file.working_dir,
+                index: file.index,
+            }
+
+            if (file.index !== " " && file.index !== "?") {
+                staged.push(entry)
+            }
+
+            if (file.working_dir !== " " && file.working_dir !== "?") {
+                modified.push(entry)
+            }
+        }
+
+        return {
+            branch: status.current ?? "HEAD (detached)",
+            tracking: status.tracking ?? null,
+            ahead: status.ahead,
+            behind: status.behind,
+            staged,
+            modified,
+            untracked: status.not_added,
+            conflicted: status.conflicted,
+            isClean: status.isClean(),
+        }
+    }
+}

packages/ipuaro/src/infrastructure/tools/git/index.ts

@@ -0,0 +1,6 @@
+// Git tools exports
+export { GitStatusTool, type GitStatusResult, type FileStatusEntry } from "./GitStatusTool.js"
+
+export { GitDiffTool, type GitDiffResult, type DiffEntry } from "./GitDiffTool.js"
+
+export { GitCommitTool, type GitCommitResult, type CommitAuthor } from "./GitCommitTool.js"

packages/ipuaro/src/infrastructure/tools/index.ts

@@ -0,0 +1,75 @@
+// Tools module exports
+export { ToolRegistry } from "./registry.js"
+
+// Read tools
+export { GetLinesTool, type GetLinesResult } from "./read/GetLinesTool.js"
+export { GetFunctionTool, type GetFunctionResult } from "./read/GetFunctionTool.js"
+export { GetClassTool, type GetClassResult } from "./read/GetClassTool.js"
+export {
+    GetStructureTool,
+    type GetStructureResult,
+    type TreeNode,
+} from "./read/GetStructureTool.js"
+
+// Edit tools
+export { EditLinesTool, type EditLinesResult } from "./edit/EditLinesTool.js"
+export { CreateFileTool, type CreateFileResult } from "./edit/CreateFileTool.js"
+export { DeleteFileTool, type DeleteFileResult } from "./edit/DeleteFileTool.js"
+
+// Search tools
+export {
+    FindReferencesTool,
+    type FindReferencesResult,
+    type SymbolReference,
+} from "./search/FindReferencesTool.js"
+export {
+    FindDefinitionTool,
+    type FindDefinitionResult,
+    type DefinitionLocation,
+} from "./search/FindDefinitionTool.js"
+
+// Analysis tools
+export {
+    GetDependenciesTool,
+    type GetDependenciesResult,
+    type DependencyEntry,
+} from "./analysis/GetDependenciesTool.js"
+
+export {
+    GetDependentsTool,
+    type GetDependentsResult,
+    type DependentEntry,
+} from "./analysis/GetDependentsTool.js"
+
+export {
+    GetComplexityTool,
+    type GetComplexityResult,
+    type ComplexityEntry,
+} from "./analysis/GetComplexityTool.js"
+
+export {
+    GetTodosTool,
+    type GetTodosResult,
+    type TodoEntry,
+    type TodoType,
+} from "./analysis/GetTodosTool.js"
+
+// Git tools
+export { GitStatusTool, type GitStatusResult, type FileStatusEntry } from "./git/GitStatusTool.js"
+
+export { GitDiffTool, type GitDiffResult, type DiffEntry } from "./git/GitDiffTool.js"
+
+export { GitCommitTool, type GitCommitResult, type CommitAuthor } from "./git/GitCommitTool.js"
+
+// Run tools
+export {
+    CommandSecurity,
+    DEFAULT_BLACKLIST,
+    DEFAULT_WHITELIST,
+    type CommandClassification,
+    type SecurityCheckResult,
+} from "./run/CommandSecurity.js"
+
+export { RunCommandTool, type RunCommandResult } from "./run/RunCommandTool.js"
+
+export { RunTestsTool, type RunTestsResult, type TestRunner } from "./run/RunTestsTool.js"

packages/ipuaro/src/infrastructure/tools/read/GetClassTool.ts

@@ -0,0 +1,166 @@
+import { promises as fs } from "node:fs"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import type { ClassInfo } from "../../../domain/value-objects/FileAST.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from get_class tool.
+ */
+export interface GetClassResult {
+    path: string
+    name: string
+    startLine: number
+    endLine: number
+    isExported: boolean
+    isAbstract: boolean
+    extends?: string
+    implements: string[]
+    methods: string[]
+    properties: string[]
+    content: string
+}
+
+/**
+ * Tool for retrieving a class's source code by name.
+ * Uses AST to find exact line range.
+ */
+export class GetClassTool implements ITool {
+    readonly name = "get_class"
+    readonly description =
+        "Get a class's source code by name. Uses AST to find exact line range. " +
+        "Returns the class code with line numbers."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "name",
+            type: "string",
+            description: "Class name to retrieve",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "read" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        if (typeof params.name !== "string" || params.name.trim() === "") {
+            return "Parameter 'name' is required and must be a non-empty string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const className = params.name as string
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const ast = await ctx.storage.getAST(relativePath)
+            if (!ast) {
+                return createErrorResult(
+                    callId,
+                    `AST not found for "${relativePath}". File may not be indexed.`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const classInfo = this.findClass(ast.classes, className)
+            if (!classInfo) {
+                const available = ast.classes.map((c) => c.name).join(", ") || "none"
+                return createErrorResult(
+                    callId,
+                    `Class "${className}" not found in "${relativePath}". Available: ${available}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const lines = await this.getFileLines(absolutePath, relativePath, ctx)
+            const classLines = lines.slice(classInfo.lineStart - 1, classInfo.lineEnd)
+            const content = this.formatLinesWithNumbers(classLines, classInfo.lineStart)
+
+            const result: GetClassResult = {
+                path: relativePath,
+                name: classInfo.name,
+                startLine: classInfo.lineStart,
+                endLine: classInfo.lineEnd,
+                isExported: classInfo.isExported,
+                isAbstract: classInfo.isAbstract,
+                extends: classInfo.extends,
+                implements: classInfo.implements,
+                methods: classInfo.methods.map((m) => m.name),
+                properties: classInfo.properties.map((p) => p.name),
+                content,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Find class by name in AST.
+     */
+    private findClass(classes: ClassInfo[], name: string): ClassInfo | undefined {
+        return classes.find((c) => c.name === name)
+    }
+
+    /**
+     * Get file lines from storage or filesystem.
+     */
+    private async getFileLines(
+        absolutePath: string,
+        relativePath: string,
+        ctx: ToolContext,
+    ): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const content = await fs.readFile(absolutePath, "utf-8")
+        return content.split("\n")
+    }
+
+    /**
+     * Format lines with line numbers.
+     */
+    private formatLinesWithNumbers(lines: string[], startLine: number): string {
+        const maxLineNum = startLine + lines.length - 1
+        const padWidth = String(maxLineNum).length
+
+        return lines
+            .map((line, index) => {
+                const lineNum = String(startLine + index).padStart(padWidth, " ")
+                return `${lineNum}│${line}`
+            })
+            .join("\n")
+    }
+}

packages/ipuaro/src/infrastructure/tools/read/GetFunctionTool.ts

@@ -0,0 +1,162 @@
+import { promises as fs } from "node:fs"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import type { FunctionInfo } from "../../../domain/value-objects/FileAST.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from get_function tool.
+ */
+export interface GetFunctionResult {
+    path: string
+    name: string
+    startLine: number
+    endLine: number
+    isAsync: boolean
+    isExported: boolean
+    params: string[]
+    returnType?: string
+    content: string
+}
+
+/**
+ * Tool for retrieving a function's source code by name.
+ * Uses AST to find exact line range.
+ */
+export class GetFunctionTool implements ITool {
+    readonly name = "get_function"
+    readonly description =
+        "Get a function's source code by name. Uses AST to find exact line range. " +
+        "Returns the function code with line numbers."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "name",
+            type: "string",
+            description: "Function name to retrieve",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "read" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        if (typeof params.name !== "string" || params.name.trim() === "") {
+            return "Parameter 'name' is required and must be a non-empty string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const functionName = params.name as string
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const ast = await ctx.storage.getAST(relativePath)
+            if (!ast) {
+                return createErrorResult(
+                    callId,
+                    `AST not found for "${relativePath}". File may not be indexed.`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const functionInfo = this.findFunction(ast.functions, functionName)
+            if (!functionInfo) {
+                const available = ast.functions.map((f) => f.name).join(", ") || "none"
+                return createErrorResult(
+                    callId,
+                    `Function "${functionName}" not found in "${relativePath}". Available: ${available}`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const lines = await this.getFileLines(absolutePath, relativePath, ctx)
+            const functionLines = lines.slice(functionInfo.lineStart - 1, functionInfo.lineEnd)
+            const content = this.formatLinesWithNumbers(functionLines, functionInfo.lineStart)
+
+            const result: GetFunctionResult = {
+                path: relativePath,
+                name: functionInfo.name,
+                startLine: functionInfo.lineStart,
+                endLine: functionInfo.lineEnd,
+                isAsync: functionInfo.isAsync,
+                isExported: functionInfo.isExported,
+                params: functionInfo.params.map((p) => p.name),
+                returnType: functionInfo.returnType,
+                content,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Find function by name in AST.
+     */
+    private findFunction(functions: FunctionInfo[], name: string): FunctionInfo | undefined {
+        return functions.find((f) => f.name === name)
+    }
+
+    /**
+     * Get file lines from storage or filesystem.
+     */
+    private async getFileLines(
+        absolutePath: string,
+        relativePath: string,
+        ctx: ToolContext,
+    ): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const content = await fs.readFile(absolutePath, "utf-8")
+        return content.split("\n")
+    }
+
+    /**
+     * Format lines with line numbers.
+     */
+    private formatLinesWithNumbers(lines: string[], startLine: number): string {
+        const maxLineNum = startLine + lines.length - 1
+        const padWidth = String(maxLineNum).length
+
+        return lines
+            .map((line, index) => {
+                const lineNum = String(startLine + index).padStart(padWidth, " ")
+                return `${lineNum}│${line}`
+            })
+            .join("\n")
+    }
+}

packages/ipuaro/src/infrastructure/tools/read/GetLinesTool.ts

@@ -0,0 +1,159 @@
+import { promises as fs } from "node:fs"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Result data from get_lines tool.
+ */
+export interface GetLinesResult {
+    path: string
+    startLine: number
+    endLine: number
+    totalLines: number
+    content: string
+}
+
+/**
+ * Tool for reading specific lines from a file.
+ * Returns content with line numbers.
+ */
+export class GetLinesTool implements ITool {
+    readonly name = "get_lines"
+    readonly description =
+        "Get specific lines from a file. Returns the content with line numbers. " +
+        "If no range is specified, returns the entire file."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "File path relative to project root",
+            required: true,
+        },
+        {
+            name: "start",
+            type: "number",
+            description: "Start line number (1-based, inclusive)",
+            required: false,
+        },
+        {
+            name: "end",
+            type: "number",
+            description: "End line number (1-based, inclusive)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "read" as const
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.path !== "string" || params.path.trim() === "") {
+            return "Parameter 'path' is required and must be a non-empty string"
+        }
+
+        if (params.start !== undefined) {
+            if (typeof params.start !== "number" || !Number.isInteger(params.start)) {
+                return "Parameter 'start' must be an integer"
+            }
+            if (params.start < 1) {
+                return "Parameter 'start' must be >= 1"
+            }
+        }
+
+        if (params.end !== undefined) {
+            if (typeof params.end !== "number" || !Number.isInteger(params.end)) {
+                return "Parameter 'end' must be an integer"
+            }
+            if (params.end < 1) {
+                return "Parameter 'end' must be >= 1"
+            }
+        }
+
+        if (params.start !== undefined && params.end !== undefined && params.start > params.end) {
+            return "Parameter 'start' must be <= 'end'"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = params.path as string
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const lines = await this.getFileLines(absolutePath, relativePath, ctx)
+            const totalLines = lines.length
+
+            let startLine = (params.start as number | undefined) ?? 1
+            let endLine = (params.end as number | undefined) ?? totalLines
+
+            startLine = Math.max(1, Math.min(startLine, totalLines))
+            endLine = Math.max(startLine, Math.min(endLine, totalLines))
+
+            const selectedLines = lines.slice(startLine - 1, endLine)
+            const content = this.formatLinesWithNumbers(selectedLines, startLine)
+
+            const result: GetLinesResult = {
+                path: relativePath,
+                startLine,
+                endLine,
+                totalLines,
+                content,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Get file lines from storage or filesystem.
+     */
+    private async getFileLines(
+        absolutePath: string,
+        relativePath: string,
+        ctx: ToolContext,
+    ): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const content = await fs.readFile(absolutePath, "utf-8")
+        return content.split("\n")
+    }
+
+    /**
+     * Format lines with line numbers.
+     * Example: "  1│const x = 1"
+     */
+    private formatLinesWithNumbers(lines: string[], startLine: number): string {
+        const maxLineNum = startLine + lines.length - 1
+        const padWidth = String(maxLineNum).length
+
+        return lines
+            .map((line, index) => {
+                const lineNum = String(startLine + index).padStart(padWidth, " ")
+                return `${lineNum}│${line}`
+            })
+            .join("\n")
+    }
+}

packages/ipuaro/src/infrastructure/tools/read/GetStructureTool.ts

@@ -0,0 +1,207 @@
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { DEFAULT_IGNORE_PATTERNS } from "../../../domain/constants/index.js"
+import { PathValidator } from "../../security/PathValidator.js"
+
+/**
+ * Tree node representing a file or directory.
+ */
+export interface TreeNode {
+    name: string
+    type: "file" | "directory"
+    children?: TreeNode[]
+}
+
+/**
+ * Result data from get_structure tool.
+ */
+export interface GetStructureResult {
+    path: string
+    tree: TreeNode
+    content: string
+    stats: {
+        directories: number
+        files: number
+    }
+}
+
+/**
+ * Tool for getting project directory structure as a tree.
+ */
+export class GetStructureTool implements ITool {
+    readonly name = "get_structure"
+    readonly description =
+        "Get project directory structure as a tree. " +
+        "If path is specified, shows structure of that subdirectory only."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "Subdirectory path relative to project root (optional, defaults to root)",
+            required: false,
+        },
+        {
+            name: "depth",
+            type: "number",
+            description: "Maximum depth to traverse (default: unlimited)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "read" as const
+
+    private readonly defaultIgnorePatterns = new Set([
+        ...DEFAULT_IGNORE_PATTERNS,
+        ".git",
+        ".idea",
+        ".vscode",
+        "__pycache__",
+        ".pytest_cache",
+        ".nyc_output",
+        "coverage",
+    ])
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.path !== undefined) {
+            if (typeof params.path !== "string") {
+                return "Parameter 'path' must be a string"
+            }
+        }
+
+        if (params.depth !== undefined) {
+            if (typeof params.depth !== "number" || !Number.isInteger(params.depth)) {
+                return "Parameter 'depth' must be an integer"
+            }
+            if (params.depth < 1) {
+                return "Parameter 'depth' must be >= 1"
+            }
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const inputPath = (params.path as string | undefined) ?? "."
+        const maxDepth = params.depth as number | undefined
+        const pathValidator = new PathValidator(ctx.projectRoot)
+
+        let absolutePath: string
+        let relativePath: string
+        try {
+            ;[absolutePath, relativePath] = pathValidator.resolveOrThrow(inputPath)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+
+        try {
+            const stat = await fs.stat(absolutePath)
+            if (!stat.isDirectory()) {
+                return createErrorResult(
+                    callId,
+                    `Path "${relativePath}" is not a directory`,
+                    Date.now() - startTime,
+                )
+            }
+
+            const stats = { directories: 0, files: 0 }
+            const tree = await this.buildTree(absolutePath, maxDepth, 0, stats)
+            const content = this.formatTree(tree)
+
+            const result: GetStructureResult = {
+                path: relativePath || ".",
+                tree,
+                content,
+                stats,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Build tree structure recursively.
+     */
+    private async buildTree(
+        dirPath: string,
+        maxDepth: number | undefined,
+        currentDepth: number,
+        stats: { directories: number; files: number },
+    ): Promise<TreeNode> {
+        const name = path.basename(dirPath) || dirPath
+        const node: TreeNode = { name, type: "directory", children: [] }
+        stats.directories++
+
+        if (maxDepth !== undefined && currentDepth >= maxDepth) {
+            return node
+        }
+
+        const entries = await fs.readdir(dirPath, { withFileTypes: true })
+        const sortedEntries = entries
+            .filter((e) => !this.shouldIgnore(e.name))
+            .sort((a, b) => {
+                if (a.isDirectory() && !b.isDirectory()) {
+                    return -1
+                }
+                if (!a.isDirectory() && b.isDirectory()) {
+                    return 1
+                }
+                return a.name.localeCompare(b.name)
+            })
+
+        for (const entry of sortedEntries) {
+            const entryPath = path.join(dirPath, entry.name)
+
+            if (entry.isDirectory()) {
+                const childNode = await this.buildTree(entryPath, maxDepth, currentDepth + 1, stats)
+                node.children?.push(childNode)
+            } else if (entry.isFile()) {
+                node.children?.push({ name: entry.name, type: "file" })
+                stats.files++
+            }
+        }
+
+        return node
+    }
+
+    /**
+     * Check if entry should be ignored.
+     */
+    private shouldIgnore(name: string): boolean {
+        return this.defaultIgnorePatterns.has(name)
+    }
+
+    /**
+     * Format tree as ASCII art.
+     */
+    private formatTree(node: TreeNode, prefix = "", isLast = true): string {
+        const lines: string[] = []
+        const connector = isLast ? "└── " : "├── "
+        const icon = node.type === "directory" ? "📁 " : "📄 "
+
+        lines.push(`${prefix}${connector}${icon}${node.name}`)
+
+        if (node.children) {
+            const childPrefix = prefix + (isLast ? "    " : "│   ")
+            const childCount = node.children.length
+            node.children.forEach((child, index) => {
+                const childIsLast = index === childCount - 1
+                lines.push(this.formatTree(child, childPrefix, childIsLast))
+            })
+        }
+
+        return lines.join("\n")
+    }
+}

packages/ipuaro/src/infrastructure/tools/registry.ts

@@ -0,0 +1,190 @@
+import type { IToolRegistry } from "../../application/interfaces/IToolRegistry.js"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../domain/services/ITool.js"
+import { createErrorResult, type ToolResult } from "../../domain/value-objects/ToolResult.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+
+/**
+ * Tool registry implementation.
+ * Manages registration and execution of tools.
+ */
+export class ToolRegistry implements IToolRegistry {
+    private readonly tools = new Map<string, ITool>()
+
+    /**
+     * Register a tool.
+     * @throws IpuaroError if tool with same name already registered
+     */
+    register(tool: ITool): void {
+        if (this.tools.has(tool.name)) {
+            throw new IpuaroError(
+                "validation",
+                `Tool "${tool.name}" is already registered`,
+                true,
+                "Use a different tool name or unregister the existing tool first",
+            )
+        }
+        this.tools.set(tool.name, tool)
+    }
+
+    /**
+     * Unregister a tool by name.
+     * @returns true if tool was removed, false if not found
+     */
+    unregister(name: string): boolean {
+        return this.tools.delete(name)
+    }
+
+    /**
+     * Get tool by name.
+     */
+    get(name: string): ITool | undefined {
+        return this.tools.get(name)
+    }
+
+    /**
+     * Get all registered tools.
+     */
+    getAll(): ITool[] {
+        return Array.from(this.tools.values())
+    }
+
+    /**
+     * Get tools by category.
+     */
+    getByCategory(category: ITool["category"]): ITool[] {
+        return this.getAll().filter((tool) => tool.category === category)
+    }
+
+    /**
+     * Check if tool exists.
+     */
+    has(name: string): boolean {
+        return this.tools.has(name)
+    }
+
+    /**
+     * Get number of registered tools.
+     */
+    get size(): number {
+        return this.tools.size
+    }
+
+    /**
+     * Execute tool by name.
+     * @throws IpuaroError if tool not found
+     */
+    async execute(
+        name: string,
+        params: Record<string, unknown>,
+        ctx: ToolContext,
+    ): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${name}-${String(startTime)}`
+
+        const tool = this.tools.get(name)
+        if (!tool) {
+            return createErrorResult(callId, `Tool "${name}" not found`, Date.now() - startTime)
+        }
+
+        const validationError = tool.validateParams(params)
+        if (validationError) {
+            return createErrorResult(callId, validationError, Date.now() - startTime)
+        }
+
+        if (tool.requiresConfirmation) {
+            const confirmed = await ctx.requestConfirmation(
+                `Execute "${name}" with params: ${JSON.stringify(params)}`,
+            )
+            if (!confirmed) {
+                return createErrorResult(callId, "User cancelled operation", Date.now() - startTime)
+            }
+        }
+
+        try {
+            const result = await tool.execute(params, ctx)
+            return {
+                ...result,
+                callId,
+            }
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Get tool definitions for LLM.
+     * Converts ITool[] to LLM-compatible format.
+     */
+    getToolDefinitions(): {
+        name: string
+        description: string
+        parameters: {
+            type: "object"
+            properties: Record<string, { type: string; description: string }>
+            required: string[]
+        }
+    }[] {
+        return this.getAll().map((tool) => ({
+            name: tool.name,
+            description: tool.description,
+            parameters: this.convertParametersToSchema(tool.parameters),
+        }))
+    }
+
+    /**
+     * Convert tool parameters to JSON Schema format.
+     */
+    private convertParametersToSchema(params: ToolParameterSchema[]): {
+        type: "object"
+        properties: Record<string, { type: string; description: string }>
+        required: string[]
+    } {
+        const properties: Record<string, { type: string; description: string }> = {}
+        const required: string[] = []
+
+        for (const param of params) {
+            properties[param.name] = {
+                type: param.type,
+                description: param.description,
+            }
+            if (param.required) {
+                required.push(param.name)
+            }
+        }
+
+        return {
+            type: "object",
+            properties,
+            required,
+        }
+    }
+
+    /**
+     * Clear all registered tools.
+     */
+    clear(): void {
+        this.tools.clear()
+    }
+
+    /**
+     * Get tool names.
+     */
+    getNames(): string[] {
+        return Array.from(this.tools.keys())
+    }
+
+    /**
+     * Get tools that require confirmation.
+     */
+    getConfirmationTools(): ITool[] {
+        return this.getAll().filter((tool) => tool.requiresConfirmation)
+    }
+
+    /**
+     * Get tools that don't require confirmation.
+     */
+    getSafeTools(): ITool[] {
+        return this.getAll().filter((tool) => !tool.requiresConfirmation)
+    }
+}

packages/ipuaro/src/infrastructure/tools/run/CommandSecurity.ts

@@ -0,0 +1,257 @@
+/**
+ * Command security classification.
+ */
+export type CommandClassification = "allowed" | "blocked" | "requires_confirmation"
+
+/**
+ * Result of command security check.
+ */
+export interface SecurityCheckResult {
+    /** Classification of the command */
+    classification: CommandClassification
+    /** Reason for the classification */
+    reason: string
+}
+
+/**
+ * Dangerous commands that are always blocked.
+ * These commands can cause data loss or security issues.
+ */
+export const DEFAULT_BLACKLIST: string[] = [
+    // Destructive file operations
+    "rm -rf",
+    "rm -r",
+    "rm -fr",
+    "rmdir",
+    // Dangerous git operations
+    "git push --force",
+    "git push -f",
+    "git reset --hard",
+    "git clean -fd",
+    "git clean -f",
+    // Publishing/deployment
+    "npm publish",
+    "yarn publish",
+    "pnpm publish",
+    // System commands
+    "sudo",
+    "su ",
+    "chmod",
+    "chown",
+    // Network/download commands that could be dangerous
+    "| sh",
+    "| bash",
+    // Environment manipulation
+    "export ",
+    "unset ",
+    // Process control
+    "kill -9",
+    "killall",
+    "pkill",
+    // Disk operations (require exact command start)
+    "mkfs",
+    "fdisk",
+    // Other dangerous
+    ":(){ :|:& };:",
+    "eval ",
+]
+
+/**
+ * Safe commands that don't require confirmation.
+ * Matched by first word (command name).
+ */
+export const DEFAULT_WHITELIST: string[] = [
+    // Package managers
+    "npm",
+    "pnpm",
+    "yarn",
+    "npx",
+    "bun",
+    // Node.js
+    "node",
+    "tsx",
+    "ts-node",
+    // Git (read operations)
+    "git",
+    // Build tools
+    "tsc",
+    "tsup",
+    "esbuild",
+    "vite",
+    "webpack",
+    "rollup",
+    // Testing
+    "vitest",
+    "jest",
+    "mocha",
+    "playwright",
+    "cypress",
+    // Linting/formatting
+    "eslint",
+    "prettier",
+    "biome",
+    // Utilities
+    "echo",
+    "cat",
+    "ls",
+    "pwd",
+    "which",
+    "head",
+    "tail",
+    "grep",
+    "find",
+    "wc",
+    "sort",
+    "diff",
+]
+
+/**
+ * Git subcommands that are safe and don't need confirmation.
+ */
+const SAFE_GIT_SUBCOMMANDS: string[] = [
+    "status",
+    "log",
+    "diff",
+    "show",
+    "branch",
+    "remote",
+    "fetch",
+    "pull",
+    "stash",
+    "tag",
+    "blame",
+    "ls-files",
+    "ls-tree",
+    "rev-parse",
+    "describe",
+]
+
+/**
+ * Command security checker.
+ * Determines if a command is safe to execute, blocked, or requires confirmation.
+ */
+export class CommandSecurity {
+    private readonly blacklist: string[]
+    private readonly whitelist: string[]
+
+    constructor(blacklist: string[] = DEFAULT_BLACKLIST, whitelist: string[] = DEFAULT_WHITELIST) {
+        this.blacklist = blacklist.map((cmd) => cmd.toLowerCase())
+        this.whitelist = whitelist.map((cmd) => cmd.toLowerCase())
+    }
+
+    /**
+     * Check if a command is safe to execute.
+     */
+    check(command: string): SecurityCheckResult {
+        const normalized = command.trim().toLowerCase()
+
+        const blacklistMatch = this.isBlacklisted(normalized)
+        if (blacklistMatch) {
+            return {
+                classification: "blocked",
+                reason: `Command contains blocked pattern: '${blacklistMatch}'`,
+            }
+        }
+
+        if (this.isWhitelisted(normalized)) {
+            return {
+                classification: "allowed",
+                reason: "Command is in the whitelist",
+            }
+        }
+
+        return {
+            classification: "requires_confirmation",
+            reason: "Command is not in the whitelist and requires user confirmation",
+        }
+    }
+
+    /**
+     * Check if command matches any blacklist pattern.
+     * Returns the matched pattern or null.
+     */
+    private isBlacklisted(command: string): string | null {
+        for (const pattern of this.blacklist) {
+            if (command.includes(pattern)) {
+                return pattern
+            }
+        }
+        return null
+    }
+
+    /**
+     * Check if command's first word is in the whitelist.
+     */
+    private isWhitelisted(command: string): boolean {
+        const firstWord = this.getFirstWord(command)
+
+        if (!this.whitelist.includes(firstWord)) {
+            return false
+        }
+
+        if (firstWord === "git") {
+            return this.isGitCommandSafe(command)
+        }
+
+        return true
+    }
+
+    /**
+     * Check if git command is safe (read-only operations).
+     */
+    private isGitCommandSafe(command: string): boolean {
+        const parts = command.split(/\s+/)
+        if (parts.length < 2) {
+            return false
+        }
+
+        const subcommand = parts[1]
+        return SAFE_GIT_SUBCOMMANDS.includes(subcommand)
+    }
+
+    /**
+     * Get first word from command.
+     */
+    private getFirstWord(command: string): string {
+        const match = /^(\S+)/.exec(command)
+        return match ? match[1] : ""
+    }
+
+    /**
+     * Add patterns to the blacklist.
+     */
+    addToBlacklist(patterns: string[]): void {
+        for (const pattern of patterns) {
+            const normalized = pattern.toLowerCase()
+            if (!this.blacklist.includes(normalized)) {
+                this.blacklist.push(normalized)
+            }
+        }
+    }
+
+    /**
+     * Add commands to the whitelist.
+     */
+    addToWhitelist(commands: string[]): void {
+        for (const cmd of commands) {
+            const normalized = cmd.toLowerCase()
+            if (!this.whitelist.includes(normalized)) {
+                this.whitelist.push(normalized)
+            }
+        }
+    }
+
+    /**
+     * Get current blacklist.
+     */
+    getBlacklist(): string[] {
+        return [...this.blacklist]
+    }
+
+    /**
+     * Get current whitelist.
+     */
+    getWhitelist(): string[] {
+        return [...this.whitelist]
+    }
+}

packages/ipuaro/src/infrastructure/tools/run/RunCommandTool.ts

@@ -0,0 +1,227 @@
+import { exec } from "node:child_process"
+import { promisify } from "node:util"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+import { CommandSecurity } from "./CommandSecurity.js"
+
+const execAsync = promisify(exec)
+
+/**
+ * Result data from run_command tool.
+ */
+export interface RunCommandResult {
+    /** The command that was executed */
+    command: string
+    /** Exit code (0 = success) */
+    exitCode: number
+    /** Standard output */
+    stdout: string
+    /** Standard error output */
+    stderr: string
+    /** Whether command was successful (exit code 0) */
+    success: boolean
+    /** Execution time in milliseconds */
+    durationMs: number
+    /** Whether user confirmation was required */
+    requiredConfirmation: boolean
+}
+
+/**
+ * Default command timeout in milliseconds.
+ */
+const DEFAULT_TIMEOUT = 30000
+
+/**
+ * Maximum output size in characters.
+ */
+const MAX_OUTPUT_SIZE = 100000
+
+/**
+ * Tool for executing shell commands.
+ * Commands are checked against blacklist/whitelist for security.
+ */
+export class RunCommandTool implements ITool {
+    readonly name = "run_command"
+    readonly description =
+        "Execute a shell command in the project directory. " +
+        "Commands are checked against blacklist/whitelist for security. " +
+        "Unknown commands require user confirmation."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "command",
+            type: "string",
+            description: "Shell command to execute",
+            required: true,
+        },
+        {
+            name: "timeout",
+            type: "number",
+            description: "Timeout in milliseconds (default: 30000)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "run" as const
+
+    private readonly security: CommandSecurity
+    private readonly execFn: typeof execAsync
+
+    constructor(security?: CommandSecurity, execFn?: typeof execAsync) {
+        this.security = security ?? new CommandSecurity()
+        this.execFn = execFn ?? execAsync
+    }
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.command === undefined) {
+            return "Parameter 'command' is required"
+        }
+        if (typeof params.command !== "string") {
+            return "Parameter 'command' must be a string"
+        }
+        if (params.command.trim() === "") {
+            return "Parameter 'command' cannot be empty"
+        }
+        if (params.timeout !== undefined) {
+            if (typeof params.timeout !== "number") {
+                return "Parameter 'timeout' must be a number"
+            }
+            if (params.timeout <= 0) {
+                return "Parameter 'timeout' must be positive"
+            }
+            if (params.timeout > 600000) {
+                return "Parameter 'timeout' cannot exceed 600000ms (10 minutes)"
+            }
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const command = params.command as string
+        const timeout = (params.timeout as number) ?? DEFAULT_TIMEOUT
+
+        const securityCheck = this.security.check(command)
+
+        if (securityCheck.classification === "blocked") {
+            return createErrorResult(
+                callId,
+                `Command blocked for security: ${securityCheck.reason}`,
+                Date.now() - startTime,
+            )
+        }
+
+        let requiredConfirmation = false
+
+        if (securityCheck.classification === "requires_confirmation") {
+            requiredConfirmation = true
+            const confirmed = await ctx.requestConfirmation(
+                `Execute command: ${command}\n\nReason: ${securityCheck.reason}`,
+            )
+
+            if (!confirmed) {
+                return createErrorResult(
+                    callId,
+                    "Command execution cancelled by user",
+                    Date.now() - startTime,
+                )
+            }
+        }
+
+        try {
+            const execStartTime = Date.now()
+
+            const { stdout, stderr } = await this.execFn(command, {
+                cwd: ctx.projectRoot,
+                timeout,
+                maxBuffer: MAX_OUTPUT_SIZE,
+                env: { ...process.env, FORCE_COLOR: "0" },
+            })
+
+            const durationMs = Date.now() - execStartTime
+
+            const result: RunCommandResult = {
+                command,
+                exitCode: 0,
+                stdout: this.truncateOutput(stdout),
+                stderr: this.truncateOutput(stderr),
+                success: true,
+                durationMs,
+                requiredConfirmation,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            return this.handleExecError(callId, command, error, requiredConfirmation, startTime)
+        }
+    }
+
+    /**
+     * Handle exec errors and return appropriate result.
+     */
+    private handleExecError(
+        callId: string,
+        command: string,
+        error: unknown,
+        requiredConfirmation: boolean,
+        startTime: number,
+    ): ToolResult {
+        if (this.isExecError(error)) {
+            const result: RunCommandResult = {
+                command,
+                exitCode: error.code ?? 1,
+                stdout: this.truncateOutput(error.stdout ?? ""),
+                stderr: this.truncateOutput(error.stderr ?? error.message),
+                success: false,
+                durationMs: Date.now() - startTime,
+                requiredConfirmation,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        }
+
+        if (error instanceof Error) {
+            if (error.message.includes("ETIMEDOUT") || error.message.includes("timed out")) {
+                return createErrorResult(
+                    callId,
+                    `Command timed out: ${command}`,
+                    Date.now() - startTime,
+                )
+            }
+            return createErrorResult(callId, error.message, Date.now() - startTime)
+        }
+
+        return createErrorResult(callId, String(error), Date.now() - startTime)
+    }
+
+    /**
+     * Type guard for exec error.
+     */
+    private isExecError(
+        error: unknown,
+    ): error is Error & { code?: number; stdout?: string; stderr?: string } {
+        return error instanceof Error && "code" in error
+    }
+
+    /**
+     * Truncate output if too large.
+     */
+    private truncateOutput(output: string): string {
+        if (output.length <= MAX_OUTPUT_SIZE) {
+            return output
+        }
+        return `${output.slice(0, MAX_OUTPUT_SIZE)}\n... (output truncated)`
+    }
+
+    /**
+     * Get the security checker instance.
+     */
+    getSecurity(): CommandSecurity {
+        return this.security
+    }
+}

packages/ipuaro/src/infrastructure/tools/run/RunTestsTool.ts

@@ -0,0 +1,365 @@
+import { exec } from "node:child_process"
+import { promisify } from "node:util"
+import * as path from "node:path"
+import * as fs from "node:fs/promises"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+const execAsync = promisify(exec)
+
+/**
+ * Supported test runners.
+ */
+export type TestRunner = "vitest" | "jest" | "mocha" | "npm"
+
+/**
+ * Result data from run_tests tool.
+ */
+export interface RunTestsResult {
+    /** Test runner that was used */
+    runner: TestRunner
+    /** Command that was executed */
+    command: string
+    /** Whether all tests passed */
+    passed: boolean
+    /** Exit code */
+    exitCode: number
+    /** Standard output */
+    stdout: string
+    /** Standard error output */
+    stderr: string
+    /** Execution time in milliseconds */
+    durationMs: number
+}
+
+/**
+ * Default test timeout in milliseconds (5 minutes).
+ */
+const DEFAULT_TIMEOUT = 300000
+
+/**
+ * Maximum output size in characters.
+ */
+const MAX_OUTPUT_SIZE = 200000
+
+/**
+ * Tool for running project tests.
+ * Auto-detects test runner (vitest, jest, mocha, npm test).
+ */
+export class RunTestsTool implements ITool {
+    readonly name = "run_tests"
+    readonly description =
+        "Run the project's test suite. Auto-detects test runner (vitest, jest, npm test). " +
+        "Returns test results summary."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "path",
+            type: "string",
+            description: "Run tests for specific file or directory",
+            required: false,
+        },
+        {
+            name: "filter",
+            type: "string",
+            description: "Filter tests by name pattern",
+            required: false,
+        },
+        {
+            name: "watch",
+            type: "boolean",
+            description: "Run in watch mode (default: false)",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "run" as const
+
+    private readonly execFn: typeof execAsync
+    private readonly fsAccess: typeof fs.access
+    private readonly fsReadFile: typeof fs.readFile
+
+    constructor(
+        execFn?: typeof execAsync,
+        fsAccess?: typeof fs.access,
+        fsReadFile?: typeof fs.readFile,
+    ) {
+        this.execFn = execFn ?? execAsync
+        this.fsAccess = fsAccess ?? fs.access
+        this.fsReadFile = fsReadFile ?? fs.readFile
+    }
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (params.path !== undefined && typeof params.path !== "string") {
+            return "Parameter 'path' must be a string"
+        }
+        if (params.filter !== undefined && typeof params.filter !== "string") {
+            return "Parameter 'filter' must be a string"
+        }
+        if (params.watch !== undefined && typeof params.watch !== "boolean") {
+            return "Parameter 'watch' must be a boolean"
+        }
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const testPath = params.path as string | undefined
+        const filter = params.filter as string | undefined
+        const watch = (params.watch as boolean) ?? false
+
+        try {
+            const runner = await this.detectTestRunner(ctx.projectRoot)
+
+            if (!runner) {
+                return createErrorResult(
+                    callId,
+                    "No test runner detected. Ensure vitest, jest, or mocha is installed, or 'test' script exists in package.json.",
+                    Date.now() - startTime,
+                )
+            }
+
+            const command = this.buildCommand(runner, testPath, filter, watch)
+            const execStartTime = Date.now()
+
+            try {
+                const { stdout, stderr } = await this.execFn(command, {
+                    cwd: ctx.projectRoot,
+                    timeout: DEFAULT_TIMEOUT,
+                    maxBuffer: MAX_OUTPUT_SIZE,
+                    env: { ...process.env, FORCE_COLOR: "0", CI: "true" },
+                })
+
+                const durationMs = Date.now() - execStartTime
+
+                const result: RunTestsResult = {
+                    runner,
+                    command,
+                    passed: true,
+                    exitCode: 0,
+                    stdout: this.truncateOutput(stdout),
+                    stderr: this.truncateOutput(stderr),
+                    durationMs,
+                }
+
+                return createSuccessResult(callId, result, Date.now() - startTime)
+            } catch (error) {
+                return this.handleExecError(
+                    { callId, runner, command, startTime },
+                    error,
+                    execStartTime,
+                )
+            }
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Detect which test runner is available in the project.
+     */
+    async detectTestRunner(projectRoot: string): Promise<TestRunner | null> {
+        const configRunner = await this.detectByConfigFile(projectRoot)
+        if (configRunner) {
+            return configRunner
+        }
+
+        return this.detectByPackageJson(projectRoot)
+    }
+
+    private async detectByConfigFile(projectRoot: string): Promise<TestRunner | null> {
+        const configFiles: { files: string[]; runner: TestRunner }[] = [
+            {
+                files: ["vitest.config.ts", "vitest.config.js", "vitest.config.mts"],
+                runner: "vitest",
+            },
+            {
+                files: ["jest.config.js", "jest.config.ts", "jest.config.json"],
+                runner: "jest",
+            },
+        ]
+
+        for (const { files, runner } of configFiles) {
+            for (const file of files) {
+                if (await this.hasFile(projectRoot, file)) {
+                    return runner
+                }
+            }
+        }
+        return null
+    }
+
+    private async detectByPackageJson(projectRoot: string): Promise<TestRunner | null> {
+        const packageJsonPath = path.join(projectRoot, "package.json")
+        try {
+            const content = await this.fsReadFile(packageJsonPath, "utf-8")
+            const pkg = JSON.parse(content) as {
+                scripts?: Record<string, string>
+                devDependencies?: Record<string, string>
+                dependencies?: Record<string, string>
+            }
+
+            const deps = { ...pkg.devDependencies, ...pkg.dependencies }
+            if (deps.vitest) {
+                return "vitest"
+            }
+            if (deps.jest) {
+                return "jest"
+            }
+            if (deps.mocha) {
+                return "mocha"
+            }
+            if (pkg.scripts?.test) {
+                return "npm"
+            }
+        } catch {
+            // package.json doesn't exist or is invalid
+        }
+        return null
+    }
+
+    /**
+     * Build the test command based on runner and options.
+     */
+    buildCommand(runner: TestRunner, testPath?: string, filter?: string, watch?: boolean): string {
+        const builders: Record<TestRunner, () => string[]> = {
+            vitest: () => this.buildVitestCommand(testPath, filter, watch),
+            jest: () => this.buildJestCommand(testPath, filter, watch),
+            mocha: () => this.buildMochaCommand(testPath, filter, watch),
+            npm: () => this.buildNpmCommand(testPath, filter),
+        }
+        return builders[runner]().join(" ")
+    }
+
+    private buildVitestCommand(testPath?: string, filter?: string, watch?: boolean): string[] {
+        const parts = ["npx vitest"]
+        if (!watch) {
+            parts.push("run")
+        }
+        if (testPath) {
+            parts.push(testPath)
+        }
+        if (filter) {
+            parts.push("-t", `"${filter}"`)
+        }
+        return parts
+    }
+
+    private buildJestCommand(testPath?: string, filter?: string, watch?: boolean): string[] {
+        const parts = ["npx jest"]
+        if (testPath) {
+            parts.push(testPath)
+        }
+        if (filter) {
+            parts.push("-t", `"${filter}"`)
+        }
+        if (watch) {
+            parts.push("--watch")
+        }
+        return parts
+    }
+
+    private buildMochaCommand(testPath?: string, filter?: string, watch?: boolean): string[] {
+        const parts = ["npx mocha"]
+        if (testPath) {
+            parts.push(testPath)
+        }
+        if (filter) {
+            parts.push("--grep", `"${filter}"`)
+        }
+        if (watch) {
+            parts.push("--watch")
+        }
+        return parts
+    }
+
+    private buildNpmCommand(testPath?: string, filter?: string): string[] {
+        const parts = ["npm test"]
+        if (testPath || filter) {
+            parts.push("--")
+            if (testPath) {
+                parts.push(testPath)
+            }
+            if (filter) {
+                parts.push(`"${filter}"`)
+            }
+        }
+        return parts
+    }
+
+    /**
+     * Check if a file exists.
+     */
+    private async hasFile(projectRoot: string, filename: string): Promise<boolean> {
+        try {
+            await this.fsAccess(path.join(projectRoot, filename))
+            return true
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Handle exec errors and return appropriate result.
+     */
+    private handleExecError(
+        ctx: { callId: string; runner: TestRunner; command: string; startTime: number },
+        error: unknown,
+        execStartTime: number,
+    ): ToolResult {
+        const { callId, runner, command, startTime } = ctx
+        const durationMs = Date.now() - execStartTime
+
+        if (this.isExecError(error)) {
+            const result: RunTestsResult = {
+                runner,
+                command,
+                passed: false,
+                exitCode: error.code ?? 1,
+                stdout: this.truncateOutput(error.stdout ?? ""),
+                stderr: this.truncateOutput(error.stderr ?? error.message),
+                durationMs,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        }
+
+        if (error instanceof Error) {
+            if (error.message.includes("ETIMEDOUT") || error.message.includes("timed out")) {
+                return createErrorResult(
+                    callId,
+                    `Tests timed out after ${String(DEFAULT_TIMEOUT / 1000)} seconds`,
+                    Date.now() - startTime,
+                )
+            }
+            return createErrorResult(callId, error.message, Date.now() - startTime)
+        }
+
+        return createErrorResult(callId, String(error), Date.now() - startTime)
+    }
+
+    /**
+     * Type guard for exec error.
+     */
+    private isExecError(
+        error: unknown,
+    ): error is Error & { code?: number; stdout?: string; stderr?: string } {
+        return error instanceof Error && "code" in error
+    }
+
+    /**
+     * Truncate output if too large.
+     */
+    private truncateOutput(output: string): string {
+        if (output.length <= MAX_OUTPUT_SIZE) {
+            return output
+        }
+        return `${output.slice(0, MAX_OUTPUT_SIZE)}\n... (output truncated)`
+    }
+}

packages/ipuaro/src/infrastructure/tools/run/index.ts

@@ -0,0 +1,12 @@
+// Run tools exports
+export {
+    CommandSecurity,
+    DEFAULT_BLACKLIST,
+    DEFAULT_WHITELIST,
+    type CommandClassification,
+    type SecurityCheckResult,
+} from "./CommandSecurity.js"
+
+export { RunCommandTool, type RunCommandResult } from "./RunCommandTool.js"
+
+export { RunTestsTool, type RunTestsResult, type TestRunner } from "./RunTestsTool.js"

packages/ipuaro/src/infrastructure/tools/search/FindDefinitionTool.ts

@@ -0,0 +1,221 @@
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import type { SymbolLocation } from "../../../domain/services/IStorage.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * A single definition location with context.
+ */
+export interface DefinitionLocation {
+    path: string
+    line: number
+    type: SymbolLocation["type"]
+    context: string
+}
+
+/**
+ * Result data from find_definition tool.
+ */
+export interface FindDefinitionResult {
+    symbol: string
+    found: boolean
+    definitions: DefinitionLocation[]
+    suggestions?: string[]
+}
+
+/**
+ * Tool for finding where a symbol is defined.
+ * Uses the SymbolIndex to locate definitions.
+ */
+export class FindDefinitionTool implements ITool {
+    readonly name = "find_definition"
+    readonly description =
+        "Find where a symbol is defined. " + "Returns file path, line number, and symbol type."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "symbol",
+            type: "string",
+            description: "Symbol name to find definition for",
+            required: true,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "search" as const
+
+    private readonly contextLines = 2
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.symbol !== "string" || params.symbol.trim() === "") {
+            return "Parameter 'symbol' is required and must be a non-empty string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const symbol = (params.symbol as string).trim()
+
+        try {
+            const symbolIndex = await ctx.storage.getSymbolIndex()
+            const locations = symbolIndex.get(symbol)
+
+            if (!locations || locations.length === 0) {
+                const suggestions = this.findSimilarSymbols(symbol, symbolIndex)
+                return createSuccessResult(
+                    callId,
+                    {
+                        symbol,
+                        found: false,
+                        definitions: [],
+                        suggestions: suggestions.length > 0 ? suggestions : undefined,
+                    } satisfies FindDefinitionResult,
+                    Date.now() - startTime,
+                )
+            }
+
+            const definitions: DefinitionLocation[] = []
+            for (const loc of locations) {
+                const context = await this.getContext(loc, ctx)
+                definitions.push({
+                    path: loc.path,
+                    line: loc.line,
+                    type: loc.type,
+                    context,
+                })
+            }
+
+            definitions.sort((a, b) => {
+                const pathCompare = a.path.localeCompare(b.path)
+                if (pathCompare !== 0) {
+                    return pathCompare
+                }
+                return a.line - b.line
+            })
+
+            const result: FindDefinitionResult = {
+                symbol,
+                found: true,
+                definitions,
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Get context lines around the definition.
+     */
+    private async getContext(loc: SymbolLocation, ctx: ToolContext): Promise<string> {
+        try {
+            const lines = await this.getFileLines(loc.path, ctx)
+            if (lines.length === 0) {
+                return ""
+            }
+
+            const lineIndex = loc.line - 1
+            const startIndex = Math.max(0, lineIndex - this.contextLines)
+            const endIndex = Math.min(lines.length - 1, lineIndex + this.contextLines)
+
+            const contextLines: string[] = []
+            for (let i = startIndex; i <= endIndex; i++) {
+                const lineNum = i + 1
+                const prefix = i === lineIndex ? ">" : " "
+                contextLines.push(`${prefix}${String(lineNum).padStart(4)}│${lines[i]}`)
+            }
+
+            return contextLines.join("\n")
+        } catch {
+            return ""
+        }
+    }
+
+    /**
+     * Get file lines from storage or filesystem.
+     */
+    private async getFileLines(relativePath: string, ctx: ToolContext): Promise<string[]> {
+        const fileData = await ctx.storage.getFile(relativePath)
+        if (fileData) {
+            return fileData.lines
+        }
+
+        const absolutePath = path.resolve(ctx.projectRoot, relativePath)
+        try {
+            const content = await fs.readFile(absolutePath, "utf-8")
+            return content.split("\n")
+        } catch {
+            return []
+        }
+    }
+
+    /**
+     * Find similar symbol names for suggestions.
+     */
+    private findSimilarSymbols(symbol: string, symbolIndex: Map<string, unknown>): string[] {
+        const suggestions: string[] = []
+        const lowerSymbol = symbol.toLowerCase()
+        const maxSuggestions = 5
+
+        for (const name of symbolIndex.keys()) {
+            if (suggestions.length >= maxSuggestions) {
+                break
+            }
+
+            const lowerName = name.toLowerCase()
+            if (lowerName.includes(lowerSymbol) || lowerSymbol.includes(lowerName)) {
+                suggestions.push(name)
+            } else if (this.levenshteinDistance(lowerSymbol, lowerName) <= 2) {
+                suggestions.push(name)
+            }
+        }
+
+        return suggestions.sort()
+    }
+
+    /**
+     * Calculate Levenshtein distance between two strings.
+     */
+    private levenshteinDistance(a: string, b: string): number {
+        if (a.length === 0) {
+            return b.length
+        }
+        if (b.length === 0) {
+            return a.length
+        }
+
+        const matrix: number[][] = []
+
+        for (let i = 0; i <= b.length; i++) {
+            matrix[i] = [i]
+        }
+        for (let j = 0; j <= a.length; j++) {
+            matrix[0][j] = j
+        }
+
+        for (let i = 1; i <= b.length; i++) {
+            for (let j = 1; j <= a.length; j++) {
+                if (b.charAt(i - 1) === a.charAt(j - 1)) {
+                    matrix[i][j] = matrix[i - 1][j - 1]
+                } else {
+                    matrix[i][j] = Math.min(
+                        matrix[i - 1][j - 1] + 1,
+                        matrix[i][j - 1] + 1,
+                        matrix[i - 1][j] + 1,
+                    )
+                }
+            }
+        }
+
+        return matrix[b.length][a.length]
+    }
+}

packages/ipuaro/src/infrastructure/tools/search/FindReferencesTool.ts

@@ -0,0 +1,260 @@
+import * as path from "node:path"
+import type { ITool, ToolContext, ToolParameterSchema } from "../../../domain/services/ITool.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.js"
+
+/**
+ * A single reference to a symbol.
+ */
+export interface SymbolReference {
+    path: string
+    line: number
+    column: number
+    context: string
+    isDefinition: boolean
+}
+
+/**
+ * Result data from find_references tool.
+ */
+export interface FindReferencesResult {
+    symbol: string
+    totalReferences: number
+    files: number
+    references: SymbolReference[]
+    definitionLocations: {
+        path: string
+        line: number
+        type: string
+    }[]
+}
+
+/**
+ * Tool for finding all usages of a symbol across the codebase.
+ * Searches through indexed files for symbol references.
+ */
+export class FindReferencesTool implements ITool {
+    readonly name = "find_references"
+    readonly description =
+        "Find all usages of a symbol across the codebase. " +
+        "Returns list of file paths, line numbers, and context."
+    readonly parameters: ToolParameterSchema[] = [
+        {
+            name: "symbol",
+            type: "string",
+            description: "Symbol name to search for (function, class, variable, etc.)",
+            required: true,
+        },
+        {
+            name: "path",
+            type: "string",
+            description: "Limit search to specific file or directory",
+            required: false,
+        },
+    ]
+    readonly requiresConfirmation = false
+    readonly category = "search" as const
+
+    private readonly contextLines = 1
+
+    validateParams(params: Record<string, unknown>): string | null {
+        if (typeof params.symbol !== "string" || params.symbol.trim() === "") {
+            return "Parameter 'symbol' is required and must be a non-empty string"
+        }
+
+        if (params.path !== undefined && typeof params.path !== "string") {
+            return "Parameter 'path' must be a string"
+        }
+
+        return null
+    }
+
+    async execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult> {
+        const startTime = Date.now()
+        const callId = `${this.name}-${String(startTime)}`
+
+        const symbol = (params.symbol as string).trim()
+        const filterPath = params.path as string | undefined
+
+        try {
+            const symbolIndex = await ctx.storage.getSymbolIndex()
+            const definitionLocations = symbolIndex.get(symbol) ?? []
+
+            const allFiles = await ctx.storage.getAllFiles()
+            const filesToSearch = this.filterFiles(allFiles, filterPath, ctx.projectRoot)
+
+            if (filesToSearch.size === 0) {
+                return createSuccessResult(
+                    callId,
+                    {
+                        symbol,
+                        totalReferences: 0,
+                        files: 0,
+                        references: [],
+                        definitionLocations: definitionLocations.map((loc) => ({
+                            path: loc.path,
+                            line: loc.line,
+                            type: loc.type,
+                        })),
+                    } satisfies FindReferencesResult,
+                    Date.now() - startTime,
+                )
+            }
+
+            const references: SymbolReference[] = []
+            const filesWithReferences = new Set<string>()
+
+            for (const [filePath, fileData] of filesToSearch) {
+                const fileRefs = this.findReferencesInFile(
+                    filePath,
+                    fileData.lines,
+                    symbol,
+                    definitionLocations,
+                )
+
+                if (fileRefs.length > 0) {
+                    filesWithReferences.add(filePath)
+                    references.push(...fileRefs)
+                }
+            }
+
+            references.sort((a, b) => {
+                const pathCompare = a.path.localeCompare(b.path)
+                if (pathCompare !== 0) {
+                    return pathCompare
+                }
+                return a.line - b.line
+            })
+
+            const result: FindReferencesResult = {
+                symbol,
+                totalReferences: references.length,
+                files: filesWithReferences.size,
+                references,
+                definitionLocations: definitionLocations.map((loc) => ({
+                    path: loc.path,
+                    line: loc.line,
+                    type: loc.type,
+                })),
+            }
+
+            return createSuccessResult(callId, result, Date.now() - startTime)
+        } catch (error) {
+            const message = error instanceof Error ? error.message : String(error)
+            return createErrorResult(callId, message, Date.now() - startTime)
+        }
+    }
+
+    /**
+     * Filter files by path prefix if specified.
+     */
+    private filterFiles(
+        allFiles: Map<string, { lines: string[] }>,
+        filterPath: string | undefined,
+        projectRoot: string,
+    ): Map<string, { lines: string[] }> {
+        if (!filterPath) {
+            return allFiles
+        }
+
+        const normalizedFilter = filterPath.startsWith("/")
+            ? path.relative(projectRoot, filterPath)
+            : filterPath
+
+        const filtered = new Map<string, { lines: string[] }>()
+        for (const [filePath, fileData] of allFiles) {
+            if (filePath === normalizedFilter || filePath.startsWith(`${normalizedFilter}/`)) {
+                filtered.set(filePath, fileData)
+            }
+        }
+
+        return filtered
+    }
+
+    /**
+     * Find all references to the symbol in a file.
+     */
+    private findReferencesInFile(
+        filePath: string,
+        lines: string[],
+        symbol: string,
+        definitionLocations: { path: string; line: number }[],
+    ): SymbolReference[] {
+        const references: SymbolReference[] = []
+        const symbolRegex = this.createSymbolRegex(symbol)
+
+        for (let lineIndex = 0; lineIndex < lines.length; lineIndex++) {
+            const line = lines[lineIndex]
+            const lineNumber = lineIndex + 1
+            let match: RegExpExecArray | null
+
+            symbolRegex.lastIndex = 0
+            while ((match = symbolRegex.exec(line)) !== null) {
+                const column = match.index + 1
+                const context = this.buildContext(lines, lineIndex)
+                const isDefinition = this.isDefinitionLine(
+                    filePath,
+                    lineNumber,
+                    definitionLocations,
+                )
+
+                references.push({
+                    path: filePath,
+                    line: lineNumber,
+                    column,
+                    context,
+                    isDefinition,
+                })
+            }
+        }
+
+        return references
+    }
+
+    /**
+     * Create a regex for matching the symbol with appropriate boundaries.
+     * Handles symbols that start or end with non-word characters (like $value).
+     */
+    private createSymbolRegex(symbol: string): RegExp {
+        const escaped = symbol.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")
+
+        const startsWithWordChar = /^\w/.test(symbol)
+        const endsWithWordChar = /\w$/.test(symbol)
+
+        const prefix = startsWithWordChar ? "\\b" : "(?<![\\w$])"
+        const suffix = endsWithWordChar ? "\\b" : "(?![\\w$])"
+
+        return new RegExp(`${prefix}${escaped}${suffix}`, "g")
+    }
+
+    /**
+     * Build context string with surrounding lines.
+     */
+    private buildContext(lines: string[], currentIndex: number): string {
+        const startIndex = Math.max(0, currentIndex - this.contextLines)
+        const endIndex = Math.min(lines.length - 1, currentIndex + this.contextLines)
+
+        const contextLines: string[] = []
+        for (let i = startIndex; i <= endIndex; i++) {
+            const lineNum = i + 1
+            const prefix = i === currentIndex ? ">" : " "
+            contextLines.push(`${prefix}${String(lineNum).padStart(4)}│${lines[i]}`)
+        }
+
+        return contextLines.join("\n")
+    }
+
+    /**
+     * Check if this line is a definition location.
+     */
+    private isDefinitionLine(
+        filePath: string,
+        lineNumber: number,
+        definitionLocations: { path: string; line: number }[],
+    ): boolean {
+        return definitionLocations.some((loc) => loc.path === filePath && loc.line === lineNumber)
+    }
+}

packages/ipuaro/src/infrastructure/tools/search/index.ts

@@ -0,0 +1,12 @@
+// Search tools exports
+export {
+    FindReferencesTool,
+    type FindReferencesResult,
+    type SymbolReference,
+} from "./FindReferencesTool.js"
+
+export {
+    FindDefinitionTool,
+    type FindDefinitionResult,
+    type DefinitionLocation,
+} from "./FindDefinitionTool.js"

packages/ipuaro/src/tui/App.tsx

@@ -0,0 +1,167 @@
+/**
+ * Main TUI App component.
+ * Orchestrates the terminal user interface.
+ */
+
+import { Box, Text, useApp } from "ink"
+import React, { useCallback, useEffect, useState } from "react"
+import type { ILLMClient } from "../domain/services/ILLMClient.js"
+import type { ISessionStorage } from "../domain/services/ISessionStorage.js"
+import type { IStorage } from "../domain/services/IStorage.js"
+import type { DiffInfo } from "../domain/services/ITool.js"
+import type { ErrorChoice } from "../shared/types/index.js"
+import type { IToolRegistry } from "../application/interfaces/IToolRegistry.js"
+import type { ProjectStructure } from "../infrastructure/llm/prompts.js"
+import { Chat, Input, StatusBar } from "./components/index.js"
+import { useHotkeys, useSession } from "./hooks/index.js"
+import type { AppProps, BranchInfo } from "./types.js"
+
+export interface AppDependencies {
+    storage: IStorage
+    sessionStorage: ISessionStorage
+    llm: ILLMClient
+    tools: IToolRegistry
+    projectStructure?: ProjectStructure
+}
+
+export interface ExtendedAppProps extends AppProps {
+    deps: AppDependencies
+    onExit?: () => void
+}
+
+function LoadingScreen(): React.JSX.Element {
+    return (
+        <Box flexDirection="column" padding={1}>
+            <Text color="cyan">Loading session...</Text>
+        </Box>
+    )
+}
+
+function ErrorScreen({ error }: { error: Error }): React.JSX.Element {
+    return (
+        <Box flexDirection="column" padding={1}>
+            <Text color="red" bold>
+                Error
+            </Text>
+            <Text color="red">{error.message}</Text>
+        </Box>
+    )
+}
+
+async function handleConfirmationDefault(_message: string, _diff?: DiffInfo): Promise<boolean> {
+    return Promise.resolve(true)
+}
+
+async function handleErrorDefault(_error: Error): Promise<ErrorChoice> {
+    return Promise.resolve("skip")
+}
+
+export function App({
+    projectPath,
+    autoApply = false,
+    deps,
+    onExit,
+}: ExtendedAppProps): React.JSX.Element {
+    const { exit } = useApp()
+
+    const [branch] = useState<BranchInfo>({ name: "main", isDetached: false })
+    const [sessionTime, setSessionTime] = useState("0m")
+
+    const projectName = projectPath.split("/").pop() ?? "unknown"
+
+    const { session, messages, status, isLoading, error, sendMessage, undo, abort } = useSession(
+        {
+            storage: deps.storage,
+            sessionStorage: deps.sessionStorage,
+            llm: deps.llm,
+            tools: deps.tools,
+            projectRoot: projectPath,
+            projectName,
+            projectStructure: deps.projectStructure,
+        },
+        {
+            autoApply,
+            onConfirmation: handleConfirmationDefault,
+            onError: handleErrorDefault,
+        },
+    )
+
+    const handleExit = useCallback((): void => {
+        onExit?.()
+        exit()
+    }, [exit, onExit])
+
+    const handleInterrupt = useCallback((): void => {
+        if (status === "thinking" || status === "tool_call") {
+            abort()
+        }
+    }, [status, abort])
+
+    const handleUndo = useCallback((): void => {
+        void undo()
+    }, [undo])
+
+    useHotkeys(
+        {
+            onInterrupt: handleInterrupt,
+            onExit: handleExit,
+            onUndo: handleUndo,
+        },
+        { enabled: !isLoading },
+    )
+
+    useEffect(() => {
+        if (!session) {
+            return
+        }
+
+        const interval = setInterval(() => {
+            setSessionTime(session.getSessionDurationFormatted())
+        }, 60_000)
+
+        setSessionTime(session.getSessionDurationFormatted())
+
+        return (): void => {
+            clearInterval(interval)
+        }
+    }, [session])
+
+    const handleSubmit = useCallback(
+        (text: string): void => {
+            if (text.startsWith("/")) {
+                return
+            }
+            void sendMessage(text)
+        },
+        [sendMessage],
+    )
+
+    if (isLoading) {
+        return <LoadingScreen />
+    }
+
+    if (error) {
+        return <ErrorScreen error={error} />
+    }
+
+    const isInputDisabled = status === "thinking" || status === "tool_call"
+
+    return (
+        <Box flexDirection="column" height="100%">
+            <StatusBar
+                contextUsage={session?.context.tokenUsage ?? 0}
+                projectName={projectName}
+                branch={branch}
+                sessionTime={sessionTime}
+                status={status}
+            />
+            <Chat messages={messages} isThinking={status === "thinking"} />
+            <Input
+                onSubmit={handleSubmit}
+                history={session?.inputHistory ?? []}
+                disabled={isInputDisabled}
+                placeholder={isInputDisabled ? "Processing..." : "Type a message..."}
+            />
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/Chat.tsx

@@ -0,0 +1,170 @@
+/**
+ * Chat component for TUI.
+ * Displays message history with tool calls and stats.
+ */
+
+import { Box, Text } from "ink"
+import type React from "react"
+import type { ChatMessage } from "../../domain/value-objects/ChatMessage.js"
+import type { ToolCall } from "../../domain/value-objects/ToolCall.js"
+
+export interface ChatProps {
+    messages: ChatMessage[]
+    isThinking: boolean
+}
+
+function formatTimestamp(timestamp: number): string {
+    const date = new Date(timestamp)
+    const hours = String(date.getHours()).padStart(2, "0")
+    const minutes = String(date.getMinutes()).padStart(2, "0")
+    return `${hours}:${minutes}`
+}
+
+function formatStats(stats: ChatMessage["stats"]): string {
+    if (!stats) {
+        return ""
+    }
+    const time = (stats.timeMs / 1000).toFixed(1)
+    const tokens = stats.tokens.toLocaleString()
+    const tools = stats.toolCalls
+
+    const parts = [`${time}s`, `${tokens} tokens`]
+    if (tools > 0) {
+        parts.push(`${String(tools)} tool${tools > 1 ? "s" : ""}`)
+    }
+    return parts.join(" | ")
+}
+
+function formatToolCall(call: ToolCall): string {
+    const params = Object.entries(call.params)
+        .map(([k, v]) => `${k}=${JSON.stringify(v)}`)
+        .join(" ")
+    return `[${call.name} ${params}]`
+}
+
+function UserMessage({ message }: { message: ChatMessage }): React.JSX.Element {
+    return (
+        <Box flexDirection="column" marginBottom={1}>
+            <Box gap={1}>
+                <Text color="green" bold>
+                    You
+                </Text>
+                <Text color="gray" dimColor>
+                    {formatTimestamp(message.timestamp)}
+                </Text>
+            </Box>
+            <Box marginLeft={2}>
+                <Text>{message.content}</Text>
+            </Box>
+        </Box>
+    )
+}
+
+function AssistantMessage({ message }: { message: ChatMessage }): React.JSX.Element {
+    const stats = formatStats(message.stats)
+
+    return (
+        <Box flexDirection="column" marginBottom={1}>
+            <Box gap={1}>
+                <Text color="cyan" bold>
+                    Assistant
+                </Text>
+                <Text color="gray" dimColor>
+                    {formatTimestamp(message.timestamp)}
+                </Text>
+            </Box>
+
+            {message.toolCalls && message.toolCalls.length > 0 && (
+                <Box flexDirection="column" marginLeft={2} marginBottom={1}>
+                    {message.toolCalls.map((call) => (
+                        <Text key={call.id} color="yellow">
+                            {formatToolCall(call)}
+                        </Text>
+                    ))}
+                </Box>
+            )}
+
+            {message.content && (
+                <Box marginLeft={2}>
+                    <Text>{message.content}</Text>
+                </Box>
+            )}
+
+            {stats && (
+                <Box marginLeft={2} marginTop={1}>
+                    <Text color="gray" dimColor>
+                        {stats}
+                    </Text>
+                </Box>
+            )}
+        </Box>
+    )
+}
+
+function ToolMessage({ message }: { message: ChatMessage }): React.JSX.Element {
+    return (
+        <Box flexDirection="column" marginBottom={1} marginLeft={2}>
+            {message.toolResults?.map((result) => (
+                <Box key={result.callId} flexDirection="column">
+                    <Text color={result.success ? "green" : "red"}>
+                        {result.success ? "+" : "x"} {result.callId.slice(0, 8)}
+                    </Text>
+                </Box>
+            ))}
+        </Box>
+    )
+}
+
+function SystemMessage({ message }: { message: ChatMessage }): React.JSX.Element {
+    const isError = message.content.toLowerCase().startsWith("error")
+
+    return (
+        <Box marginBottom={1} marginLeft={2}>
+            <Text color={isError ? "red" : "gray"} dimColor={!isError}>
+                {message.content}
+            </Text>
+        </Box>
+    )
+}
+
+function MessageComponent({ message }: { message: ChatMessage }): React.JSX.Element {
+    switch (message.role) {
+        case "user": {
+            return <UserMessage message={message} />
+        }
+        case "assistant": {
+            return <AssistantMessage message={message} />
+        }
+        case "tool": {
+            return <ToolMessage message={message} />
+        }
+        case "system": {
+            return <SystemMessage message={message} />
+        }
+        default: {
+            return <></>
+        }
+    }
+}
+
+function ThinkingIndicator(): React.JSX.Element {
+    return (
+        <Box marginBottom={1}>
+            <Text color="yellow">Thinking...</Text>
+        </Box>
+    )
+}
+
+export function Chat({ messages, isThinking }: ChatProps): React.JSX.Element {
+    return (
+        <Box flexDirection="column" flexGrow={1} paddingX={1}>
+            {messages.map((message, index) => (
+                <MessageComponent
+                    key={`${String(message.timestamp)}-${String(index)}`}
+                    message={message}
+                />
+            ))}
+            {isThinking && <ThinkingIndicator />}
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/ConfirmDialog.tsx

@@ -0,0 +1,83 @@
+/**
+ * ConfirmDialog component for TUI.
+ * Displays a confirmation dialog with [Y] Apply / [N] Cancel / [E] Edit options.
+ */
+
+import { Box, Text, useInput } from "ink"
+import React, { useState } from "react"
+import type { ConfirmChoice } from "../../shared/types/index.js"
+import { DiffView, type DiffViewProps } from "./DiffView.js"
+
+export interface ConfirmDialogProps {
+    message: string
+    diff?: DiffViewProps
+    onSelect: (choice: ConfirmChoice) => void
+}
+
+function ChoiceButton({
+    hotkey,
+    label,
+    isSelected,
+}: {
+    hotkey: string
+    label: string
+    isSelected: boolean
+}): React.JSX.Element {
+    return (
+        <Box>
+            <Text color={isSelected ? "cyan" : "gray"}>
+                [<Text bold>{hotkey}</Text>] {label}
+            </Text>
+        </Box>
+    )
+}
+
+export function ConfirmDialog({ message, diff, onSelect }: ConfirmDialogProps): React.JSX.Element {
+    const [selected, setSelected] = useState<ConfirmChoice | null>(null)
+
+    useInput((input, key) => {
+        const lowerInput = input.toLowerCase()
+
+        if (lowerInput === "y") {
+            setSelected("apply")
+            onSelect("apply")
+        } else if (lowerInput === "n") {
+            setSelected("cancel")
+            onSelect("cancel")
+        } else if (lowerInput === "e") {
+            setSelected("edit")
+            onSelect("edit")
+        } else if (key.escape) {
+            setSelected("cancel")
+            onSelect("cancel")
+        }
+    })
+
+    return (
+        <Box
+            flexDirection="column"
+            borderStyle="round"
+            borderColor="yellow"
+            paddingX={1}
+            paddingY={1}
+        >
+            <Box marginBottom={1}>
+                <Text color="yellow" bold>
+                    ⚠ {message}
+                </Text>
+            </Box>
+
+            {diff && (
+                <Box marginBottom={1}>
+                    <DiffView {...diff} />
+                </Box>
+            )}
+
+            <Box gap={2}>
+                <ChoiceButton hotkey="Y" label="Apply" isSelected={selected === "apply"} />
+                <ChoiceButton hotkey="N" label="Cancel" isSelected={selected === "cancel"} />
+                <ChoiceButton hotkey="E" label="Edit" isSelected={selected === "edit"} />
+            </Box>
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/DiffView.tsx

@@ -0,0 +1,193 @@
+/**
+ * DiffView component for TUI.
+ * Displays inline diff with green (added) and red (removed) highlighting.
+ */
+
+import { Box, Text } from "ink"
+import type React from "react"
+
+export interface DiffViewProps {
+    filePath: string
+    oldLines: string[]
+    newLines: string[]
+    startLine: number
+}
+
+interface DiffLine {
+    type: "add" | "remove" | "context"
+    content: string
+    lineNumber?: number
+}
+
+function computeDiff(oldLines: string[], newLines: string[], startLine: number): DiffLine[] {
+    const result: DiffLine[] = []
+
+    let oldIdx = 0
+    let newIdx = 0
+
+    while (oldIdx < oldLines.length || newIdx < newLines.length) {
+        const oldLine = oldIdx < oldLines.length ? oldLines[oldIdx] : undefined
+        const newLine = newIdx < newLines.length ? newLines[newIdx] : undefined
+
+        if (oldLine === newLine) {
+            result.push({
+                type: "context",
+                content: oldLine ?? "",
+                lineNumber: startLine + newIdx,
+            })
+            oldIdx++
+            newIdx++
+        } else {
+            if (oldLine !== undefined) {
+                result.push({
+                    type: "remove",
+                    content: oldLine,
+                })
+                oldIdx++
+            }
+            if (newLine !== undefined) {
+                result.push({
+                    type: "add",
+                    content: newLine,
+                    lineNumber: startLine + newIdx,
+                })
+                newIdx++
+            }
+        }
+    }
+
+    return result
+}
+
+function getLinePrefix(line: DiffLine): string {
+    switch (line.type) {
+        case "add": {
+            return "+"
+        }
+        case "remove": {
+            return "-"
+        }
+        case "context": {
+            return " "
+        }
+    }
+}
+
+function getLineColor(line: DiffLine): string {
+    switch (line.type) {
+        case "add": {
+            return "green"
+        }
+        case "remove": {
+            return "red"
+        }
+        case "context": {
+            return "gray"
+        }
+    }
+}
+
+function formatLineNumber(num: number | undefined, width: number): string {
+    if (num === undefined) {
+        return " ".repeat(width)
+    }
+    return String(num).padStart(width, " ")
+}
+
+function DiffLine({
+    line,
+    lineNumberWidth,
+}: {
+    line: DiffLine
+    lineNumberWidth: number
+}): React.JSX.Element {
+    const prefix = getLinePrefix(line)
+    const color = getLineColor(line)
+    const lineNum = formatLineNumber(line.lineNumber, lineNumberWidth)
+
+    return (
+        <Box>
+            <Text color="gray">{lineNum} </Text>
+            <Text color={color}>
+                {prefix} {line.content}
+            </Text>
+        </Box>
+    )
+}
+
+function DiffHeader({
+    filePath,
+    startLine,
+    endLine,
+}: {
+    filePath: string
+    startLine: number
+    endLine: number
+}): React.JSX.Element {
+    const lineRange =
+        startLine === endLine
+            ? `line ${String(startLine)}`
+            : `lines ${String(startLine)}-${String(endLine)}`
+
+    return (
+        <Box>
+            <Text color="gray">┌─── </Text>
+            <Text color="cyan">{filePath}</Text>
+            <Text color="gray"> ({lineRange}) ───┐</Text>
+        </Box>
+    )
+}
+
+function DiffFooter(): React.JSX.Element {
+    return (
+        <Box>
+            <Text color="gray">└───────────────────────────────────────┘</Text>
+        </Box>
+    )
+}
+
+function DiffStats({
+    additions,
+    deletions,
+}: {
+    additions: number
+    deletions: number
+}): React.JSX.Element {
+    return (
+        <Box gap={1} marginTop={1}>
+            <Text color="green">+{String(additions)}</Text>
+            <Text color="red">-{String(deletions)}</Text>
+        </Box>
+    )
+}
+
+export function DiffView({
+    filePath,
+    oldLines,
+    newLines,
+    startLine,
+}: DiffViewProps): React.JSX.Element {
+    const diffLines = computeDiff(oldLines, newLines, startLine)
+    const endLine = startLine + newLines.length - 1
+    const lineNumberWidth = String(endLine).length
+
+    const additions = diffLines.filter((l) => l.type === "add").length
+    const deletions = diffLines.filter((l) => l.type === "remove").length
+
+    return (
+        <Box flexDirection="column" paddingX={1}>
+            <DiffHeader filePath={filePath} startLine={startLine} endLine={endLine} />
+            <Box flexDirection="column" paddingX={1}>
+                {diffLines.map((line, index) => (
+                    <DiffLine
+                        key={`${line.type}-${String(index)}`}
+                        line={line}
+                        lineNumberWidth={lineNumberWidth}
+                    />
+                ))}
+            </Box>
+            <DiffFooter />
+            <DiffStats additions={additions} deletions={deletions} />
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/ErrorDialog.tsx

@@ -0,0 +1,105 @@
+/**
+ * ErrorDialog component for TUI.
+ * Displays an error with [R] Retry / [S] Skip / [A] Abort options.
+ */
+
+import { Box, Text, useInput } from "ink"
+import React, { useState } from "react"
+import type { ErrorChoice } from "../../shared/types/index.js"
+
+export interface ErrorInfo {
+    type: string
+    message: string
+    recoverable: boolean
+}
+
+export interface ErrorDialogProps {
+    error: ErrorInfo
+    onChoice: (choice: ErrorChoice) => void
+}
+
+function ChoiceButton({
+    hotkey,
+    label,
+    isSelected,
+    disabled,
+}: {
+    hotkey: string
+    label: string
+    isSelected: boolean
+    disabled?: boolean
+}): React.JSX.Element {
+    if (disabled) {
+        return (
+            <Box>
+                <Text color="gray" dimColor>
+                    [{hotkey}] {label}
+                </Text>
+            </Box>
+        )
+    }
+
+    return (
+        <Box>
+            <Text color={isSelected ? "cyan" : "gray"}>
+                [<Text bold>{hotkey}</Text>] {label}
+            </Text>
+        </Box>
+    )
+}
+
+export function ErrorDialog({ error, onChoice }: ErrorDialogProps): React.JSX.Element {
+    const [selected, setSelected] = useState<ErrorChoice | null>(null)
+
+    useInput((input, key) => {
+        const lowerInput = input.toLowerCase()
+
+        if (lowerInput === "r" && error.recoverable) {
+            setSelected("retry")
+            onChoice("retry")
+        } else if (lowerInput === "s" && error.recoverable) {
+            setSelected("skip")
+            onChoice("skip")
+        } else if (lowerInput === "a") {
+            setSelected("abort")
+            onChoice("abort")
+        } else if (key.escape) {
+            setSelected("abort")
+            onChoice("abort")
+        }
+    })
+
+    return (
+        <Box flexDirection="column" borderStyle="round" borderColor="red" paddingX={1} paddingY={1}>
+            <Box marginBottom={1}>
+                <Text color="red" bold>
+                    x {error.type}: {error.message}
+                </Text>
+            </Box>
+
+            <Box gap={2}>
+                <ChoiceButton
+                    hotkey="R"
+                    label="Retry"
+                    isSelected={selected === "retry"}
+                    disabled={!error.recoverable}
+                />
+                <ChoiceButton
+                    hotkey="S"
+                    label="Skip"
+                    isSelected={selected === "skip"}
+                    disabled={!error.recoverable}
+                />
+                <ChoiceButton hotkey="A" label="Abort" isSelected={selected === "abort"} />
+            </Box>
+
+            {!error.recoverable && (
+                <Box marginTop={1}>
+                    <Text color="gray" dimColor>
+                        This error is not recoverable. Press [A] to abort.
+                    </Text>
+                </Box>
+            )}
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/Input.tsx

@@ -0,0 +1,99 @@
+/**
+ * Input component for TUI.
+ * Prompt with history navigation (up/down) and path autocomplete (tab).
+ */
+
+import { Box, Text, useInput } from "ink"
+import TextInput from "ink-text-input"
+import React, { useCallback, useState } from "react"
+
+export interface InputProps {
+    onSubmit: (text: string) => void
+    history: string[]
+    disabled: boolean
+    placeholder?: string
+}
+
+export function Input({
+    onSubmit,
+    history,
+    disabled,
+    placeholder = "Type a message...",
+}: InputProps): React.JSX.Element {
+    const [value, setValue] = useState("")
+    const [historyIndex, setHistoryIndex] = useState(-1)
+    const [savedInput, setSavedInput] = useState("")
+
+    const handleChange = useCallback((newValue: string) => {
+        setValue(newValue)
+        setHistoryIndex(-1)
+    }, [])
+
+    const handleSubmit = useCallback(
+        (text: string) => {
+            if (disabled || !text.trim()) {
+                return
+            }
+            onSubmit(text)
+            setValue("")
+            setHistoryIndex(-1)
+            setSavedInput("")
+        },
+        [disabled, onSubmit],
+    )
+
+    useInput(
+        (input, key) => {
+            if (disabled) {
+                return
+            }
+
+            if (key.upArrow && history.length > 0) {
+                if (historyIndex === -1) {
+                    setSavedInput(value)
+                }
+
+                const newIndex =
+                    historyIndex === -1 ? history.length - 1 : Math.max(0, historyIndex - 1)
+                setHistoryIndex(newIndex)
+                setValue(history[newIndex] ?? "")
+            }
+
+            if (key.downArrow) {
+                if (historyIndex === -1) {
+                    return
+                }
+
+                if (historyIndex >= history.length - 1) {
+                    setHistoryIndex(-1)
+                    setValue(savedInput)
+                } else {
+                    const newIndex = historyIndex + 1
+                    setHistoryIndex(newIndex)
+                    setValue(history[newIndex] ?? "")
+                }
+            }
+        },
+        { isActive: !disabled },
+    )
+
+    return (
+        <Box borderStyle="single" borderColor={disabled ? "gray" : "cyan"} paddingX={1}>
+            <Text color={disabled ? "gray" : "green"} bold>
+                {">"}{" "}
+            </Text>
+            {disabled ? (
+                <Text color="gray" dimColor>
+                    {placeholder}
+                </Text>
+            ) : (
+                <TextInput
+                    value={value}
+                    onChange={handleChange}
+                    onSubmit={handleSubmit}
+                    placeholder={placeholder}
+                />
+            )}
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/Progress.tsx

@@ -0,0 +1,62 @@
+/**
+ * Progress component for TUI.
+ * Displays a progress bar: [=====>    ] 45% (120/267 files)
+ */
+
+import { Box, Text } from "ink"
+import type React from "react"
+
+export interface ProgressProps {
+    current: number
+    total: number
+    label: string
+    width?: number
+}
+
+function calculatePercentage(current: number, total: number): number {
+    if (total === 0) {
+        return 0
+    }
+    return Math.min(100, Math.round((current / total) * 100))
+}
+
+function createProgressBar(percentage: number, width: number): { filled: string; empty: string } {
+    const filledWidth = Math.round((percentage / 100) * width)
+    const emptyWidth = width - filledWidth
+
+    const filled = "=".repeat(Math.max(0, filledWidth - 1)) + (filledWidth > 0 ? ">" : "")
+    const empty = " ".repeat(Math.max(0, emptyWidth))
+
+    return { filled, empty }
+}
+
+function getProgressColor(percentage: number): string {
+    if (percentage >= 100) {
+        return "green"
+    }
+    if (percentage >= 50) {
+        return "yellow"
+    }
+    return "cyan"
+}
+
+export function Progress({ current, total, label, width = 30 }: ProgressProps): React.JSX.Element {
+    const percentage = calculatePercentage(current, total)
+    const { filled, empty } = createProgressBar(percentage, width)
+    const color = getProgressColor(percentage)
+
+    return (
+        <Box gap={1}>
+            <Text color="gray">[</Text>
+            <Text color={color}>{filled}</Text>
+            <Text color="gray">{empty}</Text>
+            <Text color="gray">]</Text>
+            <Text color={color} bold>
+                {String(percentage)}%
+            </Text>
+            <Text color="gray">
+                ({String(current)}/{String(total)} {label})
+            </Text>
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/StatusBar.tsx

@@ -0,0 +1,81 @@
+/**
+ * StatusBar component for TUI.
+ * Displays: [ipuaro] [ctx: 12%] [project: myapp] [main] [47m] status
+ */
+
+import { Box, Text } from "ink"
+import type React from "react"
+import type { BranchInfo, TuiStatus } from "../types.js"
+
+export interface StatusBarProps {
+    contextUsage: number
+    projectName: string
+    branch: BranchInfo
+    sessionTime: string
+    status: TuiStatus
+}
+
+function getStatusIndicator(status: TuiStatus): { text: string; color: string } {
+    switch (status) {
+        case "ready": {
+            return { text: "ready", color: "green" }
+        }
+        case "thinking": {
+            return { text: "thinking...", color: "yellow" }
+        }
+        case "tool_call": {
+            return { text: "executing...", color: "cyan" }
+        }
+        case "awaiting_confirmation": {
+            return { text: "confirm?", color: "magenta" }
+        }
+        case "error": {
+            return { text: "error", color: "red" }
+        }
+        default: {
+            return { text: "ready", color: "green" }
+        }
+    }
+}
+
+function formatContextUsage(usage: number): string {
+    return `${String(Math.round(usage * 100))}%`
+}
+
+export function StatusBar({
+    contextUsage,
+    projectName,
+    branch,
+    sessionTime,
+    status,
+}: StatusBarProps): React.JSX.Element {
+    const statusIndicator = getStatusIndicator(status)
+    const branchDisplay = branch.isDetached ? `HEAD@${branch.name.slice(0, 7)}` : branch.name
+
+    return (
+        <Box borderStyle="single" borderColor="gray" paddingX={1} justifyContent="space-between">
+            <Box gap={1}>
+                <Text color="cyan" bold>
+                    [ipuaro]
+                </Text>
+                <Text color="gray">
+                    [ctx:{" "}
+                    <Text color={contextUsage > 0.8 ? "red" : "white"}>
+                        {formatContextUsage(contextUsage)}
+                    </Text>
+                    ]
+                </Text>
+                <Text color="gray">
+                    [<Text color="blue">{projectName}</Text>]
+                </Text>
+                <Text color="gray">
+                    [<Text color="green">{branchDisplay}</Text>]
+                </Text>
+                <Text color="gray">
+                    [<Text color="white">{sessionTime}</Text>]
+                </Text>
+            </Box>
+            <Text color={statusIndicator.color}>{statusIndicator.text}</Text>
+        </Box>
+    )
+}

packages/ipuaro/src/tui/components/index.ts

@@ -0,0 +1,11 @@
+/**
+ * TUI components.
+ */
+
+export { StatusBar, type StatusBarProps } from "./StatusBar.js"
+export { Chat, type ChatProps } from "./Chat.js"
+export { Input, type InputProps } from "./Input.js"
+export { DiffView, type DiffViewProps } from "./DiffView.js"
+export { ConfirmDialog, type ConfirmDialogProps } from "./ConfirmDialog.js"
+export { ErrorDialog, type ErrorDialogProps, type ErrorInfo } from "./ErrorDialog.js"
+export { Progress, type ProgressProps } from "./Progress.js"

packages/ipuaro/src/tui/hooks/index.ts

@@ -0,0 +1,11 @@
+/**
+ * TUI hooks.
+ */
+
+export {
+    useSession,
+    type UseSessionDependencies,
+    type UseSessionOptions,
+    type UseSessionReturn,
+} from "./useSession.js"
+export { useHotkeys, type HotkeyHandlers, type UseHotkeysOptions } from "./useHotkeys.js"

packages/ipuaro/src/tui/hooks/useHotkeys.ts

@@ -0,0 +1,59 @@
+/**
+ * useHotkeys hook for TUI.
+ * Handles global keyboard shortcuts.
+ */
+
+import { useInput } from "ink"
+import { useCallback, useRef } from "react"
+
+export interface HotkeyHandlers {
+    onInterrupt?: () => void
+    onExit?: () => void
+    onUndo?: () => void
+}
+
+export interface UseHotkeysOptions {
+    enabled?: boolean
+}
+
+export function useHotkeys(handlers: HotkeyHandlers, options: UseHotkeysOptions = {}): void {
+    const { enabled = true } = options
+    const interruptCount = useRef(0)
+    const interruptTimer = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+    const resetInterruptCount = useCallback((): void => {
+        interruptCount.current = 0
+        if (interruptTimer.current) {
+            clearTimeout(interruptTimer.current)
+            interruptTimer.current = null
+        }
+    }, [])
+
+    useInput(
+        (_input, key) => {
+            if (key.ctrl && _input === "c") {
+                interruptCount.current++
+
+                if (interruptCount.current === 1) {
+                    handlers.onInterrupt?.()
+
+                    interruptTimer.current = setTimeout(() => {
+                        resetInterruptCount()
+                    }, 1000)
+                } else if (interruptCount.current >= 2) {
+                    resetInterruptCount()
+                    handlers.onExit?.()
+                }
+            }
+
+            if (key.ctrl && _input === "d") {
+                handlers.onExit?.()
+            }
+
+            if (key.ctrl && _input === "z") {
+                handlers.onUndo?.()
+            }
+        },
+        { isActive: enabled },
+    )
+}

packages/ipuaro/src/tui/hooks/useSession.ts

@@ -0,0 +1,205 @@
+/**
+ * useSession hook for TUI.
+ * Manages session state and message handling.
+ */
+
+import { useCallback, useEffect, useRef, useState } from "react"
+import type { Session } from "../../domain/entities/Session.js"
+import type { ILLMClient } from "../../domain/services/ILLMClient.js"
+import type { ISessionStorage } from "../../domain/services/ISessionStorage.js"
+import type { IStorage } from "../../domain/services/IStorage.js"
+import type { DiffInfo } from "../../domain/services/ITool.js"
+import type { ChatMessage } from "../../domain/value-objects/ChatMessage.js"
+import type { ErrorChoice } from "../../shared/types/index.js"
+import type { IToolRegistry } from "../../application/interfaces/IToolRegistry.js"
+import {
+    HandleMessage,
+    type HandleMessageStatus,
+} from "../../application/use-cases/HandleMessage.js"
+import { StartSession } from "../../application/use-cases/StartSession.js"
+import { UndoChange } from "../../application/use-cases/UndoChange.js"
+import type { ProjectStructure } from "../../infrastructure/llm/prompts.js"
+import type { TuiStatus } from "../types.js"
+
+export interface UseSessionDependencies {
+    storage: IStorage
+    sessionStorage: ISessionStorage
+    llm: ILLMClient
+    tools: IToolRegistry
+    projectRoot: string
+    projectName: string
+    projectStructure?: ProjectStructure
+}
+
+export interface UseSessionOptions {
+    autoApply?: boolean
+    onConfirmation?: (message: string, diff?: DiffInfo) => Promise<boolean>
+    onError?: (error: Error) => Promise<ErrorChoice>
+}
+
+export interface UseSessionReturn {
+    session: Session | null
+    messages: ChatMessage[]
+    status: TuiStatus
+    isLoading: boolean
+    error: Error | null
+    sendMessage: (message: string) => Promise<void>
+    undo: () => Promise<boolean>
+    clearHistory: () => void
+    abort: () => void
+}
+
+interface SessionRefs {
+    session: Session | null
+    handleMessage: HandleMessage | null
+    undoChange: UndoChange | null
+}
+
+type SetStatus = React.Dispatch<React.SetStateAction<TuiStatus>>
+type SetMessages = React.Dispatch<React.SetStateAction<ChatMessage[]>>
+
+interface StateSetters {
+    setMessages: SetMessages
+    setStatus: SetStatus
+    forceUpdate: () => void
+}
+
+function createEventHandlers(
+    setters: StateSetters,
+    options: UseSessionOptions,
+): Parameters<HandleMessage["setEvents"]>[0] {
+    return {
+        onMessage: (msg) => {
+            setters.setMessages((prev) => [...prev, msg])
+        },
+        onToolCall: () => {
+            setters.setStatus("tool_call")
+        },
+        onToolResult: () => {
+            setters.setStatus("thinking")
+        },
+        onConfirmation: options.onConfirmation,
+        onError: options.onError,
+        onStatusChange: (s: HandleMessageStatus) => {
+            setters.setStatus(s)
+        },
+        onUndoEntry: () => {
+            setters.forceUpdate()
+        },
+    }
+}
+
+async function initializeSession(
+    deps: UseSessionDependencies,
+    options: UseSessionOptions,
+    refs: React.MutableRefObject<SessionRefs>,
+    setters: StateSetters,
+): Promise<void> {
+    const startSession = new StartSession(deps.sessionStorage)
+    const result = await startSession.execute(deps.projectName)
+    refs.current.session = result.session
+    setters.setMessages([...result.session.history])
+
+    const handleMessage = new HandleMessage(
+        deps.storage,
+        deps.sessionStorage,
+        deps.llm,
+        deps.tools,
+        deps.projectRoot,
+    )
+    if (deps.projectStructure) {
+        handleMessage.setProjectStructure(deps.projectStructure)
+    }
+    handleMessage.setOptions({ autoApply: options.autoApply })
+    handleMessage.setEvents(createEventHandlers(setters, options))
+    refs.current.handleMessage = handleMessage
+    refs.current.undoChange = new UndoChange(deps.sessionStorage, deps.storage)
+    setters.forceUpdate()
+}
+
+export function useSession(
+    deps: UseSessionDependencies,
+    options: UseSessionOptions = {},
+): UseSessionReturn {
+    const [messages, setMessages] = useState<ChatMessage[]>([])
+    const [status, setStatus] = useState<TuiStatus>("ready")
+    const [isLoading, setIsLoading] = useState(true)
+    const [error, setError] = useState<Error | null>(null)
+    const [, setTrigger] = useState(0)
+    const refs = useRef<SessionRefs>({ session: null, handleMessage: null, undoChange: null })
+    const forceUpdate = useCallback(() => {
+        setTrigger((v) => v + 1)
+    }, [])
+
+    useEffect(() => {
+        setIsLoading(true)
+        const setters: StateSetters = { setMessages, setStatus, forceUpdate }
+        initializeSession(deps, options, refs, setters)
+            .then(() => {
+                setError(null)
+            })
+            .catch((err: unknown) => {
+                setError(err instanceof Error ? err : new Error(String(err)))
+            })
+            .finally(() => {
+                setIsLoading(false)
+            })
+    }, [deps.projectName, forceUpdate])
+
+    const sendMessage = useCallback(async (message: string): Promise<void> => {
+        const { session, handleMessage } = refs.current
+        if (!session || !handleMessage) {
+            return
+        }
+        try {
+            setStatus("thinking")
+            await handleMessage.execute(session, message)
+        } catch (err) {
+            setError(err instanceof Error ? err : new Error(String(err)))
+            setStatus("error")
+        }
+    }, [])
+
+    const undo = useCallback(async (): Promise<boolean> => {
+        const { session, undoChange } = refs.current
+        if (!session || !undoChange) {
+            return false
+        }
+        try {
+            const result = await undoChange.execute(session)
+            if (result.success) {
+                forceUpdate()
+                return true
+            }
+            return false
+        } catch {
+            return false
+        }
+    }, [forceUpdate])
+
+    const clearHistory = useCallback(() => {
+        if (!refs.current.session) {
+            return
+        }
+        refs.current.session.clearHistory()
+        setMessages([])
+        forceUpdate()
+    }, [forceUpdate])
+
+    const abort = useCallback(() => {
+        refs.current.handleMessage?.abort()
+        setStatus("ready")
+    }, [])
+
+    return {
+        session: refs.current.session,
+        messages,
+        status,
+        isLoading,
+        error,
+        sendMessage,
+        undo,
+        clearHistory,
+        abort,
+    }
+}

packages/ipuaro/src/tui/index.ts

@@ -0,0 +1,8 @@
+/**
+ * TUI module - Terminal User Interface.
+ */
+
+export { App, type AppDependencies, type ExtendedAppProps } from "./App.js"
+export * from "./components/index.js"
+export * from "./hooks/index.js"
+export * from "./types.js"

packages/ipuaro/src/tui/types.ts

@@ -0,0 +1,38 @@
+/**
+ * TUI types and interfaces.
+ */
+
+import type { HandleMessageStatus } from "../application/use-cases/HandleMessage.js"
+
+/**
+ * TUI status - maps to HandleMessageStatus.
+ */
+export type TuiStatus = HandleMessageStatus
+
+/**
+ * Git branch information.
+ */
+export interface BranchInfo {
+    name: string
+    isDetached: boolean
+}
+
+/**
+ * Props for the main App component.
+ */
+export interface AppProps {
+    projectPath: string
+    autoApply?: boolean
+    model?: string
+}
+
+/**
+ * Status bar display data.
+ */
+export interface StatusBarData {
+    contextUsage: number
+    projectName: string
+    branch: BranchInfo
+    sessionTime: string
+    status: TuiStatus
+}

packages/ipuaro/tests/unit/application/use-cases/ContextManager.test.ts

@@ -0,0 +1,248 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import { ContextManager } from "../../../../src/application/use-cases/ContextManager.js"
+import { Session } from "../../../../src/domain/entities/Session.js"
+import type { ILLMClient, LLMResponse } from "../../../../src/domain/services/ILLMClient.js"
+import {
+    createUserMessage,
+    createAssistantMessage,
+} from "../../../../src/domain/value-objects/ChatMessage.js"
+
+describe("ContextManager", () => {
+    let manager: ContextManager
+    const CONTEXT_SIZE = 128_000
+
+    beforeEach(() => {
+        manager = new ContextManager(CONTEXT_SIZE)
+    })
+
+    describe("addToContext", () => {
+        it("should add file to context", () => {
+            manager.addToContext("test.ts", 100)
+
+            expect(manager.getFilesInContext()).toContain("test.ts")
+            expect(manager.getTokenCount()).toBe(100)
+        })
+
+        it("should update token count when same file added", () => {
+            manager.addToContext("test.ts", 100)
+            manager.addToContext("test.ts", 200)
+
+            expect(manager.getFilesInContext()).toHaveLength(1)
+            expect(manager.getTokenCount()).toBe(200)
+        })
+
+        it("should accumulate tokens for different files", () => {
+            manager.addToContext("a.ts", 100)
+            manager.addToContext("b.ts", 200)
+
+            expect(manager.getFilesInContext()).toHaveLength(2)
+            expect(manager.getTokenCount()).toBe(300)
+        })
+    })
+
+    describe("removeFromContext", () => {
+        it("should remove file from context", () => {
+            manager.addToContext("test.ts", 100)
+            manager.removeFromContext("test.ts")
+
+            expect(manager.getFilesInContext()).not.toContain("test.ts")
+            expect(manager.getTokenCount()).toBe(0)
+        })
+
+        it("should handle removing non-existent file", () => {
+            manager.removeFromContext("non-existent.ts")
+
+            expect(manager.getTokenCount()).toBe(0)
+        })
+    })
+
+    describe("getUsage", () => {
+        it("should return 0 for empty context", () => {
+            expect(manager.getUsage()).toBe(0)
+        })
+
+        it("should calculate usage ratio correctly", () => {
+            manager.addToContext("test.ts", CONTEXT_SIZE / 2)
+
+            expect(manager.getUsage()).toBe(0.5)
+        })
+    })
+
+    describe("getAvailableTokens", () => {
+        it("should return full context when empty", () => {
+            expect(manager.getAvailableTokens()).toBe(CONTEXT_SIZE)
+        })
+
+        it("should calculate available tokens correctly", () => {
+            manager.addToContext("test.ts", 1000)
+
+            expect(manager.getAvailableTokens()).toBe(CONTEXT_SIZE - 1000)
+        })
+    })
+
+    describe("needsCompression", () => {
+        it("should return false when under threshold", () => {
+            manager.addToContext("test.ts", CONTEXT_SIZE * 0.5)
+
+            expect(manager.needsCompression()).toBe(false)
+        })
+
+        it("should return true when over threshold", () => {
+            manager.addToContext("test.ts", CONTEXT_SIZE * 0.85)
+
+            expect(manager.needsCompression()).toBe(true)
+        })
+
+        it("should return false at exactly threshold", () => {
+            manager.addToContext("test.ts", CONTEXT_SIZE * 0.8)
+
+            expect(manager.needsCompression()).toBe(false)
+        })
+    })
+
+    describe("addTokens", () => {
+        it("should add tokens to current count", () => {
+            manager.addTokens(500)
+
+            expect(manager.getTokenCount()).toBe(500)
+        })
+
+        it("should accumulate tokens", () => {
+            manager.addTokens(100)
+            manager.addTokens(200)
+
+            expect(manager.getTokenCount()).toBe(300)
+        })
+    })
+
+    describe("syncFromSession", () => {
+        it("should sync files from session context", () => {
+            const session = new Session("test", "project")
+            session.context.filesInContext = ["a.ts", "b.ts"]
+            session.context.tokenUsage = 0.5
+
+            manager.syncFromSession(session)
+
+            expect(manager.getFilesInContext()).toContain("a.ts")
+            expect(manager.getFilesInContext()).toContain("b.ts")
+            expect(manager.getTokenCount()).toBe(Math.floor(0.5 * CONTEXT_SIZE))
+        })
+
+        it("should clear previous state on sync", () => {
+            manager.addToContext("old.ts", 1000)
+
+            const session = new Session("test", "project")
+            session.context.filesInContext = ["new.ts"]
+            session.context.tokenUsage = 0.1
+
+            manager.syncFromSession(session)
+
+            expect(manager.getFilesInContext()).not.toContain("old.ts")
+            expect(manager.getFilesInContext()).toContain("new.ts")
+        })
+    })
+
+    describe("updateSession", () => {
+        it("should update session with current context state", () => {
+            const session = new Session("test", "project")
+
+            manager.addToContext("test.ts", 1000)
+            manager.updateSession(session)
+
+            expect(session.context.filesInContext).toContain("test.ts")
+            expect(session.context.tokenUsage).toBeCloseTo(1000 / CONTEXT_SIZE)
+        })
+
+        it("should set needsCompression flag", () => {
+            const session = new Session("test", "project")
+
+            manager.addToContext("large.ts", CONTEXT_SIZE * 0.9)
+            manager.updateSession(session)
+
+            expect(session.context.needsCompression).toBe(true)
+        })
+    })
+
+    describe("compress", () => {
+        let mockLLM: ILLMClient
+        let session: Session
+
+        beforeEach(() => {
+            mockLLM = {
+                chat: vi.fn().mockResolvedValue({
+                    content: "Summary of previous conversation",
+                    toolCalls: [],
+                    tokens: 50,
+                    timeMs: 100,
+                    truncated: false,
+                    stopReason: "end",
+                } as LLMResponse),
+                countTokens: vi.fn().mockResolvedValue(10),
+                isAvailable: vi.fn().mockResolvedValue(true),
+                getModelName: vi.fn().mockReturnValue("test-model"),
+                getContextWindowSize: vi.fn().mockReturnValue(CONTEXT_SIZE),
+                pullModel: vi.fn().mockResolvedValue(undefined),
+                abort: vi.fn(),
+            }
+
+            session = new Session("test", "project")
+        })
+
+        it("should not compress when history is short", async () => {
+            for (let i = 0; i < 5; i++) {
+                session.addMessage(createUserMessage(`Message ${String(i)}`))
+            }
+
+            const result = await manager.compress(session, mockLLM)
+
+            expect(result.compressed).toBe(false)
+            expect(result.removedMessages).toBe(0)
+        })
+
+        it("should compress when history is long enough", async () => {
+            for (let i = 0; i < 15; i++) {
+                session.addMessage(createUserMessage(`Message ${String(i)}`))
+                session.addMessage(createAssistantMessage(`Response ${String(i)}`))
+            }
+            manager.addToContext("test.ts", 10000)
+
+            const result = await manager.compress(session, mockLLM)
+
+            expect(result.compressed).toBe(true)
+            expect(result.removedMessages).toBeGreaterThan(0)
+            expect(result.summary).toBeDefined()
+        })
+
+        it("should keep recent messages after compression", async () => {
+            for (let i = 0; i < 15; i++) {
+                session.addMessage(createUserMessage(`Message ${String(i)}`))
+            }
+
+            await manager.compress(session, mockLLM)
+
+            expect(session.history.length).toBeLessThan(15)
+            expect(session.history[session.history.length - 1].content).toContain("Message 14")
+        })
+
+        it("should add summary as system message", async () => {
+            for (let i = 0; i < 15; i++) {
+                session.addMessage(createUserMessage(`Message ${String(i)}`))
+            }
+
+            await manager.compress(session, mockLLM)
+
+            expect(session.history[0].role).toBe("system")
+            expect(session.history[0].content).toContain("Summary")
+        })
+    })
+
+    describe("createInitialState", () => {
+        it("should create empty initial state", () => {
+            const state = ContextManager.createInitialState()
+
+            expect(state.filesInContext).toEqual([])
+            expect(state.tokenUsage).toBe(0)
+            expect(state.needsCompression).toBe(false)
+        })
+    })
+})

packages/ipuaro/tests/unit/application/use-cases/HandleMessage.test.ts

@@ -0,0 +1,421 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import { HandleMessage } from "../../../../src/application/use-cases/HandleMessage.js"
+import type { IStorage } from "../../../../src/domain/services/IStorage.js"
+import type { ISessionStorage } from "../../../../src/domain/services/ISessionStorage.js"
+import type { ILLMClient, LLMResponse } from "../../../../src/domain/services/ILLMClient.js"
+import type { IToolRegistry } from "../../../../src/application/interfaces/IToolRegistry.js"
+import type { ITool, ToolContext } from "../../../../src/domain/services/ITool.js"
+import { Session } from "../../../../src/domain/entities/Session.js"
+import { createSuccessResult } from "../../../../src/domain/value-objects/ToolResult.js"
+
+describe("HandleMessage", () => {
+    let useCase: HandleMessage
+    let mockStorage: IStorage
+    let mockSessionStorage: ISessionStorage
+    let mockLLM: ILLMClient
+    let mockTools: IToolRegistry
+    let session: Session
+
+    const createMockLLMResponse = (content: string, toolCalls = false): LLMResponse => ({
+        content,
+        toolCalls: [],
+        tokens: 100,
+        timeMs: 50,
+        truncated: false,
+        stopReason: toolCalls ? "tool_use" : "end",
+    })
+
+    beforeEach(() => {
+        mockStorage = {
+            getFile: vi.fn().mockResolvedValue(null),
+            setFile: vi.fn().mockResolvedValue(undefined),
+            deleteFile: vi.fn().mockResolvedValue(undefined),
+            getAllFiles: vi.fn().mockResolvedValue(new Map()),
+            getFileCount: vi.fn().mockResolvedValue(0),
+            getAST: vi.fn().mockResolvedValue(null),
+            setAST: vi.fn().mockResolvedValue(undefined),
+            deleteAST: vi.fn().mockResolvedValue(undefined),
+            getAllASTs: vi.fn().mockResolvedValue(new Map()),
+            getMeta: vi.fn().mockResolvedValue(null),
+            setMeta: vi.fn().mockResolvedValue(undefined),
+            deleteMeta: vi.fn().mockResolvedValue(undefined),
+            getAllMetas: vi.fn().mockResolvedValue(new Map()),
+            getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+            setSymbolIndex: vi.fn().mockResolvedValue(undefined),
+            getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+            setDepsGraph: vi.fn().mockResolvedValue(undefined),
+            getProjectConfig: vi.fn().mockResolvedValue(null),
+            setProjectConfig: vi.fn().mockResolvedValue(undefined),
+            connect: vi.fn().mockResolvedValue(undefined),
+            disconnect: vi.fn().mockResolvedValue(undefined),
+            isConnected: vi.fn().mockReturnValue(true),
+            clear: vi.fn().mockResolvedValue(undefined),
+        }
+
+        mockSessionStorage = {
+            saveSession: vi.fn().mockResolvedValue(undefined),
+            loadSession: vi.fn().mockResolvedValue(null),
+            deleteSession: vi.fn().mockResolvedValue(undefined),
+            listSessions: vi.fn().mockResolvedValue([]),
+            getLatestSession: vi.fn().mockResolvedValue(null),
+            sessionExists: vi.fn().mockResolvedValue(false),
+            pushUndoEntry: vi.fn().mockResolvedValue(undefined),
+            popUndoEntry: vi.fn().mockResolvedValue(null),
+            getUndoStack: vi.fn().mockResolvedValue([]),
+            touchSession: vi.fn().mockResolvedValue(undefined),
+            clearAllSessions: vi.fn().mockResolvedValue(undefined),
+        }
+
+        mockLLM = {
+            chat: vi.fn().mockResolvedValue(createMockLLMResponse("Hello!")),
+            countTokens: vi.fn().mockResolvedValue(10),
+            isAvailable: vi.fn().mockResolvedValue(true),
+            getModelName: vi.fn().mockReturnValue("test-model"),
+            getContextWindowSize: vi.fn().mockReturnValue(128_000),
+            pullModel: vi.fn().mockResolvedValue(undefined),
+            abort: vi.fn(),
+        }
+
+        mockTools = {
+            register: vi.fn(),
+            get: vi.fn().mockReturnValue(undefined),
+            getAll: vi.fn().mockReturnValue([]),
+            getByCategory: vi.fn().mockReturnValue([]),
+            has: vi.fn().mockReturnValue(false),
+            execute: vi.fn(),
+            getToolDefinitions: vi.fn().mockReturnValue([]),
+        }
+
+        session = new Session("test-session", "test-project")
+        useCase = new HandleMessage(mockStorage, mockSessionStorage, mockLLM, mockTools, "/project")
+    })
+
+    describe("execute", () => {
+        it("should add user message to session history", async () => {
+            await useCase.execute(session, "Hello, assistant!")
+
+            expect(session.history.length).toBeGreaterThan(0)
+            expect(session.history[0].role).toBe("user")
+            expect(session.history[0].content).toBe("Hello, assistant!")
+        })
+
+        it("should add user input to input history", async () => {
+            await useCase.execute(session, "Test command")
+
+            expect(session.inputHistory).toContain("Test command")
+        })
+
+        it("should save session after user message", async () => {
+            await useCase.execute(session, "Hello")
+
+            expect(mockSessionStorage.saveSession).toHaveBeenCalled()
+        })
+
+        it("should send messages to LLM", async () => {
+            await useCase.execute(session, "What is 2+2?")
+
+            expect(mockLLM.chat).toHaveBeenCalled()
+        })
+
+        it("should add assistant response to history", async () => {
+            vi.mocked(mockLLM.chat).mockResolvedValue(createMockLLMResponse("The answer is 4!"))
+
+            await useCase.execute(session, "What is 2+2?")
+
+            const assistantMessages = session.history.filter((m) => m.role === "assistant")
+            expect(assistantMessages.length).toBeGreaterThan(0)
+            expect(assistantMessages[0].content).toBe("The answer is 4!")
+        })
+
+        it("should not add empty user messages", async () => {
+            await useCase.execute(session, "   ")
+
+            const userMessages = session.history.filter((m) => m.role === "user")
+            expect(userMessages.length).toBe(0)
+        })
+
+        it("should track token usage in message stats", async () => {
+            vi.mocked(mockLLM.chat).mockResolvedValue({
+                content: "Response",
+                toolCalls: [],
+                tokens: 150,
+                timeMs: 200,
+                truncated: false,
+                stopReason: "end",
+            })
+
+            await useCase.execute(session, "Hello")
+
+            const assistantMessage = session.history.find((m) => m.role === "assistant")
+            expect(assistantMessage?.stats?.tokens).toBe(150)
+            expect(assistantMessage?.stats?.timeMs).toBeGreaterThanOrEqual(0)
+        })
+    })
+
+    describe("tool execution", () => {
+        const mockTool: ITool = {
+            name: "get_lines",
+            description: "Get lines from file",
+            parameters: [],
+            requiresConfirmation: false,
+            category: "read",
+            validateParams: vi.fn().mockReturnValue(null),
+            execute: vi.fn().mockResolvedValue(createSuccessResult("test", { lines: [] }, 10)),
+        }
+
+        beforeEach(() => {
+            vi.mocked(mockTools.get).mockReturnValue(mockTool)
+        })
+
+        it("should execute tools when LLM returns tool calls", async () => {
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="get_lines"><path>test.ts</path></tool_call>',
+                        true,
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done!"))
+
+            await useCase.execute(session, "Show me test.ts")
+
+            expect(mockTool.execute).toHaveBeenCalled()
+        })
+
+        it("should add tool results to session", async () => {
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="get_lines"><path>test.ts</path></tool_call>',
+                        true,
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done!"))
+
+            await useCase.execute(session, "Show me test.ts")
+
+            const toolMessages = session.history.filter((m) => m.role === "tool")
+            expect(toolMessages.length).toBeGreaterThan(0)
+        })
+
+        it("should return error for unknown tools", async () => {
+            vi.mocked(mockTools.get).mockReturnValue(undefined)
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="unknown_tool"><param>value</param></tool_call>',
+                        true,
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Sorry, that didn't work"))
+
+            await useCase.execute(session, "Do something")
+
+            const toolMessages = session.history.filter((m) => m.role === "tool")
+            expect(toolMessages[0].content).toContain("Unknown tool")
+        })
+
+        it("should stop after max tool calls exceeded", async () => {
+            useCase.setOptions({ maxToolCalls: 2 })
+
+            vi.mocked(mockLLM.chat).mockResolvedValue(
+                createMockLLMResponse(
+                    '<tool_call name="get_lines"><path>a.ts</path></tool_call>' +
+                        '<tool_call name="get_lines"><path>b.ts</path></tool_call>' +
+                        '<tool_call name="get_lines"><path>c.ts</path></tool_call>',
+                    true,
+                ),
+            )
+
+            await useCase.execute(session, "Show many files")
+
+            const systemMessages = session.history.filter((m) => m.role === "system")
+            const maxExceeded = systemMessages.some((m) => m.content.includes("Maximum tool calls"))
+            expect(maxExceeded).toBe(true)
+        })
+    })
+
+    describe("events", () => {
+        it("should emit message events", async () => {
+            const onMessage = vi.fn()
+            useCase.setEvents({ onMessage })
+
+            await useCase.execute(session, "Hello")
+
+            expect(onMessage).toHaveBeenCalled()
+        })
+
+        it("should emit status changes", async () => {
+            const onStatusChange = vi.fn()
+            useCase.setEvents({ onStatusChange })
+
+            await useCase.execute(session, "Hello")
+
+            expect(onStatusChange).toHaveBeenCalledWith("thinking")
+            expect(onStatusChange).toHaveBeenCalledWith("ready")
+        })
+
+        it("should emit tool call events", async () => {
+            const onToolCall = vi.fn()
+            useCase.setEvents({ onToolCall })
+
+            const mockTool: ITool = {
+                name: "get_lines",
+                description: "Test",
+                parameters: [],
+                requiresConfirmation: false,
+                category: "read",
+                validateParams: vi.fn().mockReturnValue(null),
+                execute: vi.fn().mockResolvedValue(createSuccessResult("test", {}, 10)),
+            }
+            vi.mocked(mockTools.get).mockReturnValue(mockTool)
+
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="get_lines"><path>test.ts</path></tool_call>',
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done"))
+
+            await useCase.execute(session, "Show file")
+
+            expect(onToolCall).toHaveBeenCalled()
+        })
+    })
+
+    describe("confirmation handling", () => {
+        const mockEditTool: ITool = {
+            name: "edit_lines",
+            description: "Edit lines",
+            parameters: [],
+            requiresConfirmation: true,
+            category: "edit",
+            validateParams: vi.fn().mockReturnValue(null),
+            execute: vi
+                .fn()
+                .mockImplementation(async (_params: Record<string, unknown>, ctx: ToolContext) => {
+                    const confirmed = await ctx.requestConfirmation("Apply edit?", {
+                        filePath: "test.ts",
+                        oldLines: ["old"],
+                        newLines: ["new"],
+                        startLine: 1,
+                    })
+                    if (!confirmed) {
+                        return createSuccessResult("test", { cancelled: true }, 10)
+                    }
+                    return createSuccessResult("test", { applied: true }, 10)
+                }),
+        }
+
+        beforeEach(() => {
+            vi.mocked(mockTools.get).mockReturnValue(mockEditTool)
+        })
+
+        it("should auto-apply when autoApply option is true", async () => {
+            useCase.setOptions({ autoApply: true })
+
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="edit_lines"><path>test.ts</path></tool_call>',
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done"))
+
+            await useCase.execute(session, "Edit file")
+
+            expect(mockEditTool.execute).toHaveBeenCalled()
+        })
+
+        it("should ask for confirmation via callback", async () => {
+            const onConfirmation = vi.fn().mockResolvedValue(true)
+            useCase.setEvents({ onConfirmation })
+
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="edit_lines"><path>test.ts</path></tool_call>',
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done"))
+
+            await useCase.execute(session, "Edit file")
+
+            expect(onConfirmation).toHaveBeenCalled()
+        })
+
+        it("should create undo entry on confirmation", async () => {
+            const onUndoEntry = vi.fn()
+            useCase.setEvents({
+                onConfirmation: vi.fn().mockResolvedValue(true),
+                onUndoEntry,
+            })
+
+            vi.mocked(mockLLM.chat)
+                .mockResolvedValueOnce(
+                    createMockLLMResponse(
+                        '<tool_call name="edit_lines"><path>test.ts</path></tool_call>',
+                    ),
+                )
+                .mockResolvedValueOnce(createMockLLMResponse("Done"))
+
+            await useCase.execute(session, "Edit file")
+
+            expect(onUndoEntry).toHaveBeenCalled()
+            expect(mockSessionStorage.pushUndoEntry).toHaveBeenCalled()
+        })
+    })
+
+    describe("abort", () => {
+        it("should stop processing when aborted", async () => {
+            vi.mocked(mockLLM.chat).mockImplementation(async () => {
+                await new Promise((resolve) => setTimeout(resolve, 100))
+                return createMockLLMResponse("Response")
+            })
+
+            const promise = useCase.execute(session, "Hello")
+
+            setTimeout(() => useCase.abort(), 10)
+
+            await promise
+
+            expect(mockLLM.abort).toHaveBeenCalled()
+        })
+    })
+
+    describe("error handling", () => {
+        it("should handle LLM errors gracefully", async () => {
+            vi.mocked(mockLLM.chat).mockRejectedValue(new Error("LLM unavailable"))
+
+            await useCase.execute(session, "Hello")
+
+            const systemMessages = session.history.filter((m) => m.role === "system")
+            expect(systemMessages.some((m) => m.content.includes("Error"))).toBe(true)
+        })
+
+        it("should emit error status on LLM failure", async () => {
+            const onStatusChange = vi.fn()
+            useCase.setEvents({ onStatusChange })
+
+            vi.mocked(mockLLM.chat).mockRejectedValue(new Error("LLM error"))
+
+            await useCase.execute(session, "Hello")
+
+            expect(onStatusChange).toHaveBeenCalledWith("error")
+        })
+
+        it("should allow retry on error", async () => {
+            const onError = vi.fn().mockResolvedValue("retry")
+            useCase.setEvents({ onError })
+
+            vi.mocked(mockLLM.chat)
+                .mockRejectedValueOnce(new Error("Temporary error"))
+                .mockResolvedValueOnce(createMockLLMResponse("Success!"))
+
+            await useCase.execute(session, "Hello")
+
+            expect(onError).toHaveBeenCalled()
+        })
+    })
+})

packages/ipuaro/tests/unit/application/use-cases/StartSession.test.ts

@@ -0,0 +1,112 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import { StartSession } from "../../../../src/application/use-cases/StartSession.js"
+import type { ISessionStorage } from "../../../../src/domain/services/ISessionStorage.js"
+import { Session } from "../../../../src/domain/entities/Session.js"
+
+describe("StartSession", () => {
+    let useCase: StartSession
+    let mockSessionStorage: ISessionStorage
+
+    beforeEach(() => {
+        mockSessionStorage = {
+            saveSession: vi.fn().mockResolvedValue(undefined),
+            loadSession: vi.fn().mockResolvedValue(null),
+            deleteSession: vi.fn().mockResolvedValue(undefined),
+            listSessions: vi.fn().mockResolvedValue([]),
+            getLatestSession: vi.fn().mockResolvedValue(null),
+            sessionExists: vi.fn().mockResolvedValue(false),
+            pushUndoEntry: vi.fn().mockResolvedValue(undefined),
+            popUndoEntry: vi.fn().mockResolvedValue(null),
+            getUndoStack: vi.fn().mockResolvedValue([]),
+            touchSession: vi.fn().mockResolvedValue(undefined),
+            clearAllSessions: vi.fn().mockResolvedValue(undefined),
+        }
+
+        useCase = new StartSession(mockSessionStorage)
+    })
+
+    describe("execute", () => {
+        it("should create new session when no existing session", async () => {
+            const result = await useCase.execute("test-project")
+
+            expect(result.isNew).toBe(true)
+            expect(result.session.projectName).toBe("test-project")
+            expect(mockSessionStorage.saveSession).toHaveBeenCalled()
+        })
+
+        it("should return latest session when one exists", async () => {
+            const existingSession = new Session("existing-id", "test-project")
+            vi.mocked(mockSessionStorage.getLatestSession).mockResolvedValue(existingSession)
+
+            const result = await useCase.execute("test-project")
+
+            expect(result.isNew).toBe(false)
+            expect(result.session.id).toBe("existing-id")
+            expect(mockSessionStorage.touchSession).toHaveBeenCalledWith("existing-id")
+        })
+
+        it("should load specific session by ID", async () => {
+            const specificSession = new Session("specific-id", "test-project")
+            vi.mocked(mockSessionStorage.loadSession).mockResolvedValue(specificSession)
+
+            const result = await useCase.execute("test-project", { sessionId: "specific-id" })
+
+            expect(result.isNew).toBe(false)
+            expect(result.session.id).toBe("specific-id")
+            expect(mockSessionStorage.loadSession).toHaveBeenCalledWith("specific-id")
+        })
+
+        it("should create new session when specified session not found", async () => {
+            vi.mocked(mockSessionStorage.loadSession).mockResolvedValue(null)
+
+            const result = await useCase.execute("test-project", { sessionId: "non-existent" })
+
+            expect(result.isNew).toBe(true)
+            expect(mockSessionStorage.saveSession).toHaveBeenCalled()
+        })
+
+        it("should force new session when forceNew is true", async () => {
+            const existingSession = new Session("existing-id", "test-project")
+            vi.mocked(mockSessionStorage.getLatestSession).mockResolvedValue(existingSession)
+
+            const result = await useCase.execute("test-project", { forceNew: true })
+
+            expect(result.isNew).toBe(true)
+            expect(result.session.id).not.toBe("existing-id")
+            expect(mockSessionStorage.saveSession).toHaveBeenCalled()
+        })
+
+        it("should generate unique session IDs", async () => {
+            const result1 = await useCase.execute("test-project", { forceNew: true })
+            const result2 = await useCase.execute("test-project", { forceNew: true })
+
+            expect(result1.session.id).not.toBe(result2.session.id)
+        })
+
+        it("should set correct project name on new session", async () => {
+            const result = await useCase.execute("my-special-project")
+
+            expect(result.session.projectName).toBe("my-special-project")
+        })
+
+        it("should initialize new session with empty history", async () => {
+            const result = await useCase.execute("test-project")
+
+            expect(result.session.history).toEqual([])
+        })
+
+        it("should initialize new session with empty undo stack", async () => {
+            const result = await useCase.execute("test-project")
+
+            expect(result.session.undoStack).toEqual([])
+        })
+
+        it("should initialize new session with zero stats", async () => {
+            const result = await useCase.execute("test-project")
+
+            expect(result.session.stats.totalTokens).toBe(0)
+            expect(result.session.stats.toolCalls).toBe(0)
+            expect(result.session.stats.editsApplied).toBe(0)
+        })
+    })
+})

packages/ipuaro/tests/unit/application/use-cases/UndoChange.test.ts

@@ -0,0 +1,234 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"
+import { promises as fs } from "node:fs"
+import { UndoChange } from "../../../../src/application/use-cases/UndoChange.js"
+import type { ISessionStorage } from "../../../../src/domain/services/ISessionStorage.js"
+import type { IStorage } from "../../../../src/domain/services/IStorage.js"
+import { Session } from "../../../../src/domain/entities/Session.js"
+import type { UndoEntry } from "../../../../src/domain/value-objects/UndoEntry.js"
+
+vi.mock("node:fs", () => ({
+    promises: {
+        readFile: vi.fn(),
+        writeFile: vi.fn(),
+        stat: vi.fn(),
+    },
+}))
+
+describe("UndoChange", () => {
+    let useCase: UndoChange
+    let mockSessionStorage: ISessionStorage
+    let mockStorage: IStorage
+    let session: Session
+
+    const createUndoEntry = (overrides: Partial<UndoEntry> = {}): UndoEntry => ({
+        id: "undo-1",
+        timestamp: Date.now(),
+        filePath: "/project/test.ts",
+        previousContent: ["const a = 1"],
+        newContent: ["const a = 2"],
+        description: "Edit test.ts",
+        ...overrides,
+    })
+
+    beforeEach(() => {
+        mockSessionStorage = {
+            saveSession: vi.fn().mockResolvedValue(undefined),
+            loadSession: vi.fn().mockResolvedValue(null),
+            deleteSession: vi.fn().mockResolvedValue(undefined),
+            listSessions: vi.fn().mockResolvedValue([]),
+            getLatestSession: vi.fn().mockResolvedValue(null),
+            sessionExists: vi.fn().mockResolvedValue(false),
+            pushUndoEntry: vi.fn().mockResolvedValue(undefined),
+            popUndoEntry: vi.fn().mockResolvedValue(null),
+            getUndoStack: vi.fn().mockResolvedValue([]),
+            touchSession: vi.fn().mockResolvedValue(undefined),
+            clearAllSessions: vi.fn().mockResolvedValue(undefined),
+        }
+
+        mockStorage = {
+            getFile: vi.fn().mockResolvedValue(null),
+            setFile: vi.fn().mockResolvedValue(undefined),
+            deleteFile: vi.fn().mockResolvedValue(undefined),
+            getAllFiles: vi.fn().mockResolvedValue(new Map()),
+            getFileCount: vi.fn().mockResolvedValue(0),
+            getAST: vi.fn().mockResolvedValue(null),
+            setAST: vi.fn().mockResolvedValue(undefined),
+            deleteAST: vi.fn().mockResolvedValue(undefined),
+            getAllASTs: vi.fn().mockResolvedValue(new Map()),
+            getMeta: vi.fn().mockResolvedValue(null),
+            setMeta: vi.fn().mockResolvedValue(undefined),
+            deleteMeta: vi.fn().mockResolvedValue(undefined),
+            getAllMetas: vi.fn().mockResolvedValue(new Map()),
+            getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+            setSymbolIndex: vi.fn().mockResolvedValue(undefined),
+            getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+            setDepsGraph: vi.fn().mockResolvedValue(undefined),
+            getProjectConfig: vi.fn().mockResolvedValue(null),
+            setProjectConfig: vi.fn().mockResolvedValue(undefined),
+            connect: vi.fn().mockResolvedValue(undefined),
+            disconnect: vi.fn().mockResolvedValue(undefined),
+            isConnected: vi.fn().mockReturnValue(true),
+            clear: vi.fn().mockResolvedValue(undefined),
+        }
+
+        session = new Session("test-session", "test-project")
+        session.stats.editsApplied = 1
+
+        useCase = new UndoChange(mockSessionStorage, mockStorage)
+
+        vi.mocked(fs.stat).mockResolvedValue({
+            size: 100,
+            mtimeMs: Date.now(),
+        } as unknown as Awaited<ReturnType<typeof fs.stat>>)
+    })
+
+    afterEach(() => {
+        vi.clearAllMocks()
+    })
+
+    describe("execute", () => {
+        it("should return error when no undo entries", async () => {
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(null)
+
+            const result = await useCase.execute(session)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("No changes to undo")
+        })
+
+        it("should restore previous content when file matches", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("const a = 2")
+            vi.mocked(fs.writeFile).mockResolvedValue(undefined)
+
+            session.addUndoEntry(entry)
+
+            const result = await useCase.execute(session)
+
+            expect(result.success).toBe(true)
+            expect(result.entry).toBe(entry)
+            expect(fs.writeFile).toHaveBeenCalledWith(entry.filePath, "const a = 1", "utf-8")
+        })
+
+        it("should update storage after undo", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("const a = 2")
+            vi.mocked(fs.writeFile).mockResolvedValue(undefined)
+
+            session.addUndoEntry(entry)
+
+            await useCase.execute(session)
+
+            expect(mockStorage.setFile).toHaveBeenCalledWith(
+                entry.filePath,
+                expect.objectContaining({
+                    lines: entry.previousContent,
+                }),
+            )
+        })
+
+        it("should decrement editsApplied counter", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("const a = 2")
+            vi.mocked(fs.writeFile).mockResolvedValue(undefined)
+
+            session.addUndoEntry(entry)
+            const initialEdits = session.stats.editsApplied
+
+            await useCase.execute(session)
+
+            expect(session.stats.editsApplied).toBe(initialEdits - 1)
+        })
+
+        it("should fail when file has been modified externally", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("const a = 999")
+
+            const result = await useCase.execute(session)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("modified since the change")
+        })
+
+        it("should re-push undo entry on conflict", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("const a = 999")
+
+            await useCase.execute(session)
+
+            expect(mockSessionStorage.pushUndoEntry).toHaveBeenCalledWith(session.id, entry)
+        })
+
+        it("should handle empty file for undo", async () => {
+            const entry = createUndoEntry({
+                previousContent: [],
+                newContent: ["new content"],
+            })
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            vi.mocked(fs.readFile).mockResolvedValue("new content")
+            vi.mocked(fs.writeFile).mockResolvedValue(undefined)
+
+            session.addUndoEntry(entry)
+
+            const result = await useCase.execute(session)
+
+            expect(result.success).toBe(true)
+            expect(fs.writeFile).toHaveBeenCalledWith(entry.filePath, "", "utf-8")
+        })
+
+        it("should handle file not found during undo", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.popUndoEntry).mockResolvedValue(entry)
+            const error = new Error("ENOENT") as NodeJS.ErrnoException
+            error.code = "ENOENT"
+            vi.mocked(fs.readFile).mockRejectedValue(error)
+
+            const result = await useCase.execute(session)
+
+            expect(result.success).toBe(false)
+        })
+    })
+
+    describe("canUndo", () => {
+        it("should return false when stack is empty", async () => {
+            vi.mocked(mockSessionStorage.getUndoStack).mockResolvedValue([])
+
+            const result = await useCase.canUndo(session)
+
+            expect(result).toBe(false)
+        })
+
+        it("should return true when stack has entries", async () => {
+            vi.mocked(mockSessionStorage.getUndoStack).mockResolvedValue([createUndoEntry()])
+
+            const result = await useCase.canUndo(session)
+
+            expect(result).toBe(true)
+        })
+    })
+
+    describe("peekUndoEntry", () => {
+        it("should return null when stack is empty", async () => {
+            vi.mocked(mockSessionStorage.getUndoStack).mockResolvedValue([])
+
+            const result = await useCase.peekUndoEntry(session)
+
+            expect(result).toBeNull()
+        })
+
+        it("should return last entry without removing", async () => {
+            const entry = createUndoEntry()
+            vi.mocked(mockSessionStorage.getUndoStack).mockResolvedValue([entry])
+
+            const result = await useCase.peekUndoEntry(session)
+
+            expect(result).toBe(entry)
+            expect(mockSessionStorage.popUndoEntry).not.toHaveBeenCalled()
+        })
+    })
+})

packages/ipuaro/tests/unit/domain/value-objects/ChatMessage.test.ts

@@ -63,6 +63,13 @@ describe("ChatMessage", () => {
 
             expect(msg.content).toContain("[2] Error: Not found")
         })
+
+        it("should handle error result without error message", () => {
+            const results = [{ callId: "3", success: false, executionTimeMs: 5 }]
+            const msg = createToolMessage(results)
+
+            expect(msg.content).toContain("[3] Error: Unknown error")
+        })
     })
 
     describe("createSystemMessage", () => {

packages/ipuaro/tests/unit/infrastructure/indexer/ASTParser.test.ts

@@ -301,6 +301,66 @@ describe("ASTParser", () => {
         })
     })
 
+    describe("import string formats", () => {
+        it("should handle single-quoted imports", () => {
+            const code = `import { foo } from './module'`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.imports).toHaveLength(1)
+            expect(ast.imports[0].from).toBe("./module")
+        })
+
+        it("should handle double-quoted imports", () => {
+            const code = `import { bar } from "./other"`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.imports).toHaveLength(1)
+            expect(ast.imports[0].from).toBe("./other")
+        })
+    })
+
+    describe("parameter types", () => {
+        it("should handle simple identifier parameters", () => {
+            const code = `const fn = (x) => x * 2`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.functions.length).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle optional parameters with defaults", () => {
+            const code = `function greet(name: string = "World"): string { return name }`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.functions).toHaveLength(1)
+            const fn = ast.functions[0]
+            expect(fn.params.some((p) => p.hasDefault)).toBe(true)
+        })
+
+        it("should handle arrow function with untyped params", () => {
+            const code = `const add = (a, b) => a + b`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.functions.length).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle multiple parameter types", () => {
+            const code = `
+function mix(
+    required: string,
+    optional?: number,
+    withDefault: boolean = true
+) {}
+`
+            const ast = parser.parse(code, "ts")
+
+            expect(ast.functions).toHaveLength(1)
+            const fn = ast.functions[0]
+            expect(fn.params).toHaveLength(3)
+            expect(fn.params.some((p) => p.optional)).toBe(true)
+            expect(fn.params.some((p) => p.hasDefault)).toBe(true)
+        })
+    })
+
     describe("complex file", () => {
         it("should parse complex TypeScript file", () => {
             const code = `

packages/ipuaro/tests/unit/infrastructure/indexer/FileScanner.test.ts

@@ -212,6 +212,32 @@ describe("FileScanner", () => {
         })
     })
 
+    describe("empty file handling", () => {
+        it("should consider empty files as text files", async () => {
+            const emptyFile = path.join(FIXTURES_DIR, "empty-file.ts")
+            await fs.writeFile(emptyFile, "")
+
+            try {
+                const isText = await FileScanner.isTextFile(emptyFile)
+                expect(isText).toBe(true)
+            } finally {
+                await fs.unlink(emptyFile)
+            }
+        })
+
+        it("should read empty file content", async () => {
+            const emptyFile = path.join(FIXTURES_DIR, "empty-content.ts")
+            await fs.writeFile(emptyFile, "")
+
+            try {
+                const content = await FileScanner.readFileContent(emptyFile)
+                expect(content).toBe("")
+            } finally {
+                await fs.unlink(emptyFile)
+            }
+        })
+    })
+
     describe("empty directory handling", () => {
         let emptyDir: string
 

packages/ipuaro/tests/unit/infrastructure/indexer/IndexBuilder.test.ts

@@ -605,4 +605,44 @@ export type ServiceResult<T> = { success: true; data: T } | { success: false; er
             )
         })
     })
+
+    describe("jsx to tsx resolution", () => {
+        it("should resolve .jsx imports to .tsx files", () => {
+            const mainCode = `import { Button } from "./Button.jsx"`
+            const buttonCode = `export function Button() { return null }`
+
+            const asts = new Map<string, FileAST>([
+                ["/project/src/main.ts", parser.parse(mainCode, "ts")],
+                ["/project/src/Button.tsx", parser.parse(buttonCode, "tsx")],
+            ])
+
+            const graph = builder.buildDepsGraph(asts)
+
+            expect(graph.imports.get("/project/src/main.ts")).toContain("/project/src/Button.tsx")
+        })
+    })
+
+    describe("edge cases", () => {
+        it("should handle empty deps graph for circular dependencies", () => {
+            const graph = {
+                imports: new Map<string, string[]>(),
+                importedBy: new Map<string, string[]>(),
+            }
+
+            const cycles = builder.findCircularDependencies(graph)
+            expect(cycles).toEqual([])
+        })
+
+        it("should handle single file with no imports", () => {
+            const code = `export const x = 1`
+            const asts = new Map<string, FileAST>([
+                ["/project/src/single.ts", parser.parse(code, "ts")],
+            ])
+
+            const graph = builder.buildDepsGraph(asts)
+            const cycles = builder.findCircularDependencies(graph)
+
+            expect(cycles).toEqual([])
+        })
+    })
 })

packages/ipuaro/tests/unit/infrastructure/indexer/MetaAnalyzer.test.ts

@@ -544,6 +544,44 @@ const b = 2`
         })
     })
 
+    describe("dependency resolution with different extensions", () => {
+        it("should resolve imports from index files", () => {
+            const content = `import { utils } from "./utils/index"`
+            const ast = parser.parse(content, "ts")
+            const allASTs = new Map<string, FileAST>()
+            allASTs.set("/project/src/main.ts", ast)
+            allASTs.set("/project/src/utils/index.ts", createEmptyFileAST())
+
+            const meta = analyzer.analyze("/project/src/main.ts", ast, content, allASTs)
+
+            expect(meta.dependencies).toContain("/project/src/utils/index.ts")
+        })
+
+        it("should convert .js extension to .ts when resolving", () => {
+            const content = `import { helper } from "./helper.js"`
+            const ast = parser.parse(content, "ts")
+            const allASTs = new Map<string, FileAST>()
+            allASTs.set("/project/src/main.ts", ast)
+            allASTs.set("/project/src/helper.ts", createEmptyFileAST())
+
+            const meta = analyzer.analyze("/project/src/main.ts", ast, content, allASTs)
+
+            expect(meta.dependencies).toContain("/project/src/helper.ts")
+        })
+
+        it("should convert .jsx extension to .tsx when resolving", () => {
+            const content = `import { Button } from "./Button.jsx"`
+            const ast = parser.parse(content, "ts")
+            const allASTs = new Map<string, FileAST>()
+            allASTs.set("/project/src/App.tsx", ast)
+            allASTs.set("/project/src/Button.tsx", createEmptyFileAST())
+
+            const meta = analyzer.analyze("/project/src/App.tsx", ast, content, allASTs)
+
+            expect(meta.dependencies).toContain("/project/src/Button.tsx")
+        })
+    })
+
     describe("analyze", () => {
         it("should produce complete FileMeta", () => {
             const content = `import { helper } from "./helper"

packages/ipuaro/tests/unit/infrastructure/indexer/Watchdog.test.ts

@@ -94,12 +94,70 @@ describe("Watchdog", () => {
         it("should return empty array when not watching", () => {
             expect(watchdog.getWatchedPaths()).toEqual([])
         })
+
+        it("should return paths when watching", async () => {
+            const testFile = path.join(tempDir, "exists.ts")
+            await fs.writeFile(testFile, "const x = 1")
+
+            watchdog.start(tempDir)
+            await new Promise((resolve) => setTimeout(resolve, 200))
+
+            const paths = watchdog.getWatchedPaths()
+            expect(Array.isArray(paths)).toBe(true)
+        })
     })
 
     describe("flushAll", () => {
         it("should not throw when no pending changes", () => {
             expect(() => watchdog.flushAll()).not.toThrow()
         })
+
+        it("should flush all pending changes", async () => {
+            const events: FileChangeEvent[] = []
+            watchdog.onFileChange((event) => events.push(event))
+            watchdog.start(tempDir)
+
+            await new Promise((resolve) => setTimeout(resolve, 100))
+
+            const testFile = path.join(tempDir, "flush-test.ts")
+            await fs.writeFile(testFile, "const x = 1")
+
+            await new Promise((resolve) => setTimeout(resolve, 20))
+
+            watchdog.flushAll()
+
+            await new Promise((resolve) => setTimeout(resolve, 50))
+        })
+    })
+
+    describe("ignore patterns", () => {
+        it("should handle glob patterns with wildcards", async () => {
+            const customWatchdog = new Watchdog({
+                debounceMs: 50,
+                ignorePatterns: ["*.log", "**/*.tmp"],
+            })
+
+            customWatchdog.start(tempDir)
+            await new Promise((resolve) => setTimeout(resolve, 100))
+
+            expect(customWatchdog.isWatching()).toBe(true)
+
+            await customWatchdog.stop()
+        })
+
+        it("should handle simple directory patterns", async () => {
+            const customWatchdog = new Watchdog({
+                debounceMs: 50,
+                ignorePatterns: ["node_modules", "dist"],
+            })
+
+            customWatchdog.start(tempDir)
+            await new Promise((resolve) => setTimeout(resolve, 100))
+
+            expect(customWatchdog.isWatching()).toBe(true)
+
+            await customWatchdog.stop()
+        })
     })
 
     describe("file change detection", () => {

packages/ipuaro/tests/unit/infrastructure/llm/OllamaClient.test.ts

@@ -0,0 +1,488 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"
+import type { LLMConfig } from "../../../../src/shared/constants/config.js"
+import { IpuaroError } from "../../../../src/shared/errors/IpuaroError.js"
+import { createUserMessage } from "../../../../src/domain/value-objects/ChatMessage.js"
+
+const mockChatResponse = {
+    message: {
+        role: "assistant",
+        content: "This is a test response.",
+        tool_calls: undefined,
+    },
+    eval_count: 50,
+    done_reason: "stop",
+}
+
+const mockListResponse = {
+    models: [
+        { name: "qwen2.5-coder:7b-instruct", size: 4000000000 },
+        { name: "llama2:latest", size: 3500000000 },
+    ],
+}
+
+const mockOllamaInstance = {
+    chat: vi.fn(),
+    list: vi.fn(),
+    pull: vi.fn(),
+}
+
+vi.mock("ollama", () => {
+    return {
+        Ollama: vi.fn(() => mockOllamaInstance),
+    }
+})
+
+const { OllamaClient } = await import("../../../../src/infrastructure/llm/OllamaClient.js")
+
+describe("OllamaClient", () => {
+    const defaultConfig: LLMConfig = {
+        model: "qwen2.5-coder:7b-instruct",
+        contextWindow: 128000,
+        temperature: 0.1,
+        host: "http://localhost:11434",
+        timeout: 120000,
+    }
+
+    beforeEach(() => {
+        vi.clearAllMocks()
+        mockOllamaInstance.chat.mockResolvedValue(mockChatResponse)
+        mockOllamaInstance.list.mockResolvedValue(mockListResponse)
+        mockOllamaInstance.pull.mockResolvedValue({})
+    })
+
+    afterEach(() => {
+        vi.restoreAllMocks()
+    })
+
+    describe("constructor", () => {
+        it("should create instance with config", () => {
+            const client = new OllamaClient(defaultConfig)
+            expect(client).toBeDefined()
+            expect(client.getModelName()).toBe("qwen2.5-coder:7b-instruct")
+            expect(client.getContextWindowSize()).toBe(128000)
+        })
+    })
+
+    describe("chat", () => {
+        it("should send messages and return response", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [createUserMessage("Hello, world!")]
+
+            const response = await client.chat(messages)
+
+            expect(response.content).toBe("This is a test response.")
+            expect(response.tokens).toBe(50)
+            expect(response.stopReason).toBe("end")
+            expect(response.truncated).toBe(false)
+        })
+
+        it("should convert messages to Ollama format", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [createUserMessage("Hello")]
+
+            await client.chat(messages)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    model: "qwen2.5-coder:7b-instruct",
+                    messages: expect.arrayContaining([
+                        expect.objectContaining({
+                            role: "user",
+                            content: "Hello",
+                        }),
+                    ]),
+                }),
+            )
+        })
+
+        it("should pass tools when provided", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [createUserMessage("Read file")]
+            const tools = [
+                {
+                    name: "get_lines",
+                    description: "Get lines from file",
+                    parameters: [
+                        {
+                            name: "path",
+                            type: "string" as const,
+                            description: "File path",
+                            required: true,
+                        },
+                    ],
+                },
+            ]
+
+            await client.chat(messages, tools)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    tools: expect.arrayContaining([
+                        expect.objectContaining({
+                            type: "function",
+                            function: expect.objectContaining({
+                                name: "get_lines",
+                            }),
+                        }),
+                    ]),
+                }),
+            )
+        })
+
+        it("should extract tool calls from response", async () => {
+            mockOllamaInstance.chat.mockResolvedValue({
+                message: {
+                    role: "assistant",
+                    content: "",
+                    tool_calls: [
+                        {
+                            function: {
+                                name: "get_lines",
+                                arguments: { path: "src/index.ts" },
+                            },
+                        },
+                    ],
+                },
+                eval_count: 30,
+            })
+
+            const client = new OllamaClient(defaultConfig)
+            const response = await client.chat([createUserMessage("Read file")])
+
+            expect(response.toolCalls).toHaveLength(1)
+            expect(response.toolCalls[0].name).toBe("get_lines")
+            expect(response.toolCalls[0].params).toEqual({ path: "src/index.ts" })
+            expect(response.stopReason).toBe("tool_use")
+        })
+
+        it("should handle connection errors", async () => {
+            mockOllamaInstance.chat.mockRejectedValue(new Error("fetch failed"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.chat([createUserMessage("Hello")])).rejects.toThrow(IpuaroError)
+        })
+
+        it("should handle model not found errors", async () => {
+            mockOllamaInstance.chat.mockRejectedValue(new Error("model not found"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.chat([createUserMessage("Hello")])).rejects.toThrow(/not found/)
+        })
+    })
+
+    describe("countTokens", () => {
+        it("should estimate tokens for text", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const count = await client.countTokens("Hello, world!")
+
+            expect(count).toBeGreaterThan(0)
+            expect(typeof count).toBe("number")
+        })
+    })
+
+    describe("isAvailable", () => {
+        it("should return true when Ollama is available", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const available = await client.isAvailable()
+
+            expect(available).toBe(true)
+        })
+
+        it("should return false when Ollama is not available", async () => {
+            mockOllamaInstance.list.mockRejectedValue(new Error("Connection refused"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            const available = await client.isAvailable()
+
+            expect(available).toBe(false)
+        })
+    })
+
+    describe("getModelName", () => {
+        it("should return configured model name", () => {
+            const client = new OllamaClient(defaultConfig)
+
+            expect(client.getModelName()).toBe("qwen2.5-coder:7b-instruct")
+        })
+    })
+
+    describe("getContextWindowSize", () => {
+        it("should return configured context window size", () => {
+            const client = new OllamaClient(defaultConfig)
+
+            expect(client.getContextWindowSize()).toBe(128000)
+        })
+    })
+
+    describe("pullModel", () => {
+        it("should pull model successfully", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.pullModel("llama2")).resolves.toBeUndefined()
+            expect(mockOllamaInstance.pull).toHaveBeenCalledWith({
+                model: "llama2",
+                stream: false,
+            })
+        })
+
+        it("should throw on pull failure", async () => {
+            mockOllamaInstance.pull.mockRejectedValue(new Error("Network error"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.pullModel("llama2")).rejects.toThrow(IpuaroError)
+        })
+    })
+
+    describe("hasModel", () => {
+        it("should return true for available model", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const has = await client.hasModel("qwen2.5-coder:7b-instruct")
+
+            expect(has).toBe(true)
+        })
+
+        it("should return true for model prefix", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const has = await client.hasModel("llama2")
+
+            expect(has).toBe(true)
+        })
+
+        it("should return false for missing model", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const has = await client.hasModel("unknown-model")
+
+            expect(has).toBe(false)
+        })
+
+        it("should return false when list fails", async () => {
+            mockOllamaInstance.list.mockRejectedValue(new Error("Error"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            const has = await client.hasModel("any-model")
+
+            expect(has).toBe(false)
+        })
+    })
+
+    describe("listModels", () => {
+        it("should return list of model names", async () => {
+            const client = new OllamaClient(defaultConfig)
+
+            const models = await client.listModels()
+
+            expect(models).toContain("qwen2.5-coder:7b-instruct")
+            expect(models).toContain("llama2:latest")
+        })
+
+        it("should throw on list failure", async () => {
+            mockOllamaInstance.list.mockRejectedValue(new Error("Network error"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.listModels()).rejects.toThrow(IpuaroError)
+        })
+    })
+
+    describe("abort", () => {
+        it("should not throw when no request is in progress", () => {
+            const client = new OllamaClient(defaultConfig)
+
+            expect(() => client.abort()).not.toThrow()
+        })
+    })
+
+    describe("message conversion", () => {
+        it("should convert system messages", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [
+                {
+                    role: "system" as const,
+                    content: "You are a helpful assistant",
+                    timestamp: Date.now(),
+                },
+            ]
+
+            await client.chat(messages)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    messages: expect.arrayContaining([
+                        expect.objectContaining({
+                            role: "system",
+                            content: "You are a helpful assistant",
+                        }),
+                    ]),
+                }),
+            )
+        })
+
+        it("should convert tool result messages", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [
+                {
+                    role: "tool" as const,
+                    content: '{"result": "success"}',
+                    timestamp: Date.now(),
+                    toolResults: [
+                        { callId: "call_1", success: true, data: "success", executionTimeMs: 10 },
+                    ],
+                },
+            ]
+
+            await client.chat(messages)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    messages: expect.arrayContaining([
+                        expect.objectContaining({
+                            role: "tool",
+                            content: '{"result": "success"}',
+                        }),
+                    ]),
+                }),
+            )
+        })
+
+        it("should convert assistant messages with tool calls", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [
+                {
+                    role: "assistant" as const,
+                    content: "I will read the file",
+                    timestamp: Date.now(),
+                    toolCalls: [{ id: "call_1", name: "get_lines", params: { path: "test.ts" } }],
+                },
+            ]
+
+            await client.chat(messages)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    messages: expect.arrayContaining([
+                        expect.objectContaining({
+                            role: "assistant",
+                            content: "I will read the file",
+                            tool_calls: expect.arrayContaining([
+                                expect.objectContaining({
+                                    function: expect.objectContaining({
+                                        name: "get_lines",
+                                        arguments: { path: "test.ts" },
+                                    }),
+                                }),
+                            ]),
+                        }),
+                    ]),
+                }),
+            )
+        })
+    })
+
+    describe("response handling", () => {
+        it("should estimate tokens when eval_count is undefined", async () => {
+            mockOllamaInstance.chat.mockResolvedValue({
+                message: {
+                    role: "assistant",
+                    content: "Hello world response",
+                    tool_calls: undefined,
+                },
+                eval_count: undefined,
+                done_reason: "stop",
+            })
+
+            const client = new OllamaClient(defaultConfig)
+            const response = await client.chat([createUserMessage("Hello")])
+
+            expect(response.tokens).toBeGreaterThan(0)
+        })
+
+        it("should return length stop reason", async () => {
+            mockOllamaInstance.chat.mockResolvedValue({
+                message: {
+                    role: "assistant",
+                    content: "Truncated...",
+                    tool_calls: undefined,
+                },
+                eval_count: 100,
+                done_reason: "length",
+            })
+
+            const client = new OllamaClient(defaultConfig)
+            const response = await client.chat([createUserMessage("Hello")])
+
+            expect(response.stopReason).toBe("length")
+        })
+    })
+
+    describe("tool parameter conversion", () => {
+        it("should include enum values when present", async () => {
+            const client = new OllamaClient(defaultConfig)
+            const messages = [createUserMessage("Get status")]
+            const tools = [
+                {
+                    name: "get_status",
+                    description: "Get status",
+                    parameters: [
+                        {
+                            name: "type",
+                            type: "string" as const,
+                            description: "Status type",
+                            required: true,
+                            enum: ["active", "inactive", "pending"],
+                        },
+                    ],
+                },
+            ]
+
+            await client.chat(messages, tools)
+
+            expect(mockOllamaInstance.chat).toHaveBeenCalledWith(
+                expect.objectContaining({
+                    tools: expect.arrayContaining([
+                        expect.objectContaining({
+                            function: expect.objectContaining({
+                                parameters: expect.objectContaining({
+                                    properties: expect.objectContaining({
+                                        type: expect.objectContaining({
+                                            enum: ["active", "inactive", "pending"],
+                                        }),
+                                    }),
+                                }),
+                            }),
+                        }),
+                    ]),
+                }),
+            )
+        })
+    })
+
+    describe("error handling", () => {
+        it("should handle ECONNREFUSED errors", async () => {
+            mockOllamaInstance.chat.mockRejectedValue(new Error("ECONNREFUSED"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.chat([createUserMessage("Hello")])).rejects.toThrow(
+                /Cannot connect to Ollama/,
+            )
+        })
+
+        it("should handle generic errors with context", async () => {
+            mockOllamaInstance.pull.mockRejectedValue(new Error("Unknown error"))
+
+            const client = new OllamaClient(defaultConfig)
+
+            await expect(client.pullModel("test")).rejects.toThrow(/Failed to pull model/)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/llm/ResponseParser.test.ts

@@ -0,0 +1,251 @@
+import { describe, it, expect } from "vitest"
+import {
+    parseToolCalls,
+    formatToolCallsAsXml,
+    extractThinking,
+    hasToolCalls,
+    validateToolCallParams,
+} from "../../../../src/infrastructure/llm/ResponseParser.js"
+import { createToolCall } from "../../../../src/domain/value-objects/ToolCall.js"
+
+describe("ResponseParser", () => {
+    describe("parseToolCalls", () => {
+        it("should parse a single tool call", () => {
+            const response = `<tool_call name="get_lines">
+                <path>src/index.ts</path>
+                <start>1</start>
+                <end>10</end>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls).toHaveLength(1)
+            expect(result.toolCalls[0].name).toBe("get_lines")
+            expect(result.toolCalls[0].params).toEqual({
+                path: "src/index.ts",
+                start: 1,
+                end: 10,
+            })
+            expect(result.hasParseErrors).toBe(false)
+        })
+
+        it("should parse multiple tool calls", () => {
+            const response = `
+                <tool_call name="get_lines">
+                    <path>src/a.ts</path>
+                </tool_call>
+                <tool_call name="get_function">
+                    <path>src/b.ts</path>
+                    <name>myFunc</name>
+                </tool_call>
+            `
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls).toHaveLength(2)
+            expect(result.toolCalls[0].name).toBe("get_lines")
+            expect(result.toolCalls[1].name).toBe("get_function")
+        })
+
+        it("should extract text content without tool calls", () => {
+            const response = `Let me check the file.
+                <tool_call name="get_lines">
+                    <path>src/index.ts</path>
+                </tool_call>
+                Here's what I found.`
+
+            const result = parseToolCalls(response)
+
+            expect(result.content).toContain("Let me check the file.")
+            expect(result.content).toContain("Here's what I found.")
+            expect(result.content).not.toContain("tool_call")
+        })
+
+        it("should parse boolean values", () => {
+            const response = `<tool_call name="git_diff">
+                <staged>true</staged>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls[0].params.staged).toBe(true)
+        })
+
+        it("should parse null values", () => {
+            const response = `<tool_call name="test">
+                <value>null</value>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls[0].params.value).toBe(null)
+        })
+
+        it("should parse JSON arrays", () => {
+            const response = `<tool_call name="git_commit">
+                <files>["a.ts", "b.ts"]</files>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls[0].params.files).toEqual(["a.ts", "b.ts"])
+        })
+
+        it("should parse JSON objects", () => {
+            const response = `<tool_call name="test">
+                <config>{"key": "value"}</config>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls[0].params.config).toEqual({ key: "value" })
+        })
+
+        it("should return empty array for response without tool calls", () => {
+            const response = "This is just a regular response."
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls).toHaveLength(0)
+            expect(result.content).toBe(response)
+        })
+
+        it("should handle named param syntax", () => {
+            const response = `<tool_call name="get_lines">
+                <param name="path">src/index.ts</param>
+                <param name="start">5</param>
+            </tool_call>`
+
+            const result = parseToolCalls(response)
+
+            expect(result.toolCalls[0].params).toEqual({
+                path: "src/index.ts",
+                start: 5,
+            })
+        })
+    })
+
+    describe("formatToolCallsAsXml", () => {
+        it("should format tool calls as XML", () => {
+            const toolCalls = [createToolCall("1", "get_lines", { path: "src/index.ts", start: 1 })]
+
+            const xml = formatToolCallsAsXml(toolCalls)
+
+            expect(xml).toContain('<tool_call name="get_lines">')
+            expect(xml).toContain("<path>src/index.ts</path>")
+            expect(xml).toContain("<start>1</start>")
+            expect(xml).toContain("</tool_call>")
+        })
+
+        it("should format multiple tool calls", () => {
+            const toolCalls = [
+                createToolCall("1", "get_lines", { path: "a.ts" }),
+                createToolCall("2", "get_function", { path: "b.ts", name: "foo" }),
+            ]
+
+            const xml = formatToolCallsAsXml(toolCalls)
+
+            expect(xml).toContain('<tool_call name="get_lines">')
+            expect(xml).toContain('<tool_call name="get_function">')
+        })
+
+        it("should handle object values as JSON", () => {
+            const toolCalls = [createToolCall("1", "test", { data: { key: "value" } })]
+
+            const xml = formatToolCallsAsXml(toolCalls)
+
+            expect(xml).toContain('{"key":"value"}')
+        })
+    })
+
+    describe("extractThinking", () => {
+        it("should extract thinking content", () => {
+            const response = `<thinking>Let me analyze this.</thinking>
+                Here is the answer.`
+
+            const result = extractThinking(response)
+
+            expect(result.thinking).toBe("Let me analyze this.")
+            expect(result.content).toContain("Here is the answer.")
+            expect(result.content).not.toContain("thinking")
+        })
+
+        it("should handle multiple thinking blocks", () => {
+            const response = `<thinking>First thought.</thinking>
+                Some content.
+                <thinking>Second thought.</thinking>
+                More content.`
+
+            const result = extractThinking(response)
+
+            expect(result.thinking).toContain("First thought.")
+            expect(result.thinking).toContain("Second thought.")
+        })
+
+        it("should return original content if no thinking", () => {
+            const response = "Just a regular response."
+
+            const result = extractThinking(response)
+
+            expect(result.thinking).toBe("")
+            expect(result.content).toBe(response)
+        })
+    })
+
+    describe("hasToolCalls", () => {
+        it("should return true if response has tool calls", () => {
+            const response = `<tool_call name="get_lines"><path>a.ts</path></tool_call>`
+
+            expect(hasToolCalls(response)).toBe(true)
+        })
+
+        it("should return false if response has no tool calls", () => {
+            const response = "Just text without tool calls."
+
+            expect(hasToolCalls(response)).toBe(false)
+        })
+    })
+
+    describe("validateToolCallParams", () => {
+        it("should return valid for complete params", () => {
+            const params = { path: "src/index.ts", start: 1, end: 10 }
+            const required = ["path", "start", "end"]
+
+            const result = validateToolCallParams("get_lines", params, required)
+
+            expect(result.valid).toBe(true)
+            expect(result.errors).toHaveLength(0)
+        })
+
+        it("should return errors for missing required params", () => {
+            const params = { path: "src/index.ts" }
+            const required = ["path", "start", "end"]
+
+            const result = validateToolCallParams("get_lines", params, required)
+
+            expect(result.valid).toBe(false)
+            expect(result.errors).toHaveLength(2)
+            expect(result.errors).toContain("Missing required parameter: start")
+            expect(result.errors).toContain("Missing required parameter: end")
+        })
+
+        it("should treat null and undefined as missing", () => {
+            const params = { path: null, start: undefined }
+            const required = ["path", "start"]
+
+            const result = validateToolCallParams("test", params, required)
+
+            expect(result.valid).toBe(false)
+            expect(result.errors).toHaveLength(2)
+        })
+
+        it("should accept empty required array", () => {
+            const params = {}
+            const required: string[] = []
+
+            const result = validateToolCallParams("git_status", params, required)
+
+            expect(result.valid).toBe(true)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/llm/prompts.test.ts

@@ -0,0 +1,717 @@
+import { describe, it, expect } from "vitest"
+import {
+    SYSTEM_PROMPT,
+    buildInitialContext,
+    buildFileContext,
+    truncateContext,
+    type ProjectStructure,
+} from "../../../../src/infrastructure/llm/prompts.js"
+import type { FileAST } from "../../../../src/domain/value-objects/FileAST.js"
+import type { FileMeta } from "../../../../src/domain/value-objects/FileMeta.js"
+
+describe("prompts", () => {
+    describe("SYSTEM_PROMPT", () => {
+        it("should be a non-empty string", () => {
+            expect(typeof SYSTEM_PROMPT).toBe("string")
+            expect(SYSTEM_PROMPT.length).toBeGreaterThan(100)
+        })
+
+        it("should contain core principles", () => {
+            expect(SYSTEM_PROMPT).toContain("Lazy Loading")
+            expect(SYSTEM_PROMPT).toContain("Precision")
+            expect(SYSTEM_PROMPT).toContain("Safety")
+        })
+
+        it("should list available tools", () => {
+            expect(SYSTEM_PROMPT).toContain("get_lines")
+            expect(SYSTEM_PROMPT).toContain("edit_lines")
+            expect(SYSTEM_PROMPT).toContain("find_references")
+            expect(SYSTEM_PROMPT).toContain("git_status")
+            expect(SYSTEM_PROMPT).toContain("run_command")
+        })
+
+        it("should include safety rules", () => {
+            expect(SYSTEM_PROMPT).toContain("Safety Rules")
+            expect(SYSTEM_PROMPT).toContain("Never execute commands that could harm")
+        })
+    })
+
+    describe("buildInitialContext", () => {
+        const structure: ProjectStructure = {
+            name: "my-project",
+            rootPath: "/home/user/my-project",
+            files: ["src/index.ts", "src/utils.ts", "package.json"],
+            directories: ["src", "tests"],
+        }
+
+        const asts = new Map<string, FileAST>([
+            [
+                "src/index.ts",
+                {
+                    imports: [],
+                    exports: [],
+                    functions: [
+                        {
+                            name: "main",
+                            lineStart: 1,
+                            lineEnd: 10,
+                            params: [],
+                            isAsync: false,
+                            isExported: true,
+                        },
+                    ],
+                    classes: [],
+                    interfaces: [],
+                    typeAliases: [],
+                    parseError: false,
+                },
+            ],
+            [
+                "src/utils.ts",
+                {
+                    imports: [],
+                    exports: [],
+                    functions: [],
+                    classes: [
+                        {
+                            name: "Helper",
+                            lineStart: 1,
+                            lineEnd: 20,
+                            methods: [],
+                            properties: [],
+                            implements: [],
+                            isExported: true,
+                            isAbstract: false,
+                        },
+                    ],
+                    interfaces: [],
+                    typeAliases: [],
+                    parseError: false,
+                },
+            ],
+        ])
+
+        it("should include project header", () => {
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("# Project: my-project")
+            expect(context).toContain("Root: /home/user/my-project")
+            expect(context).toContain("Files: 3")
+            expect(context).toContain("Directories: 2")
+        })
+
+        it("should include directory structure", () => {
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("## Structure")
+            expect(context).toContain("src/")
+            expect(context).toContain("tests/")
+        })
+
+        it("should include file overview with AST summaries", () => {
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("## Files")
+            expect(context).toContain("src/index.ts")
+            expect(context).toContain("fn: main")
+            expect(context).toContain("src/utils.ts")
+            expect(context).toContain("class: Helper")
+        })
+
+        it("should include file flags from metadata", () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/index.ts",
+                    {
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 75 },
+                        dependencies: [],
+                        dependents: ["a.ts", "b.ts", "c.ts", "d.ts", "e.ts", "f.ts"],
+                        isHub: true,
+                        isEntryPoint: true,
+                        fileType: "source",
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts, metas)
+
+            expect(context).toContain("(hub, entry, complex)")
+        })
+    })
+
+    describe("buildFileContext", () => {
+        const ast: FileAST = {
+            imports: [
+                { name: "fs", from: "node:fs", line: 1, type: "builtin", isDefault: false },
+                { name: "helper", from: "./helper", line: 2, type: "internal", isDefault: true },
+            ],
+            exports: [
+                { name: "main", line: 10, isDefault: false, kind: "function" },
+                { name: "Config", line: 20, isDefault: true, kind: "class" },
+            ],
+            functions: [
+                {
+                    name: "main",
+                    lineStart: 10,
+                    lineEnd: 30,
+                    params: [
+                        { name: "args", optional: false, hasDefault: false },
+                        { name: "options", optional: true, hasDefault: false },
+                    ],
+                    isAsync: true,
+                    isExported: true,
+                },
+            ],
+            classes: [
+                {
+                    name: "Config",
+                    lineStart: 40,
+                    lineEnd: 80,
+                    methods: [
+                        {
+                            name: "load",
+                            lineStart: 50,
+                            lineEnd: 60,
+                            params: [],
+                            isAsync: false,
+                            visibility: "public",
+                            isStatic: false,
+                        },
+                    ],
+                    properties: [],
+                    extends: "BaseConfig",
+                    implements: ["IConfig"],
+                    isExported: true,
+                    isAbstract: false,
+                },
+            ],
+            interfaces: [],
+            typeAliases: [],
+            parseError: false,
+        }
+
+        it("should include file path header", () => {
+            const context = buildFileContext("src/index.ts", ast)
+
+            expect(context).toContain("## src/index.ts")
+        })
+
+        it("should include imports section", () => {
+            const context = buildFileContext("src/index.ts", ast)
+
+            expect(context).toContain("### Imports")
+            expect(context).toContain('fs from "node:fs" (builtin)')
+            expect(context).toContain('helper from "./helper" (internal)')
+        })
+
+        it("should include exports section", () => {
+            const context = buildFileContext("src/index.ts", ast)
+
+            expect(context).toContain("### Exports")
+            expect(context).toContain("function main")
+            expect(context).toContain("class Config (default)")
+        })
+
+        it("should include functions section", () => {
+            const context = buildFileContext("src/index.ts", ast)
+
+            expect(context).toContain("### Functions")
+            expect(context).toContain("async main(args, options)")
+            expect(context).toContain("[10-30]")
+        })
+
+        it("should include classes section with methods", () => {
+            const context = buildFileContext("src/index.ts", ast)
+
+            expect(context).toContain("### Classes")
+            expect(context).toContain("Config extends BaseConfig implements IConfig")
+            expect(context).toContain("[40-80]")
+            expect(context).toContain("load()")
+        })
+
+        it("should include metadata section when provided", () => {
+            const meta: FileMeta = {
+                complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 65 },
+                dependencies: ["a.ts", "b.ts"],
+                dependents: ["c.ts"],
+                isHub: false,
+                isEntryPoint: true,
+                fileType: "source",
+            }
+
+            const context = buildFileContext("src/index.ts", ast, meta)
+
+            expect(context).toContain("### Metadata")
+            expect(context).toContain("LOC: 100")
+            expect(context).toContain("Complexity: 65/100")
+            expect(context).toContain("Dependencies: 2")
+            expect(context).toContain("Dependents: 1")
+        })
+    })
+
+    describe("buildFileContext - edge cases", () => {
+        it("should handle empty imports", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [],
+                classes: [],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("empty.ts", ast)
+
+            expect(context).toContain("## empty.ts")
+            expect(context).not.toContain("### Imports")
+        })
+
+        it("should handle empty exports", () => {
+            const ast: FileAST = {
+                imports: [{ name: "x", from: "./x", line: 1, type: "internal", isDefault: false }],
+                exports: [],
+                functions: [],
+                classes: [],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("no-exports.ts", ast)
+
+            expect(context).toContain("### Imports")
+            expect(context).not.toContain("### Exports")
+        })
+
+        it("should handle empty functions", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [],
+                classes: [
+                    {
+                        name: "MyClass",
+                        lineStart: 1,
+                        lineEnd: 10,
+                        methods: [],
+                        properties: [],
+                        implements: [],
+                        isExported: false,
+                        isAbstract: false,
+                    },
+                ],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("no-functions.ts", ast)
+
+            expect(context).not.toContain("### Functions")
+            expect(context).toContain("### Classes")
+        })
+
+        it("should handle empty classes", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [
+                    {
+                        name: "test",
+                        lineStart: 1,
+                        lineEnd: 5,
+                        params: [],
+                        isAsync: false,
+                        isExported: false,
+                    },
+                ],
+                classes: [],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("no-classes.ts", ast)
+
+            expect(context).toContain("### Functions")
+            expect(context).not.toContain("### Classes")
+        })
+
+        it("should handle class without extends", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [],
+                classes: [
+                    {
+                        name: "Standalone",
+                        lineStart: 1,
+                        lineEnd: 10,
+                        methods: [],
+                        properties: [],
+                        implements: ["IFoo"],
+                        isExported: false,
+                        isAbstract: false,
+                    },
+                ],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("standalone.ts", ast)
+
+            expect(context).toContain("Standalone implements IFoo")
+            expect(context).not.toContain("extends")
+        })
+
+        it("should handle class without implements", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [],
+                classes: [
+                    {
+                        name: "Child",
+                        lineStart: 1,
+                        lineEnd: 10,
+                        methods: [],
+                        properties: [],
+                        extends: "Parent",
+                        implements: [],
+                        isExported: false,
+                        isAbstract: false,
+                    },
+                ],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("child.ts", ast)
+
+            expect(context).toContain("Child extends Parent")
+            expect(context).not.toContain("implements")
+        })
+
+        it("should handle method with private visibility", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [],
+                classes: [
+                    {
+                        name: "WithPrivate",
+                        lineStart: 1,
+                        lineEnd: 20,
+                        methods: [
+                            {
+                                name: "secretMethod",
+                                lineStart: 5,
+                                lineEnd: 10,
+                                params: [],
+                                isAsync: false,
+                                visibility: "private",
+                                isStatic: false,
+                            },
+                        ],
+                        properties: [],
+                        implements: [],
+                        isExported: false,
+                        isAbstract: false,
+                    },
+                ],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("private.ts", ast)
+
+            expect(context).toContain("private secretMethod()")
+        })
+
+        it("should handle non-async function", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [],
+                functions: [
+                    {
+                        name: "syncFn",
+                        lineStart: 1,
+                        lineEnd: 5,
+                        params: [{ name: "x", optional: false, hasDefault: false }],
+                        isAsync: false,
+                        isExported: false,
+                    },
+                ],
+                classes: [],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("sync.ts", ast)
+
+            expect(context).toContain("syncFn(x)")
+            expect(context).not.toContain("async syncFn")
+        })
+
+        it("should handle export without default", () => {
+            const ast: FileAST = {
+                imports: [],
+                exports: [{ name: "foo", line: 1, isDefault: false, kind: "variable" }],
+                functions: [],
+                classes: [],
+                interfaces: [],
+                typeAliases: [],
+                parseError: false,
+            }
+
+            const context = buildFileContext("named-export.ts", ast)
+
+            expect(context).toContain("variable foo")
+            expect(context).not.toContain("(default)")
+        })
+    })
+
+    describe("buildInitialContext - edge cases", () => {
+        it("should handle nested directory names", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: [],
+                directories: ["src/components/ui"],
+            }
+            const asts = new Map<string, FileAST>()
+
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("ui/")
+        })
+
+        it("should handle file with only interfaces", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["types.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "types.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [{ name: "IFoo", lineStart: 1, lineEnd: 5, isExported: true }],
+                        typeAliases: [],
+                        parseError: false,
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("interface: IFoo")
+        })
+
+        it("should handle file with only type aliases", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["types.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "types.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [],
+                        typeAliases: [
+                            { name: "MyType", lineStart: 1, lineEnd: 1, isExported: true },
+                        ],
+                        parseError: false,
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("type: MyType")
+        })
+
+        it("should handle file with no AST content", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["empty.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "empty.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [],
+                        typeAliases: [],
+                        parseError: false,
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("- empty.ts")
+        })
+
+        it("should handle meta with only hub flag", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["hub.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "hub.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [],
+                        typeAliases: [],
+                        parseError: false,
+                    },
+                ],
+            ])
+            const metas = new Map<string, FileMeta>([
+                [
+                    "hub.ts",
+                    {
+                        complexity: { loc: 10, nesting: 1, cyclomaticComplexity: 1, score: 10 },
+                        dependencies: [],
+                        dependents: [],
+                        isHub: true,
+                        isEntryPoint: false,
+                        fileType: "source",
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts, metas)
+
+            expect(context).toContain("(hub)")
+            expect(context).not.toContain("entry")
+            expect(context).not.toContain("complex")
+        })
+
+        it("should handle meta with no flags", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["normal.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "normal.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [],
+                        typeAliases: [],
+                        parseError: false,
+                    },
+                ],
+            ])
+            const metas = new Map<string, FileMeta>([
+                [
+                    "normal.ts",
+                    {
+                        complexity: { loc: 10, nesting: 1, cyclomaticComplexity: 1, score: 10 },
+                        dependencies: [],
+                        dependents: [],
+                        isHub: false,
+                        isEntryPoint: false,
+                        fileType: "source",
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts, metas)
+
+            expect(context).toContain("- normal.ts")
+            expect(context).not.toContain("(hub")
+            expect(context).not.toContain("entry")
+            expect(context).not.toContain("complex")
+        })
+
+        it("should skip files not in AST map", () => {
+            const structure: ProjectStructure = {
+                name: "test",
+                rootPath: "/test",
+                files: ["exists.ts", "missing.ts"],
+                directories: [],
+            }
+            const asts = new Map<string, FileAST>([
+                [
+                    "exists.ts",
+                    {
+                        imports: [],
+                        exports: [],
+                        functions: [],
+                        classes: [],
+                        interfaces: [],
+                        typeAliases: [],
+                        parseError: false,
+                    },
+                ],
+            ])
+
+            const context = buildInitialContext(structure, asts)
+
+            expect(context).toContain("exists.ts")
+            expect(context).not.toContain("missing.ts")
+        })
+    })
+
+    describe("truncateContext", () => {
+        it("should return original context if within limit", () => {
+            const context = "Short context"
+
+            const result = truncateContext(context, 1000)
+
+            expect(result).toBe(context)
+        })
+
+        it("should truncate long context", () => {
+            const context = "a".repeat(1000)
+
+            const result = truncateContext(context, 100)
+
+            expect(result.length).toBeLessThan(500)
+            expect(result).toContain("truncated")
+        })
+
+        it("should break at newline boundary", () => {
+            const context = "Line 1\nLine 2\nLine 3\n" + "a".repeat(1000)
+
+            const result = truncateContext(context, 50)
+
+            expect(result).toContain("truncated")
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/llm/toolDefs.test.ts

@@ -0,0 +1,287 @@
+import { describe, it, expect } from "vitest"
+import {
+    ALL_TOOLS,
+    READ_TOOLS,
+    EDIT_TOOLS,
+    SEARCH_TOOLS,
+    ANALYSIS_TOOLS,
+    GIT_TOOLS,
+    RUN_TOOLS,
+    CONFIRMATION_TOOLS,
+    requiresConfirmation,
+    getToolDef,
+    getToolsByCategory,
+    GET_LINES_TOOL,
+    GET_FUNCTION_TOOL,
+    GET_CLASS_TOOL,
+    GET_STRUCTURE_TOOL,
+    EDIT_LINES_TOOL,
+    CREATE_FILE_TOOL,
+    DELETE_FILE_TOOL,
+    FIND_REFERENCES_TOOL,
+    FIND_DEFINITION_TOOL,
+    GET_DEPENDENCIES_TOOL,
+    GET_DEPENDENTS_TOOL,
+    GET_COMPLEXITY_TOOL,
+    GET_TODOS_TOOL,
+    GIT_STATUS_TOOL,
+    GIT_DIFF_TOOL,
+    GIT_COMMIT_TOOL,
+    RUN_COMMAND_TOOL,
+    RUN_TESTS_TOOL,
+} from "../../../../src/infrastructure/llm/toolDefs.js"
+
+describe("toolDefs", () => {
+    describe("ALL_TOOLS", () => {
+        it("should contain exactly 18 tools", () => {
+            expect(ALL_TOOLS).toHaveLength(18)
+        })
+
+        it("should have unique tool names", () => {
+            const names = ALL_TOOLS.map((t) => t.name)
+            const uniqueNames = new Set(names)
+            expect(uniqueNames.size).toBe(18)
+        })
+
+        it("should have valid structure for all tools", () => {
+            for (const tool of ALL_TOOLS) {
+                expect(tool.name).toBeDefined()
+                expect(typeof tool.name).toBe("string")
+                expect(tool.description).toBeDefined()
+                expect(typeof tool.description).toBe("string")
+                expect(Array.isArray(tool.parameters)).toBe(true)
+            }
+        })
+    })
+
+    describe("READ_TOOLS", () => {
+        it("should contain 4 read tools", () => {
+            expect(READ_TOOLS).toHaveLength(4)
+        })
+
+        it("should include all read tools", () => {
+            expect(READ_TOOLS).toContain(GET_LINES_TOOL)
+            expect(READ_TOOLS).toContain(GET_FUNCTION_TOOL)
+            expect(READ_TOOLS).toContain(GET_CLASS_TOOL)
+            expect(READ_TOOLS).toContain(GET_STRUCTURE_TOOL)
+        })
+    })
+
+    describe("EDIT_TOOLS", () => {
+        it("should contain 3 edit tools", () => {
+            expect(EDIT_TOOLS).toHaveLength(3)
+        })
+
+        it("should include all edit tools", () => {
+            expect(EDIT_TOOLS).toContain(EDIT_LINES_TOOL)
+            expect(EDIT_TOOLS).toContain(CREATE_FILE_TOOL)
+            expect(EDIT_TOOLS).toContain(DELETE_FILE_TOOL)
+        })
+    })
+
+    describe("SEARCH_TOOLS", () => {
+        it("should contain 2 search tools", () => {
+            expect(SEARCH_TOOLS).toHaveLength(2)
+        })
+
+        it("should include all search tools", () => {
+            expect(SEARCH_TOOLS).toContain(FIND_REFERENCES_TOOL)
+            expect(SEARCH_TOOLS).toContain(FIND_DEFINITION_TOOL)
+        })
+    })
+
+    describe("ANALYSIS_TOOLS", () => {
+        it("should contain 4 analysis tools", () => {
+            expect(ANALYSIS_TOOLS).toHaveLength(4)
+        })
+
+        it("should include all analysis tools", () => {
+            expect(ANALYSIS_TOOLS).toContain(GET_DEPENDENCIES_TOOL)
+            expect(ANALYSIS_TOOLS).toContain(GET_DEPENDENTS_TOOL)
+            expect(ANALYSIS_TOOLS).toContain(GET_COMPLEXITY_TOOL)
+            expect(ANALYSIS_TOOLS).toContain(GET_TODOS_TOOL)
+        })
+    })
+
+    describe("GIT_TOOLS", () => {
+        it("should contain 3 git tools", () => {
+            expect(GIT_TOOLS).toHaveLength(3)
+        })
+
+        it("should include all git tools", () => {
+            expect(GIT_TOOLS).toContain(GIT_STATUS_TOOL)
+            expect(GIT_TOOLS).toContain(GIT_DIFF_TOOL)
+            expect(GIT_TOOLS).toContain(GIT_COMMIT_TOOL)
+        })
+    })
+
+    describe("RUN_TOOLS", () => {
+        it("should contain 2 run tools", () => {
+            expect(RUN_TOOLS).toHaveLength(2)
+        })
+
+        it("should include all run tools", () => {
+            expect(RUN_TOOLS).toContain(RUN_COMMAND_TOOL)
+            expect(RUN_TOOLS).toContain(RUN_TESTS_TOOL)
+        })
+    })
+
+    describe("individual tool definitions", () => {
+        describe("GET_LINES_TOOL", () => {
+            it("should have correct name", () => {
+                expect(GET_LINES_TOOL.name).toBe("get_lines")
+            })
+
+            it("should have required path parameter", () => {
+                const pathParam = GET_LINES_TOOL.parameters.find((p) => p.name === "path")
+                expect(pathParam).toBeDefined()
+                expect(pathParam?.required).toBe(true)
+            })
+
+            it("should have optional start and end parameters", () => {
+                const startParam = GET_LINES_TOOL.parameters.find((p) => p.name === "start")
+                const endParam = GET_LINES_TOOL.parameters.find((p) => p.name === "end")
+                expect(startParam?.required).toBe(false)
+                expect(endParam?.required).toBe(false)
+            })
+        })
+
+        describe("EDIT_LINES_TOOL", () => {
+            it("should have all required parameters", () => {
+                const requiredParams = EDIT_LINES_TOOL.parameters.filter((p) => p.required)
+                const names = requiredParams.map((p) => p.name)
+                expect(names).toContain("path")
+                expect(names).toContain("start")
+                expect(names).toContain("end")
+                expect(names).toContain("content")
+            })
+        })
+
+        describe("GIT_STATUS_TOOL", () => {
+            it("should have no required parameters", () => {
+                expect(GIT_STATUS_TOOL.parameters).toHaveLength(0)
+            })
+        })
+
+        describe("GET_TODOS_TOOL", () => {
+            it("should have enum for type parameter", () => {
+                const typeParam = GET_TODOS_TOOL.parameters.find((p) => p.name === "type")
+                expect(typeParam?.enum).toEqual(["TODO", "FIXME", "HACK", "XXX"])
+            })
+        })
+    })
+
+    describe("CONFIRMATION_TOOLS", () => {
+        it("should be a Set", () => {
+            expect(CONFIRMATION_TOOLS instanceof Set).toBe(true)
+        })
+
+        it("should contain edit and git_commit tools", () => {
+            expect(CONFIRMATION_TOOLS.has("edit_lines")).toBe(true)
+            expect(CONFIRMATION_TOOLS.has("create_file")).toBe(true)
+            expect(CONFIRMATION_TOOLS.has("delete_file")).toBe(true)
+            expect(CONFIRMATION_TOOLS.has("git_commit")).toBe(true)
+        })
+
+        it("should not contain read tools", () => {
+            expect(CONFIRMATION_TOOLS.has("get_lines")).toBe(false)
+            expect(CONFIRMATION_TOOLS.has("get_function")).toBe(false)
+        })
+    })
+
+    describe("requiresConfirmation", () => {
+        it("should return true for edit tools", () => {
+            expect(requiresConfirmation("edit_lines")).toBe(true)
+            expect(requiresConfirmation("create_file")).toBe(true)
+            expect(requiresConfirmation("delete_file")).toBe(true)
+        })
+
+        it("should return true for git_commit", () => {
+            expect(requiresConfirmation("git_commit")).toBe(true)
+        })
+
+        it("should return false for read tools", () => {
+            expect(requiresConfirmation("get_lines")).toBe(false)
+            expect(requiresConfirmation("get_function")).toBe(false)
+            expect(requiresConfirmation("get_structure")).toBe(false)
+        })
+
+        it("should return false for analysis tools", () => {
+            expect(requiresConfirmation("get_dependencies")).toBe(false)
+            expect(requiresConfirmation("get_complexity")).toBe(false)
+        })
+
+        it("should return false for unknown tools", () => {
+            expect(requiresConfirmation("unknown_tool")).toBe(false)
+        })
+    })
+
+    describe("getToolDef", () => {
+        it("should return tool definition by name", () => {
+            const tool = getToolDef("get_lines")
+            expect(tool).toBe(GET_LINES_TOOL)
+        })
+
+        it("should return undefined for unknown tool", () => {
+            const tool = getToolDef("unknown_tool")
+            expect(tool).toBeUndefined()
+        })
+
+        it("should find all 18 tools", () => {
+            const names = [
+                "get_lines",
+                "get_function",
+                "get_class",
+                "get_structure",
+                "edit_lines",
+                "create_file",
+                "delete_file",
+                "find_references",
+                "find_definition",
+                "get_dependencies",
+                "get_dependents",
+                "get_complexity",
+                "get_todos",
+                "git_status",
+                "git_diff",
+                "git_commit",
+                "run_command",
+                "run_tests",
+            ]
+
+            for (const name of names) {
+                expect(getToolDef(name)).toBeDefined()
+            }
+        })
+    })
+
+    describe("getToolsByCategory", () => {
+        it("should return read tools", () => {
+            expect(getToolsByCategory("read")).toBe(READ_TOOLS)
+        })
+
+        it("should return edit tools", () => {
+            expect(getToolsByCategory("edit")).toBe(EDIT_TOOLS)
+        })
+
+        it("should return search tools", () => {
+            expect(getToolsByCategory("search")).toBe(SEARCH_TOOLS)
+        })
+
+        it("should return analysis tools", () => {
+            expect(getToolsByCategory("analysis")).toBe(ANALYSIS_TOOLS)
+        })
+
+        it("should return git tools", () => {
+            expect(getToolsByCategory("git")).toBe(GIT_TOOLS)
+        })
+
+        it("should return run tools", () => {
+            expect(getToolsByCategory("run")).toBe(RUN_TOOLS)
+        })
+
+        it("should return empty array for unknown category", () => {
+            expect(getToolsByCategory("unknown")).toEqual([])
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/security/PathValidator.test.ts

@@ -0,0 +1,320 @@
+import { describe, it, expect, beforeEach, afterEach } from "vitest"
+import * as path from "node:path"
+import * as fs from "node:fs/promises"
+import * as os from "node:os"
+import {
+    PathValidator,
+    createPathValidator,
+    validatePath,
+} from "../../../../src/infrastructure/security/PathValidator.js"
+
+describe("PathValidator", () => {
+    let validator: PathValidator
+    let tempDir: string
+    let projectRoot: string
+
+    beforeEach(async () => {
+        tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "pathvalidator-test-"))
+        projectRoot = path.join(tempDir, "project")
+        await fs.mkdir(projectRoot)
+        validator = new PathValidator(projectRoot)
+    })
+
+    afterEach(async () => {
+        await fs.rm(tempDir, { recursive: true, force: true })
+    })
+
+    describe("constructor", () => {
+        it("should resolve project root to absolute path", () => {
+            const relativeValidator = new PathValidator("./project")
+            expect(relativeValidator.getProjectRoot()).toBe(path.resolve("./project"))
+        })
+
+        it("should store project root", () => {
+            expect(validator.getProjectRoot()).toBe(projectRoot)
+        })
+    })
+
+    describe("validateSync", () => {
+        it("should validate relative path within project", () => {
+            const result = validator.validateSync("src/file.ts")
+            expect(result.status).toBe("valid")
+            expect(result.absolutePath).toBe(path.join(projectRoot, "src/file.ts"))
+            expect(result.relativePath).toBe(path.join("src", "file.ts"))
+        })
+
+        it("should validate nested relative paths", () => {
+            const result = validator.validateSync("src/components/Button.tsx")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should validate root level files", () => {
+            const result = validator.validateSync("package.json")
+            expect(result.status).toBe("valid")
+            expect(result.relativePath).toBe("package.json")
+        })
+
+        it("should reject empty path", () => {
+            const result = validator.validateSync("")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path is empty")
+        })
+
+        it("should reject whitespace-only path", () => {
+            const result = validator.validateSync("   ")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path is empty")
+        })
+
+        it("should reject path with .. traversal", () => {
+            const result = validator.validateSync("../outside")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path contains traversal patterns")
+        })
+
+        it("should reject path with embedded .. traversal", () => {
+            const result = validator.validateSync("src/../../../etc/passwd")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path contains traversal patterns")
+        })
+
+        it("should reject path starting with tilde", () => {
+            const result = validator.validateSync("~/secret/file")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path contains traversal patterns")
+        })
+
+        it("should reject absolute path outside project", () => {
+            const result = validator.validateSync("/etc/passwd")
+            expect(result.status).toBe("outside_project")
+            expect(result.reason).toBe("Path is outside project root")
+        })
+
+        it("should accept absolute path inside project", () => {
+            const absoluteInside = path.join(projectRoot, "src/file.ts")
+            const result = validator.validateSync(absoluteInside)
+            expect(result.status).toBe("valid")
+        })
+
+        it("should trim whitespace from path", () => {
+            const result = validator.validateSync("  src/file.ts  ")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle Windows-style backslashes", () => {
+            const result = validator.validateSync("src\\components\\file.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should reject path that resolves outside via symlink-like patterns", () => {
+            const result = validator.validateSync("src/./../../etc")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path contains traversal patterns")
+        })
+    })
+
+    describe("validate (async)", () => {
+        beforeEach(async () => {
+            await fs.mkdir(path.join(projectRoot, "src"), { recursive: true })
+            await fs.writeFile(path.join(projectRoot, "src/file.ts"), "// content")
+            await fs.mkdir(path.join(projectRoot, "dist"), { recursive: true })
+        })
+
+        it("should validate existing file", async () => {
+            const result = await validator.validate("src/file.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should reject non-existent file by default", async () => {
+            const result = await validator.validate("src/nonexistent.ts")
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path does not exist")
+        })
+
+        it("should allow non-existent file with allowNonExistent option", async () => {
+            const result = await validator.validate("src/newfile.ts", { allowNonExistent: true })
+            expect(result.status).toBe("valid")
+        })
+
+        it("should validate directory when requireDirectory is true", async () => {
+            const result = await validator.validate("src", { requireDirectory: true })
+            expect(result.status).toBe("valid")
+        })
+
+        it("should reject file when requireDirectory is true", async () => {
+            const result = await validator.validate("src/file.ts", { requireDirectory: true })
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path is not a directory")
+        })
+
+        it("should validate file when requireFile is true", async () => {
+            const result = await validator.validate("src/file.ts", { requireFile: true })
+            expect(result.status).toBe("valid")
+        })
+
+        it("should reject directory when requireFile is true", async () => {
+            const result = await validator.validate("src", { requireFile: true })
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path is not a file")
+        })
+
+        it("should handle permission errors gracefully", async () => {
+            const result = await validator.validate("src/../../../root/secret")
+            expect(result.status).toBe("invalid")
+        })
+
+        it("should still check traversal before existence", async () => {
+            const result = await validator.validate("../outside", { allowNonExistent: true })
+            expect(result.status).toBe("invalid")
+            expect(result.reason).toBe("Path contains traversal patterns")
+        })
+    })
+
+    describe("isWithin", () => {
+        it("should return true for path within project", () => {
+            expect(validator.isWithin("src/file.ts")).toBe(true)
+        })
+
+        it("should return true for project root itself", () => {
+            expect(validator.isWithin(".")).toBe(true)
+            expect(validator.isWithin("")).toBe(false)
+        })
+
+        it("should return false for path outside project", () => {
+            expect(validator.isWithin("/etc/passwd")).toBe(false)
+        })
+
+        it("should return false for traversal path", () => {
+            expect(validator.isWithin("../outside")).toBe(false)
+        })
+
+        it("should return false for empty path", () => {
+            expect(validator.isWithin("")).toBe(false)
+        })
+
+        it("should return false for tilde path", () => {
+            expect(validator.isWithin("~/file")).toBe(false)
+        })
+    })
+
+    describe("resolve", () => {
+        it("should resolve valid relative path to absolute", () => {
+            const result = validator.resolve("src/file.ts")
+            expect(result).toBe(path.join(projectRoot, "src/file.ts"))
+        })
+
+        it("should return null for invalid path", () => {
+            expect(validator.resolve("../outside")).toBeNull()
+        })
+
+        it("should return null for empty path", () => {
+            expect(validator.resolve("")).toBeNull()
+        })
+
+        it("should return null for path outside project", () => {
+            expect(validator.resolve("/etc/passwd")).toBeNull()
+        })
+    })
+
+    describe("relativize", () => {
+        it("should return relative path for valid input", () => {
+            const result = validator.relativize("src/file.ts")
+            expect(result).toBe(path.join("src", "file.ts"))
+        })
+
+        it("should handle absolute path within project", () => {
+            const absolutePath = path.join(projectRoot, "src/file.ts")
+            const result = validator.relativize(absolutePath)
+            expect(result).toBe(path.join("src", "file.ts"))
+        })
+
+        it("should return null for path outside project", () => {
+            expect(validator.relativize("/etc/passwd")).toBeNull()
+        })
+
+        it("should return null for traversal path", () => {
+            expect(validator.relativize("../outside")).toBeNull()
+        })
+    })
+
+    describe("edge cases", () => {
+        it("should handle path with multiple slashes", () => {
+            const result = validator.validateSync("src///file.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle path with dots in filename", () => {
+            const result = validator.validateSync("src/file.test.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle hidden files", () => {
+            const result = validator.validateSync(".gitignore")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle hidden directories", () => {
+            const result = validator.validateSync(".github/workflows/ci.yml")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle single dot current directory", () => {
+            const result = validator.validateSync("./src/file.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle project root as path", () => {
+            const result = validator.validateSync(projectRoot)
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle unicode characters in path", () => {
+            const result = validator.validateSync("src/файл.ts")
+            expect(result.status).toBe("valid")
+        })
+
+        it("should handle spaces in path", () => {
+            const result = validator.validateSync("src/my file.ts")
+            expect(result.status).toBe("valid")
+        })
+    })
+})
+
+describe("createPathValidator", () => {
+    it("should create PathValidator instance", () => {
+        const validator = createPathValidator("/tmp/project")
+        expect(validator).toBeInstanceOf(PathValidator)
+        expect(validator.getProjectRoot()).toBe("/tmp/project")
+    })
+})
+
+describe("validatePath", () => {
+    let tempDir: string
+    let projectRoot: string
+
+    beforeEach(async () => {
+        tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "validatepath-test-"))
+        projectRoot = path.join(tempDir, "project")
+        await fs.mkdir(projectRoot)
+    })
+
+    afterEach(async () => {
+        await fs.rm(tempDir, { recursive: true, force: true })
+    })
+
+    it("should return true for valid path", () => {
+        expect(validatePath("src/file.ts", projectRoot)).toBe(true)
+    })
+
+    it("should return false for traversal path", () => {
+        expect(validatePath("../outside", projectRoot)).toBe(false)
+    })
+
+    it("should return false for path outside project", () => {
+        expect(validatePath("/etc/passwd", projectRoot)).toBe(false)
+    })
+
+    it("should return false for empty path", () => {
+        expect(validatePath("", projectRoot)).toBe(false)
+    })
+})

packages/ipuaro/tests/unit/infrastructure/storage/RedisSessionStorage.test.ts

@@ -0,0 +1,390 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import { RedisSessionStorage } from "../../../../src/infrastructure/storage/RedisSessionStorage.js"
+import { RedisClient } from "../../../../src/infrastructure/storage/RedisClient.js"
+import { Session } from "../../../../src/domain/entities/Session.js"
+import type { UndoEntry } from "../../../../src/domain/value-objects/UndoEntry.js"
+import { SessionKeys, SessionFields } from "../../../../src/infrastructure/storage/schema.js"
+
+describe("RedisSessionStorage", () => {
+    let storage: RedisSessionStorage
+    let mockRedis: {
+        hset: ReturnType<typeof vi.fn>
+        hget: ReturnType<typeof vi.fn>
+        hgetall: ReturnType<typeof vi.fn>
+        del: ReturnType<typeof vi.fn>
+        lrange: ReturnType<typeof vi.fn>
+        lpush: ReturnType<typeof vi.fn>
+        lpos: ReturnType<typeof vi.fn>
+        lrem: ReturnType<typeof vi.fn>
+        rpush: ReturnType<typeof vi.fn>
+        rpop: ReturnType<typeof vi.fn>
+        llen: ReturnType<typeof vi.fn>
+        lpop: ReturnType<typeof vi.fn>
+        exists: ReturnType<typeof vi.fn>
+        pipeline: ReturnType<typeof vi.fn>
+    }
+    let mockClient: RedisClient
+
+    beforeEach(() => {
+        mockRedis = {
+            hset: vi.fn().mockResolvedValue(1),
+            hget: vi.fn().mockResolvedValue(null),
+            hgetall: vi.fn().mockResolvedValue({}),
+            del: vi.fn().mockResolvedValue(1),
+            lrange: vi.fn().mockResolvedValue([]),
+            lpush: vi.fn().mockResolvedValue(1),
+            lpos: vi.fn().mockResolvedValue(null),
+            lrem: vi.fn().mockResolvedValue(1),
+            rpush: vi.fn().mockResolvedValue(1),
+            rpop: vi.fn().mockResolvedValue(null),
+            llen: vi.fn().mockResolvedValue(0),
+            lpop: vi.fn().mockResolvedValue(null),
+            exists: vi.fn().mockResolvedValue(0),
+            pipeline: vi.fn().mockReturnValue({
+                hset: vi.fn().mockReturnThis(),
+                del: vi.fn().mockReturnThis(),
+                exec: vi.fn().mockResolvedValue([]),
+            }),
+        }
+
+        mockClient = {
+            getClient: () => mockRedis,
+            connect: vi.fn(),
+            disconnect: vi.fn(),
+            isConnected: vi.fn().mockReturnValue(true),
+        } as unknown as RedisClient
+
+        storage = new RedisSessionStorage(mockClient)
+    })
+
+    describe("saveSession", () => {
+        it("should save session data to Redis", async () => {
+            const session = new Session("test-session-1", "test-project")
+            session.history = [{ role: "user", content: "Hello", timestamp: Date.now() }]
+
+            await storage.saveSession(session)
+
+            const pipeline = mockRedis.pipeline()
+            expect(pipeline.hset).toHaveBeenCalled()
+            expect(pipeline.exec).toHaveBeenCalled()
+        })
+
+        it("should add session to list if not exists", async () => {
+            const session = new Session("test-session-2", "test-project")
+
+            await storage.saveSession(session)
+
+            expect(mockRedis.lpos).toHaveBeenCalledWith(SessionKeys.list, "test-session-2")
+            expect(mockRedis.lpush).toHaveBeenCalledWith(SessionKeys.list, "test-session-2")
+        })
+
+        it("should not add session to list if already exists", async () => {
+            const session = new Session("existing-session", "test-project")
+            mockRedis.lpos.mockResolvedValue(0)
+
+            await storage.saveSession(session)
+
+            expect(mockRedis.lpush).not.toHaveBeenCalled()
+        })
+    })
+
+    describe("loadSession", () => {
+        it("should return null for non-existent session", async () => {
+            mockRedis.hgetall.mockResolvedValue({})
+
+            const result = await storage.loadSession("non-existent")
+
+            expect(result).toBeNull()
+        })
+
+        it("should load session from Redis", async () => {
+            const sessionData = {
+                [SessionFields.projectName]: "test-project",
+                [SessionFields.createdAt]: "1700000000000",
+                [SessionFields.lastActivityAt]: "1700001000000",
+                [SessionFields.history]: "[]",
+                [SessionFields.context]: JSON.stringify({
+                    filesInContext: [],
+                    tokenUsage: 0,
+                    needsCompression: false,
+                }),
+                [SessionFields.stats]: JSON.stringify({
+                    totalTokens: 0,
+                    totalTimeMs: 0,
+                    toolCalls: 0,
+                    editsApplied: 0,
+                    editsRejected: 0,
+                }),
+                [SessionFields.inputHistory]: "[]",
+            }
+            mockRedis.hgetall.mockResolvedValue(sessionData)
+            mockRedis.lrange.mockResolvedValue([])
+
+            const result = await storage.loadSession("test-session")
+
+            expect(result).not.toBeNull()
+            expect(result?.id).toBe("test-session")
+            expect(result?.projectName).toBe("test-project")
+            expect(result?.createdAt).toBe(1700000000000)
+        })
+
+        it("should load undo stack with session", async () => {
+            const sessionData = {
+                [SessionFields.projectName]: "test-project",
+                [SessionFields.createdAt]: "1700000000000",
+                [SessionFields.lastActivityAt]: "1700001000000",
+                [SessionFields.history]: "[]",
+                [SessionFields.context]: "{}",
+                [SessionFields.stats]: "{}",
+                [SessionFields.inputHistory]: "[]",
+            }
+            const undoEntry: UndoEntry = {
+                id: "undo-1",
+                timestamp: Date.now(),
+                filePath: "test.ts",
+                previousContent: ["old"],
+                newContent: ["new"],
+                description: "Edit",
+            }
+            mockRedis.hgetall.mockResolvedValue(sessionData)
+            mockRedis.lrange.mockResolvedValue([JSON.stringify(undoEntry)])
+
+            const result = await storage.loadSession("test-session")
+
+            expect(result?.undoStack).toHaveLength(1)
+            expect(result?.undoStack[0].id).toBe("undo-1")
+        })
+    })
+
+    describe("deleteSession", () => {
+        it("should delete session data and undo stack", async () => {
+            await storage.deleteSession("test-session")
+
+            expect(mockRedis.del).toHaveBeenCalledWith(SessionKeys.data("test-session"))
+            expect(mockRedis.del).toHaveBeenCalledWith(SessionKeys.undo("test-session"))
+            expect(mockRedis.lrem).toHaveBeenCalledWith(SessionKeys.list, 0, "test-session")
+        })
+    })
+
+    describe("listSessions", () => {
+        it("should return empty array when no sessions", async () => {
+            mockRedis.lrange.mockResolvedValue([])
+
+            const result = await storage.listSessions()
+
+            expect(result).toEqual([])
+        })
+
+        it("should list all sessions", async () => {
+            mockRedis.lrange.mockResolvedValue(["session-1", "session-2"])
+            mockRedis.hgetall.mockImplementation((key: string) => {
+                if (key.includes("session-1")) {
+                    return Promise.resolve({
+                        [SessionFields.projectName]: "project-1",
+                        [SessionFields.createdAt]: "1700000000000",
+                        [SessionFields.lastActivityAt]: "1700001000000",
+                        [SessionFields.history]: "[]",
+                    })
+                }
+                if (key.includes("session-2")) {
+                    return Promise.resolve({
+                        [SessionFields.projectName]: "project-2",
+                        [SessionFields.createdAt]: "1700002000000",
+                        [SessionFields.lastActivityAt]: "1700003000000",
+                        [SessionFields.history]: '[{"role":"user","content":"Hi"}]',
+                    })
+                }
+                return Promise.resolve({})
+            })
+
+            const result = await storage.listSessions()
+
+            expect(result).toHaveLength(2)
+            expect(result[0].id).toBe("session-2")
+            expect(result[1].id).toBe("session-1")
+        })
+
+        it("should filter by project name", async () => {
+            mockRedis.lrange.mockResolvedValue(["session-1", "session-2"])
+            mockRedis.hgetall.mockImplementation((key: string) => {
+                if (key.includes("session-1")) {
+                    return Promise.resolve({
+                        [SessionFields.projectName]: "project-1",
+                        [SessionFields.createdAt]: "1700000000000",
+                        [SessionFields.lastActivityAt]: "1700001000000",
+                        [SessionFields.history]: "[]",
+                    })
+                }
+                if (key.includes("session-2")) {
+                    return Promise.resolve({
+                        [SessionFields.projectName]: "project-2",
+                        [SessionFields.createdAt]: "1700002000000",
+                        [SessionFields.lastActivityAt]: "1700003000000",
+                        [SessionFields.history]: "[]",
+                    })
+                }
+                return Promise.resolve({})
+            })
+
+            const result = await storage.listSessions("project-1")
+
+            expect(result).toHaveLength(1)
+            expect(result[0].projectName).toBe("project-1")
+        })
+    })
+
+    describe("getLatestSession", () => {
+        it("should return null when no sessions", async () => {
+            mockRedis.lrange.mockResolvedValue([])
+
+            const result = await storage.getLatestSession("test-project")
+
+            expect(result).toBeNull()
+        })
+
+        it("should return the most recent session", async () => {
+            mockRedis.lrange.mockImplementation((key: string) => {
+                if (key === SessionKeys.list) {
+                    return Promise.resolve(["session-1"])
+                }
+                return Promise.resolve([])
+            })
+            mockRedis.hgetall.mockResolvedValue({
+                [SessionFields.projectName]: "test-project",
+                [SessionFields.createdAt]: "1700000000000",
+                [SessionFields.lastActivityAt]: "1700001000000",
+                [SessionFields.history]: "[]",
+                [SessionFields.context]: "{}",
+                [SessionFields.stats]: "{}",
+                [SessionFields.inputHistory]: "[]",
+            })
+
+            const result = await storage.getLatestSession("test-project")
+
+            expect(result).not.toBeNull()
+            expect(result?.id).toBe("session-1")
+        })
+    })
+
+    describe("sessionExists", () => {
+        it("should return false for non-existent session", async () => {
+            mockRedis.exists.mockResolvedValue(0)
+
+            const result = await storage.sessionExists("non-existent")
+
+            expect(result).toBe(false)
+        })
+
+        it("should return true for existing session", async () => {
+            mockRedis.exists.mockResolvedValue(1)
+
+            const result = await storage.sessionExists("existing")
+
+            expect(result).toBe(true)
+        })
+    })
+
+    describe("undo stack operations", () => {
+        const undoEntry: UndoEntry = {
+            id: "undo-1",
+            timestamp: Date.now(),
+            filePath: "test.ts",
+            previousContent: ["old"],
+            newContent: ["new"],
+            description: "Edit",
+        }
+
+        describe("pushUndoEntry", () => {
+            it("should push undo entry to stack", async () => {
+                mockRedis.llen.mockResolvedValue(1)
+
+                await storage.pushUndoEntry("session-1", undoEntry)
+
+                expect(mockRedis.rpush).toHaveBeenCalledWith(
+                    SessionKeys.undo("session-1"),
+                    JSON.stringify(undoEntry),
+                )
+            })
+
+            it("should remove oldest entry when stack exceeds limit", async () => {
+                mockRedis.llen.mockResolvedValue(11)
+
+                await storage.pushUndoEntry("session-1", undoEntry)
+
+                expect(mockRedis.lpop).toHaveBeenCalledWith(SessionKeys.undo("session-1"))
+            })
+        })
+
+        describe("popUndoEntry", () => {
+            it("should return null for empty stack", async () => {
+                mockRedis.rpop.mockResolvedValue(null)
+
+                const result = await storage.popUndoEntry("session-1")
+
+                expect(result).toBeNull()
+            })
+
+            it("should pop and return undo entry", async () => {
+                mockRedis.rpop.mockResolvedValue(JSON.stringify(undoEntry))
+
+                const result = await storage.popUndoEntry("session-1")
+
+                expect(result).not.toBeNull()
+                expect(result?.id).toBe("undo-1")
+            })
+        })
+
+        describe("getUndoStack", () => {
+            it("should return empty array for empty stack", async () => {
+                mockRedis.lrange.mockResolvedValue([])
+
+                const result = await storage.getUndoStack("session-1")
+
+                expect(result).toEqual([])
+            })
+
+            it("should return all undo entries", async () => {
+                mockRedis.lrange.mockResolvedValue([
+                    JSON.stringify({ ...undoEntry, id: "undo-1" }),
+                    JSON.stringify({ ...undoEntry, id: "undo-2" }),
+                ])
+
+                const result = await storage.getUndoStack("session-1")
+
+                expect(result).toHaveLength(2)
+                expect(result[0].id).toBe("undo-1")
+                expect(result[1].id).toBe("undo-2")
+            })
+        })
+    })
+
+    describe("touchSession", () => {
+        it("should update last activity timestamp", async () => {
+            const beforeTouch = Date.now()
+
+            await storage.touchSession("session-1")
+
+            expect(mockRedis.hset).toHaveBeenCalledWith(
+                SessionKeys.data("session-1"),
+                SessionFields.lastActivityAt,
+                expect.any(String),
+            )
+
+            const callArgs = mockRedis.hset.mock.calls[0]
+            const timestamp = Number(callArgs[2])
+            expect(timestamp).toBeGreaterThanOrEqual(beforeTouch)
+        })
+    })
+
+    describe("clearAllSessions", () => {
+        it("should clear all session data", async () => {
+            mockRedis.lrange.mockResolvedValue(["session-1", "session-2"])
+
+            await storage.clearAllSessions()
+
+            const pipeline = mockRedis.pipeline()
+            expect(pipeline.del).toHaveBeenCalled()
+            expect(pipeline.exec).toHaveBeenCalled()
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/analysis/GetComplexityTool.test.ts

@@ -0,0 +1,513 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetComplexityTool,
+    type GetComplexityResult,
+} from "../../../../../src/infrastructure/tools/analysis/GetComplexityTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileMeta } from "../../../../../src/domain/value-objects/FileMeta.js"
+
+function createMockFileMeta(partial: Partial<FileMeta> = {}): FileMeta {
+    return {
+        complexity: { loc: 10, nesting: 2, cyclomaticComplexity: 5, score: 25 },
+        dependencies: [],
+        dependents: [],
+        isHub: false,
+        isEntryPoint: false,
+        fileType: "source",
+        ...partial,
+    }
+}
+
+function createMockStorage(metas: Map<string, FileMeta> = new Map()): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(null),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn().mockResolvedValue(null),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn().mockImplementation((p: string) => Promise.resolve(metas.get(p) ?? null)),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(metas),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetComplexityTool", () => {
+    let tool: GetComplexityTool
+
+    beforeEach(() => {
+        tool = new GetComplexityTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_complexity")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("analysis")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(false)
+            expect(tool.parameters[1].name).toBe("limit")
+            expect(tool.parameters[1].required).toBe(false)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("complexity")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for no params", () => {
+            expect(tool.validateParams({})).toBeNull()
+        })
+
+        it("should return null for valid path", () => {
+            expect(tool.validateParams({ path: "src/index.ts" })).toBeNull()
+        })
+
+        it("should return null for valid limit", () => {
+            expect(tool.validateParams({ limit: 10 })).toBeNull()
+        })
+
+        it("should return null for valid path and limit", () => {
+            expect(tool.validateParams({ path: "src", limit: 5 })).toBeNull()
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123 })).toBe("Parameter 'path' must be a string")
+        })
+
+        it("should return error for non-integer limit", () => {
+            expect(tool.validateParams({ limit: 10.5 })).toBe(
+                "Parameter 'limit' must be an integer",
+            )
+        })
+
+        it("should return error for non-number limit", () => {
+            expect(tool.validateParams({ limit: "10" })).toBe(
+                "Parameter 'limit' must be an integer",
+            )
+        })
+
+        it("should return error for limit less than 1", () => {
+            expect(tool.validateParams({ limit: 0 })).toBe("Parameter 'limit' must be at least 1")
+        })
+
+        it("should return error for negative limit", () => {
+            expect(tool.validateParams({ limit: -5 })).toBe("Parameter 'limit' must be at least 1")
+        })
+    })
+
+    describe("execute", () => {
+        it("should return complexity for all files without path", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/a.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 50 },
+                    }),
+                ],
+                [
+                    "src/b.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 2, cyclomaticComplexity: 5, score: 25 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.analyzedPath).toBeNull()
+            expect(data.totalFiles).toBe(2)
+            expect(data.files).toHaveLength(2)
+        })
+
+        it("should sort files by complexity score descending", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/low.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 10, nesting: 1, cyclomaticComplexity: 2, score: 10 },
+                    }),
+                ],
+                [
+                    "src/high.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 200, nesting: 5, cyclomaticComplexity: 25, score: 80 },
+                    }),
+                ],
+                [
+                    "src/mid.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 3, cyclomaticComplexity: 10, score: 40 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.files[0].path).toBe("src/high.ts")
+            expect(data.files[1].path).toBe("src/mid.ts")
+            expect(data.files[2].path).toBe("src/low.ts")
+        })
+
+        it("should filter by path prefix", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/a.ts", createMockFileMeta()],
+                ["src/b.ts", createMockFileMeta()],
+                ["lib/c.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.analyzedPath).toBe("src")
+            expect(data.totalFiles).toBe(2)
+            expect(data.files.every((f) => f.path.startsWith("src/"))).toBe(true)
+        })
+
+        it("should filter by specific file path", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/a.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 15, score: 55 },
+                    }),
+                ],
+                ["src/b.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/a.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.totalFiles).toBe(1)
+            expect(data.files[0].path).toBe("src/a.ts")
+            expect(data.files[0].metrics.score).toBe(55)
+        })
+
+        it("should respect limit parameter", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/a.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 70 },
+                    }),
+                ],
+                [
+                    "src/b.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 2, cyclomaticComplexity: 5, score: 50 },
+                    }),
+                ],
+                [
+                    "src/c.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 20, nesting: 1, cyclomaticComplexity: 2, score: 20 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ limit: 2 }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.totalFiles).toBe(3)
+            expect(data.files).toHaveLength(2)
+            expect(data.files[0].metrics.score).toBe(70)
+            expect(data.files[1].metrics.score).toBe(50)
+        })
+
+        it("should use default limit of 20", async () => {
+            const metas = new Map<string, FileMeta>()
+            for (let i = 0; i < 30; i++) {
+                metas.set(`src/file${String(i)}.ts`, createMockFileMeta())
+            }
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.totalFiles).toBe(30)
+            expect(data.files).toHaveLength(20)
+        })
+
+        it("should calculate average score", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/a.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 60 },
+                    }),
+                ],
+                [
+                    "src/b.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 2, cyclomaticComplexity: 5, score: 40 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.averageScore).toBe(50)
+        })
+
+        it("should calculate summary statistics", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/high.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 200, nesting: 5, cyclomaticComplexity: 25, score: 75 },
+                    }),
+                ],
+                [
+                    "src/medium.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 80, nesting: 3, cyclomaticComplexity: 12, score: 45 },
+                    }),
+                ],
+                [
+                    "src/low.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 20, nesting: 1, cyclomaticComplexity: 3, score: 15 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.summary.highComplexity).toBe(1)
+            expect(data.summary.mediumComplexity).toBe(1)
+            expect(data.summary.lowComplexity).toBe(1)
+        })
+
+        it("should return empty result for empty project", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.totalFiles).toBe(0)
+            expect(data.averageScore).toBe(0)
+            expect(data.files).toEqual([])
+            expect(data.summary).toEqual({
+                highComplexity: 0,
+                mediumComplexity: 0,
+                lowComplexity: 0,
+            })
+        })
+
+        it("should return error for non-existent path", async () => {
+            const metas = new Map<string, FileMeta>([["src/a.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "nonexistent" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("No files found at path")
+        })
+
+        it("should handle absolute paths", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/a.ts", createMockFileMeta()],
+                ["src/b.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "/test/project/src" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.analyzedPath).toBe("src")
+            expect(data.totalFiles).toBe(2)
+        })
+
+        it("should include file metadata", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/hub.ts",
+                    createMockFileMeta({
+                        fileType: "source",
+                        isHub: true,
+                        complexity: { loc: 150, nesting: 4, cyclomaticComplexity: 18, score: 65 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.files[0].fileType).toBe("source")
+            expect(data.files[0].isHub).toBe(true)
+            expect(data.files[0].metrics).toEqual({
+                loc: 150,
+                nesting: 4,
+                cyclomaticComplexity: 18,
+                score: 65,
+            })
+        })
+
+        it("should include callId in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/a.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.callId).toMatch(/^get_complexity-\d+$/)
+        })
+
+        it("should include execution time in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/a.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle storage errors gracefully", async () => {
+            const storage = createMockStorage()
+            ;(storage.getAllMetas as ReturnType<typeof vi.fn>).mockRejectedValue(
+                new Error("Redis connection failed"),
+            )
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Redis connection failed")
+        })
+
+        it("should round average score to 2 decimal places", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/a.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 33 },
+                    }),
+                ],
+                [
+                    "src/b.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 2, cyclomaticComplexity: 5, score: 33 },
+                    }),
+                ],
+                [
+                    "src/c.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 20, nesting: 1, cyclomaticComplexity: 2, score: 34 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.averageScore).toBe(33.33)
+        })
+
+        it("should handle complexity threshold boundaries", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/exact-high.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 200, nesting: 5, cyclomaticComplexity: 20, score: 60 },
+                    }),
+                ],
+                [
+                    "src/exact-medium.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 100, nesting: 3, cyclomaticComplexity: 10, score: 30 },
+                    }),
+                ],
+                [
+                    "src/below-medium.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 50, nesting: 2, cyclomaticComplexity: 5, score: 29 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetComplexityResult
+            expect(data.summary.highComplexity).toBe(1)
+            expect(data.summary.mediumComplexity).toBe(1)
+            expect(data.summary.lowComplexity).toBe(1)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/analysis/GetDependenciesTool.test.ts

@@ -0,0 +1,342 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetDependenciesTool,
+    type GetDependenciesResult,
+} from "../../../../../src/infrastructure/tools/analysis/GetDependenciesTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileMeta } from "../../../../../src/domain/value-objects/FileMeta.js"
+
+function createMockFileMeta(partial: Partial<FileMeta> = {}): FileMeta {
+    return {
+        complexity: { loc: 10, nesting: 2, cyclomaticComplexity: 5, score: 25 },
+        dependencies: [],
+        dependents: [],
+        isHub: false,
+        isEntryPoint: false,
+        fileType: "source",
+        ...partial,
+    }
+}
+
+function createMockStorage(metas: Map<string, FileMeta> = new Map()): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(null),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn().mockResolvedValue(null),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn().mockImplementation((p: string) => Promise.resolve(metas.get(p) ?? null)),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(metas),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetDependenciesTool", () => {
+    let tool: GetDependenciesTool
+
+    beforeEach(() => {
+        tool = new GetDependenciesTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_dependencies")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("analysis")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(1)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("imports")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid path", () => {
+            expect(tool.validateParams({ path: "src/index.ts" })).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({})).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for whitespace-only path", () => {
+            expect(tool.validateParams({ path: "   " })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123 })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        it("should return dependencies for a file", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/index.ts",
+                    createMockFileMeta({
+                        dependencies: ["src/utils.ts", "src/config.ts"],
+                    }),
+                ],
+                ["src/utils.ts", createMockFileMeta({ isHub: true })],
+                ["src/config.ts", createMockFileMeta({ isEntryPoint: true })],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.file).toBe("src/index.ts")
+            expect(data.totalDependencies).toBe(2)
+            expect(data.dependencies).toHaveLength(2)
+        })
+
+        it("should include metadata for each dependency", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/index.ts",
+                    createMockFileMeta({
+                        dependencies: ["src/utils.ts"],
+                    }),
+                ],
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        isHub: true,
+                        isEntryPoint: false,
+                        fileType: "source",
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.dependencies[0]).toEqual({
+                path: "src/utils.ts",
+                exists: true,
+                isEntryPoint: false,
+                isHub: true,
+                fileType: "source",
+            })
+        })
+
+        it("should handle file with no dependencies", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/standalone.ts", createMockFileMeta({ dependencies: [] })],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/standalone.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.totalDependencies).toBe(0)
+            expect(data.dependencies).toEqual([])
+        })
+
+        it("should return error for non-existent file", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "nonexistent.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("File not found or not indexed")
+        })
+
+        it("should handle absolute paths", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/index.ts", createMockFileMeta({ dependencies: [] })],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "/test/project/src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.file).toBe("src/index.ts")
+        })
+
+        it("should mark non-existent dependencies", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/index.ts",
+                    createMockFileMeta({
+                        dependencies: ["src/missing.ts"],
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.dependencies[0].exists).toBe(false)
+            expect(data.dependencies[0].isHub).toBe(false)
+            expect(data.dependencies[0].fileType).toBe("unknown")
+        })
+
+        it("should sort dependencies by path", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/index.ts",
+                    createMockFileMeta({
+                        dependencies: ["src/z.ts", "src/a.ts", "src/m.ts"],
+                    }),
+                ],
+                ["src/z.ts", createMockFileMeta()],
+                ["src/a.ts", createMockFileMeta()],
+                ["src/m.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.dependencies[0].path).toBe("src/a.ts")
+            expect(data.dependencies[1].path).toBe("src/m.ts")
+            expect(data.dependencies[2].path).toBe("src/z.ts")
+        })
+
+        it("should include file type of source file", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "tests/index.test.ts",
+                    createMockFileMeta({
+                        fileType: "test",
+                        dependencies: [],
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "tests/index.test.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.fileType).toBe("test")
+        })
+
+        it("should include callId in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/index.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.callId).toMatch(/^get_dependencies-\d+$/)
+        })
+
+        it("should include execution time in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/index.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle storage errors gracefully", async () => {
+            const storage = createMockStorage()
+            ;(storage.getMeta as ReturnType<typeof vi.fn>).mockRejectedValue(
+                new Error("Redis connection failed"),
+            )
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Redis connection failed")
+        })
+
+        it("should trim path before searching", async () => {
+            const metas = new Map<string, FileMeta>([["src/index.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "  src/index.ts  " }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.file).toBe("src/index.ts")
+        })
+
+        it("should handle many dependencies", async () => {
+            const deps = Array.from({ length: 50 }, (_, i) => `src/dep${String(i)}.ts`)
+            const metas = new Map<string, FileMeta>([
+                ["src/index.ts", createMockFileMeta({ dependencies: deps })],
+                ...deps.map((dep) => [dep, createMockFileMeta()] as [string, FileMeta]),
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/index.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependenciesResult
+            expect(data.totalDependencies).toBe(50)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/analysis/GetDependentsTool.test.ts

@@ -0,0 +1,388 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetDependentsTool,
+    type GetDependentsResult,
+} from "../../../../../src/infrastructure/tools/analysis/GetDependentsTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileMeta } from "../../../../../src/domain/value-objects/FileMeta.js"
+
+function createMockFileMeta(partial: Partial<FileMeta> = {}): FileMeta {
+    return {
+        complexity: { loc: 10, nesting: 2, cyclomaticComplexity: 5, score: 25 },
+        dependencies: [],
+        dependents: [],
+        isHub: false,
+        isEntryPoint: false,
+        fileType: "source",
+        ...partial,
+    }
+}
+
+function createMockStorage(metas: Map<string, FileMeta> = new Map()): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(null),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn().mockResolvedValue(null),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn().mockImplementation((p: string) => Promise.resolve(metas.get(p) ?? null)),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(metas),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetDependentsTool", () => {
+    let tool: GetDependentsTool
+
+    beforeEach(() => {
+        tool = new GetDependentsTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_dependents")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("analysis")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(1)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("import")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid path", () => {
+            expect(tool.validateParams({ path: "src/utils.ts" })).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({})).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for whitespace-only path", () => {
+            expect(tool.validateParams({ path: "   " })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123 })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        it("should return dependents for a file", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        dependents: ["src/index.ts", "src/app.ts"],
+                        isHub: true,
+                    }),
+                ],
+                ["src/index.ts", createMockFileMeta({ isEntryPoint: true })],
+                ["src/app.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.file).toBe("src/utils.ts")
+            expect(data.totalDependents).toBe(2)
+            expect(data.isHub).toBe(true)
+            expect(data.dependents).toHaveLength(2)
+        })
+
+        it("should include metadata for each dependent", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        dependents: ["src/index.ts"],
+                    }),
+                ],
+                [
+                    "src/index.ts",
+                    createMockFileMeta({
+                        isHub: false,
+                        isEntryPoint: true,
+                        fileType: "source",
+                        complexity: { loc: 50, nesting: 3, cyclomaticComplexity: 10, score: 45 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.dependents[0]).toEqual({
+                path: "src/index.ts",
+                isEntryPoint: true,
+                isHub: false,
+                fileType: "source",
+                complexityScore: 45,
+            })
+        })
+
+        it("should handle file with no dependents", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/isolated.ts", createMockFileMeta({ dependents: [] })],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/isolated.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.totalDependents).toBe(0)
+            expect(data.isHub).toBe(false)
+            expect(data.dependents).toEqual([])
+        })
+
+        it("should return error for non-existent file", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "nonexistent.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("File not found or not indexed")
+        })
+
+        it("should handle absolute paths", async () => {
+            const metas = new Map<string, FileMeta>([
+                ["src/utils.ts", createMockFileMeta({ dependents: [] })],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "/test/project/src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.file).toBe("src/utils.ts")
+        })
+
+        it("should handle missing dependent metadata", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        dependents: ["src/missing.ts"],
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.dependents[0].isHub).toBe(false)
+            expect(data.dependents[0].isEntryPoint).toBe(false)
+            expect(data.dependents[0].fileType).toBe("unknown")
+            expect(data.dependents[0].complexityScore).toBe(0)
+        })
+
+        it("should sort dependents by path", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        dependents: ["src/z.ts", "src/a.ts", "src/m.ts"],
+                    }),
+                ],
+                ["src/z.ts", createMockFileMeta()],
+                ["src/a.ts", createMockFileMeta()],
+                ["src/m.ts", createMockFileMeta()],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.dependents[0].path).toBe("src/a.ts")
+            expect(data.dependents[1].path).toBe("src/m.ts")
+            expect(data.dependents[2].path).toBe("src/z.ts")
+        })
+
+        it("should include file type of source file", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/types.ts",
+                    createMockFileMeta({
+                        fileType: "types",
+                        dependents: [],
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/types.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.fileType).toBe("types")
+        })
+
+        it("should correctly identify hub files", async () => {
+            const dependents = Array.from({ length: 10 }, (_, i) => `src/file${String(i)}.ts`)
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/core.ts",
+                    createMockFileMeta({
+                        dependents,
+                        isHub: true,
+                    }),
+                ],
+                ...dependents.map((dep) => [dep, createMockFileMeta()] as [string, FileMeta]),
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/core.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.isHub).toBe(true)
+            expect(data.totalDependents).toBe(10)
+        })
+
+        it("should include callId in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/utils.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.callId).toMatch(/^get_dependents-\d+$/)
+        })
+
+        it("should include execution time in result", async () => {
+            const metas = new Map<string, FileMeta>([["src/utils.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle storage errors gracefully", async () => {
+            const storage = createMockStorage()
+            ;(storage.getMeta as ReturnType<typeof vi.fn>).mockRejectedValue(
+                new Error("Redis connection failed"),
+            )
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Redis connection failed")
+        })
+
+        it("should trim path before searching", async () => {
+            const metas = new Map<string, FileMeta>([["src/utils.ts", createMockFileMeta()]])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "  src/utils.ts  " }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            expect(data.file).toBe("src/utils.ts")
+        })
+
+        it("should include complexity scores for dependents", async () => {
+            const metas = new Map<string, FileMeta>([
+                [
+                    "src/utils.ts",
+                    createMockFileMeta({
+                        dependents: ["src/high.ts", "src/low.ts"],
+                    }),
+                ],
+                [
+                    "src/high.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 200, nesting: 5, cyclomaticComplexity: 20, score: 80 },
+                    }),
+                ],
+                [
+                    "src/low.ts",
+                    createMockFileMeta({
+                        complexity: { loc: 20, nesting: 1, cyclomaticComplexity: 2, score: 10 },
+                    }),
+                ],
+            ])
+            const storage = createMockStorage(metas)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/utils.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetDependentsResult
+            const highDep = data.dependents.find((d) => d.path === "src/high.ts")
+            const lowDep = data.dependents.find((d) => d.path === "src/low.ts")
+            expect(highDep?.complexityScore).toBe(80)
+            expect(lowDep?.complexityScore).toBe(10)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/analysis/GetTodosTool.test.ts

@@ -0,0 +1,583 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetTodosTool,
+    type GetTodosResult,
+} from "../../../../../src/infrastructure/tools/analysis/GetTodosTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileData } from "../../../../../src/domain/value-objects/FileData.js"
+
+function createMockFileData(lines: string[]): FileData {
+    return {
+        lines,
+        hash: "abc123",
+        size: lines.join("\n").length,
+        lastModified: Date.now(),
+    }
+}
+
+function createMockStorage(files: Map<string, FileData> = new Map()): IStorage {
+    return {
+        getFile: vi.fn().mockImplementation((p: string) => Promise.resolve(files.get(p) ?? null)),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(files),
+        getFileCount: vi.fn().mockResolvedValue(files.size),
+        getAST: vi.fn().mockResolvedValue(null),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn().mockResolvedValue(null),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(new Map()),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetTodosTool", () => {
+    let tool: GetTodosTool
+
+    beforeEach(() => {
+        tool = new GetTodosTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_todos")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("analysis")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(false)
+            expect(tool.parameters[1].name).toBe("type")
+            expect(tool.parameters[1].required).toBe(false)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("TODO")
+            expect(tool.description).toContain("FIXME")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for no params", () => {
+            expect(tool.validateParams({})).toBeNull()
+        })
+
+        it("should return null for valid path", () => {
+            expect(tool.validateParams({ path: "src" })).toBeNull()
+        })
+
+        it("should return null for valid type", () => {
+            expect(tool.validateParams({ type: "TODO" })).toBeNull()
+        })
+
+        it("should return null for lowercase type", () => {
+            expect(tool.validateParams({ type: "fixme" })).toBeNull()
+        })
+
+        it("should return null for path and type", () => {
+            expect(tool.validateParams({ path: "src", type: "TODO" })).toBeNull()
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123 })).toBe("Parameter 'path' must be a string")
+        })
+
+        it("should return error for non-string type", () => {
+            expect(tool.validateParams({ type: 123 })).toBe("Parameter 'type' must be a string")
+        })
+
+        it("should return error for invalid type", () => {
+            expect(tool.validateParams({ type: "INVALID" })).toBe(
+                "Parameter 'type' must be one of: TODO, FIXME, HACK, XXX, BUG, NOTE",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        it("should find TODO comments", async () => {
+            const files = new Map<string, FileData>([
+                [
+                    "src/index.ts",
+                    createMockFileData([
+                        "// TODO: implement this",
+                        "function foo() {}",
+                        "// TODO: add tests",
+                    ]),
+                ],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(2)
+            expect(data.todos[0].type).toBe("TODO")
+            expect(data.todos[0].text).toBe("implement this")
+            expect(data.todos[1].text).toBe("add tests")
+        })
+
+        it("should find FIXME comments", async () => {
+            const files = new Map<string, FileData>([
+                [
+                    "src/index.ts",
+                    createMockFileData(["// FIXME: broken logic here", "const x = 1"]),
+                ],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].type).toBe("FIXME")
+            expect(data.todos[0].text).toBe("broken logic here")
+        })
+
+        it("should find HACK comments", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// HACK: temporary workaround"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].type).toBe("HACK")
+        })
+
+        it("should find XXX comments", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// XXX: needs attention"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].type).toBe("XXX")
+        })
+
+        it("should find BUG comments", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// BUG: race condition"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].type).toBe("BUG")
+        })
+
+        it("should find NOTE comments", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// NOTE: important consideration"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].type).toBe("NOTE")
+        })
+
+        it("should find comments in block comments", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["/*", " * TODO: in block comment", " */"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].text).toBe("in block comment")
+        })
+
+        it("should find comments with author annotation", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// TODO(john): fix this"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].text).toBe("fix this")
+        })
+
+        it("should handle TODO without colon", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// TODO implement feature"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].text).toBe("implement feature")
+        })
+
+        it("should filter by type", async () => {
+            const files = new Map<string, FileData>([
+                [
+                    "src/index.ts",
+                    createMockFileData([
+                        "// TODO: task one",
+                        "// FIXME: bug here",
+                        "// TODO: task two",
+                    ]),
+                ],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ type: "TODO" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(2)
+            expect(data.todos.every((t) => t.type === "TODO")).toBe(true)
+        })
+
+        it("should filter by type case-insensitively", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// TODO: task", "// FIXME: bug"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ type: "todo" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].type).toBe("TODO")
+        })
+
+        it("should filter by path", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: in src"])],
+                ["lib/b.ts", createMockFileData(["// TODO: in lib"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.searchedPath).toBe("src")
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].path).toBe("src/a.ts")
+        })
+
+        it("should filter by specific file", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: in a"])],
+                ["src/b.ts", createMockFileData(["// TODO: in b"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "src/a.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].path).toBe("src/a.ts")
+        })
+
+        it("should return error for non-existent path", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: task"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "nonexistent" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("No files found at path")
+        })
+
+        it("should count by type", async () => {
+            const files = new Map<string, FileData>([
+                [
+                    "src/index.ts",
+                    createMockFileData([
+                        "// TODO: task 1",
+                        "// TODO: task 2",
+                        "// FIXME: bug",
+                        "// HACK: workaround",
+                    ]),
+                ],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.byType.TODO).toBe(2)
+            expect(data.byType.FIXME).toBe(1)
+            expect(data.byType.HACK).toBe(1)
+            expect(data.byType.XXX).toBe(0)
+            expect(data.byType.BUG).toBe(0)
+            expect(data.byType.NOTE).toBe(0)
+        })
+
+        it("should count files with todos", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: task"])],
+                ["src/b.ts", createMockFileData(["const x = 1"])],
+                ["src/c.ts", createMockFileData(["// TODO: another task"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.filesWithTodos).toBe(2)
+        })
+
+        it("should sort results by path then line", async () => {
+            const files = new Map<string, FileData>([
+                ["src/b.ts", createMockFileData(["// TODO: b1", "", "// TODO: b2"])],
+                ["src/a.ts", createMockFileData(["// TODO: a1"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].path).toBe("src/a.ts")
+            expect(data.todos[1].path).toBe("src/b.ts")
+            expect(data.todos[1].line).toBe(1)
+            expect(data.todos[2].path).toBe("src/b.ts")
+            expect(data.todos[2].line).toBe(3)
+        })
+
+        it("should include line context", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["    // TODO: indented task"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].context).toBe("// TODO: indented task")
+        })
+
+        it("should return empty result for empty project", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(0)
+            expect(data.filesWithTodos).toBe(0)
+            expect(data.todos).toEqual([])
+        })
+
+        it("should return empty result when no todos found", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["const x = 1", "const y = 2"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(0)
+        })
+
+        it("should handle TODO without description", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// TODO:"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].text).toBe("(no description)")
+        })
+
+        it("should handle absolute paths", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: task"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "/test/project/src" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.searchedPath).toBe("src")
+        })
+
+        it("should find todos with hash comments", async () => {
+            const files = new Map<string, FileData>([
+                ["script.sh", createMockFileData(["# TODO: shell script task"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].text).toBe("shell script task")
+        })
+
+        it("should include callId in result", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.callId).toMatch(/^get_todos-\d+$/)
+        })
+
+        it("should include execution time in result", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle storage errors gracefully", async () => {
+            const storage = createMockStorage()
+            ;(storage.getAllFiles as ReturnType<typeof vi.fn>).mockRejectedValue(
+                new Error("Redis connection failed"),
+            )
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Redis connection failed")
+        })
+
+        it("should find lowercase todo markers", async () => {
+            const files = new Map<string, FileData>([
+                ["src/index.ts", createMockFileData(["// todo: lowercase"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(1)
+            expect(data.todos[0].type).toBe("TODO")
+        })
+
+        it("should handle multiple files with todos", async () => {
+            const files = new Map<string, FileData>([
+                ["src/a.ts", createMockFileData(["// TODO: a1", "// TODO: a2"])],
+                ["src/b.ts", createMockFileData(["// FIXME: b1"])],
+                ["src/c.ts", createMockFileData(["// HACK: c1", "// BUG: c2"])],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.totalTodos).toBe(5)
+            expect(data.filesWithTodos).toBe(3)
+        })
+
+        it("should correctly identify line numbers", async () => {
+            const files = new Map<string, FileData>([
+                [
+                    "src/index.ts",
+                    createMockFileData([
+                        "const a = 1",
+                        "const b = 2",
+                        "// TODO: on line 3",
+                        "const c = 3",
+                    ]),
+                ],
+            ])
+            const storage = createMockStorage(files)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({}, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetTodosResult
+            expect(data.todos[0].line).toBe(3)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/edit/CreateFileTool.test.ts

@@ -0,0 +1,335 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import * as os from "node:os"
+import {
+    CreateFileTool,
+    type CreateFileResult,
+} from "../../../../../src/infrastructure/tools/edit/CreateFileTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import { hashLines } from "../../../../../src/shared/utils/hash.js"
+
+function createMockStorage(): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(null),
+        setFile: vi.fn().mockResolvedValue(undefined),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn(),
+        getFileCount: vi.fn(),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn(),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn(),
+        getSymbolIndex: vi.fn(),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn(),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn(),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(
+    storage?: IStorage,
+    confirmResult = true,
+    projectRoot = "/test/project",
+): ToolContext {
+    return {
+        projectRoot,
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(confirmResult),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("CreateFileTool", () => {
+    let tool: CreateFileTool
+
+    beforeEach(() => {
+        tool = new CreateFileTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("create_file")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("edit")
+        })
+
+        it("should require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(true)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+            expect(tool.parameters[1].name).toBe("content")
+            expect(tool.parameters[1].required).toBe(true)
+        })
+
+        it("should have description mentioning confirmation", () => {
+            expect(tool.description).toContain("confirmation")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid params", () => {
+            expect(
+                tool.validateParams({ path: "src/new-file.ts", content: "const x = 1" }),
+            ).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({ content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "", content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+            expect(tool.validateParams({ path: "   ", content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123, content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for missing content", () => {
+            expect(tool.validateParams({ path: "test.ts" })).toBe(
+                "Parameter 'content' is required and must be a string",
+            )
+        })
+
+        it("should return error for non-string content", () => {
+            expect(tool.validateParams({ path: "test.ts", content: 123 })).toBe(
+                "Parameter 'content' is required and must be a string",
+            )
+        })
+
+        it("should allow empty content string", () => {
+            expect(tool.validateParams({ path: "test.ts", content: "" })).toBeNull()
+        })
+    })
+
+    describe("execute", () => {
+        let tempDir: string
+
+        beforeEach(async () => {
+            tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "create-file-test-"))
+        })
+
+        afterEach(async () => {
+            await fs.rm(tempDir, { recursive: true, force: true })
+        })
+
+        it("should create new file with content", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const content = "line 1\nline 2\nline 3"
+            const result = await tool.execute({ path: "new-file.ts", content }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as CreateFileResult
+            expect(data.path).toBe("new-file.ts")
+            expect(data.lines).toBe(3)
+
+            const filePath = path.join(tempDir, "new-file.ts")
+            const fileContent = await fs.readFile(filePath, "utf-8")
+            expect(fileContent).toBe(content)
+        })
+
+        it("should create directories if they do not exist", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "deep/nested/dir/file.ts", content: "test" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+
+            const filePath = path.join(tempDir, "deep/nested/dir/file.ts")
+            const fileContent = await fs.readFile(filePath, "utf-8")
+            expect(fileContent).toBe("test")
+        })
+
+        it("should call requestConfirmation with diff info", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "new-file.ts", content: "line 1\nline 2" }, ctx)
+
+            expect(ctx.requestConfirmation).toHaveBeenCalledWith(
+                "Create new file: new-file.ts (2 lines)",
+                {
+                    filePath: "new-file.ts",
+                    oldLines: [],
+                    newLines: ["line 1", "line 2"],
+                    startLine: 1,
+                },
+            )
+        })
+
+        it("should cancel creation when confirmation rejected", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, false, tempDir)
+
+            const result = await tool.execute({ path: "new-file.ts", content: "test" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("File creation cancelled by user")
+
+            const filePath = path.join(tempDir, "new-file.ts")
+            await expect(fs.access(filePath)).rejects.toThrow()
+        })
+
+        it("should update storage after creation", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "new-file.ts", content: "line 1\nline 2" }, ctx)
+
+            expect(storage.setFile).toHaveBeenCalledWith(
+                "new-file.ts",
+                expect.objectContaining({
+                    lines: ["line 1", "line 2"],
+                    hash: hashLines(["line 1", "line 2"]),
+                }),
+            )
+        })
+
+        it("should return error for path outside project root", async () => {
+            const ctx = createMockContext(undefined, true, tempDir)
+
+            const result = await tool.execute({ path: "../outside/file.ts", content: "test" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Path contains traversal patterns")
+        })
+
+        it("should return error if file already exists", async () => {
+            const existingFile = path.join(tempDir, "existing.ts")
+            await fs.writeFile(existingFile, "original content", "utf-8")
+
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "existing.ts", content: "new content" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("File already exists: existing.ts")
+
+            const content = await fs.readFile(existingFile, "utf-8")
+            expect(content).toBe("original content")
+        })
+
+        it("should handle empty content", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "empty.ts", content: "" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as CreateFileResult
+            expect(data.lines).toBe(1)
+
+            const filePath = path.join(tempDir, "empty.ts")
+            const fileContent = await fs.readFile(filePath, "utf-8")
+            expect(fileContent).toBe("")
+        })
+
+        it("should handle single line content", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "single.ts", content: "export const x = 1" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const data = result.data as CreateFileResult
+            expect(data.lines).toBe(1)
+        })
+
+        it("should return correct file size", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const content = "hello world"
+            const result = await tool.execute({ path: "file.ts", content }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as CreateFileResult
+            expect(data.size).toBe(Buffer.byteLength(content, "utf-8"))
+        })
+
+        it("should include callId in result", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "new.ts", content: "test" }, ctx)
+
+            expect(result.callId).toMatch(/^create_file-\d+$/)
+        })
+
+        it("should include executionTimeMs in result", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "new.ts", content: "test" }, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should handle multi-line content correctly", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const content = "import { x } from './x'\n\nexport function foo() {\n  return x\n}\n"
+            const result = await tool.execute({ path: "foo.ts", content }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as CreateFileResult
+            expect(data.lines).toBe(6)
+
+            const filePath = path.join(tempDir, "foo.ts")
+            const fileContent = await fs.readFile(filePath, "utf-8")
+            expect(fileContent).toBe(content)
+        })
+
+        it("should handle special characters in content", async () => {
+            const storage = createMockStorage()
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const content = "const emoji = '🚀'\nconst quote = \"hello 'world'\""
+            const result = await tool.execute({ path: "special.ts", content }, ctx)
+
+            expect(result.success).toBe(true)
+
+            const filePath = path.join(tempDir, "special.ts")
+            const fileContent = await fs.readFile(filePath, "utf-8")
+            expect(fileContent).toBe(content)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/edit/DeleteFileTool.test.ts

@@ -0,0 +1,274 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import * as os from "node:os"
+import {
+    DeleteFileTool,
+    type DeleteFileResult,
+} from "../../../../../src/infrastructure/tools/edit/DeleteFileTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+
+function createMockStorage(fileData: { lines: string[] } | null = null): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(fileData),
+        setFile: vi.fn().mockResolvedValue(undefined),
+        deleteFile: vi.fn().mockResolvedValue(undefined),
+        getAllFiles: vi.fn(),
+        getFileCount: vi.fn(),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn().mockResolvedValue(undefined),
+        getAllASTs: vi.fn(),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn().mockResolvedValue(undefined),
+        getAllMetas: vi.fn(),
+        getSymbolIndex: vi.fn(),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn(),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn(),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(
+    storage?: IStorage,
+    confirmResult = true,
+    projectRoot = "/test/project",
+): ToolContext {
+    return {
+        projectRoot,
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(confirmResult),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("DeleteFileTool", () => {
+    let tool: DeleteFileTool
+
+    beforeEach(() => {
+        tool = new DeleteFileTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("delete_file")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("edit")
+        })
+
+        it("should require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(true)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(1)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+        })
+
+        it("should have description mentioning confirmation", () => {
+            expect(tool.description).toContain("confirmation")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid params", () => {
+            expect(tool.validateParams({ path: "src/file.ts" })).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({})).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+            expect(tool.validateParams({ path: "   " })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123 })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        let tempDir: string
+
+        beforeEach(async () => {
+            tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "delete-file-test-"))
+        })
+
+        afterEach(async () => {
+            await fs.rm(tempDir, { recursive: true, force: true })
+        })
+
+        it("should delete existing file", async () => {
+            const testFile = path.join(tempDir, "to-delete.ts")
+            await fs.writeFile(testFile, "content to delete", "utf-8")
+
+            const storage = createMockStorage({ lines: ["content to delete"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "to-delete.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as DeleteFileResult
+            expect(data.path).toBe("to-delete.ts")
+            expect(data.deleted).toBe(true)
+
+            await expect(fs.access(testFile)).rejects.toThrow()
+        })
+
+        it("should delete file from storage", async () => {
+            const testFile = path.join(tempDir, "to-delete.ts")
+            await fs.writeFile(testFile, "content", "utf-8")
+
+            const storage = createMockStorage({ lines: ["content"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "to-delete.ts" }, ctx)
+
+            expect(storage.deleteFile).toHaveBeenCalledWith("to-delete.ts")
+            expect(storage.deleteAST).toHaveBeenCalledWith("to-delete.ts")
+            expect(storage.deleteMeta).toHaveBeenCalledWith("to-delete.ts")
+        })
+
+        it("should call requestConfirmation with diff info", async () => {
+            const testFile = path.join(tempDir, "to-delete.ts")
+            await fs.writeFile(testFile, "line 1\nline 2", "utf-8")
+
+            const storage = createMockStorage({ lines: ["line 1", "line 2"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "to-delete.ts" }, ctx)
+
+            expect(ctx.requestConfirmation).toHaveBeenCalledWith("Delete file: to-delete.ts", {
+                filePath: "to-delete.ts",
+                oldLines: ["line 1", "line 2"],
+                newLines: [],
+                startLine: 1,
+            })
+        })
+
+        it("should cancel deletion when confirmation rejected", async () => {
+            const testFile = path.join(tempDir, "keep.ts")
+            await fs.writeFile(testFile, "keep this", "utf-8")
+
+            const storage = createMockStorage({ lines: ["keep this"] })
+            const ctx = createMockContext(storage, false, tempDir)
+
+            const result = await tool.execute({ path: "keep.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("File deletion cancelled by user")
+
+            const content = await fs.readFile(testFile, "utf-8")
+            expect(content).toBe("keep this")
+        })
+
+        it("should return error for path outside project root", async () => {
+            const ctx = createMockContext(undefined, true, tempDir)
+
+            const result = await tool.execute({ path: "../outside/file.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Path contains traversal patterns")
+        })
+
+        it("should return error if file does not exist", async () => {
+            const storage = createMockStorage(null)
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "nonexistent.ts" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("File not found: nonexistent.ts")
+        })
+
+        it("should read content from filesystem if not in storage", async () => {
+            const testFile = path.join(tempDir, "not-indexed.ts")
+            await fs.writeFile(testFile, "filesystem content\nline 2", "utf-8")
+
+            const storage = createMockStorage(null)
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "not-indexed.ts" }, ctx)
+
+            expect(ctx.requestConfirmation).toHaveBeenCalledWith(
+                "Delete file: not-indexed.ts",
+                expect.objectContaining({
+                    oldLines: ["filesystem content", "line 2"],
+                }),
+            )
+        })
+
+        it("should include callId in result", async () => {
+            const testFile = path.join(tempDir, "file.ts")
+            await fs.writeFile(testFile, "x", "utf-8")
+
+            const storage = createMockStorage({ lines: ["x"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "file.ts" }, ctx)
+
+            expect(result.callId).toMatch(/^delete_file-\d+$/)
+        })
+
+        it("should include executionTimeMs in result", async () => {
+            const testFile = path.join(tempDir, "file.ts")
+            await fs.writeFile(testFile, "x", "utf-8")
+
+            const storage = createMockStorage({ lines: ["x"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "file.ts" }, ctx)
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should not delete directories", async () => {
+            const dirPath = path.join(tempDir, "some-dir")
+            await fs.mkdir(dirPath)
+
+            const storage = createMockStorage(null)
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "some-dir" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("File not found: some-dir")
+        })
+
+        it("should handle nested file paths", async () => {
+            const nestedDir = path.join(tempDir, "a/b/c")
+            await fs.mkdir(nestedDir, { recursive: true })
+            const testFile = path.join(nestedDir, "file.ts")
+            await fs.writeFile(testFile, "nested", "utf-8")
+
+            const storage = createMockStorage({ lines: ["nested"] })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute({ path: "a/b/c/file.ts" }, ctx)
+
+            expect(result.success).toBe(true)
+            await expect(fs.access(testFile)).rejects.toThrow()
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/edit/EditLinesTool.test.ts

@@ -0,0 +1,493 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest"
+import { promises as fs } from "node:fs"
+import * as path from "node:path"
+import * as os from "node:os"
+import {
+    EditLinesTool,
+    type EditLinesResult,
+} from "../../../../../src/infrastructure/tools/edit/EditLinesTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import { hashLines } from "../../../../../src/shared/utils/hash.js"
+
+function createMockStorage(fileData: { lines: string[]; hash: string } | null = null): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(fileData),
+        setFile: vi.fn().mockResolvedValue(undefined),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn(),
+        getFileCount: vi.fn(),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn(),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn(),
+        getSymbolIndex: vi.fn(),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn(),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn(),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(
+    storage?: IStorage,
+    confirmResult = true,
+    projectRoot = "/test/project",
+): ToolContext {
+    return {
+        projectRoot,
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(confirmResult),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("EditLinesTool", () => {
+    let tool: EditLinesTool
+
+    beforeEach(() => {
+        tool = new EditLinesTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("edit_lines")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("edit")
+        })
+
+        it("should require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(true)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(4)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+            expect(tool.parameters[1].name).toBe("start")
+            expect(tool.parameters[1].required).toBe(true)
+            expect(tool.parameters[2].name).toBe("end")
+            expect(tool.parameters[2].required).toBe(true)
+            expect(tool.parameters[3].name).toBe("content")
+            expect(tool.parameters[3].required).toBe(true)
+        })
+
+        it("should have description mentioning confirmation", () => {
+            expect(tool.description).toContain("confirmation")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid params", () => {
+            expect(
+                tool.validateParams({
+                    path: "src/index.ts",
+                    start: 1,
+                    end: 5,
+                    content: "new content",
+                }),
+            ).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({ start: 1, end: 5, content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "", start: 1, end: 5, content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+            expect(tool.validateParams({ path: "   ", start: 1, end: 5, content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for non-string path", () => {
+            expect(tool.validateParams({ path: 123, start: 1, end: 5, content: "x" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for missing start", () => {
+            expect(tool.validateParams({ path: "test.ts", end: 5, content: "x" })).toBe(
+                "Parameter 'start' is required and must be an integer",
+            )
+        })
+
+        it("should return error for non-integer start", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1.5, end: 5, content: "x" })).toBe(
+                "Parameter 'start' is required and must be an integer",
+            )
+            expect(tool.validateParams({ path: "test.ts", start: "1", end: 5, content: "x" })).toBe(
+                "Parameter 'start' is required and must be an integer",
+            )
+        })
+
+        it("should return error for start < 1", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 0, end: 5, content: "x" })).toBe(
+                "Parameter 'start' must be >= 1",
+            )
+            expect(tool.validateParams({ path: "test.ts", start: -1, end: 5, content: "x" })).toBe(
+                "Parameter 'start' must be >= 1",
+            )
+        })
+
+        it("should return error for missing end", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1, content: "x" })).toBe(
+                "Parameter 'end' is required and must be an integer",
+            )
+        })
+
+        it("should return error for non-integer end", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1, end: 5.5, content: "x" })).toBe(
+                "Parameter 'end' is required and must be an integer",
+            )
+        })
+
+        it("should return error for end < 1", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1, end: 0, content: "x" })).toBe(
+                "Parameter 'end' must be >= 1",
+            )
+        })
+
+        it("should return error for start > end", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 10, end: 5, content: "x" })).toBe(
+                "Parameter 'start' must be <= 'end'",
+            )
+        })
+
+        it("should return error for missing content", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1, end: 5 })).toBe(
+                "Parameter 'content' is required and must be a string",
+            )
+        })
+
+        it("should return error for non-string content", () => {
+            expect(tool.validateParams({ path: "test.ts", start: 1, end: 5, content: 123 })).toBe(
+                "Parameter 'content' is required and must be a string",
+            )
+        })
+
+        it("should allow empty content string", () => {
+            expect(
+                tool.validateParams({ path: "test.ts", start: 1, end: 5, content: "" }),
+            ).toBeNull()
+        })
+    })
+
+    describe("execute", () => {
+        let tempDir: string
+        let testFilePath: string
+
+        beforeEach(async () => {
+            tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "edit-lines-test-"))
+            testFilePath = path.join(tempDir, "test.ts")
+        })
+
+        afterEach(async () => {
+            await fs.rm(tempDir, { recursive: true, force: true })
+        })
+
+        it("should replace lines with new content", async () => {
+            const originalLines = ["line 1", "line 2", "line 3", "line 4", "line 5"]
+            const originalContent = originalLines.join("\n")
+            await fs.writeFile(testFilePath, originalContent, "utf-8")
+
+            const lines = [...originalLines]
+            const hash = hashLines(lines)
+            const storage = createMockStorage({ lines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 2, end: 4, content: "new line A\nnew line B" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const data = result.data as EditLinesResult
+            expect(data.path).toBe("test.ts")
+            expect(data.startLine).toBe(2)
+            expect(data.endLine).toBe(4)
+            expect(data.linesReplaced).toBe(3)
+            expect(data.linesInserted).toBe(2)
+            expect(data.totalLines).toBe(4)
+
+            const newContent = await fs.readFile(testFilePath, "utf-8")
+            expect(newContent).toBe("line 1\nnew line A\nnew line B\nline 5")
+        })
+
+        it("should call requestConfirmation with diff info", async () => {
+            const originalLines = ["line 1", "line 2", "line 3"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "test.ts", start: 2, end: 2, content: "replaced" }, ctx)
+
+            expect(ctx.requestConfirmation).toHaveBeenCalledWith("Replace lines 2-2 in test.ts", {
+                filePath: "test.ts",
+                oldLines: ["line 2"],
+                newLines: ["replaced"],
+                startLine: 2,
+            })
+        })
+
+        it("should cancel edit when confirmation rejected", async () => {
+            const originalLines = ["line 1", "line 2", "line 3"]
+            const originalContent = originalLines.join("\n")
+            await fs.writeFile(testFilePath, originalContent, "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, false, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "changed" },
+                ctx,
+            )
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Edit cancelled by user")
+
+            const content = await fs.readFile(testFilePath, "utf-8")
+            expect(content).toBe(originalContent)
+        })
+
+        it("should update storage after edit", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            await tool.execute({ path: "test.ts", start: 1, end: 1, content: "changed" }, ctx)
+
+            expect(storage.setFile).toHaveBeenCalledWith(
+                "test.ts",
+                expect.objectContaining({
+                    lines: ["changed", "line 2"],
+                    hash: hashLines(["changed", "line 2"]),
+                }),
+            )
+        })
+
+        it("should return error for path outside project root", async () => {
+            const ctx = createMockContext()
+
+            const result = await tool.execute(
+                { path: "../outside/file.ts", start: 1, end: 1, content: "x" },
+                ctx,
+            )
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Path contains traversal patterns")
+        })
+
+        it("should return error when start exceeds file length", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 10, end: 15, content: "x" },
+                ctx,
+            )
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Start line 10 exceeds file length (2 lines)")
+        })
+
+        it("should adjust end to file length if it exceeds", async () => {
+            const originalLines = ["line 1", "line 2", "line 3"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 2, end: 100, content: "new" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const data = result.data as EditLinesResult
+            expect(data.endLine).toBe(3)
+            expect(data.linesReplaced).toBe(2)
+        })
+
+        it("should detect hash conflict", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const oldHash = hashLines(["old content"])
+            const storage = createMockStorage({ lines: originalLines, hash: oldHash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "new" },
+                ctx,
+            )
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe(
+                "File has been modified externally. Please refresh the file before editing.",
+            )
+        })
+
+        it("should allow edit when file not in storage", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const storage = createMockStorage(null)
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "new" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+        })
+
+        it("should handle single line replacement", async () => {
+            const originalLines = ["line 1", "line 2", "line 3"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 2, end: 2, content: "replaced line 2" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const content = await fs.readFile(testFilePath, "utf-8")
+            expect(content).toBe("line 1\nreplaced line 2\nline 3")
+        })
+
+        it("should handle replacing all lines", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 2, content: "completely\nnew\nfile" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const content = await fs.readFile(testFilePath, "utf-8")
+            expect(content).toBe("completely\nnew\nfile")
+        })
+
+        it("should handle inserting more lines than replaced", async () => {
+            const originalLines = ["line 1", "line 2"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "a\nb\nc\nd" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const data = result.data as EditLinesResult
+            expect(data.linesReplaced).toBe(1)
+            expect(data.linesInserted).toBe(4)
+            expect(data.totalLines).toBe(5)
+        })
+
+        it("should handle deleting lines (empty content)", async () => {
+            const originalLines = ["line 1", "line 2", "line 3"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 2, end: 2, content: "" },
+                ctx,
+            )
+
+            expect(result.success).toBe(true)
+            const data = result.data as EditLinesResult
+            expect(data.linesReplaced).toBe(1)
+            expect(data.linesInserted).toBe(1)
+            expect(data.totalLines).toBe(3)
+        })
+
+        it("should include callId in result", async () => {
+            const originalLines = ["line 1"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "new" },
+                ctx,
+            )
+
+            expect(result.callId).toMatch(/^edit_lines-\d+$/)
+        })
+
+        it("should include executionTimeMs in result", async () => {
+            const originalLines = ["line 1"]
+            await fs.writeFile(testFilePath, originalLines.join("\n"), "utf-8")
+
+            const hash = hashLines(originalLines)
+            const storage = createMockStorage({ lines: originalLines, hash })
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "test.ts", start: 1, end: 1, content: "new" },
+                ctx,
+            )
+
+            expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+        })
+
+        it("should return error when file not found", async () => {
+            const storage = createMockStorage(null)
+            const ctx = createMockContext(storage, true, tempDir)
+
+            const result = await tool.execute(
+                { path: "nonexistent.ts", start: 1, end: 1, content: "x" },
+                ctx,
+            )
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("ENOENT")
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/git/GitCommitTool.test.ts

@@ -0,0 +1,390 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GitCommitTool,
+    type GitCommitResult,
+} from "../../../../../src/infrastructure/tools/git/GitCommitTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { SimpleGit, CommitResult, StatusResult } from "simple-git"
+
+function createMockStorage(): IStorage {
+    return {
+        getFile: vi.fn(),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(new Map()),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage, confirmResult: boolean = true): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(confirmResult),
+        onProgress: vi.fn(),
+    }
+}
+
+function createMockStatusResult(overrides: Partial<StatusResult> = {}): StatusResult {
+    return {
+        not_added: [],
+        conflicted: [],
+        created: [],
+        deleted: [],
+        ignored: [],
+        modified: [],
+        renamed: [],
+        files: [],
+        staged: ["file.ts"],
+        ahead: 0,
+        behind: 0,
+        current: "main",
+        tracking: "origin/main",
+        detached: false,
+        isClean: () => false,
+        ...overrides,
+    } as StatusResult
+}
+
+function createMockCommitResult(overrides: Partial<CommitResult> = {}): CommitResult {
+    return {
+        commit: "abc1234",
+        branch: "main",
+        root: false,
+        author: null,
+        summary: {
+            changes: 1,
+            insertions: 5,
+            deletions: 2,
+        },
+        ...overrides,
+    } as CommitResult
+}
+
+function createMockGit(options: {
+    isRepo?: boolean
+    status?: StatusResult
+    commitResult?: CommitResult
+    error?: Error
+    addError?: Error
+}): SimpleGit {
+    const mockGit = {
+        checkIsRepo: vi.fn().mockResolvedValue(options.isRepo ?? true),
+        status: vi.fn().mockResolvedValue(options.status ?? createMockStatusResult()),
+        add: vi.fn(),
+        commit: vi.fn(),
+    }
+
+    if (options.addError) {
+        mockGit.add.mockRejectedValue(options.addError)
+    } else {
+        mockGit.add.mockResolvedValue(undefined)
+    }
+
+    if (options.error) {
+        mockGit.commit.mockRejectedValue(options.error)
+    } else {
+        mockGit.commit.mockResolvedValue(options.commitResult ?? createMockCommitResult())
+    }
+
+    return mockGit as unknown as SimpleGit
+}
+
+describe("GitCommitTool", () => {
+    let tool: GitCommitTool
+
+    beforeEach(() => {
+        tool = new GitCommitTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("git_commit")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("git")
+        })
+
+        it("should require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(true)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("message")
+            expect(tool.parameters[0].required).toBe(true)
+            expect(tool.parameters[1].name).toBe("files")
+            expect(tool.parameters[1].required).toBe(false)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("commit")
+            expect(tool.description).toContain("confirmation")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return error for missing message", () => {
+            expect(tool.validateParams({})).toContain("message")
+            expect(tool.validateParams({})).toContain("required")
+        })
+
+        it("should return error for non-string message", () => {
+            expect(tool.validateParams({ message: 123 })).toContain("message")
+            expect(tool.validateParams({ message: 123 })).toContain("string")
+        })
+
+        it("should return error for empty message", () => {
+            expect(tool.validateParams({ message: "" })).toContain("empty")
+            expect(tool.validateParams({ message: "   " })).toContain("empty")
+        })
+
+        it("should return null for valid message", () => {
+            expect(tool.validateParams({ message: "fix: bug" })).toBeNull()
+        })
+
+        it("should return null for valid message with files", () => {
+            expect(tool.validateParams({ message: "fix: bug", files: ["a.ts", "b.ts"] })).toBeNull()
+        })
+
+        it("should return error for non-array files", () => {
+            expect(tool.validateParams({ message: "fix: bug", files: "a.ts" })).toContain("array")
+        })
+
+        it("should return error for non-string in files array", () => {
+            expect(tool.validateParams({ message: "fix: bug", files: [1, 2] })).toContain("strings")
+        })
+    })
+
+    describe("execute", () => {
+        describe("not a git repository", () => {
+            it("should return error when not in a git repo", async () => {
+                const mockGit = createMockGit({ isRepo: false })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Not a git repository")
+            })
+        })
+
+        describe("nothing to commit", () => {
+            it("should return error when no staged files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ staged: [] }),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Nothing to commit")
+            })
+        })
+
+        describe("with staged files", () => {
+            it("should commit successfully", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ staged: ["file.ts"] }),
+                    commitResult: createMockCommitResult({
+                        commit: "def5678",
+                        branch: "main",
+                        summary: { changes: 1, insertions: 10, deletions: 3 },
+                    }),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "feat: new feature" }, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitCommitResult
+                expect(data.hash).toBe("def5678")
+                expect(data.branch).toBe("main")
+                expect(data.message).toBe("feat: new feature")
+                expect(data.filesChanged).toBe(1)
+                expect(data.insertions).toBe(10)
+                expect(data.deletions).toBe(3)
+            })
+
+            it("should include author when available", async () => {
+                const mockGit = createMockGit({
+                    commitResult: createMockCommitResult({
+                        author: {
+                            name: "Test User",
+                            email: "test@example.com",
+                        },
+                    }),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitCommitResult
+                expect(data.author).toEqual({
+                    name: "Test User",
+                    email: "test@example.com",
+                })
+            })
+        })
+
+        describe("files parameter", () => {
+            it("should stage specified files before commit", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ staged: [] }),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                await toolWithMock.execute({ message: "test", files: ["a.ts", "b.ts"] }, ctx)
+
+                expect(mockGit.add).toHaveBeenCalledWith(["a.ts", "b.ts"])
+            })
+
+            it("should not call add when files is empty", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                await toolWithMock.execute({ message: "test", files: [] }, ctx)
+
+                expect(mockGit.add).not.toHaveBeenCalled()
+            })
+
+            it("should handle add errors", async () => {
+                const mockGit = createMockGit({
+                    addError: new Error("Failed to add files"),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute(
+                    { message: "test", files: ["nonexistent.ts"] },
+                    ctx,
+                )
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Failed to add files")
+            })
+        })
+
+        describe("confirmation", () => {
+            it("should request confirmation before commit", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(ctx.requestConfirmation).toHaveBeenCalled()
+                const confirmMessage = (ctx.requestConfirmation as ReturnType<typeof vi.fn>).mock
+                    .calls[0][0] as string
+                expect(confirmMessage).toContain("Committing")
+                expect(confirmMessage).toContain("test commit")
+            })
+
+            it("should cancel commit when user declines", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext(undefined, false)
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("cancelled")
+                expect(mockGit.commit).not.toHaveBeenCalled()
+            })
+
+            it("should proceed with commit when user confirms", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext(undefined, true)
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(true)
+                expect(mockGit.commit).toHaveBeenCalledWith("test commit")
+            })
+        })
+
+        describe("error handling", () => {
+            it("should handle git command errors", async () => {
+                const mockGit = createMockGit({
+                    error: new Error("Git commit failed"),
+                })
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Git commit failed")
+            })
+
+            it("should handle non-Error exceptions", async () => {
+                const mockGit = {
+                    checkIsRepo: vi.fn().mockResolvedValue(true),
+                    status: vi.fn().mockResolvedValue(createMockStatusResult()),
+                    add: vi.fn(),
+                    commit: vi.fn().mockRejectedValue("string error"),
+                } as unknown as SimpleGit
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toBe("string error")
+            })
+        })
+
+        describe("timing", () => {
+            it("should return timing information", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+            })
+        })
+
+        describe("call id", () => {
+            it("should generate unique call id", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitCommitTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ message: "test commit" }, ctx)
+
+                expect(result.callId).toMatch(/^git_commit-\d+$/)
+            })
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/git/GitDiffTool.test.ts

@@ -0,0 +1,393 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GitDiffTool,
+    type GitDiffResult,
+} from "../../../../../src/infrastructure/tools/git/GitDiffTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { SimpleGit, DiffResult } from "simple-git"
+
+function createMockStorage(): IStorage {
+    return {
+        getFile: vi.fn(),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(new Map()),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+function createMockDiffSummary(overrides: Partial<DiffResult> = {}): DiffResult {
+    return {
+        changed: 0,
+        deletions: 0,
+        insertions: 0,
+        files: [],
+        ...overrides,
+    } as DiffResult
+}
+
+function createMockGit(options: {
+    isRepo?: boolean
+    diffSummary?: DiffResult
+    diff?: string
+    error?: Error
+}): SimpleGit {
+    const mockGit = {
+        checkIsRepo: vi.fn().mockResolvedValue(options.isRepo ?? true),
+        diffSummary: vi.fn(),
+        diff: vi.fn(),
+    }
+
+    if (options.error) {
+        mockGit.diffSummary.mockRejectedValue(options.error)
+    } else {
+        mockGit.diffSummary.mockResolvedValue(options.diffSummary ?? createMockDiffSummary())
+        mockGit.diff.mockResolvedValue(options.diff ?? "")
+    }
+
+    return mockGit as unknown as SimpleGit
+}
+
+describe("GitDiffTool", () => {
+    let tool: GitDiffTool
+
+    beforeEach(() => {
+        tool = new GitDiffTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("git_diff")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("git")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(false)
+            expect(tool.parameters[1].name).toBe("staged")
+            expect(tool.parameters[1].required).toBe(false)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("diff")
+            expect(tool.description).toContain("changes")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for empty params", () => {
+            expect(tool.validateParams({})).toBeNull()
+        })
+
+        it("should return null for valid path", () => {
+            expect(tool.validateParams({ path: "src" })).toBeNull()
+        })
+
+        it("should return null for valid staged", () => {
+            expect(tool.validateParams({ staged: true })).toBeNull()
+            expect(tool.validateParams({ staged: false })).toBeNull()
+        })
+
+        it("should return error for invalid path type", () => {
+            expect(tool.validateParams({ path: 123 })).toContain("path")
+            expect(tool.validateParams({ path: 123 })).toContain("string")
+        })
+
+        it("should return error for invalid staged type", () => {
+            expect(tool.validateParams({ staged: "yes" })).toContain("staged")
+            expect(tool.validateParams({ staged: "yes" })).toContain("boolean")
+        })
+    })
+
+    describe("execute", () => {
+        describe("not a git repository", () => {
+            it("should return error when not in a git repo", async () => {
+                const mockGit = createMockGit({ isRepo: false })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Not a git repository")
+            })
+        })
+
+        describe("no changes", () => {
+            it("should return empty diff for clean repo", async () => {
+                const mockGit = createMockGit({
+                    diffSummary: createMockDiffSummary({ files: [] }),
+                    diff: "",
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.hasChanges).toBe(false)
+                expect(data.files).toHaveLength(0)
+                expect(data.diff).toBe("")
+            })
+        })
+
+        describe("with changes", () => {
+            it("should return diff for modified files", async () => {
+                const mockGit = createMockGit({
+                    diffSummary: createMockDiffSummary({
+                        files: [
+                            { file: "src/index.ts", insertions: 5, deletions: 2, binary: false },
+                        ],
+                        insertions: 5,
+                        deletions: 2,
+                    }),
+                    diff: "diff --git a/src/index.ts",
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.hasChanges).toBe(true)
+                expect(data.files).toHaveLength(1)
+                expect(data.files[0].file).toBe("src/index.ts")
+                expect(data.files[0].insertions).toBe(5)
+                expect(data.files[0].deletions).toBe(2)
+            })
+
+            it("should return multiple files", async () => {
+                const mockGit = createMockGit({
+                    diffSummary: createMockDiffSummary({
+                        files: [
+                            { file: "a.ts", insertions: 1, deletions: 0, binary: false },
+                            { file: "b.ts", insertions: 2, deletions: 1, binary: false },
+                            { file: "c.ts", insertions: 0, deletions: 5, binary: false },
+                        ],
+                        insertions: 3,
+                        deletions: 6,
+                    }),
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.files).toHaveLength(3)
+                expect(data.summary.filesChanged).toBe(3)
+                expect(data.summary.insertions).toBe(3)
+                expect(data.summary.deletions).toBe(6)
+            })
+
+            it("should handle binary files", async () => {
+                const mockGit = createMockGit({
+                    diffSummary: createMockDiffSummary({
+                        files: [{ file: "image.png", insertions: 0, deletions: 0, binary: true }],
+                    }),
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.files[0].binary).toBe(true)
+            })
+        })
+
+        describe("staged parameter", () => {
+            it("should default to false (unstaged)", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.staged).toBe(false)
+                expect(mockGit.diffSummary).toHaveBeenCalledWith([])
+            })
+
+            it("should pass --cached for staged=true", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ staged: true }, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.staged).toBe(true)
+                expect(mockGit.diffSummary).toHaveBeenCalledWith(["--cached"])
+            })
+        })
+
+        describe("path parameter", () => {
+            it("should filter by path", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({ path: "src" }, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.pathFilter).toBe("src")
+                expect(mockGit.diffSummary).toHaveBeenCalledWith(["--", "src"])
+            })
+
+            it("should combine staged and path", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute(
+                    { staged: true, path: "src/index.ts" },
+                    ctx,
+                )
+
+                expect(result.success).toBe(true)
+                expect(mockGit.diffSummary).toHaveBeenCalledWith(["--cached", "--", "src/index.ts"])
+            })
+
+            it("should return null pathFilter when not provided", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.pathFilter).toBeNull()
+            })
+        })
+
+        describe("diff text", () => {
+            it("should include full diff text", async () => {
+                const diffText = `diff --git a/src/index.ts b/src/index.ts
+index abc123..def456 100644
+--- a/src/index.ts
++++ b/src/index.ts
+@@ -1,3 +1,4 @@
++import { foo } from "./foo"
+ export function main() {
+     console.log("hello")
+ }`
+                const mockGit = createMockGit({
+                    diffSummary: createMockDiffSummary({
+                        files: [
+                            { file: "src/index.ts", insertions: 1, deletions: 0, binary: false },
+                        ],
+                    }),
+                    diff: diffText,
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitDiffResult
+                expect(data.diff).toBe(diffText)
+                expect(data.diff).toContain("diff --git")
+                expect(data.diff).toContain("import { foo }")
+            })
+        })
+
+        describe("error handling", () => {
+            it("should handle git command errors", async () => {
+                const mockGit = createMockGit({
+                    error: new Error("Git command failed"),
+                })
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Git command failed")
+            })
+
+            it("should handle non-Error exceptions", async () => {
+                const mockGit = {
+                    checkIsRepo: vi.fn().mockResolvedValue(true),
+                    diffSummary: vi.fn().mockRejectedValue("string error"),
+                } as unknown as SimpleGit
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toBe("string error")
+            })
+        })
+
+        describe("timing", () => {
+            it("should return timing information", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+            })
+        })
+
+        describe("call id", () => {
+            it("should generate unique call id", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitDiffTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.callId).toMatch(/^git_diff-\d+$/)
+            })
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/git/GitStatusTool.test.ts

@@ -0,0 +1,503 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GitStatusTool,
+    type GitStatusResult,
+} from "../../../../../src/infrastructure/tools/git/GitStatusTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { SimpleGit, StatusResult } from "simple-git"
+
+function createMockStorage(): IStorage {
+    return {
+        getFile: vi.fn(),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn().mockResolvedValue(new Map()),
+        getFileCount: vi.fn().mockResolvedValue(0),
+        getAST: vi.fn(),
+        setAST: vi.fn(),
+        deleteAST: vi.fn(),
+        getAllASTs: vi.fn().mockResolvedValue(new Map()),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        deleteMeta: vi.fn(),
+        getAllMetas: vi.fn().mockResolvedValue(new Map()),
+        getSymbolIndex: vi.fn().mockResolvedValue(new Map()),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn().mockResolvedValue({ imports: new Map(), importedBy: new Map() }),
+        setDepsGraph: vi.fn(),
+        getProjectConfig: vi.fn(),
+        setProjectConfig: vi.fn(),
+        connect: vi.fn(),
+        disconnect: vi.fn(),
+        isConnected: vi.fn().mockReturnValue(true),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+function createMockStatusResult(overrides: Partial<StatusResult> = {}): StatusResult {
+    return {
+        not_added: [],
+        conflicted: [],
+        created: [],
+        deleted: [],
+        ignored: [],
+        modified: [],
+        renamed: [],
+        files: [],
+        staged: [],
+        ahead: 0,
+        behind: 0,
+        current: "main",
+        tracking: "origin/main",
+        detached: false,
+        isClean: () => true,
+        ...overrides,
+    } as StatusResult
+}
+
+function createMockGit(options: {
+    isRepo?: boolean
+    status?: StatusResult
+    error?: Error
+}): SimpleGit {
+    const mockGit = {
+        checkIsRepo: vi.fn().mockResolvedValue(options.isRepo ?? true),
+        status: vi.fn(),
+    }
+
+    if (options.error) {
+        mockGit.status.mockRejectedValue(options.error)
+    } else {
+        mockGit.status.mockResolvedValue(options.status ?? createMockStatusResult())
+    }
+
+    return mockGit as unknown as SimpleGit
+}
+
+describe("GitStatusTool", () => {
+    let tool: GitStatusTool
+
+    beforeEach(() => {
+        tool = new GitStatusTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("git_status")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("git")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have no parameters", () => {
+            expect(tool.parameters).toHaveLength(0)
+        })
+
+        it("should have description", () => {
+            expect(tool.description).toContain("git")
+            expect(tool.description).toContain("status")
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for empty params", () => {
+            expect(tool.validateParams({})).toBeNull()
+        })
+
+        it("should return null for any params (no required)", () => {
+            expect(tool.validateParams({ foo: "bar" })).toBeNull()
+        })
+    })
+
+    describe("execute", () => {
+        describe("not a git repository", () => {
+            it("should return error when not in a git repo", async () => {
+                const mockGit = createMockGit({ isRepo: false })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Not a git repository")
+            })
+        })
+
+        describe("clean repository", () => {
+            it("should return clean status", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        current: "main",
+                        tracking: "origin/main",
+                        ahead: 0,
+                        behind: 0,
+                        isClean: () => true,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.branch).toBe("main")
+                expect(data.tracking).toBe("origin/main")
+                expect(data.isClean).toBe(true)
+                expect(data.staged).toHaveLength(0)
+                expect(data.modified).toHaveLength(0)
+                expect(data.untracked).toHaveLength(0)
+            })
+        })
+
+        describe("branch information", () => {
+            it("should return current branch name", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ current: "feature/test" }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.branch).toBe("feature/test")
+            })
+
+            it("should handle detached HEAD", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ current: null }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.branch).toBe("HEAD (detached)")
+            })
+
+            it("should return tracking branch when available", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ tracking: "origin/develop" }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.tracking).toBe("origin/develop")
+            })
+
+            it("should handle no tracking branch", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ tracking: null }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.tracking).toBeNull()
+            })
+
+            it("should return ahead/behind counts", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({ ahead: 3, behind: 1 }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.ahead).toBe(3)
+                expect(data.behind).toBe(1)
+            })
+        })
+
+        describe("staged files", () => {
+            it("should return staged files (new file)", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "new.ts", index: "A", working_dir: " " }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(1)
+                expect(data.staged[0].path).toBe("new.ts")
+                expect(data.staged[0].index).toBe("A")
+            })
+
+            it("should return staged files (modified)", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "src/index.ts", index: "M", working_dir: " " }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(1)
+                expect(data.staged[0].path).toBe("src/index.ts")
+                expect(data.staged[0].index).toBe("M")
+            })
+
+            it("should return staged files (deleted)", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "old.ts", index: "D", working_dir: " " }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(1)
+                expect(data.staged[0].index).toBe("D")
+            })
+
+            it("should return multiple staged files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [
+                            { path: "a.ts", index: "A", working_dir: " " },
+                            { path: "b.ts", index: "M", working_dir: " " },
+                            { path: "c.ts", index: "D", working_dir: " " },
+                        ],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(3)
+            })
+        })
+
+        describe("modified files", () => {
+            it("should return modified unstaged files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "src/app.ts", index: " ", working_dir: "M" }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.modified).toHaveLength(1)
+                expect(data.modified[0].path).toBe("src/app.ts")
+                expect(data.modified[0].workingDir).toBe("M")
+            })
+
+            it("should return deleted unstaged files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "deleted.ts", index: " ", working_dir: "D" }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.modified).toHaveLength(1)
+                expect(data.modified[0].workingDir).toBe("D")
+            })
+        })
+
+        describe("untracked files", () => {
+            it("should return untracked files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        not_added: ["new-file.ts", "another.js"],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.untracked).toContain("new-file.ts")
+                expect(data.untracked).toContain("another.js")
+            })
+        })
+
+        describe("conflicted files", () => {
+            it("should return conflicted files", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        conflicted: ["conflict.ts"],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.conflicted).toContain("conflict.ts")
+            })
+        })
+
+        describe("mixed status", () => {
+            it("should correctly categorize files with both staged and unstaged changes", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "both.ts", index: "M", working_dir: "M" }],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(1)
+                expect(data.modified).toHaveLength(1)
+                expect(data.staged[0].path).toBe("both.ts")
+                expect(data.modified[0].path).toBe("both.ts")
+            })
+
+            it("should not include untracked in staged/modified", async () => {
+                const mockGit = createMockGit({
+                    status: createMockStatusResult({
+                        files: [{ path: "new.ts", index: "?", working_dir: "?" }],
+                        not_added: ["new.ts"],
+                        isClean: () => false,
+                    }),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(true)
+                const data = result.data as GitStatusResult
+                expect(data.staged).toHaveLength(0)
+                expect(data.modified).toHaveLength(0)
+                expect(data.untracked).toContain("new.ts")
+            })
+        })
+
+        describe("error handling", () => {
+            it("should handle git command errors", async () => {
+                const mockGit = createMockGit({
+                    error: new Error("Git command failed"),
+                })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toContain("Git command failed")
+            })
+
+            it("should handle non-Error exceptions", async () => {
+                const mockGit = {
+                    checkIsRepo: vi.fn().mockResolvedValue(true),
+                    status: vi.fn().mockRejectedValue("string error"),
+                } as unknown as SimpleGit
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.success).toBe(false)
+                expect(result.error).toBe("string error")
+            })
+        })
+
+        describe("timing", () => {
+            it("should return timing information", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+            })
+
+            it("should include timing on error", async () => {
+                const mockGit = createMockGit({ error: new Error("fail") })
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.executionTimeMs).toBeGreaterThanOrEqual(0)
+            })
+        })
+
+        describe("call id", () => {
+            it("should generate unique call id", async () => {
+                const mockGit = createMockGit({})
+                const toolWithMock = new GitStatusTool(() => mockGit)
+                const ctx = createMockContext()
+
+                const result = await toolWithMock.execute({}, ctx)
+
+                expect(result.callId).toMatch(/^git_status-\d+$/)
+            })
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/read/GetClassTool.test.ts

@@ -0,0 +1,348 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetClassTool,
+    type GetClassResult,
+} from "../../../../../src/infrastructure/tools/read/GetClassTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileAST, ClassInfo } from "../../../../../src/domain/value-objects/FileAST.js"
+
+function createMockClass(overrides: Partial<ClassInfo> = {}): ClassInfo {
+    return {
+        name: "TestClass",
+        lineStart: 1,
+        lineEnd: 10,
+        methods: [
+            {
+                name: "testMethod",
+                lineStart: 3,
+                lineEnd: 5,
+                params: [],
+                isAsync: false,
+                visibility: "public",
+                isStatic: false,
+            },
+        ],
+        properties: [
+            {
+                name: "testProp",
+                line: 2,
+                visibility: "private",
+                isStatic: false,
+                isReadonly: false,
+            },
+        ],
+        implements: [],
+        isExported: true,
+        isAbstract: false,
+        ...overrides,
+    }
+}
+
+function createMockAST(classes: ClassInfo[] = []): FileAST {
+    return {
+        imports: [],
+        exports: [],
+        functions: [],
+        classes,
+        interfaces: [],
+        typeAliases: [],
+        parseError: false,
+    }
+}
+
+function createMockStorage(
+    fileData: { lines: string[] } | null = null,
+    ast: FileAST | null = null,
+): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(fileData),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn(),
+        getAST: vi.fn().mockResolvedValue(ast),
+        setAST: vi.fn(),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        getSymbolIndex: vi.fn(),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn(),
+        setDepsGraph: vi.fn(),
+        getConfig: vi.fn(),
+        setConfig: vi.fn(),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetClassTool", () => {
+    let tool: GetClassTool
+
+    beforeEach(() => {
+        tool = new GetClassTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_class")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("read")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+            expect(tool.parameters[1].name).toBe("name")
+            expect(tool.parameters[1].required).toBe(true)
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid params", () => {
+            expect(tool.validateParams({ path: "src/index.ts", name: "MyClass" })).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({ name: "MyClass" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "", name: "MyClass" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for missing name", () => {
+            expect(tool.validateParams({ path: "test.ts" })).toBe(
+                "Parameter 'name' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty name", () => {
+            expect(tool.validateParams({ path: "test.ts", name: "" })).toBe(
+                "Parameter 'name' is required and must be a non-empty string",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        it("should return class code with line numbers", async () => {
+            const lines = [
+                "export class TestClass {",
+                "    private testProp: string",
+                "    testMethod() {",
+                "        return this.testProp",
+                "    }",
+                "}",
+            ]
+            const cls = createMockClass({
+                name: "TestClass",
+                lineStart: 1,
+                lineEnd: 6,
+            })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "TestClass" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetClassResult
+            expect(data.path).toBe("test.ts")
+            expect(data.name).toBe("TestClass")
+            expect(data.startLine).toBe(1)
+            expect(data.endLine).toBe(6)
+            expect(data.content).toContain("1│export class TestClass {")
+            expect(data.content).toContain("6│}")
+        })
+
+        it("should return class metadata", async () => {
+            const lines = ["abstract class BaseService extends Service implements IService {", "}"]
+            const cls = createMockClass({
+                name: "BaseService",
+                lineStart: 1,
+                lineEnd: 2,
+                isExported: false,
+                isAbstract: true,
+                extends: "Service",
+                implements: ["IService"],
+                methods: [
+                    {
+                        name: "init",
+                        lineStart: 2,
+                        lineEnd: 2,
+                        params: [],
+                        isAsync: true,
+                        visibility: "public",
+                        isStatic: false,
+                    },
+                    {
+                        name: "destroy",
+                        lineStart: 3,
+                        lineEnd: 3,
+                        params: [],
+                        isAsync: false,
+                        visibility: "protected",
+                        isStatic: false,
+                    },
+                ],
+                properties: [
+                    {
+                        name: "id",
+                        line: 2,
+                        visibility: "private",
+                        isStatic: false,
+                        isReadonly: true,
+                    },
+                ],
+            })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "service.ts", name: "BaseService" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetClassResult
+            expect(data.isExported).toBe(false)
+            expect(data.isAbstract).toBe(true)
+            expect(data.extends).toBe("Service")
+            expect(data.implements).toEqual(["IService"])
+            expect(data.methods).toEqual(["init", "destroy"])
+            expect(data.properties).toEqual(["id"])
+        })
+
+        it("should return error when AST not found", async () => {
+            const storage = createMockStorage({ lines: [] }, null)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "MyClass" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain('AST not found for "test.ts"')
+        })
+
+        it("should return error when class not found", async () => {
+            const ast = createMockAST([
+                createMockClass({ name: "ClassA" }),
+                createMockClass({ name: "ClassB" }),
+            ])
+            const storage = createMockStorage({ lines: [] }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "NonExistent" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain('Class "NonExistent" not found')
+            expect(result.error).toContain("Available: ClassA, ClassB")
+        })
+
+        it("should return error when no classes available", async () => {
+            const ast = createMockAST([])
+            const storage = createMockStorage({ lines: [] }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "MyClass" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("Available: none")
+        })
+
+        it("should return error for path outside project root", async () => {
+            const ctx = createMockContext()
+
+            const result = await tool.execute({ path: "../outside/file.ts", name: "MyClass" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Path contains traversal patterns")
+        })
+
+        it("should handle class with no extends", async () => {
+            const lines = ["class Simple {}"]
+            const cls = createMockClass({
+                name: "Simple",
+                lineStart: 1,
+                lineEnd: 1,
+                extends: undefined,
+            })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "Simple" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetClassResult
+            expect(data.extends).toBeUndefined()
+        })
+
+        it("should handle class with empty implements", async () => {
+            const lines = ["class NoInterfaces {}"]
+            const cls = createMockClass({
+                name: "NoInterfaces",
+                lineStart: 1,
+                lineEnd: 1,
+                implements: [],
+            })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "NoInterfaces" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetClassResult
+            expect(data.implements).toEqual([])
+        })
+
+        it("should handle class with no methods or properties", async () => {
+            const lines = ["class Empty {}"]
+            const cls = createMockClass({
+                name: "Empty",
+                lineStart: 1,
+                lineEnd: 1,
+                methods: [],
+                properties: [],
+            })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "Empty" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetClassResult
+            expect(data.methods).toEqual([])
+            expect(data.properties).toEqual([])
+        })
+
+        it("should include callId in result", async () => {
+            const lines = ["class Test {}"]
+            const cls = createMockClass({ name: "Test", lineStart: 1, lineEnd: 1 })
+            const ast = createMockAST([cls])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "Test" }, ctx)
+
+            expect(result.callId).toMatch(/^get_class-\d+$/)
+        })
+    })
+})

packages/ipuaro/tests/unit/infrastructure/tools/read/GetFunctionTool.test.ts

@@ -0,0 +1,305 @@
+import { describe, it, expect, vi, beforeEach } from "vitest"
+import {
+    GetFunctionTool,
+    type GetFunctionResult,
+} from "../../../../../src/infrastructure/tools/read/GetFunctionTool.js"
+import type { ToolContext } from "../../../../../src/domain/services/ITool.js"
+import type { IStorage } from "../../../../../src/domain/services/IStorage.js"
+import type { FileAST, FunctionInfo } from "../../../../../src/domain/value-objects/FileAST.js"
+
+function createMockFunction(overrides: Partial<FunctionInfo> = {}): FunctionInfo {
+    return {
+        name: "testFunction",
+        lineStart: 1,
+        lineEnd: 5,
+        params: [{ name: "arg1", optional: false, hasDefault: false }],
+        isAsync: false,
+        isExported: true,
+        returnType: "void",
+        ...overrides,
+    }
+}
+
+function createMockAST(functions: FunctionInfo[] = []): FileAST {
+    return {
+        imports: [],
+        exports: [],
+        functions,
+        classes: [],
+        interfaces: [],
+        typeAliases: [],
+        parseError: false,
+    }
+}
+
+function createMockStorage(
+    fileData: { lines: string[] } | null = null,
+    ast: FileAST | null = null,
+): IStorage {
+    return {
+        getFile: vi.fn().mockResolvedValue(fileData),
+        setFile: vi.fn(),
+        deleteFile: vi.fn(),
+        getAllFiles: vi.fn(),
+        getAST: vi.fn().mockResolvedValue(ast),
+        setAST: vi.fn(),
+        getMeta: vi.fn(),
+        setMeta: vi.fn(),
+        getSymbolIndex: vi.fn(),
+        setSymbolIndex: vi.fn(),
+        getDepsGraph: vi.fn(),
+        setDepsGraph: vi.fn(),
+        getConfig: vi.fn(),
+        setConfig: vi.fn(),
+        clear: vi.fn(),
+    } as unknown as IStorage
+}
+
+function createMockContext(storage?: IStorage): ToolContext {
+    return {
+        projectRoot: "/test/project",
+        storage: storage ?? createMockStorage(),
+        requestConfirmation: vi.fn().mockResolvedValue(true),
+        onProgress: vi.fn(),
+    }
+}
+
+describe("GetFunctionTool", () => {
+    let tool: GetFunctionTool
+
+    beforeEach(() => {
+        tool = new GetFunctionTool()
+    })
+
+    describe("metadata", () => {
+        it("should have correct name", () => {
+            expect(tool.name).toBe("get_function")
+        })
+
+        it("should have correct category", () => {
+            expect(tool.category).toBe("read")
+        })
+
+        it("should not require confirmation", () => {
+            expect(tool.requiresConfirmation).toBe(false)
+        })
+
+        it("should have correct parameters", () => {
+            expect(tool.parameters).toHaveLength(2)
+            expect(tool.parameters[0].name).toBe("path")
+            expect(tool.parameters[0].required).toBe(true)
+            expect(tool.parameters[1].name).toBe("name")
+            expect(tool.parameters[1].required).toBe(true)
+        })
+    })
+
+    describe("validateParams", () => {
+        it("should return null for valid params", () => {
+            expect(tool.validateParams({ path: "src/index.ts", name: "myFunc" })).toBeNull()
+        })
+
+        it("should return error for missing path", () => {
+            expect(tool.validateParams({ name: "myFunc" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty path", () => {
+            expect(tool.validateParams({ path: "", name: "myFunc" })).toBe(
+                "Parameter 'path' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for missing name", () => {
+            expect(tool.validateParams({ path: "test.ts" })).toBe(
+                "Parameter 'name' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for empty name", () => {
+            expect(tool.validateParams({ path: "test.ts", name: "" })).toBe(
+                "Parameter 'name' is required and must be a non-empty string",
+            )
+        })
+
+        it("should return error for whitespace-only name", () => {
+            expect(tool.validateParams({ path: "test.ts", name: "   " })).toBe(
+                "Parameter 'name' is required and must be a non-empty string",
+            )
+        })
+    })
+
+    describe("execute", () => {
+        it("should return function code with line numbers", async () => {
+            const lines = [
+                "function testFunction(arg1) {",
+                "    console.log(arg1)",
+                "    return arg1",
+                "}",
+                "",
+            ]
+            const func = createMockFunction({
+                name: "testFunction",
+                lineStart: 1,
+                lineEnd: 4,
+            })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "testFunction" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetFunctionResult
+            expect(data.path).toBe("test.ts")
+            expect(data.name).toBe("testFunction")
+            expect(data.startLine).toBe(1)
+            expect(data.endLine).toBe(4)
+            expect(data.content).toContain("1│function testFunction(arg1) {")
+            expect(data.content).toContain("4│}")
+        })
+
+        it("should return function metadata", async () => {
+            const lines = ["async function fetchData(url, options) {", "    return fetch(url)", "}"]
+            const func = createMockFunction({
+                name: "fetchData",
+                lineStart: 1,
+                lineEnd: 3,
+                isAsync: true,
+                isExported: false,
+                params: [
+                    { name: "url", optional: false, hasDefault: false },
+                    { name: "options", optional: true, hasDefault: false },
+                ],
+                returnType: "Promise<Response>",
+            })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "api.ts", name: "fetchData" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetFunctionResult
+            expect(data.isAsync).toBe(true)
+            expect(data.isExported).toBe(false)
+            expect(data.params).toEqual(["url", "options"])
+            expect(data.returnType).toBe("Promise<Response>")
+        })
+
+        it("should return error when AST not found", async () => {
+            const storage = createMockStorage({ lines: [] }, null)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "myFunc" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain('AST not found for "test.ts"')
+        })
+
+        it("should return error when function not found", async () => {
+            const ast = createMockAST([
+                createMockFunction({ name: "existingFunc" }),
+                createMockFunction({ name: "anotherFunc" }),
+            ])
+            const storage = createMockStorage({ lines: [] }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "nonExistent" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain('Function "nonExistent" not found')
+            expect(result.error).toContain("Available: existingFunc, anotherFunc")
+        })
+
+        it("should return error when no functions available", async () => {
+            const ast = createMockAST([])
+            const storage = createMockStorage({ lines: [] }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "myFunc" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toContain("Available: none")
+        })
+
+        it("should return error for path outside project root", async () => {
+            const ctx = createMockContext()
+
+            const result = await tool.execute({ path: "../outside/file.ts", name: "myFunc" }, ctx)
+
+            expect(result.success).toBe(false)
+            expect(result.error).toBe("Path contains traversal patterns")
+        })
+
+        it("should pad line numbers correctly for large files", async () => {
+            const lines = Array.from({ length: 200 }, (_, i) => `line ${i + 1}`)
+            const func = createMockFunction({
+                name: "bigFunction",
+                lineStart: 95,
+                lineEnd: 105,
+            })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "big.ts", name: "bigFunction" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetFunctionResult
+            expect(data.content).toContain(" 95│line 95")
+            expect(data.content).toContain("100│line 100")
+            expect(data.content).toContain("105│line 105")
+        })
+
+        it("should include callId in result", async () => {
+            const lines = ["function test() {}"]
+            const func = createMockFunction({ name: "test", lineStart: 1, lineEnd: 1 })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "test" }, ctx)
+
+            expect(result.callId).toMatch(/^get_function-\d+$/)
+        })
+
+        it("should handle function with no return type", async () => {
+            const lines = ["function noReturn() {}"]
+            const func = createMockFunction({
+                name: "noReturn",
+                lineStart: 1,
+                lineEnd: 1,
+                returnType: undefined,
+            })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "noReturn" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetFunctionResult
+            expect(data.returnType).toBeUndefined()
+        })
+
+        it("should handle function with no params", async () => {
+            const lines = ["function noParams() {}"]
+            const func = createMockFunction({
+                name: "noParams",
+                lineStart: 1,
+                lineEnd: 1,
+                params: [],
+            })
+            const ast = createMockAST([func])
+            const storage = createMockStorage({ lines }, ast)
+            const ctx = createMockContext(storage)
+
+            const result = await tool.execute({ path: "test.ts", name: "noParams" }, ctx)
+
+            expect(result.success).toBe(true)
+            const data = result.data as GetFunctionResult
+            expect(data.params).toEqual([])
+        })
+    })
+})