feat(ipuaro): add read tools (v0.5.0)

- ToolRegistry: tool lifecycle management, execution with validation - GetLinesTool: read file lines with line numbers - GetFunctionTool: get function source using AST - GetClassTool: get class source using AST - GetStructureTool: directory tree with filtering 121 new tests, 540 total
feat(ipuaro): add LLM integration module
2025-12-28 07:16:53 +05:00 · 2025-12-01 00:52:00 +05:00 · 2025-12-01 00:10:11 +05:00 · 2025-11-30 01:53:57 +05:00 · 2025-11-30 01:50:33 +05:00 · 2025-11-30 01:50:21 +05:00
152 changed files with 21247 additions and 1313 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -86,3 +86,4 @@ Thumbs.db

 # Yarn Integrity file
 .yarn-integrity
+packages/guardian/docs/STRATEGIC_ANALYSIS_2025-11.md
--- a/.gitmessage
+++ b/.gitmessage
@@ -1,9 +1,17 @@
-# <type>: <subject>
+# <type>(<package>): <subject>
 #
 # <body>
 #
 # <footer>

+# Format:
+# - Package changes: <type>(<package>): <subject>
+#   Examples: feat(guardian): add detector
+#             fix(ipuaro): resolve memory leak
+# - Root changes:    <type>: <subject>
+#   Examples: chore: update eslint config
+#             docs: update root README
+
 # Type should be one of the following:
 # * feat: A new feature
 # * fix: A bug fix
@@ -16,6 +24,11 @@
 # * ci: Changes to CI configuration files and scripts
 # * chore: Other changes that don't modify src or test files
 # * revert: Reverts a previous commit
+
+# Package scopes:
+# * guardian - @puaros/guardian package
+# * ipuaro   - @puaros/ipuaro package
+# * (none)   - root-level changes
 #
 # Subject line rules:
 # - Use imperative mood ("add feature" not "added feature")
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,63 +0,0 @@
-# Changelog
-
-All notable changes to this project will be documented in this file.
-
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-
-## [Unreleased]
-
-## [0.4.0] - 2025-11-24
-
-### Added
- Dependency direction enforcement - validate that dependencies flow in the correct direction according to Clean Architecture principles
- Architecture layer violation detection for domain, application, and infrastructure layers
-
-## [0.3.0] - 2025-11-24
-
-### Added
- Entity exposure detection - identify when domain entities are exposed outside their module boundaries
- Enhanced architecture violation reporting
-
-## [0.2.0] - 2025-11-24
-
-### Added
- Framework leak detection - detect when domain layer imports framework code
- Framework leak reporting in CLI
- Framework leak examples and documentation
-
-## [0.1.0] - 2025-11-24
-
-### Added
- Initial monorepo setup with pnpm workspaces
- `@puaros/guardian` package - code quality guardian for vibe coders and enterprise teams
- TypeScript with strict type checking and Vitest configuration
- ESLint strict TypeScript rules with 4-space indentation
- Prettier code formatting (4 spaces, double quotes, no semicolons)
- LINTING.md documentation for code style guidelines
- CLAUDE.md for AI assistant guidance
- EditorConfig for consistent IDE settings
- Node.js version specification (.nvmrc: 22.18.0)
- Vitest testing framework with 80% coverage thresholds
- Guardian dependencies: commander, simple-git, tree-sitter, uuid
-
-### Configuration
- TypeScript: nodenext modules, ES2023 target, strict null checks
- ESLint: Strict type checking, complexity limits, code quality rules
- Prettier: 100 char line length, double quotes, no semicolons, trailing commas
- Test coverage: 80% threshold for lines, functions, branches, statements
-
-### Guardian Package
- Hardcode detection (magic numbers, strings)
- Circular dependency detection
- Naming convention enforcement
- Architecture violation detection
- CLI tool with `guardian` command
- 159 tests, all passing
- Clean Architecture implementation
-
-## [0.0.1] - 2025-11-24
-
-### Added
- Initial project structure
- Monorepo workspace configuration
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -4,7 +4,53 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co

 ## Project Overview

-Puaros is a TypeScript monorepo using pnpm workspaces. Currently contains the `@puaros/guardian` package - a code quality guardian for detecting hardcoded values, circular dependencies, framework leaks, naming violations, and architecture violations. The project uses Node.js 22.18.0 (see `.nvmrc`).
+Puaros is a TypeScript monorepo using pnpm workspaces. Contains two packages:
+
+- **`@samiyev/guardian`** - Code quality guardian for detecting hardcoded values, circular dependencies, framework leaks, naming violations, and architecture violations.
+
+- **`@samiyev/ipuaro`** - Local AI agent for codebase operations with "infinite" context feeling. Uses lazy loading, Redis persistence, tree-sitter AST parsing, and Ollama LLM integration.
+
+The project uses Node.js 22.18.0 (see `.nvmrc`).
+
+## Path Reference
+
+**Root:** `/Users/fozilbeksamiyev/projects/ailabs/puaros`
+
+### Key Paths
+
+| Description | Path |
+|-------------|------|
+| **Root** | `.` |
+| **Guardian package** | `packages/guardian` |
+| **Guardian src** | `packages/guardian/src` |
+| **Guardian tests** | `packages/guardian/tests` |
+| **Guardian CLI** | `packages/guardian/src/cli` |
+| **Guardian domain** | `packages/guardian/src/domain` |
+| **Guardian infrastructure** | `packages/guardian/src/infrastructure` |
+| **ipuaro package** | `packages/ipuaro` |
+| **ipuaro docs** | `packages/ipuaro/docs` |
+
+### File Locations
+
+| File | Location |
+|------|----------|
+| Root package.json | `./package.json` |
+| Guardian package.json | `packages/guardian/package.json` |
+| Guardian tsconfig | `packages/guardian/tsconfig.json` |
+| Guardian TODO | `packages/guardian/TODO.md` |
+| Guardian CHANGELOG | `packages/guardian/CHANGELOG.md` |
+| ipuaro ROADMAP | `packages/ipuaro/ROADMAP.md` |
+| ESLint config | `./eslint.config.mjs` |
+| Prettier config | `./.prettierrc` |
+| Base tsconfig | `./tsconfig.base.json` |
+
+### Path Rules
+
+1. **Always use relative paths from project root** (not absolute)
+2. **Package paths start with** `packages/<name>/`
+3. **Source code is in** `packages/<name>/src/`
+4. **Tests are in** `packages/<name>/tests/`
+5. **Docs are in** `packages/<name>/docs/` or `./docs/`

 ## Essential Commands

@@ -100,28 +146,51 @@ From `eslint.config.mjs` and detailed in `LINTING.md`:

 Follow Conventional Commits format. See `.gitmessage` for full rules.

-Format: `<type>: <subject>` (imperative mood, no caps, max 50 chars)
+**Monorepo format:** `<type>(<package>): <subject>`

-**IMPORTANT: Do NOT add "Generated with Claude Code" footer or "Co-Authored-By: Claude" to commit messages.**
-Commits should only follow the Conventional Commits format without any additional attribution.
+Examples:
+- `feat(guardian): add circular dependency detector`
+- `fix(ipuaro): resolve memory leak in indexer`
+- `docs(guardian): update CLI usage examples`
+- `refactor(ipuaro): extract tool registry`
+
+**Root-level changes:** `<type>: <subject>` (no scope)
+- `chore: update eslint config`
+- `docs: update root README`
+
+**Types:** feat, fix, docs, style, refactor, test, chore
+
+**Rules:**
+- Imperative mood, no caps, max 50 chars
+- Do NOT add "Generated with Claude Code" footer
+- Do NOT add "Co-Authored-By: Claude"

 ## Monorepo Structure

 ```
 puaros/
 ├── packages/
-│   └── guardian/                # @puaros/guardian - Code quality analyzer
-│       ├── src/                 # Source files (Clean Architecture layers)
-│       │   ├── domain/          # Domain layer (entities, value objects)
-│       │   ├── application/     # Application layer (use cases, DTOs)
-│       │   ├── infrastructure/  # Infrastructure layer (parsers, analyzers)
-│       │   ├── cli/            # CLI implementation
-│       │   └── shared/          # Shared utilities
-│       ├── dist/                # Build output
+│   ├── guardian/                # @samiyev/guardian - Code quality analyzer
+│   │   ├── src/                 # Source files (Clean Architecture)
+│   │   │   ├── domain/          # Entities, value objects
+│   │   │   ├── application/     # Use cases, DTOs
+│   │   │   ├── infrastructure/  # Parsers, analyzers
+│   │   │   ├── cli/             # CLI implementation
+│   │   │   └── shared/          # Shared utilities
+│   │   ├── bin/                 # CLI entry point
+│   │   ├── tests/               # Test files
+│   │   └── examples/            # Usage examples
+│   └── ipuaro/                  # @samiyev/ipuaro - Local AI agent
+│       ├── src/                 # Source files (Clean Architecture)
+│       │   ├── domain/          # Entities, value objects, services
+│       │   ├── application/     # Use cases, DTOs, mappers
+│       │   ├── infrastructure/  # Storage, LLM, indexer, tools
+│       │   ├── tui/             # Terminal UI (Ink/React)
+│       │   ├── cli/             # CLI commands
+│       │   └── shared/          # Types, constants, utils
 │       ├── bin/                 # CLI entry point
-│       ├── tests/               # Test files
-│       ├── examples/            # Usage examples
-│       └── package.json         # Uses Vitest for testing
+│       ├── tests/               # Unit and E2E tests
+│       └── examples/            # Demo projects
 ├── pnpm-workspace.yaml          # Workspace configuration
 └── tsconfig.base.json           # Shared TypeScript config
 ```
@@ -142,6 +211,34 @@ Key features:
 - Architecture violation detection
 - CLI tool with `guardian` command

+### ipuaro Package Architecture
+
+The ipuaro package follows Clean Architecture principles:
+- **Domain Layer**: Entities (Session, Project), value objects (FileData, FileAST, ChatMessage), service interfaces
+- **Application Layer**: Use cases (StartSession, HandleMessage, IndexProject, ExecuteTool), DTOs, mappers
+- **Infrastructure Layer**: Redis storage, Ollama client, indexer, 18 tool implementations, security
+- **TUI Layer**: Ink/React components (StatusBar, Chat, Input, DiffView, ConfirmDialog)
+- **CLI Layer**: Commander.js entry point and commands
+
+Key features:
+- 18 LLM tools (read, edit, search, analysis, git, run)
+- Redis persistence with AOF
+- tree-sitter AST parsing (ts, tsx, js, jsx)
+- Ollama LLM integration (qwen2.5-coder:7b-instruct)
+- File watching via chokidar
+- Session and undo management
+- Security (blacklist/whitelist for commands)
+
+**Tools summary:**
+| Category | Tools |
+|----------|-------|
+| 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 |
+
 ### TypeScript Configuration

 Base configuration (`tsconfig.base.json`) uses:
@@ -163,253 +260,283 @@ Guardian package (`packages/guardian/tsconfig.json`):
 ## Adding New Packages

 1. Create `packages/new-package/` directory
-2. Add `package.json` with name `@puaros/new-package`
+2. Add `package.json` with name `@samiyev/new-package`
 3. Create `tsconfig.json` extending `../../tsconfig.base.json`
 4. Package auto-discovered via `pnpm-workspace.yaml` glob pattern

 ## Dependencies

-Guardian package uses:
- `commander` - CLI framework for command-line interface
+**Guardian package:**
+- `commander` - CLI framework
 - `simple-git` - Git operations
- `tree-sitter` - Abstract syntax tree parsing
- `tree-sitter-javascript` - JavaScript parser
- `tree-sitter-typescript` - TypeScript parser
+- `tree-sitter` - AST parsing
+- `tree-sitter-javascript/typescript` - JS/TS parsers
 - `uuid` - UUID generation

-Development tools:
- Vitest for testing with coverage thresholds
+**ipuaro package:**
+- `ink`, `ink-text-input`, `react` - Terminal UI
+- `ioredis` - Redis client
+- `tree-sitter` - AST parsing
+- `tree-sitter-javascript/typescript` - JS/TS parsers
+- `ollama` - LLM client
+- `simple-git` - Git operations
+- `chokidar` - File watching
+- `commander` - CLI framework
+- `zod` - Validation
+- `ignore` - Gitignore parsing
+
+**Development tools (shared):**
+- Vitest for testing (80% coverage threshold)
 - ESLint with TypeScript strict rules
- Prettier for formatting
- `@vitest/ui` - Vitest UI for interactive testing
+- Prettier (4-space indentation)
+- `@vitest/ui` - Interactive testing UI
 - `@vitest/coverage-v8` - Coverage reporting

-## Development Workflow
+## Monorepo Versioning Strategy

-### Complete Feature Development & Release Workflow
+### Git Tag Format

-This workflow ensures high quality and consistency from feature implementation to package publication.
-
-#### Phase 1: Feature Planning & Implementation
-
-```bash
-# 1. Create feature branch (if needed)
-git checkout -b feature/your-feature-name
-
-# 2. Implement feature following Clean Architecture
-# - Add to appropriate layer (domain/application/infrastructure/cli)
-# - Follow naming conventions
-# - Keep functions small and focused
-
-# 3. Update constants if adding CLI options
-# Edit: packages/guardian/src/cli/constants.ts
+**Prefixed tags for each package:**
+```
+guardian-v0.5.0
+ipuaro-v0.1.0
 ```

-#### Phase 2: Quality Checks (Run After Implementation)
+**Why prefixed tags:**
+- Independent versioning per package
+- Clear release history for each package
+- Works with npm publish and CI/CD
+- Easy to filter: `git tag -l "guardian-*"`
+
+**Legacy tags:** Tags before monorepo (v0.1.0, v0.2.0, etc.) are kept as-is for historical reference.
+
+### Semantic Versioning
+
+All packages follow SemVer: `MAJOR.MINOR.PATCH`
+
+- **MAJOR** (1.0.0) - Breaking API changes
+- **MINOR** (0.1.0) - New features, backwards compatible
+- **PATCH** (0.0.1) - Bug fixes, backwards compatible
+
+**Pre-1.0 policy:** Minor bumps (0.x.0) may include breaking changes.
+
+## Release Pipeline
+
+**Quick reference:** Say "run pipeline for [package]" to execute full release flow.
+
+The pipeline has 6 phases. Each phase must pass before proceeding.
+
+### Phase 1: Quality Gates

 ```bash
-# Navigate to package
-cd packages/guardian
+cd packages/<package>

-# 1. Format code (REQUIRED - 4 spaces indentation)
-pnpm format
-
-# 2. Build to check compilation
-pnpm build
-
-# 3. Run linter (must pass with 0 errors, 0 warnings)
-cd ../.. && pnpm eslint "packages/**/*.ts" --fix
-
-# 4. Run tests (all must pass)
-pnpm test:run
-
-# 5. Check coverage (must be ≥80%)
-pnpm test:coverage
+# All must pass:
+pnpm format                              # 4-space indentation
+pnpm build                               # TypeScript compiles
+cd ../.. && pnpm eslint "packages/**/*.ts" --fix  # 0 errors, 0 warnings
+cd packages/<package>
+pnpm test:run                            # All tests pass
+pnpm test:coverage                       # Coverage ≥80%
 ```

-**Quality Gates:**
- ✅ Format: No changes after `pnpm format`
- ✅ Build: TypeScript compiles without errors
- ✅ Lint: 0 errors, 0 warnings
- ✅ Tests: All tests pass (292/292)
- ✅ Coverage: ≥80% on all metrics
+### Phase 2: Documentation

-#### Phase 3: Documentation Updates
+Update these files in `packages/<package>/`:
+
+| File | Action |
+|------|--------|
+| `README.md` | Add feature docs, update CLI usage, update API |
+| `TODO.md` | Mark completed tasks, add new tech debt if any |
+| `CHANGELOG.md` | Add version entry with all changes |
+| `ROADMAP.md` | Update if milestone completed |
+
+**Tech debt rule:** If implementation leaves known issues, shortcuts, or future improvements needed — add them to TODO.md before committing.
+
+### Phase 3: Manual Testing

 ```bash
-# 1. Update README.md
-# - Add new feature to Features section
-# - Update CLI Usage examples if CLI changed
-# - Update API documentation if public API changed
-# - Update TypeScript interfaces
+cd packages/<package>

-# 2. Update TODO.md
-# - Mark completed tasks as done
-# - Add new technical debt if discovered
-# - Document coverage issues for new files
-# - Update "Recent Updates" section with changes
+# Test CLI/API manually
+node dist/cli/index.js <command> ./examples

-# 3. Update CHANGELOG.md (for releases)
-# - Add entry with version number
-# - List all changes (features, fixes, improvements)
-# - Follow Keep a Changelog format
+# Verify output, edge cases, error handling
 ```

-#### Phase 4: Verification & Testing
+### Phase 4: Commit

 ```bash
-# 1. Test CLI manually with examples
-cd packages/guardian
-node dist/cli/index.js check ./examples --limit 5
-
-# 2. Test new feature with different options
-node dist/cli/index.js check ./examples --only-critical
-node dist/cli/index.js check ./examples --min-severity high
-
-# 3. Verify output formatting and messages
-# - Check that all violations display correctly
-# - Verify severity labels and suggestions
-# - Test edge cases and error handling
-
-# 4. Run full quality check suite
-pnpm format && pnpm eslint "packages/**/*.ts" && pnpm build && pnpm test:run
-```
-
-#### Phase 5: Commit & Version
-
-```bash
-# 1. Stage changes
 git add .
+git commit -m "<type>(<package>): <description>"

-# 2. Commit with Conventional Commits format
-git commit -m "feat: add --limit option for output control"
-# or
-git commit -m "fix: resolve unused variable in detector"
-# or
-git commit -m "docs: update README with new features"
-
-# Types: feat, fix, docs, style, refactor, test, chore
-
-# 3. Update package version (if releasing)
-cd packages/guardian
-npm version patch  # Bug fixes (0.5.2 → 0.5.3)
-npm version minor  # New features (0.5.2 → 0.6.0)
-npm version major  # Breaking changes (0.5.2 → 1.0.0)
-
-# 4. Push changes
-git push origin main  # or your branch
-git push --tags      # Push version tags
+# Examples:
+# feat(guardian): add --limit option
+# fix(ipuaro): resolve memory leak in indexer
+# docs(guardian): update API examples
 ```

-#### Phase 6: Publication (Maintainers Only)
+**Commit types:** feat, fix, docs, style, refactor, test, chore
+
+### Phase 5: Version & Tag

 ```bash
-# 1. Final verification before publish
-cd packages/guardian
+cd packages/<package>
+
+# Bump version
+npm version patch  # 0.5.2 → 0.5.3 (bug fix)
+npm version minor  # 0.5.2 → 0.6.0 (new feature)
+npm version major  # 0.5.2 → 1.0.0 (breaking change)
+
+# Create prefixed git tag
+git tag <package>-v<version>
+# Example: git tag guardian-v0.6.0
+
+# Push
+git push origin main
+git push origin <package>-v<version>
+```
+
+### Phase 6: Publish (Maintainers Only)
+
+```bash
+cd packages/<package>
+
+# Final verification
 pnpm build && pnpm test:run && pnpm test:coverage

-# 2. Verify package contents
+# Check package contents
 npm pack --dry-run

-# 3. Publish to npm
+# Publish
 npm publish --access public

-# 4. Verify publication
-npm info @samiyev/guardian
-
-# 5. Test installation
-npm install -g @samiyev/guardian@latest
-guardian --version
+# Verify
+npm info @samiyev/<package>
 ```

-### Quick Checklist for New Features
+## Pipeline Checklist

-**Before Committing:**
- [ ] Feature implemented in correct layer
- [ ] Code formatted with `pnpm format`
- [ ] Lint passes: `pnpm eslint "packages/**/*.ts"`
- [ ] Build succeeds: `pnpm build`
- [ ] All tests pass: `pnpm test:run`
- [ ] Coverage ≥80%: `pnpm test:coverage`
- [ ] CLI tested manually if CLI changed
- [ ] README.md updated with examples
- [ ] TODO.md updated with progress
- [ ] No `console.log` in production code
- [ ] TypeScript interfaces documented
+Copy and use for each release:

-**Before Publishing:**
- [ ] CHANGELOG.md updated
+```markdown
+## Release: <package> v<version>
+
+### Quality Gates
+- [ ] `pnpm format` - no changes
+- [ ] `pnpm build` - compiles
+- [ ] `pnpm eslint` - 0 errors, 0 warnings
+- [ ] `pnpm test:run` - all pass
+- [ ] `pnpm test:coverage` - ≥80%
+
+### Documentation
+- [ ] README.md updated
+- [ ] TODO.md - completed tasks marked, new debt added
+- [ ] CHANGELOG.md - version entry added
+- [ ] ROADMAP.md updated (if needed)
+
+### Testing
+- [ ] CLI/API tested manually
+- [ ] Edge cases verified
+
+### Release
+- [ ] Commit with conventional format
 - [ ] Version bumped in package.json
- [ ] All quality gates pass
- [ ] Examples work correctly
- [ ] Git tags pushed
+- [ ] Git tag created: <package>-v<version>
+- [ ] Pushed to origin
+- [ ] Published to npm (if public release)
+```

-### Common Workflows
+## 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

-**Adding a new CLI option:**
 ```bash
 # 1. Add to cli/constants.ts (CLI_OPTIONS, CLI_DESCRIPTIONS)
 # 2. Add option in cli/index.ts (.option() call)
 # 3. Parse and use option in action handler
-# 4. Test with: node dist/cli/index.js check ./examples --your-option
-# 5. Update README.md CLI Usage section
-# 6. Run quality checks
+# 4. Test: node dist/cli/index.js <command> --your-option
+# 5. Run pipeline
 ```

-**Adding a new detector:**
+### Adding a new detector (guardian)
+
 ```bash
 # 1. Create value object in domain/value-objects/
 # 2. Create detector in infrastructure/analyzers/
-# 3. Add detector interface to domain/services/
+# 3. Add interface to domain/services/
 # 4. Integrate in application/use-cases/AnalyzeProject.ts
 # 5. Add CLI output in cli/index.ts
 # 6. Write tests (aim for >90% coverage)
-# 7. Update README.md Features section
-# 8. Run full quality suite
+# 7. Run pipeline
 ```

-**Fixing technical debt:**
+### Adding a new tool (ipuaro)
+
+```bash
+# 1. Define tool schema in infrastructure/tools/schemas/
+# 2. Implement tool in infrastructure/tools/
+# 3. Register in infrastructure/tools/index.ts
+# 4. Add tests
+# 5. Run pipeline
+```
+
+### Fixing technical debt
+
 ```bash
 # 1. Find issue in TODO.md
 # 2. Implement fix
-# 3. Run quality checks
-# 4. Update TODO.md (mark as completed)
-# 5. Commit with type: "refactor:" or "fix:"
+# 3. Update TODO.md (mark as completed)
+# 4. Run pipeline with type: "refactor:" or "fix:"
 ```

-### Debugging Tips
+## Debugging Tips

 **Build errors:**
 ```bash
-# Check TypeScript errors in detail
 pnpm tsc --noEmit
-
-# Check specific file
-pnpm tsc --noEmit packages/guardian/src/path/to/file.ts
+pnpm tsc --noEmit packages/<package>/src/path/to/file.ts
 ```

 **Test failures:**
 ```bash
-# Run single test file
 pnpm vitest tests/path/to/test.test.ts
-
-# Run tests with UI
 pnpm test:ui
-
-# Run tests in watch mode for debugging
-pnpm test
 ```

 **Coverage issues:**
 ```bash
-# Generate detailed coverage report
 pnpm test:coverage
-
-# View HTML report
 open coverage/index.html
-
-# Check specific file coverage
-pnpm vitest --coverage --reporter=verbose
 ```

 ## Important Notes
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ A TypeScript monorepo for code quality and analysis tools.

 - **[@puaros/guardian](./packages/guardian)** - Research-backed code quality guardian for vibe coders and enterprise teams. Detects hardcoded values, secrets, circular dependencies, architecture violations, and anemic domain models. Every rule is based on academic research, industry standards (OWASP, SonarQube), and authoritative books (Martin Fowler, Uncle Bob, Eric Evans). Perfect for AI-assisted development and enforcing Clean Architecture at scale.

+- **[@puaros/ipuaro](./packages/ipuaro)** - Local AI agent for codebase operations with "infinite" context feeling. Uses lazy loading and smart context management to work with codebases of any size. Features 18 LLM tools for reading, editing, searching, and analyzing code. Built with Ink/React TUI, Redis persistence, tree-sitter AST parsing, and Ollama integration.
+
 ## Prerequisites

 - Node.js 22.18.0 (use `nvm use` to automatically switch to the correct version)
@@ -75,18 +77,27 @@ pnpm eslint "packages/**/*.ts"
 ```
 puaros/
 ├── packages/
-│   └── guardian/              # @puaros/guardian - Code quality analyzer
+│   ├── guardian/              # @puaros/guardian - Code quality analyzer
+│   │   ├── src/               # Source files (Clean Architecture)
+│   │   │   ├── domain/        # Domain layer
+│   │   │   ├── application/   # Application layer
+│   │   │   ├── infrastructure/# Infrastructure layer
+│   │   │   ├── cli/           # CLI implementation
+│   │   │   └── shared/        # Shared utilities
+│   │   ├── bin/               # CLI entry point
+│   │   ├── tests/             # Unit and integration tests
+│   │   └── examples/          # Usage examples
+│   └── ipuaro/                # @puaros/ipuaro - Local AI agent
 │       ├── src/               # Source files (Clean Architecture)
-│       │   ├── domain/        # Domain layer
-│       │   ├── application/   # Application layer
-│       │   ├── infrastructure/# Infrastructure layer
-│       │   ├── cli/          # CLI implementation
-│       │   └── shared/        # Shared utilities
-│       ├── dist/              # Build output (generated)
+│       │   ├── domain/        # Entities, value objects, services
+│       │   ├── application/   # Use cases, DTOs, mappers
+│       │   ├── infrastructure/# Storage, LLM, indexer, tools
+│       │   ├── tui/           # Terminal UI (Ink/React)
+│       │   ├── cli/           # CLI commands
+│       │   └── shared/        # Types, constants, utils
 │       ├── bin/               # CLI entry point
-│       ├── tests/             # Unit and integration tests
-│       ├── examples/          # Usage examples
-│       └── package.json
+│       ├── tests/             # Unit and E2E tests
+│       └── examples/          # Demo projects
 ├── pnpm-workspace.yaml        # Workspace configuration
 ├── tsconfig.base.json         # Shared TypeScript config
 ├── eslint.config.mjs          # ESLint configuration
@@ -204,6 +215,79 @@ guardian check ./src --format json > report.json
 guardian check ./src --fail-on hardcode --fail-on circular
 ```

+## ipuaro Package
+
+The `@puaros/ipuaro` package is a local AI agent for codebase operations:
+
+### Features
+
+- **Infinite Context Feeling**: Lazy loading and smart context management for any codebase size
+- **18 LLM Tools**: Read, edit, search, analyze code through natural language
+- **Terminal UI**: Full-featured TUI built with Ink/React
+- **Redis Persistence**: Sessions, undo stack, and project index stored in Redis
+- **AST Parsing**: tree-sitter for TypeScript/JavaScript analysis
+- **File Watching**: Real-time index updates via chokidar
+- **Security**: Blacklist/whitelist for command execution
+
+### Tech Stack
+
+| Component | Technology |
+|-----------|------------|
+| Runtime | Node.js + TypeScript |
+| TUI | Ink (React for terminal) |
+| Storage | Redis with AOF persistence |
+| AST | tree-sitter (ts, tsx, js, jsx) |
+| LLM | Ollama (qwen2.5-coder:7b-instruct) |
+| Git | simple-git |
+| File watching | chokidar |
+
+### Tools (18 total)
+
+| Category | Tools |
+|----------|-------|
+| **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 |
+
+### Architecture
+
+Built with Clean Architecture principles:
+- **Domain Layer**: Entities, value objects, service interfaces
+- **Application Layer**: Use cases, DTOs, mappers
+- **Infrastructure Layer**: Redis storage, Ollama client, indexer, tools
+- **TUI Layer**: Ink/React components and hooks
+- **CLI Layer**: Commander.js entry point
+
+### Usage
+
+```bash
+# Start TUI in current directory
+ipuaro
+
+# Start in specific directory
+ipuaro /path/to/project
+
+# Index only (no TUI)
+ipuaro index
+
+# With auto-apply mode
+ipuaro --auto-apply
+```
+
+### Commands
+
+| Command | Description |
+|---------|-------------|
+| `/help` | Show all commands |
+| `/clear` | Clear chat history |
+| `/undo` | Revert last file change |
+| `/sessions` | Manage sessions |
+| `/status` | System status |
+| `/reindex` | Force reindexation |
+
 ## Dependencies

 Guardian package uses:
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -74,6 +74,7 @@ export default tseslint.config(
            '@typescript-eslint/require-await': 'warn',
            '@typescript-eslint/no-unnecessary-condition': 'off', // Sometimes useful for defensive coding
            '@typescript-eslint/no-non-null-assertion': 'warn',
+            '@typescript-eslint/no-unnecessary-type-parameters': 'warn', // Allow generic JSON parsers

            // ========================================
            // Code Quality & Best Practices
--- a/packages/guardian/CHANGELOG.md
+++ b/packages/guardian/CHANGELOG.md
@@ -5,6 +5,52 @@ 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
+
+- 🔄 **Refactored naming convention detector** - Migrated from regex-based to AST-based analysis:
+  - Replaced regex pattern matching with tree-sitter Abstract Syntax Tree traversal
+  - Improved accuracy with AST node context awareness (classes, interfaces, functions, variables)
+  - Reduced false positives with better naming pattern detection
+  - Added centralized AST node type constants (`ast-node-types.ts`) for maintainability
+  - New modular architecture with specialized analyzers:
+    - `AstClassNameAnalyzer` - Class naming validation
+    - `AstInterfaceNameAnalyzer` - Interface naming validation
+    - `AstFunctionNameAnalyzer` - Function naming validation
+    - `AstVariableNameAnalyzer` - Variable naming validation
+    - `AstNamingTraverser` - AST traversal for naming analysis
+  - Enhanced context-aware suggestions for hardcoded values:
+    - Added context keywords (EMAIL_CONTEXT_KEYWORDS, API_KEY_CONTEXT_KEYWORDS, URL_CONTEXT_KEYWORDS, etc.)
+    - Improved constant name generation based on context (ADMIN_EMAIL, API_SECRET_KEY, DATABASE_URL, etc.)
+    - Better file path suggestions (CONFIG_ENVIRONMENT, CONFIG_CONTACTS, CONFIG_PATHS, etc.)
+
+### Quality
+
+- ✅ **All tests pass** - Updated tests for AST-based naming detection
+- ✅ **Code organization** - Centralized AST constants reduce code duplication
+- ✅ **Maintainability** - Modular analyzers improve code separation and testability
+
 ## [0.9.1] - 2025-11-26

 ### Changed
--- a/packages/guardian/README.md
+++ b/packages/guardian/README.md
@@ -325,17 +325,6 @@ await reportMetrics({
 | **AI Enablement** | Safely adopt AI coding tools at scale |
 | **Technical Debt Visibility** | Metrics and trends for data-driven decisions |

-### Enterprise Success Stories
-
-**Fortune 500 Financial Services** 🏦
-> "We have 200+ developers and were struggling with architectural consistency. Guardian reduced our code review cycle time by 35% and caught 12 hardcoded API keys before they hit production. ROI in first month." - VP Engineering
-
-**Scale-up SaaS (Series B)** 📈
-> "Guardian allowed us to confidently adopt GitHub Copilot across our team. AI writes code 3x faster, Guardian ensures quality. We ship more features without increasing tech debt." - CTO
-
-**Consulting Firm** 💼
-> "We use Guardian on every client project. It enforces our standards automatically, and clients love the quality metrics reports. Saved us from a major security incident when it caught hardcoded AWS credentials." - Lead Architect
-
 ## Installation

 ```bash
@@ -970,36 +959,6 @@ Guardian follows Clean Architecture principles:
 - Node.js >= 18.0.0
 - TypeScript >= 5.0.0 (for TypeScript projects)

-## Real-World Vibe Coding Stats
-
-Based on testing Guardian with AI-generated codebases:
-
-| Metric | Typical AI Code | After Guardian |
-|--------|----------------|----------------|
-| Hardcoded values | 15-30 per 1000 LOC | 0-2 per 1000 LOC |
-| Circular deps | 2-5 per project | 0 per project |
-| Architecture violations | 10-20% of files | <1% of files |
-| Time to fix issues | Manual review: 2-4 hours | Guardian + AI: 5-10 minutes |
-
-**Common Issues Guardian Finds in AI Code:**
- 🔐 Hardcoded secrets and API keys (CRITICAL)
- ⏱️ Magic timeouts and retry counts
- 🌐 Hardcoded URLs and endpoints
- 🔄 Accidental circular imports
- 📁 Files in wrong architectural layers
- 🏷️ Inconsistent naming patterns
-
-## Success Stories
-
-**Prototype to Production** ⚡
-> "Built a SaaS MVP with Claude in 3 days. Guardian caught 47 hardcoded values before first deploy. Saved us from production disasters." - Indie Hacker
-
-**Learning Clean Architecture** 📚
-> "Guardian taught me Clean Architecture better than any tutorial. Every violation is a mini lesson with suggestions." - Junior Dev
-
-**AI-First Startup** 🚀
-> "We ship 5+ features daily using Claude + Guardian. No human code reviews needed for AI-generated code anymore." - Tech Lead
-
 ## FAQ for Vibe Coders

 **Q: Will Guardian slow down my AI workflow?**
--- a/packages/guardian/docs/COMPARISON.md
+++ b/packages/guardian/docs/COMPARISON.md
--- a/packages/guardian/docs/COMPETITIVE_ANALYSIS_SUMMARY.md
+++ b/packages/guardian/docs/COMPETITIVE_ANALYSIS_SUMMARY.md
--- a/packages/guardian/docs/RESEARCH_PROJECT_STRUCTURE_DETECTION.md
+++ b/packages/guardian/docs/RESEARCH_PROJECT_STRUCTURE_DETECTION.md
@@ -0,0 +1,979 @@
+# Research: Project Structure Detection for Architecture Analysis
+
+This document provides comprehensive research on approaches to detecting and validating project architecture structure. It covers existing tools, academic research, algorithms, and industry best practices that inform Guardian's architecture detection strategy.
+
+---
+
+## Table of Contents
+
+1. [Executive Summary](#1-executive-summary)
+2. [Existing Tools Analysis](#2-existing-tools-analysis)
+3. [Academic Approaches to Architecture Recovery](#3-academic-approaches-to-architecture-recovery)
+4. [Graph Analysis Algorithms](#4-graph-analysis-algorithms)
+5. [Configuration Patterns and Best Practices](#5-configuration-patterns-and-best-practices)
+6. [Industry Consensus](#6-industry-consensus)
+7. [Recommendations for Guardian](#7-recommendations-for-guardian)
+8. [Additional Resources](#8-additional-resources)
+
+---
+
+## 1. Executive Summary
+
+### Key Finding
+
+**Industry consensus:** Automatic architecture detection is unreliable. All major tools (ArchUnit, eslint-plugin-boundaries, Nx, dependency-cruiser, SonarQube) require **explicit configuration** from users rather than attempting automatic detection.
+
+### Why Automatic Detection Fails
+
+1. **Too Many Variations**: Project structures vary wildly across teams, frameworks, and domains
+2. **False Positives**: Algorithms may "detect" non-existent architectural patterns
+3. **Performance**: Graph analysis is slow for large codebases (>2000 files)
+4. **Ambiguity**: Same folder names can mean different things in different contexts
+5. **Legacy Code**: Poorly structured code produces meaningless analysis results
+
+### Recommended Approach
+
+| Priority | Approach | Description |
+|----------|----------|-------------|
+| P0 | Pattern-based detection | Glob/regex patterns for layer identification |
+| P0 | Configuration file | `.guardianrc.json` for explicit rules |
+| P1 | Presets | Pre-configured patterns for common architectures |
+| P1 | Generic mode | Fallback with minimal checks |
+| P2 | Interactive setup | CLI wizard for configuration generation |
+| P2 | Graph visualization | Visual dependency analysis (informational only) |
+| ❌ | Auto-detection | NOT recommended as primary strategy |
+
+---
+
+## 2. Existing Tools Analysis
+
+### 2.1 ArchUnit (Java)
+
+**Approach:** Fully declarative - user defines all layers explicitly.
+
+**Official Website:** https://www.archunit.org/
+
+**User Guide:** https://www.archunit.org/userguide/html/000_Index.html
+
+**GitHub Repository:** https://github.com/TNG/ArchUnit
+
+**Key Characteristics:**
+- Does NOT detect architecture automatically
+- User explicitly defines layers via package patterns
+- Fluent API for rule definition
+- Supports Layered, Onion, and Hexagonal architectures out-of-box
+- Integrates with JUnit/TestNG test frameworks
+
+**Example Configuration:**
+```java
+layeredArchitecture()
+    .layer("Controller").definedBy("..controller..")
+    .layer("Service").definedBy("..service..")
+    .layer("Persistence").definedBy("..persistence..")
+    .whereLayer("Controller").mayNotBeAccessedByAnyLayer()
+    .whereLayer("Service").mayOnlyBeAccessedByLayers("Controller")
+    .whereLayer("Persistence").mayOnlyBeAccessedByLayers("Service")
+```
+
+**References:**
+- Baeldung Tutorial: https://www.baeldung.com/java-archunit-intro
+- InfoQ Article: https://www.infoq.com/news/2022/10/archunit/
+- Examples Repository: https://github.com/TNG/ArchUnit-Examples
+
+---
+
+### 2.2 eslint-plugin-boundaries (TypeScript/JavaScript)
+
+**Approach:** Pattern-based element definition with dependency rules.
+
+**NPM Package:** https://www.npmjs.com/package/eslint-plugin-boundaries
+
+**GitHub Repository:** https://github.com/javierbrea/eslint-plugin-boundaries
+
+**Key Characteristics:**
+- Does NOT detect architecture automatically
+- Uses micromatch/glob patterns for element identification
+- Supports capture groups for dynamic element naming
+- TypeScript import type awareness (`value` vs `type` imports)
+- Works with monorepos
+
+**Example Configuration:**
+```javascript
+settings: {
+    "boundaries/elements": [
+        {
+            type: "domain",
+            pattern: "src/domain/*",
+            mode: "folder",
+            capture: ["elementName"]
+        },
+        {
+            type: "application",
+            pattern: "src/application/*",
+            mode: "folder"
+        },
+        {
+            type: "infrastructure",
+            pattern: "src/infrastructure/*",
+            mode: "folder"
+        }
+    ]
+},
+rules: {
+    "boundaries/element-types": [2, {
+        default: "disallow",
+        rules: [
+            { from: "infrastructure", allow: ["application", "domain"] },
+            { from: "application", allow: ["domain"] },
+            { from: "domain", disallow: ["*"] }
+        ]
+    }]
+}
+```
+
+**References:**
+- TypeScript Example: https://github.com/javierbrea/epb-ts-example
+- Element Types Documentation: https://github.com/javierbrea/eslint-plugin-boundaries/blob/master/docs/rules/element-types.md
+- Medium Tutorial: https://medium.com/@taynan_duarte/ensuring-dependency-rules-in-a-nodejs-application-with-typescript-using-eslint-plugin-boundaries-68b70ce32437
+
+---
+
+### 2.3 SonarQube Architecture as Code
+
+**Approach:** YAML/JSON configuration with automatic code structure analysis.
+
+**Official Documentation:** https://docs.sonarsource.com/sonarqube-server/design-and-architecture/overview/
+
+**Configuration Guide:** https://docs.sonarsource.com/sonarqube-server/design-and-architecture/configuring-the-architecture-analysis/
+
+**Key Characteristics:**
+- Introduced in SonarQube 2025 Release 2
+- Automatic code structure analysis (basic)
+- YAML/JSON configuration for custom rules
+- Supports "Perspectives" (multiple views of architecture)
+- Hierarchical "Groups" for organization
+- Glob and regex pattern support
+- Works without configuration for basic checks (cycle detection)
+
+**Supported Languages:**
+- Java (SonarQube Server)
+- Java, JavaScript, TypeScript (SonarQube Cloud)
+- Python, C# (coming soon)
+- C++ (under consideration)
+
+**Example Configuration:**
+```yaml
+# architecture.yaml
+perspectives:
+  - name: "Clean Architecture"
+    groups:
+      - name: "Domain"
+        patterns:
+          - "src/domain/**"
+          - "src/core/**"
+      - name: "Application"
+        patterns:
+          - "src/application/**"
+          - "src/use-cases/**"
+      - name: "Infrastructure"
+        patterns:
+          - "src/infrastructure/**"
+          - "src/adapters/**"
+    constraints:
+      - from: "Domain"
+        deny: ["Application", "Infrastructure"]
+      - from: "Application"
+        deny: ["Infrastructure"]
+```
+
+**References:**
+- Blog Announcement: https://www.sonarsource.com/blog/introducing-architecture-as-code-in-sonarqube/
+- Security Boulevard Coverage: https://securityboulevard.com/2025/04/introducing-architecture-as-code-in-sonarqube-7/
+
+---
+
+### 2.4 Nx Enforce Module Boundaries
+
+**Approach:** Tag-based system with ESLint integration.
+
+**Official Documentation:** https://nx.dev/docs/features/enforce-module-boundaries
+
+**ESLint Rule Guide:** https://nx.dev/docs/technologies/eslint/eslint-plugin/guides/enforce-module-boundaries
+
+**Key Characteristics:**
+- Tag-based constraint system (scope, type)
+- Projects tagged in project.json or package.json
+- Supports regex patterns in tags
+- Two-dimensional constraints (scope + type)
+- External dependency blocking
+- Integration with Nx project graph
+
+**Example Configuration:**
+```json
+// project.json
+{
+    "name": "user-domain",
+    "tags": ["scope:user", "type:domain"]
+}
+
+// ESLint config
+{
+    "@nx/enforce-module-boundaries": ["error", {
+        "depConstraints": [
+            {
+                "sourceTag": "type:domain",
+                "onlyDependOnLibsWithTags": ["type:domain"]
+            },
+            {
+                "sourceTag": "type:application",
+                "onlyDependOnLibsWithTags": ["type:domain", "type:application"]
+            },
+            {
+                "sourceTag": "scope:user",
+                "onlyDependOnLibsWithTags": ["scope:user", "scope:shared"]
+            }
+        ]
+    }]
+}
+```
+
+**References:**
+- Project Dependency Rules: https://nx.dev/docs/concepts/decisions/project-dependency-rules
+- Blog Post on Module Boundaries: https://nx.dev/blog/mastering-the-project-boundaries-in-nx
+- Medium Tutorial: https://medium.com/rupesh-tiwari/enforcing-dependency-constraints-within-service-in-nx-monorepo-workspace-56e87e792c98
+
+---
+
+### 2.5 dependency-cruiser
+
+**Approach:** Rule-based validation with visualization capabilities.
+
+**NPM Package:** https://www.npmjs.com/package/dependency-cruiser
+
+**GitHub Repository:** https://github.com/sverweij/dependency-cruiser
+
+**Key Characteristics:**
+- Regex patterns for from/to rules
+- Multiple output formats (SVG, DOT, Mermaid, JSON, HTML)
+- CI/CD integration support
+- TypeScript pre-compilation dependency support
+- Does NOT detect architecture automatically
+
+**Example Configuration:**
+```javascript
+// .dependency-cruiser.js
+module.exports = {
+    forbidden: [
+        {
+            name: "no-domain-to-infrastructure",
+            severity: "error",
+            from: { path: "^src/domain" },
+            to: { path: "^src/infrastructure" }
+        },
+        {
+            name: "no-circular",
+            severity: "error",
+            from: {},
+            to: { circular: true }
+        }
+    ],
+    options: {
+        doNotFollow: { path: "node_modules" },
+        tsPreCompilationDeps: true
+    }
+}
+```
+
+**References:**
+- Options Reference: https://github.com/sverweij/dependency-cruiser/blob/main/doc/options-reference.md
+- Rules Reference: https://github.com/sverweij/dependency-cruiser/blob/main/doc/rules-reference.md
+- Clean Architecture Tutorial: https://betterprogramming.pub/validate-dependencies-according-to-clean-architecture-743077ea084c
+
+---
+
+### 2.6 ts-arch / ArchUnitTS (TypeScript)
+
+**Approach:** ArchUnit-like fluent API for TypeScript.
+
+**ts-arch GitHub:** https://github.com/ts-arch/ts-arch
+
+**ts-arch Documentation:** https://ts-arch.github.io/ts-arch/
+
+**ArchUnitTS GitHub:** https://github.com/LukasNiessen/ArchUnitTS
+
+**Key Characteristics:**
+- Fluent API similar to ArchUnit
+- PlantUML diagram validation support
+- Jest/Vitest integration
+- Nx monorepo support
+- Does NOT detect architecture automatically
+
+**Example Usage:**
+```typescript
+import { filesOfProject } from "tsarch"
+
+// Folder-based dependency check
+const rule = filesOfProject()
+    .inFolder("domain")
+    .shouldNot()
+    .dependOnFiles()
+    .inFolder("infrastructure")
+
+await expect(rule).toPassAsync()
+
+// PlantUML diagram validation
+const rule = await slicesOfProject()
+    .definedBy("src/(**/)")
+    .should()
+    .adhereToDiagramInFile("architecture.puml")
+```
+
+**References:**
+- NPM Package: https://www.npmjs.com/package/tsarch
+- ArchUnitTS Documentation: https://lukasniessen.github.io/ArchUnitTS/
+- DeepWiki Analysis: https://deepwiki.com/ts-arch/ts-arch
+
+---
+
+### 2.7 Madge
+
+**Approach:** Visualization and circular dependency detection.
+
+**NPM Package:** https://www.npmjs.com/package/madge
+
+**GitHub Repository:** https://github.com/pahen/madge
+
+**Key Characteristics:**
+- Dependency graph visualization
+- Circular dependency detection
+- Multiple layout algorithms (dot, neato, fdp, circo)
+- Simple CLI interface
+- Does NOT define or enforce layers
+
+**Usage:**
+```bash
+# Find circular dependencies
+npx madge --circular src/
+
+# Generate dependency graph
+npx madge src/ --image deps.svg
+
+# TypeScript support
+npx madge src/main.ts --ts-config tsconfig.json --image ./deps.png
+```
+
+**References:**
+- NestJS Integration: https://manishbit97.medium.com/identifying-circular-dependencies-in-nestjs-using-madge-de137cd7f74f
+- Angular Integration: https://www.angulartraining.com/daily-newsletter/visualizing-internal-dependencies-with-madge/
+- React/TypeScript Tutorial: https://dev.to/greenroach/detecting-circular-dependencies-in-a-reacttypescript-app-using-madge-229
+
+**Alternative: Skott**
+- Claims to be 7x faster than Madge
+- Reference: https://dev.to/antoinecoulon/introducing-skott-the-new-madge-1bfl
+
+---
+
+## 3. Academic Approaches to Architecture Recovery
+
+### 3.1 Software Architecture Recovery Overview
+
+**Wikipedia Definition:** https://en.wikipedia.org/wiki/Software_architecture_recovery
+
+Software architecture recovery is a set of methods for extracting architectural information from lower-level representations of a software system, such as source code. The abstraction process frequently involves clustering source code entities (files, classes, functions) into subsystems according to application-dependent or independent criteria.
+
+**Motivation:**
+- Legacy systems often lack architectural documentation
+- Existing documentation is frequently out of sync with implementation
+- Understanding architecture is essential for maintenance and evolution
+
+---
+
+### 3.2 Machine Learning Approaches
+
+**Research Paper:** "Automatic software architecture recovery: A machine learning approach"
+
+**Source:** ResearchGate - https://www.researchgate.net/publication/261309157_Automatic_software_architecture_recovery_A_machine_learning_approach
+
+**Key Points:**
+- Current architecture recovery techniques require heavy human intervention or fail to recover quality components
+- Machine learning techniques use multiple feature types:
+  - Structural features (dependencies, coupling)
+  - Runtime behavioral features
+  - Domain/textual features
+  - Contextual features (code authorship, line co-change)
+- Automatically recovering functional architecture facilitates developer understanding
+
+**Limitation:** Requires training data and may not generalize across project types.
+
+---
+
+### 3.3 Genetic Algorithms for Architecture Recovery
+
+**Research Paper:** "Parallelization of genetic algorithms for software architecture recovery"
+
+**Source:** Springer - https://link.springer.com/content/pdf/10.1007/s10515-024-00479-0.pdf
+
+**Key Points:**
+- Software Architecture Recovery (SAR) techniques analyze dependencies between modules
+- Automatically cluster modules to achieve high modularity
+- Many approaches employ Genetic Algorithms (GAs)
+- Major drawback: lack of scalability
+- Solution: parallel execution of GA subroutines
+
+**Finding:** Finding optimal software clustering is an NP-complete problem.
+
+---
+
+### 3.4 Clustering Algorithms Comparison
+
+**Research Paper:** "A comparative analysis of software architecture recovery techniques"
+
+**Source:** IEEE Xplore - https://ieeexplore.ieee.org/document/6693106/
+
+**Algorithms Compared:**
+| Algorithm | Description | Strengths | Weaknesses |
+|-----------|-------------|-----------|------------|
+| ACDC | Comprehension-Driven Clustering | Finds natural subsystems | Requires parameter tuning |
+| LIMBO | Information-Theoretic Clustering | Scalable | May miss domain patterns |
+| WCA | Weighted Combined Algorithm | Balances multiple factors | Complex configuration |
+| K-means | Baseline clustering | Simple, fast | Poor for code structure |
+
+**Key Finding:** Even the best techniques have surprisingly low accuracy when compared against verified ground truths.
+
+---
+
+### 3.5 ACDC Algorithm (Algorithm for Comprehension-Driven Clustering)
+
+**Original Paper:** "ACDC: An Algorithm for Comprehension-Driven Clustering"
+
+**Source:** ResearchGate - https://www.researchgate.net/publication/221200422_ACDC_An_Algorithm_for_Comprehension-Driven_Clustering
+
+**York University Wiki:** https://wiki.eecs.yorku.ca/project/cluster/protected:acdc
+
+**Algorithm Steps:**
+1. Build dependency graph
+2. Find "dominator" nodes (subsystem patterns)
+3. Group nodes with common dominators
+4. Apply orphan adoption for ungrouped nodes
+5. Iteratively improve clusters
+
+**Advantages:**
+- Considers human comprehension patterns
+- Finds natural subsystems
+- Works without prior knowledge
+
+**Disadvantages:**
+- Requires parameter tuning
+- Does not guarantee optimality
+- May not work well on poorly structured code
+
+---
+
+### 3.6 LLM-Based Architecture Recovery (Recent Research)
+
+**Research Paper:** "Automated Software Architecture Design Recovery from Source Code Using LLMs"
+
+**Source:** Springer - https://link.springer.com/chapter/10.1007/978-3-032-02138-0_5
+
+**Key Findings:**
+- LLMs show promise for automating software architecture recovery
+- Effective at identifying:
+  - ✅ Architectural styles
+  - ✅ Structural elements
+  - ✅ Basic design patterns
+- Struggle with:
+  - ❌ Complex abstractions
+  - ❌ Class relationships
+  - ❌ Fine-grained design patterns
+
+**Conclusion:** "LLMs can support SAR activities, particularly in identifying structural and stylistic elements, but they struggle with complex abstractions"
+
+**Additional Reference:** arXiv paper on design principles - https://arxiv.org/html/2508.11717
+
+---
+
+## 4. Graph Analysis Algorithms
+
+### 4.1 Louvain Algorithm for Community Detection
+
+**Wikipedia:** https://en.wikipedia.org/wiki/Louvain_method
+
+**Original Paper:** "Fast unfolding of communities in large networks" (2008)
+- Authors: Vincent D Blondel, Jean-Loup Guillaume, Renaud Lambiotte, Etienne Lefebvre
+- Journal: Journal of Statistical Mechanics: Theory and Experiment
+- Reference: https://perso.uclouvain.be/vincent.blondel/research/louvain.html
+
+**Algorithm Description:**
+1. Initialize each node as its own community
+2. For each node, try moving to neighboring communities
+3. Select move with maximum modularity gain
+4. Merge communities into "super-nodes"
+5. Repeat from step 2
+
+**Modularity Formula:**
+```
+Q = (1/2m) * Σ[Aij - (ki*kj)/(2m)] * δ(ci, cj)
+
+Where:
+- Aij = edge weight between i and j
+- ki, kj = node degrees
+- m = sum of all weights
+- δ = 1 if ci = cj (same cluster)
+```
+
+**Characteristics:**
+| Parameter | Value |
+|-----------|-------|
+| Time Complexity | O(n log n) |
+| Modularity Range | -1 to 1 |
+| Good Result | Q > 0.3 |
+| Resolution Limit | Yes (may hide small communities) |
+
+**Implementations:**
+- NetworkX: https://networkx.org/documentation/stable/reference/algorithms/generated/networkx.algorithms.community.louvain.louvain_communities.html
+- Neo4j: https://neo4j.com/docs/graph-data-science/current/algorithms/louvain/
+- Graphology: https://graphology.github.io/standard-library/communities-louvain.html
+- igraph: https://igraph.org/r/doc/cluster_louvain.html
+
+**Application to Code Analysis:**
+```
+Dependency Graph:
+User.ts → Email.ts, UserId.ts
+Order.ts → OrderId.ts, Money.ts
+UserController.ts → User.ts, CreateUser.ts
+
+Louvain detects communities:
+Community 1: [User.ts, Email.ts, UserId.ts]        // User aggregate
+Community 2: [Order.ts, OrderId.ts, Money.ts]      // Order aggregate
+Community 3: [UserController.ts, CreateUser.ts]   // User feature
+```
+
+---
+
+### 4.2 Modularity as Quality Metric
+
+**Wikipedia:** https://en.wikipedia.org/wiki/Modularity_(networks)
+
+**Definition:** Modularity measures the strength of division of a network into modules (groups, clusters, communities). Networks with high modularity have dense connections within modules but sparse connections between modules.
+
+**Interpretation:**
+| Modularity Value | Interpretation |
+|------------------|----------------|
+| Q < 0 | Non-modular (worse than random) |
+| 0 < Q < 0.3 | Weak community structure |
+| 0.3 < Q < 0.5 | Moderate community structure |
+| Q > 0.5 | Strong community structure |
+| Q → 1 | Perfect modularity |
+
+**Research Reference:** "Fast Algorithm for Modularity-Based Graph Clustering" - https://cdn.aaai.org/ojs/8455/8455-13-11983-1-2-20201228.pdf
+
+---
+
+### 4.3 Graph-Based Software Modularization
+
+**Research Paper:** "A graph-based clustering algorithm for software systems modularization"
+
+**Source:** ScienceDirect - https://www.sciencedirect.com/science/article/abs/pii/S0950584920302147
+
+**Key Points:**
+- Clustering algorithms partition source code into manageable modules
+- Resulting decomposition is called software system structure
+- Due to NP-hardness, evolutionary approaches are commonly used
+- Objectives:
+  - Minimize inter-cluster connections
+  - Maximize intra-cluster connections
+  - Maximize overall clustering quality
+
+---
+
+### 4.4 Topological Sorting for Layer Detection
+
+**Algorithm Description:**
+
+Layers can be inferred from dependency graph topology:
+- **Layer 0 (Domain)**: Nodes with no outgoing dependencies to other layers
+- **Layer 1 (Application)**: Nodes depending only on Layer 0
+- **Layer 2+ (Infrastructure)**: Nodes depending on lower layers
+
+**Pseudocode:**
+```
+function detectLayers(graph):
+    layers = Map()
+    visited = Set()
+
+    function dfs(node):
+        if layers.has(node): return layers.get(node)
+        if visited.has(node): return 0  // Cycle detected
+
+        visited.add(node)
+        deps = graph.getDependencies(node)
+
+        if deps.isEmpty():
+            layers.set(node, 0)  // Leaf node = Domain
+            return 0
+
+        maxDepth = max(deps.map(dfs))
+        layers.set(node, maxDepth + 1)
+        return maxDepth + 1
+
+    graph.nodes.forEach(dfs)
+    return layers
+```
+
+**Limitation:** Assumes acyclic graph; circular dependencies break this approach.
+
+---
+
+### 4.5 Graph Metrics for Code Quality Assessment
+
+**Useful Metrics:**
+| Metric | Description | Good Value |
+|--------|-------------|------------|
+| Modularity | Clustering quality | > 0.3 |
+| Density | Edge/node ratio | Low for good separation |
+| Clustering Coefficient | Local clustering | Domain-dependent |
+| Cyclic Rate | % of circular deps | < 0.1 (10%) |
+| Average Path Length | Mean dependency distance | Lower = more coupled |
+
+**Code Quality Interpretation:**
+```
+if cyclicRate > 0.5:
+    return "SPAGHETTI"  // Cannot determine architecture
+if modularity < 0.2:
+    return "MONOLITH"   // No clear separation
+if modularity > 0.5:
+    return "WELL_STRUCTURED"  // Can determine layers
+return "MODERATE"
+```
+
+---
+
+## 5. Configuration Patterns and Best Practices
+
+### 5.1 Pattern Hierarchy
+
+**Level 1: Minimal Configuration**
+```json
+{
+    "architecture": "clean-architecture"
+}
+```
+
+**Level 2: Custom Paths**
+```json
+{
+    "architecture": "clean-architecture",
+    "layers": {
+        "domain": ["src/core", "src/domain"],
+        "application": ["src/app", "src/use-cases"],
+        "infrastructure": ["src/infra", "src/adapters"]
+    }
+}
+```
+
+**Level 3: Full Control**
+```json
+{
+    "layers": [
+        {
+            "name": "domain",
+            "patterns": ["src/domain/**", "**/*.entity.ts"],
+            "allowDependOn": []
+        },
+        {
+            "name": "application",
+            "patterns": ["src/application/**", "**/*.use-case.ts"],
+            "allowDependOn": ["domain"]
+        },
+        {
+            "name": "infrastructure",
+            "patterns": ["src/infrastructure/**", "**/*.controller.ts"],
+            "allowDependOn": ["domain", "application"]
+        }
+    ]
+}
+```
+
+---
+
+### 5.2 Architecture Drift Detection in CI/CD
+
+**Best Practices from Industry:**
+
+**Source:** Firefly Academy - https://www.firefly.ai/academy/implementing-continuous-drift-detection-in-ci-cd-pipelines-with-github-actions-workflow
+
+**Source:** Brainboard Blog - https://blog.brainboard.co/drift-detection-best-practices/
+
+**Key Recommendations:**
+
+1. **Integrate into Pipeline**: Validate architecture on every code update
+2. **Continuous Monitoring**: Run automated scans daily minimum, hourly for active projects
+3. **Enforce IaC-Only Changes**: All changes through automated workflows
+4. **Automated Reconciliation**: Regular drift detection and correction
+5. **Proper Alerting**: Slack for minor drift, PagerDuty for critical
+6. **Least Privilege**: Limit who can bypass architecture checks
+7. **Emergency Process**: Document process for urgent manual changes
+8. **Environment Refresh**: Reset after each pipeline run
+
+**Example GitHub Actions Integration:**
+```yaml
+name: Architecture Check
+
+on: [push, pull_request]
+
+jobs:
+    architecture:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+
+            - name: Check Architecture
+              run: npx guardian check --strict
+
+            - name: Generate Report
+              if: failure()
+              run: npx guardian report --format html
+
+            - name: Upload Report
+              if: failure()
+              uses: actions/upload-artifact@v3
+              with:
+                  name: architecture-report
+                  path: architecture-report.html
+```
+
+---
+
+### 5.3 Presets for Common Architectures
+
+**Clean Architecture Preset:**
+```json
+{
+    "preset": "clean-architecture",
+    "layers": {
+        "domain": {
+            "patterns": ["**/domain/**", "**/entities/**", "**/core/**"],
+            "allowDependOn": []
+        },
+        "application": {
+            "patterns": ["**/application/**", "**/use-cases/**", "**/services/**"],
+            "allowDependOn": ["domain"]
+        },
+        "infrastructure": {
+            "patterns": ["**/infrastructure/**", "**/adapters/**", "**/api/**"],
+            "allowDependOn": ["domain", "application"]
+        }
+    }
+}
+```
+
+**Hexagonal Architecture Preset:**
+```json
+{
+    "preset": "hexagonal",
+    "layers": {
+        "core": {
+            "patterns": ["**/core/**", "**/domain/**"],
+            "allowDependOn": []
+        },
+        "ports": {
+            "patterns": ["**/ports/**"],
+            "allowDependOn": ["core"]
+        },
+        "adapters": {
+            "patterns": ["**/adapters/**", "**/infrastructure/**"],
+            "allowDependOn": ["core", "ports"]
+        }
+    }
+}
+```
+
+**NestJS Preset:**
+```json
+{
+    "preset": "nestjs",
+    "layers": {
+        "domain": {
+            "patterns": ["**/*.entity.ts", "**/entities/**"],
+            "allowDependOn": []
+        },
+        "application": {
+            "patterns": ["**/*.service.ts", "**/*.use-case.ts"],
+            "allowDependOn": ["domain"]
+        },
+        "infrastructure": {
+            "patterns": ["**/*.controller.ts", "**/*.module.ts", "**/*.resolver.ts"],
+            "allowDependOn": ["domain", "application"]
+        }
+    }
+}
+```
+
+---
+
+## 6. Industry Consensus
+
+### 6.1 Why Major Tools Don't Auto-Detect
+
+| Tool | Auto-Detection | Reasoning |
+|------|----------------|-----------|
+| ArchUnit | ❌ No | "User knows their architecture best" |
+| eslint-plugin-boundaries | ❌ No | "Too many structure variations" |
+| Nx | ❌ No | "Tag-based approach is more flexible" |
+| dependency-cruiser | ❌ No | "Regex patterns cover all cases" |
+| SonarQube | ⚠️ Partial | "Basic analysis + config for accuracy" |
+
+### 6.2 Common Themes Across Tools
+
+1. **Explicit Configuration**: All tools require user-defined rules
+2. **Pattern Matching**: Glob/regex patterns are universal
+3. **Layered Rules**: Allow/deny dependencies between layers
+4. **CI/CD Integration**: All support pipeline integration
+5. **Visualization**: Optional but valuable for understanding
+
+### 6.3 Graph Analysis Position
+
+Graph analysis is used for:
+- ✅ Circular dependency detection
+- ✅ Visualization
+- ✅ Metrics calculation
+- ✅ Suggestion generation
+
+Graph analysis is NOT used for:
+- ❌ Primary layer detection
+- ❌ Automatic architecture classification
+- ❌ Rule enforcement
+
+---
+
+## 7. Recommendations for Guardian
+
+### 7.1 Recommended Architecture
+
+```
+┌─────────────────────────────────────────────────────────────┐
+│                    Configuration Layer                       │
+├─────────────────────────────────────────────────────────────┤
+│  .guardianrc.json │ package.json │ CLI args │ Interactive   │
+└─────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────┐
+│                    Strategy Resolver                         │
+├─────────────────────────────────────────────────────────────┤
+│  1. Explicit Config (if .guardianrc.json exists)            │
+│  2. Preset Detection (if preset specified)                  │
+│  3. Smart Defaults (standard patterns)                      │
+│  4. Generic Mode (fallback - minimal checks)                │
+└─────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────┐
+│                    Analysis Engine                           │
+├─────────────────────────────────────────────────────────────┤
+│  Pattern Matcher │ Layer Detector │ Dependency Analyzer     │
+└─────────────────────────────────────────────────────────────┘
+```
+
+### 7.2 Implementation Priorities
+
+**Phase 1: Configuration File Support**
+- Add `.guardianrc.json` parser
+- Support custom layer patterns
+- Support custom DDD folder names
+- Validate configuration on load
+
+**Phase 2: Presets System**
+- Clean Architecture preset
+- Hexagonal Architecture preset
+- NestJS preset
+- Feature-based preset
+
+**Phase 3: Smart Defaults**
+- Try standard folder names first
+- Fall back to file naming patterns
+- Support common conventions
+
+**Phase 4: Interactive Setup**
+- `guardian init` command
+- Project structure scanning
+- Configuration file generation
+- Preset recommendations
+
+**Phase 5: Generic Mode**
+- Minimal checks without layer knowledge
+- Hardcode detection
+- Secret detection
+- Circular dependency detection
+- Basic naming conventions
+
+### 7.3 Graph Analysis - Optional Feature Only
+
+Graph analysis should be:
+- **Optional**: Not required for basic functionality
+- **Informational**: For visualization and metrics
+- **Suggestive**: Can propose configuration, not enforce it
+
+**CLI Commands:**
+```bash
+guardian analyze --graph --output deps.svg    # Visualization
+guardian metrics                               # Quality metrics
+guardian suggest                               # Configuration suggestions
+```
+
+---
+
+## 8. Additional Resources
+
+### Official Documentation
+
+- ArchUnit: https://www.archunit.org/userguide/html/000_Index.html
+- eslint-plugin-boundaries: https://github.com/javierbrea/eslint-plugin-boundaries
+- SonarQube Architecture: https://docs.sonarsource.com/sonarqube-server/design-and-architecture/overview/
+- Nx Module Boundaries: https://nx.dev/docs/features/enforce-module-boundaries
+- dependency-cruiser: https://github.com/sverweij/dependency-cruiser
+
+### Academic Papers
+
+- Software Architecture Recovery (Wikipedia): https://en.wikipedia.org/wiki/Software_architecture_recovery
+- ACDC Algorithm: https://www.researchgate.net/publication/221200422_ACDC_An_Algorithm_for_Comprehension-Driven_Clustering
+- Louvain Method: https://en.wikipedia.org/wiki/Louvain_method
+- Graph Modularity: https://en.wikipedia.org/wiki/Modularity_(networks)
+- LLM-based SAR: https://link.springer.com/chapter/10.1007/978-3-032-02138-0_5
+
+### Tutorials and Guides
+
+- Clean Architecture Validation: https://betterprogramming.pub/validate-dependencies-according-to-clean-architecture-743077ea084c
+- Drift Detection Best Practices: https://blog.brainboard.co/drift-detection-best-practices/
+- Louvain Algorithm Tutorial: https://medium.com/data-science-in-your-pocket/community-detection-in-a-graph-using-louvain-algorithm-with-example-7a77e5e4b079
+
+### Related Books
+
+- **Clean Architecture** by Robert C. Martin (2017) - ISBN: 978-0134494166
+- **Domain-Driven Design** by Eric Evans (2003) - ISBN: 978-0321125217
+- **Implementing Domain-Driven Design** by Vaughn Vernon (2013) - ISBN: 978-0321834577
+
+---
+
+## Conclusion
+
+The research conclusively shows that **automatic architecture detection is unreliable** and **not used by major industry tools**. The recommended approach for Guardian is:
+
+1. **Configuration-first**: Support explicit layer definitions via `.guardianrc.json`
+2. **Pattern-based**: Use glob/regex patterns for flexible matching
+3. **Presets**: Provide pre-configured patterns for common architectures
+4. **Smart defaults**: Try standard conventions when no config exists
+5. **Generic fallback**: Provide useful checks even without architecture knowledge
+6. **Graph analysis as optional**: Use for visualization and suggestions only
+
+This approach aligns with industry best practices from ArchUnit, eslint-plugin-boundaries, SonarQube, Nx, and dependency-cruiser.
+
+---
+
+**Document Version**: 1.0
+**Last Updated**: 2025-11-27
+**Author**: Guardian Research Team
+**Questions or contributions?**
+- 📧 Email: fozilbek.samiyev@gmail.com
+- 🐙 GitHub: https://github.com/samiyev/puaros/issues
+**Based on research as of**: November 2025
--- a/packages/guardian/docs/ROADMAP_NEW.md
+++ b/packages/guardian/docs/ROADMAP_NEW.md
--- a/packages/guardian/package.json
+++ b/packages/guardian/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@samiyev/guardian",
-    "version": "0.9.0",
+    "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": {
--- a/packages/guardian/src/application/use-cases/AnalyzeProject.ts
+++ b/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,
--- a/packages/guardian/src/application/use-cases/pipeline/ExecuteDetection.ts
+++ b/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,
@@ -240,6 +241,7 @@ export class ExecuteDetection {

        for (const file of sourceFiles) {
            const namingViolations = this.namingConventionDetector.detectViolations(
+                file.content,
                file.path.filename,
                file.layer,
                file.path.relative,
--- a/packages/guardian/src/domain/constants/Messages.ts
+++ b/packages/guardian/src/domain/constants/Messages.ts
@@ -80,3 +80,12 @@ export const ANEMIC_MODEL_MESSAGES = {
    ENCAPSULATE_BUSINESS_RULES: "3. Encapsulate business rules inside entity methods",
    USE_DOMAIN_EVENTS: "4. Use domain events to communicate state changes",
 }
+
+/**
+ * Example values used in violation messages
+ */
+export const VIOLATION_EXAMPLE_VALUES = {
+    UNKNOWN: "unknown",
+    USER_REPOSITORY: "UserRepository",
+    FIND_ONE: "findOne",
+}
--- a/packages/guardian/src/domain/constants/Suggestions.ts
+++ b/packages/guardian/src/domain/constants/Suggestions.ts
@@ -24,6 +24,106 @@ export const SUGGESTION_KEYWORDS = {
    CONSOLE_ERROR: "console.error",
 } as const

+/**
+ * Context keywords for email detection
+ */
+export const EMAIL_CONTEXT_KEYWORDS = {
+    ADMIN: "admin",
+    SUPPORT: "support",
+    NOREPLY: "noreply",
+    NO_REPLY: "no-reply",
+} as const
+
+/**
+ * Context keywords for API key detection
+ */
+export const API_KEY_CONTEXT_KEYWORDS = {
+    SECRET: "secret",
+    PUBLIC: "public",
+} as const
+
+/**
+ * Context keywords for URL detection
+ */
+export const URL_CONTEXT_KEYWORDS = {
+    API: "api",
+    DATABASE: "database",
+    DB: "db",
+    MONGO: "mongo",
+    POSTGRES: "postgres",
+    PG: "pg",
+} as const
+
+/**
+ * Context keywords for IP address detection
+ */
+export const IP_CONTEXT_KEYWORDS = {
+    SERVER: "server",
+    REDIS: "redis",
+} as const
+
+/**
+ * Context keywords for file path detection
+ */
+export const FILE_PATH_CONTEXT_KEYWORDS = {
+    LOG: "log",
+    DATA: "data",
+    TEMP: "temp",
+} as const
+
+/**
+ * Context keywords for date detection
+ */
+export const DATE_CONTEXT_KEYWORDS = {
+    DEADLINE: "deadline",
+    START: "start",
+    END: "end",
+    EXPIR: "expir",
+} as const
+
+/**
+ * Context keywords for UUID detection
+ */
+export const UUID_CONTEXT_KEYWORDS = {
+    ID: "id",
+    IDENTIFIER: "identifier",
+    REQUEST: "request",
+    SESSION: "session",
+} as const
+
+/**
+ * Context keywords for version detection
+ */
+export const VERSION_CONTEXT_KEYWORDS = {
+    APP: "app",
+} as const
+
+/**
+ * Context keywords for color detection
+ */
+export const COLOR_CONTEXT_KEYWORDS = {
+    PRIMARY: "primary",
+    SECONDARY: "secondary",
+    BACKGROUND: "background",
+} as const
+
+/**
+ * Context keywords for base64 detection
+ */
+export const BASE64_CONTEXT_KEYWORDS = {
+    TOKEN: "token",
+    KEY: "key",
+} as const
+
+/**
+ * Context keywords for config detection
+ */
+export const CONFIG_CONTEXT_KEYWORDS = {
+    ENDPOINT: "endpoint",
+    ROUTE: "route",
+    CONNECTION: "connection",
+} as const
+
 /**
 * Constant name templates
 */
@@ -41,6 +141,50 @@ export const CONSTANT_NAMES = {
    MAGIC_STRING: "MAGIC_STRING",
    MAGIC_NUMBER: "MAGIC_NUMBER",
    UNKNOWN_CONSTANT: "UNKNOWN_CONSTANT",
+    ADMIN_EMAIL: "ADMIN_EMAIL",
+    SUPPORT_EMAIL: "SUPPORT_EMAIL",
+    NOREPLY_EMAIL: "NOREPLY_EMAIL",
+    DEFAULT_EMAIL: "DEFAULT_EMAIL",
+    API_SECRET_KEY: "API_SECRET_KEY",
+    API_PUBLIC_KEY: "API_PUBLIC_KEY",
+    API_KEY: "API_KEY",
+    DATABASE_URL: "DATABASE_URL",
+    MONGODB_CONNECTION_STRING: "MONGODB_CONNECTION_STRING",
+    POSTGRES_URL: "POSTGRES_URL",
+    BASE_URL: "BASE_URL",
+    SERVER_IP: "SERVER_IP",
+    DATABASE_HOST: "DATABASE_HOST",
+    REDIS_HOST: "REDIS_HOST",
+    HOST_IP: "HOST_IP",
+    LOG_FILE_PATH: "LOG_FILE_PATH",
+    CONFIG_FILE_PATH: "CONFIG_FILE_PATH",
+    DATA_DIR_PATH: "DATA_DIR_PATH",
+    TEMP_DIR_PATH: "TEMP_DIR_PATH",
+    FILE_PATH: "FILE_PATH",
+    DEADLINE: "DEADLINE",
+    START_DATE: "START_DATE",
+    END_DATE: "END_DATE",
+    EXPIRATION_DATE: "EXPIRATION_DATE",
+    DEFAULT_DATE: "DEFAULT_DATE",
+    DEFAULT_ID: "DEFAULT_ID",
+    REQUEST_ID: "REQUEST_ID",
+    SESSION_ID: "SESSION_ID",
+    UUID_CONSTANT: "UUID_CONSTANT",
+    API_VERSION: "API_VERSION",
+    APP_VERSION: "APP_VERSION",
+    VERSION: "VERSION",
+    PRIMARY_COLOR: "PRIMARY_COLOR",
+    SECONDARY_COLOR: "SECONDARY_COLOR",
+    BACKGROUND_COLOR: "BACKGROUND_COLOR",
+    COLOR_CONSTANT: "COLOR_CONSTANT",
+    MAC_ADDRESS: "MAC_ADDRESS",
+    ENCODED_TOKEN: "ENCODED_TOKEN",
+    ENCODED_KEY: "ENCODED_KEY",
+    BASE64_VALUE: "BASE64_VALUE",
+    API_ENDPOINT: "API_ENDPOINT",
+    ROUTE_PATH: "ROUTE_PATH",
+    CONNECTION_STRING: "CONNECTION_STRING",
+    CONFIG_VALUE: "CONFIG_VALUE",
 } as const

 /**
@@ -50,4 +194,8 @@ export const LOCATIONS = {
    SHARED_CONSTANTS: "shared/constants",
    DOMAIN_CONSTANTS: "domain/constants",
    INFRASTRUCTURE_CONFIG: "infrastructure/config",
+    CONFIG_ENVIRONMENT: "src/config/environment.ts",
+    CONFIG_CONTACTS: "src/config/contacts.ts",
+    CONFIG_PATHS: "src/config/paths.ts",
+    CONFIG_DATES: "src/config/dates.ts",
 } as const
--- a/packages/guardian/src/domain/services/INamingConventionDetector.ts
+++ b/packages/guardian/src/domain/services/INamingConventionDetector.ts
@@ -7,12 +7,14 @@ export interface INamingConventionDetector {
    /**
     * Detects naming convention violations for a given file
     *
+     * @param content - Source code content to analyze
     * @param fileName - Name of the file to check (e.g., "UserService.ts")
     * @param layer - Architectural layer of the file (domain, application, infrastructure, shared)
     * @param filePath - Relative file path for context
     * @returns Array of naming convention violations
     */
    detectViolations(
+        content: string,
        fileName: string,
        layer: string | undefined,
        filePath: string,
--- a/packages/guardian/src/domain/value-objects/HardcodedValue.ts
+++ b/packages/guardian/src/domain/value-objects/HardcodedValue.ts
@@ -1,6 +1,21 @@
 import { ValueObject } from "./ValueObject"
 import { DETECTION_PATTERNS, HARDCODE_TYPES } from "../../shared/constants/rules"
-import { CONSTANT_NAMES, LOCATIONS, SUGGESTION_KEYWORDS } from "../constants/Suggestions"
+import {
+    API_KEY_CONTEXT_KEYWORDS,
+    BASE64_CONTEXT_KEYWORDS,
+    COLOR_CONTEXT_KEYWORDS,
+    CONFIG_CONTEXT_KEYWORDS,
+    CONSTANT_NAMES,
+    DATE_CONTEXT_KEYWORDS,
+    EMAIL_CONTEXT_KEYWORDS,
+    FILE_PATH_CONTEXT_KEYWORDS,
+    IP_CONTEXT_KEYWORDS,
+    LOCATIONS,
+    SUGGESTION_KEYWORDS,
+    URL_CONTEXT_KEYWORDS,
+    UUID_CONTEXT_KEYWORDS,
+    VERSION_CONTEXT_KEYWORDS,
+} from "../constants/Suggestions"

 export type HardcodeType = (typeof HARDCODE_TYPES)[keyof typeof HARDCODE_TYPES]

@@ -156,156 +171,172 @@ 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()
        const valueType = this.props.valueType

        if (valueType === "email") {
-            if (context.includes("admin")) {
-                return "ADMIN_EMAIL"
+            if (context.includes(EMAIL_CONTEXT_KEYWORDS.ADMIN)) {
+                return CONSTANT_NAMES.ADMIN_EMAIL
            }
-            if (context.includes("support")) {
-                return "SUPPORT_EMAIL"
+            if (context.includes(EMAIL_CONTEXT_KEYWORDS.SUPPORT)) {
+                return CONSTANT_NAMES.SUPPORT_EMAIL
            }
-            if (context.includes("noreply") || context.includes("no-reply")) {
-                return "NOREPLY_EMAIL"
+            if (
+                context.includes(EMAIL_CONTEXT_KEYWORDS.NOREPLY) ||
+                context.includes(EMAIL_CONTEXT_KEYWORDS.NO_REPLY)
+            ) {
+                return CONSTANT_NAMES.NOREPLY_EMAIL
            }
-            return "DEFAULT_EMAIL"
+            return CONSTANT_NAMES.DEFAULT_EMAIL
        }

        if (valueType === "api_key") {
-            if (context.includes("secret")) {
-                return "API_SECRET_KEY"
+            if (context.includes(API_KEY_CONTEXT_KEYWORDS.SECRET)) {
+                return CONSTANT_NAMES.API_SECRET_KEY
            }
-            if (context.includes("public")) {
-                return "API_PUBLIC_KEY"
+            if (context.includes(API_KEY_CONTEXT_KEYWORDS.PUBLIC)) {
+                return CONSTANT_NAMES.API_PUBLIC_KEY
            }
-            return "API_KEY"
+            return CONSTANT_NAMES.API_KEY
        }

        if (valueType === "url") {
-            if (context.includes("api")) {
-                return "API_BASE_URL"
+            if (context.includes(URL_CONTEXT_KEYWORDS.API)) {
+                return CONSTANT_NAMES.API_BASE_URL
            }
-            if (context.includes("database") || context.includes("db")) {
-                return "DATABASE_URL"
+            if (
+                context.includes(URL_CONTEXT_KEYWORDS.DATABASE) ||
+                context.includes(URL_CONTEXT_KEYWORDS.DB)
+            ) {
+                return CONSTANT_NAMES.DATABASE_URL
            }
-            if (context.includes("mongo")) {
-                return "MONGODB_CONNECTION_STRING"
+            if (context.includes(URL_CONTEXT_KEYWORDS.MONGO)) {
+                return CONSTANT_NAMES.MONGODB_CONNECTION_STRING
            }
-            if (context.includes("postgres") || context.includes("pg")) {
-                return "POSTGRES_URL"
+            if (
+                context.includes(URL_CONTEXT_KEYWORDS.POSTGRES) ||
+                context.includes(URL_CONTEXT_KEYWORDS.PG)
+            ) {
+                return CONSTANT_NAMES.POSTGRES_URL
            }
-            return "BASE_URL"
+            return CONSTANT_NAMES.BASE_URL
        }

        if (valueType === "ip_address") {
-            if (context.includes("server")) {
-                return "SERVER_IP"
+            if (context.includes(IP_CONTEXT_KEYWORDS.SERVER)) {
+                return CONSTANT_NAMES.SERVER_IP
            }
-            if (context.includes("database") || context.includes("db")) {
-                return "DATABASE_HOST"
+            if (
+                context.includes(URL_CONTEXT_KEYWORDS.DATABASE) ||
+                context.includes(URL_CONTEXT_KEYWORDS.DB)
+            ) {
+                return CONSTANT_NAMES.DATABASE_HOST
            }
-            if (context.includes("redis")) {
-                return "REDIS_HOST"
+            if (context.includes(IP_CONTEXT_KEYWORDS.REDIS)) {
+                return CONSTANT_NAMES.REDIS_HOST
            }
-            return "HOST_IP"
+            return CONSTANT_NAMES.HOST_IP
        }

        if (valueType === "file_path") {
-            if (context.includes("log")) {
-                return "LOG_FILE_PATH"
+            if (context.includes(FILE_PATH_CONTEXT_KEYWORDS.LOG)) {
+                return CONSTANT_NAMES.LOG_FILE_PATH
            }
-            if (context.includes("config")) {
-                return "CONFIG_FILE_PATH"
+            if (context.includes(SUGGESTION_KEYWORDS.CONFIG)) {
+                return CONSTANT_NAMES.CONFIG_FILE_PATH
            }
-            if (context.includes("data")) {
-                return "DATA_DIR_PATH"
+            if (context.includes(FILE_PATH_CONTEXT_KEYWORDS.DATA)) {
+                return CONSTANT_NAMES.DATA_DIR_PATH
            }
-            if (context.includes("temp")) {
-                return "TEMP_DIR_PATH"
+            if (context.includes(FILE_PATH_CONTEXT_KEYWORDS.TEMP)) {
+                return CONSTANT_NAMES.TEMP_DIR_PATH
            }
-            return "FILE_PATH"
+            return CONSTANT_NAMES.FILE_PATH
        }

        if (valueType === "date") {
-            if (context.includes("deadline")) {
-                return "DEADLINE"
+            if (context.includes(DATE_CONTEXT_KEYWORDS.DEADLINE)) {
+                return CONSTANT_NAMES.DEADLINE
            }
-            if (context.includes("start")) {
-                return "START_DATE"
+            if (context.includes(DATE_CONTEXT_KEYWORDS.START)) {
+                return CONSTANT_NAMES.START_DATE
            }
-            if (context.includes("end")) {
-                return "END_DATE"
+            if (context.includes(DATE_CONTEXT_KEYWORDS.END)) {
+                return CONSTANT_NAMES.END_DATE
            }
-            if (context.includes("expir")) {
-                return "EXPIRATION_DATE"
+            if (context.includes(DATE_CONTEXT_KEYWORDS.EXPIR)) {
+                return CONSTANT_NAMES.EXPIRATION_DATE
            }
-            return "DEFAULT_DATE"
+            return CONSTANT_NAMES.DEFAULT_DATE
        }

        if (valueType === "uuid") {
-            if (context.includes("id") || context.includes("identifier")) {
-                return "DEFAULT_ID"
+            if (
+                context.includes(UUID_CONTEXT_KEYWORDS.ID) ||
+                context.includes(UUID_CONTEXT_KEYWORDS.IDENTIFIER)
+            ) {
+                return CONSTANT_NAMES.DEFAULT_ID
            }
-            if (context.includes("request")) {
-                return "REQUEST_ID"
+            if (context.includes(UUID_CONTEXT_KEYWORDS.REQUEST)) {
+                return CONSTANT_NAMES.REQUEST_ID
            }
-            if (context.includes("session")) {
-                return "SESSION_ID"
+            if (context.includes(UUID_CONTEXT_KEYWORDS.SESSION)) {
+                return CONSTANT_NAMES.SESSION_ID
            }
-            return "UUID_CONSTANT"
+            return CONSTANT_NAMES.UUID_CONSTANT
        }

        if (valueType === "version") {
-            if (context.includes("api")) {
-                return "API_VERSION"
+            if (context.includes(URL_CONTEXT_KEYWORDS.API)) {
+                return CONSTANT_NAMES.API_VERSION
            }
-            if (context.includes("app")) {
-                return "APP_VERSION"
+            if (context.includes(VERSION_CONTEXT_KEYWORDS.APP)) {
+                return CONSTANT_NAMES.APP_VERSION
            }
-            return "VERSION"
+            return CONSTANT_NAMES.VERSION
        }

        if (valueType === "color") {
-            if (context.includes("primary")) {
-                return "PRIMARY_COLOR"
+            if (context.includes(COLOR_CONTEXT_KEYWORDS.PRIMARY)) {
+                return CONSTANT_NAMES.PRIMARY_COLOR
            }
-            if (context.includes("secondary")) {
-                return "SECONDARY_COLOR"
+            if (context.includes(COLOR_CONTEXT_KEYWORDS.SECONDARY)) {
+                return CONSTANT_NAMES.SECONDARY_COLOR
            }
-            if (context.includes("background")) {
-                return "BACKGROUND_COLOR"
+            if (context.includes(COLOR_CONTEXT_KEYWORDS.BACKGROUND)) {
+                return CONSTANT_NAMES.BACKGROUND_COLOR
            }
-            return "COLOR_CONSTANT"
+            return CONSTANT_NAMES.COLOR_CONSTANT
        }

        if (valueType === "mac_address") {
-            return "MAC_ADDRESS"
+            return CONSTANT_NAMES.MAC_ADDRESS
        }

        if (valueType === "base64") {
-            if (context.includes("token")) {
-                return "ENCODED_TOKEN"
+            if (context.includes(BASE64_CONTEXT_KEYWORDS.TOKEN)) {
+                return CONSTANT_NAMES.ENCODED_TOKEN
            }
-            if (context.includes("key")) {
-                return "ENCODED_KEY"
+            if (context.includes(BASE64_CONTEXT_KEYWORDS.KEY)) {
+                return CONSTANT_NAMES.ENCODED_KEY
            }
-            return "BASE64_VALUE"
+            return CONSTANT_NAMES.BASE64_VALUE
        }

        if (valueType === "config") {
-            if (context.includes("endpoint")) {
-                return "API_ENDPOINT"
+            if (context.includes(CONFIG_CONTEXT_KEYWORDS.ENDPOINT)) {
+                return CONSTANT_NAMES.API_ENDPOINT
            }
-            if (context.includes("route")) {
-                return "ROUTE_PATH"
+            if (context.includes(CONFIG_CONTEXT_KEYWORDS.ROUTE)) {
+                return CONSTANT_NAMES.ROUTE_PATH
            }
-            if (context.includes("connection")) {
-                return "CONNECTION_STRING"
+            if (context.includes(CONFIG_CONTEXT_KEYWORDS.CONNECTION)) {
+                return CONSTANT_NAMES.CONNECTION_STRING
            }
-            return "CONFIG_VALUE"
+            return CONSTANT_NAMES.CONFIG_VALUE
        }

        if (value.includes(SUGGESTION_KEYWORDS.HTTP)) {
@@ -339,19 +370,19 @@ export class HardcodedValue extends ValueObject<HardcodedValueProps> {
        const valueType = this.props.valueType

        if (valueType === "api_key" || valueType === "url" || valueType === "ip_address") {
-            return "src/config/environment.ts"
+            return LOCATIONS.CONFIG_ENVIRONMENT
        }

        if (valueType === "email") {
-            return "src/config/contacts.ts"
+            return LOCATIONS.CONFIG_CONTACTS
        }

        if (valueType === "file_path") {
-            return "src/config/paths.ts"
+            return LOCATIONS.CONFIG_PATHS
        }

        if (valueType === "date") {
-            return "src/config/dates.ts"
+            return LOCATIONS.CONFIG_DATES
        }

        if (
--- a/packages/guardian/src/domain/value-objects/RepositoryViolation.ts
+++ b/packages/guardian/src/domain/value-objects/RepositoryViolation.ts
@@ -1,6 +1,10 @@
 import { ValueObject } from "./ValueObject"
 import { REPOSITORY_VIOLATION_TYPES } from "../../shared/constants/rules"
-import { REPOSITORY_FALLBACK_SUGGESTIONS, REPOSITORY_PATTERN_MESSAGES } from "../constants/Messages"
+import {
+    REPOSITORY_FALLBACK_SUGGESTIONS,
+    REPOSITORY_PATTERN_MESSAGES,
+    VIOLATION_EXAMPLE_VALUES,
+} from "../constants/Messages"

 interface RepositoryViolationProps {
    readonly violationType:
@@ -105,16 +109,16 @@ export class RepositoryViolation extends ValueObject<RepositoryViolationProps> {
    public getMessage(): string {
        switch (this.props.violationType) {
            case REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE:
-                return `Repository interface uses ORM-specific type '${this.props.ormType || "unknown"}'. Domain should not depend on infrastructure concerns.`
+                return `Repository interface uses ORM-specific type '${this.props.ormType || VIOLATION_EXAMPLE_VALUES.UNKNOWN}'. Domain should not depend on infrastructure concerns.`

            case REPOSITORY_VIOLATION_TYPES.CONCRETE_REPOSITORY_IN_USE_CASE:
-                return `Use case depends on concrete repository '${this.props.repositoryName || "unknown"}' instead of interface. Use dependency inversion.`
+                return `Use case depends on concrete repository '${this.props.repositoryName || VIOLATION_EXAMPLE_VALUES.UNKNOWN}' instead of interface. Use dependency inversion.`

            case REPOSITORY_VIOLATION_TYPES.NEW_REPOSITORY_IN_USE_CASE:
                return `Use case creates repository with 'new ${this.props.repositoryName || "Repository"}()'. Use dependency injection instead.`

            case REPOSITORY_VIOLATION_TYPES.NON_DOMAIN_METHOD_NAME:
-                return `Repository method '${this.props.methodName || "unknown"}' uses technical name. Use domain language instead.`
+                return `Repository method '${this.props.methodName || VIOLATION_EXAMPLE_VALUES.UNKNOWN}' uses technical name. Use domain language instead.`

            default:
                return `Repository pattern violation: ${this.props.details}`
@@ -159,8 +163,8 @@ export class RepositoryViolation extends ValueObject<RepositoryViolationProps> {
            REPOSITORY_PATTERN_MESSAGES.STEP_USE_DI,
            "",
            REPOSITORY_PATTERN_MESSAGES.EXAMPLE_PREFIX,
-            `❌ Bad: constructor(private repo: ${this.props.repositoryName || "UserRepository"})`,
-            `✅ Good: constructor(private repo: I${this.props.repositoryName?.replace(/^.*?([A-Z]\w+)$/, "$1") || "UserRepository"})`,
+            `❌ Bad: constructor(private repo: ${this.props.repositoryName || VIOLATION_EXAMPLE_VALUES.USER_REPOSITORY})`,
+            `✅ Good: constructor(private repo: I${this.props.repositoryName?.replace(/^.*?([A-Z]\w+)$/, "$1") || VIOLATION_EXAMPLE_VALUES.USER_REPOSITORY})`,
        ].join("\n")
    }

@@ -200,7 +204,7 @@ export class RepositoryViolation extends ValueObject<RepositoryViolationProps> {
            REPOSITORY_PATTERN_MESSAGES.STEP_AVOID_TECHNICAL,
            "",
            REPOSITORY_PATTERN_MESSAGES.EXAMPLE_PREFIX,
-            `❌ Bad: ${this.props.methodName || "findOne"}()`,
+            `❌ Bad: ${this.props.methodName || VIOLATION_EXAMPLE_VALUES.FIND_ONE}()`,
            `✅ Good: ${finalSuggestion}`,
        ].join("\n")
    }
--- a/packages/guardian/src/index.ts
+++ b/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"
--- a/packages/guardian/src/infrastructure/analyzers/HardcodeDetector.ts
+++ b/packages/guardian/src/infrastructure/analyzers/HardcodeDetector.ts
@@ -1,6 +1,7 @@
 import Parser from "tree-sitter"
 import { IHardcodeDetector } from "../../domain/services/IHardcodeDetector"
 import { HardcodedValue } from "../../domain/value-objects/HardcodedValue"
+import { FILE_EXTENSIONS } from "../../shared/constants"
 import { CodeParser } from "../parsers/CodeParser"
 import { AstBooleanAnalyzer } from "../strategies/AstBooleanAnalyzer"
 import { AstConfigObjectAnalyzer } from "../strategies/AstConfigObjectAnalyzer"
@@ -112,9 +113,9 @@ export class HardcodeDetector implements IHardcodeDetector {
     * Parses code based on file extension
     */
    private parseCode(code: string, filePath: string): Parser.Tree {
-        if (filePath.endsWith(".tsx")) {
+        if (filePath.endsWith(FILE_EXTENSIONS.TYPESCRIPT_JSX)) {
            return this.parser.parseTsx(code)
-        } else if (filePath.endsWith(".ts")) {
+        } else if (filePath.endsWith(FILE_EXTENSIONS.TYPESCRIPT)) {
            return this.parser.parseTypeScript(code)
        }
        return this.parser.parseJavaScript(code)
--- a/packages/guardian/src/infrastructure/analyzers/NamingConventionDetector.ts
+++ b/packages/guardian/src/infrastructure/analyzers/NamingConventionDetector.ts
@@ -1,37 +1,72 @@
+import Parser from "tree-sitter"
 import { INamingConventionDetector } from "../../domain/services/INamingConventionDetector"
 import { NamingViolation } from "../../domain/value-objects/NamingViolation"
-import {
-    LAYERS,
-    NAMING_PATTERNS,
-    NAMING_VIOLATION_TYPES,
-    USE_CASE_VERBS,
-} from "../../shared/constants/rules"
-import {
-    EXCLUDED_FILES,
-    FILE_SUFFIXES,
-    NAMING_ERROR_MESSAGES,
-    PATH_PATTERNS,
-    PATTERN_WORDS,
-} from "../constants/detectorPatterns"
-import { NAMING_SUGGESTION_DEFAULT } from "../constants/naming-patterns"
+import { FILE_EXTENSIONS } from "../../shared/constants"
+import { EXCLUDED_FILES } from "../constants/detectorPatterns"
+import { CodeParser } from "../parsers/CodeParser"
+import { AstClassNameAnalyzer } from "../strategies/naming/AstClassNameAnalyzer"
+import { AstFunctionNameAnalyzer } from "../strategies/naming/AstFunctionNameAnalyzer"
+import { AstInterfaceNameAnalyzer } from "../strategies/naming/AstInterfaceNameAnalyzer"
+import { AstNamingTraverser } from "../strategies/naming/AstNamingTraverser"
+import { AstVariableNameAnalyzer } from "../strategies/naming/AstVariableNameAnalyzer"

 /**
- * Detects naming convention violations based on Clean Architecture layers
+ * Detects naming convention violations using AST-based analysis
 *
- * This detector ensures that files follow naming conventions appropriate to their layer:
- * - Domain: Entities (nouns), Services (*Service), Value Objects, Repository interfaces (I*Repository)
- * - Application: Use cases (verbs), DTOs (*Dto/*Request/*Response), Mappers (*Mapper)
- * - Infrastructure: Controllers (*Controller), Repository implementations (*Repository), Services (*Service/*Adapter)
+ * This detector uses Abstract Syntax Tree (AST) analysis via tree-sitter to identify
+ * naming convention violations in classes, interfaces, functions, and variables
+ * according to Clean Architecture layer rules.
+ *
+ * The detector uses a modular architecture with specialized components:
+ * - AstClassNameAnalyzer: Analyzes class names
+ * - AstInterfaceNameAnalyzer: Analyzes interface names
+ * - AstFunctionNameAnalyzer: Analyzes function and method names
+ * - AstVariableNameAnalyzer: Analyzes variable and constant names
+ * - AstNamingTraverser: Traverses the AST and coordinates analyzers
 *
 * @example
 * ```typescript
 * const detector = new NamingConventionDetector()
- * const violations = detector.detectViolations('UserDto.ts', 'domain', 'src/domain/UserDto.ts')
- * // Returns violation: DTOs should not be in domain layer
+ * const code = `
+ *     class userService {  // Wrong: should be UserService
+ *         GetUser() {}     // Wrong: should be getUser
+ *     }
+ * `
+ * const violations = detector.detectViolations(code, 'UserService.ts', 'domain', 'src/domain/UserService.ts')
+ * // Returns array of NamingViolation objects
 * ```
 */
 export class NamingConventionDetector implements INamingConventionDetector {
+    private readonly parser: CodeParser
+    private readonly traverser: AstNamingTraverser
+
+    constructor() {
+        this.parser = new CodeParser()
+
+        const classAnalyzer = new AstClassNameAnalyzer()
+        const interfaceAnalyzer = new AstInterfaceNameAnalyzer()
+        const functionAnalyzer = new AstFunctionNameAnalyzer()
+        const variableAnalyzer = new AstVariableNameAnalyzer()
+
+        this.traverser = new AstNamingTraverser(
+            classAnalyzer,
+            interfaceAnalyzer,
+            functionAnalyzer,
+            variableAnalyzer,
+        )
+    }
+
+    /**
+     * Detects naming convention violations in the given code
+     *
+     * @param content - Source code to analyze
+     * @param fileName - Name of the file being analyzed
+     * @param layer - Architectural layer (domain, application, infrastructure, shared)
+     * @param filePath - File path for context (used in violation reports)
+     * @returns Array of detected naming violations
+     */
    public detectViolations(
+        content: string,
        fileName: string,
        layer: string | undefined,
        filePath: string,
@@ -44,235 +79,23 @@ export class NamingConventionDetector implements INamingConventionDetector {
            return []
        }

-        switch (layer) {
-            case LAYERS.DOMAIN:
-                return this.checkDomainLayer(fileName, filePath)
-            case LAYERS.APPLICATION:
-                return this.checkApplicationLayer(fileName, filePath)
-            case LAYERS.INFRASTRUCTURE:
-                return this.checkInfrastructureLayer(fileName, filePath)
-            case LAYERS.SHARED:
-                return []
-            default:
-                return []
+        if (!content || content.trim().length === 0) {
+            return []
        }
+
+        const tree = this.parseCode(content, filePath)
+        return this.traverser.traverse(tree, content, layer, filePath)
    }

-    private checkDomainLayer(fileName: string, filePath: string): NamingViolation[] {
-        const violations: NamingViolation[] = []
-
-        const forbiddenPatterns = NAMING_PATTERNS.DOMAIN.ENTITY.forbidden ?? []
-
-        for (const forbidden of forbiddenPatterns) {
-            if (fileName.includes(forbidden)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.FORBIDDEN_PATTERN,
-                        LAYERS.DOMAIN,
-                        filePath,
-                        NAMING_ERROR_MESSAGES.DOMAIN_FORBIDDEN,
-                        fileName,
-                        NAMING_SUGGESTION_DEFAULT,
-                    ),
-                )
-                return violations
-            }
+    /**
+     * Parses code based on file extension
+     */
+    private parseCode(code: string, filePath: string): Parser.Tree {
+        if (filePath.endsWith(FILE_EXTENSIONS.TYPESCRIPT_JSX)) {
+            return this.parser.parseTsx(code)
+        } else if (filePath.endsWith(FILE_EXTENSIONS.TYPESCRIPT)) {
+            return this.parser.parseTypeScript(code)
        }
-
-        if (fileName.endsWith(FILE_SUFFIXES.SERVICE)) {
-            if (!NAMING_PATTERNS.DOMAIN.SERVICE.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_CASE,
-                        LAYERS.DOMAIN,
-                        filePath,
-                        NAMING_PATTERNS.DOMAIN.SERVICE.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (
-            fileName.startsWith(PATTERN_WORDS.I_PREFIX) &&
-            fileName.includes(PATTERN_WORDS.REPOSITORY)
-        ) {
-            if (!NAMING_PATTERNS.DOMAIN.REPOSITORY_INTERFACE.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_PREFIX,
-                        LAYERS.DOMAIN,
-                        filePath,
-                        NAMING_PATTERNS.DOMAIN.REPOSITORY_INTERFACE.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (!NAMING_PATTERNS.DOMAIN.ENTITY.pattern.test(fileName)) {
-            violations.push(
-                NamingViolation.create(
-                    fileName,
-                    NAMING_VIOLATION_TYPES.WRONG_CASE,
-                    LAYERS.DOMAIN,
-                    filePath,
-                    NAMING_PATTERNS.DOMAIN.ENTITY.description,
-                    fileName,
-                    NAMING_ERROR_MESSAGES.USE_PASCAL_CASE,
-                ),
-            )
-        }
-
-        return violations
-    }
-
-    private checkApplicationLayer(fileName: string, filePath: string): NamingViolation[] {
-        const violations: NamingViolation[] = []
-
-        if (
-            fileName.endsWith(FILE_SUFFIXES.DTO) ||
-            fileName.endsWith(FILE_SUFFIXES.REQUEST) ||
-            fileName.endsWith(FILE_SUFFIXES.RESPONSE)
-        ) {
-            if (!NAMING_PATTERNS.APPLICATION.DTO.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
-                        LAYERS.APPLICATION,
-                        filePath,
-                        NAMING_PATTERNS.APPLICATION.DTO.description,
-                        fileName,
-                        NAMING_ERROR_MESSAGES.USE_DTO_SUFFIX,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (fileName.endsWith(FILE_SUFFIXES.MAPPER)) {
-            if (!NAMING_PATTERNS.APPLICATION.MAPPER.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
-                        LAYERS.APPLICATION,
-                        filePath,
-                        NAMING_PATTERNS.APPLICATION.MAPPER.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        const startsWithVerb = this.startsWithCommonVerb(fileName)
-        if (startsWithVerb) {
-            if (!NAMING_PATTERNS.APPLICATION.USE_CASE.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_VERB_NOUN,
-                        LAYERS.APPLICATION,
-                        filePath,
-                        NAMING_PATTERNS.APPLICATION.USE_CASE.description,
-                        fileName,
-                        NAMING_ERROR_MESSAGES.USE_VERB_NOUN,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (
-            filePath.includes(PATH_PATTERNS.USE_CASES) ||
-            filePath.includes(PATH_PATTERNS.USE_CASES_ALT)
-        ) {
-            const hasVerb = this.startsWithCommonVerb(fileName)
-            if (!hasVerb) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_VERB_NOUN,
-                        LAYERS.APPLICATION,
-                        filePath,
-                        NAMING_ERROR_MESSAGES.USE_CASE_START_VERB,
-                        fileName,
-                        `Start with a verb like: ${USE_CASE_VERBS.slice(0, 5).join(", ")}`,
-                    ),
-                )
-            }
-        }
-
-        return violations
-    }
-
-    private checkInfrastructureLayer(fileName: string, filePath: string): NamingViolation[] {
-        const violations: NamingViolation[] = []
-
-        if (fileName.endsWith(FILE_SUFFIXES.CONTROLLER)) {
-            if (!NAMING_PATTERNS.INFRASTRUCTURE.CONTROLLER.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
-                        LAYERS.INFRASTRUCTURE,
-                        filePath,
-                        NAMING_PATTERNS.INFRASTRUCTURE.CONTROLLER.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (
-            fileName.endsWith(FILE_SUFFIXES.REPOSITORY) &&
-            !fileName.startsWith(PATTERN_WORDS.I_PREFIX)
-        ) {
-            if (!NAMING_PATTERNS.INFRASTRUCTURE.REPOSITORY_IMPL.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
-                        LAYERS.INFRASTRUCTURE,
-                        filePath,
-                        NAMING_PATTERNS.INFRASTRUCTURE.REPOSITORY_IMPL.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        if (fileName.endsWith(FILE_SUFFIXES.SERVICE) || fileName.endsWith(FILE_SUFFIXES.ADAPTER)) {
-            if (!NAMING_PATTERNS.INFRASTRUCTURE.SERVICE.pattern.test(fileName)) {
-                violations.push(
-                    NamingViolation.create(
-                        fileName,
-                        NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
-                        LAYERS.INFRASTRUCTURE,
-                        filePath,
-                        NAMING_PATTERNS.INFRASTRUCTURE.SERVICE.description,
-                        fileName,
-                    ),
-                )
-            }
-            return violations
-        }
-
-        return violations
-    }
-
-    private startsWithCommonVerb(fileName: string): boolean {
-        const baseFileName = fileName.replace(/\.tsx?$/, "")
-
-        return USE_CASE_VERBS.some((verb) => baseFileName.startsWith(verb))
+        return this.parser.parseJavaScript(code)
    }
 }
--- a/packages/guardian/src/infrastructure/analyzers/SecretDetector.ts
+++ b/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 SECRET_TYPE_NAMES.AWS_ACCESS_KEY
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.SECRET)) {
-                return SECRET_TYPE_NAMES.AWS_SECRET_KEY
-            }
-            return SECRET_TYPE_NAMES.AWS_CREDENTIAL
+            return this.extractAwsType(lowerMessage)
        }
-
        if (ruleId.includes(SECRET_KEYWORDS.GITHUB)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.PERSONAL_ACCESS_TOKEN)) {
-                return SECRET_TYPE_NAMES.GITHUB_PERSONAL_ACCESS_TOKEN
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.OAUTH)) {
-                return SECRET_TYPE_NAMES.GITHUB_OAUTH_TOKEN
-            }
-            return SECRET_TYPE_NAMES.GITHUB_TOKEN
+            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)) {
-            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
+            return this.extractSshType(lowerMessage)
        }
-
        if (ruleId.includes(SECRET_KEYWORDS.SLACK)) {
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.BOT)) {
-                return SECRET_TYPE_NAMES.SLACK_BOT_TOKEN
-            }
-            if (message.toLowerCase().includes(SECRET_KEYWORDS.USER)) {
-                return SECRET_TYPE_NAMES.SLACK_USER_TOKEN
-            }
-            return SECRET_TYPE_NAMES.SLACK_TOKEN
+            return this.extractSlackType(lowerMessage)
        }
-
        if (ruleId.includes(SECRET_KEYWORDS.BASICAUTH)) {
            return SECRET_TYPE_NAMES.BASIC_AUTH_CREDENTIALS
        }
+        return null
+    }

-        if (message.toLowerCase().includes(SECRET_KEYWORDS.API_KEY)) {
-            return SECRET_TYPE_NAMES.API_KEY
+    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.TOKEN)) {
-            return SECRET_TYPE_NAMES.AUTHENTICATION_TOKEN
+        if (lowerMessage.includes(SECRET_KEYWORDS.SECRET)) {
+            return SECRET_TYPE_NAMES.AWS_SECRET_KEY
        }
+        return SECRET_TYPE_NAMES.AWS_CREDENTIAL
+    }

-        if (message.toLowerCase().includes(SECRET_KEYWORDS.PASSWORD)) {
-            return SECRET_TYPE_NAMES.PASSWORD
+    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.SECRET)) {
-            return SECRET_TYPE_NAMES.SECRET
+        if (lowerMessage.includes(SECRET_KEYWORDS.OAUTH)) {
+            return SECRET_TYPE_NAMES.GITHUB_OAUTH_TOKEN
        }
+        return SECRET_TYPE_NAMES.GITHUB_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
+            }
+        }
+        return SECRET_TYPE_NAMES.SSH_PRIVATE_KEY
+    }
+
+    private extractSlackType(lowerMessage: string): string {
+        if (lowerMessage.includes(SECRET_KEYWORDS.BOT)) {
+            return SECRET_TYPE_NAMES.SLACK_BOT_TOKEN
+        }
+        if (lowerMessage.includes(SECRET_KEYWORDS.USER)) {
+            return SECRET_TYPE_NAMES.SLACK_USER_TOKEN
+        }
+        return SECRET_TYPE_NAMES.SLACK_TOKEN
+    }
+
+    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
+            }
+        }
        return SECRET_TYPE_NAMES.SENSITIVE_DATA
    }
 }
--- a/packages/guardian/src/infrastructure/constants/detectorPatterns.ts
+++ b/packages/guardian/src/infrastructure/constants/detectorPatterns.ts
@@ -63,6 +63,28 @@ export const NAMING_ERROR_MESSAGES = {
    USE_DTO_SUFFIX: "Use *Dto, *Request, or *Response suffix (e.g., UserResponseDto.ts)",
    USE_VERB_NOUN: "Use verb + noun in PascalCase (e.g., CreateUser.ts, UpdateProfile.ts)",
    USE_CASE_START_VERB: "Use cases should start with a verb",
+    DOMAIN_SERVICE_PASCAL_CASE: "Domain services must be PascalCase ending with 'Service'",
+    DOMAIN_ENTITY_PASCAL_CASE: "Domain entities must be PascalCase nouns",
+    DTO_PASCAL_CASE: "DTOs must be PascalCase ending with 'Dto', 'Request', or 'Response'",
+    MAPPER_PASCAL_CASE: "Mappers must be PascalCase ending with 'Mapper'",
+    USE_CASE_VERB_NOUN: "Use cases must be PascalCase Verb+Noun (e.g., CreateUser)",
+    CONTROLLER_PASCAL_CASE: "Controllers must be PascalCase ending with 'Controller'",
+    REPOSITORY_IMPL_PASCAL_CASE:
+        "Repository implementations must be PascalCase ending with 'Repository'",
+    SERVICE_ADAPTER_PASCAL_CASE:
+        "Services/Adapters must be PascalCase ending with 'Service' or 'Adapter'",
+    FUNCTION_CAMEL_CASE: "Functions and methods must be camelCase",
+    USE_CAMEL_CASE_FUNCTION: "Use camelCase for function names (e.g., getUserById, createOrder)",
+    INTERFACE_PASCAL_CASE: "Interfaces must be PascalCase",
+    USE_PASCAL_CASE_INTERFACE: "Use PascalCase for interface names",
+    REPOSITORY_INTERFACE_I_PREFIX:
+        "Domain repository interfaces must start with 'I' (e.g., IUserRepository)",
+    REPOSITORY_INTERFACE_PATTERN: "Repository interfaces must be I + PascalCase + Repository",
+    CONSTANT_UPPER_SNAKE_CASE: "Exported constants must be UPPER_SNAKE_CASE",
+    USE_UPPER_SNAKE_CASE_CONSTANT:
+        "Use UPPER_SNAKE_CASE for constant names (e.g., MAX_RETRIES, API_URL)",
+    VARIABLE_CAMEL_CASE: "Variables must be camelCase",
+    USE_CAMEL_CASE_VARIABLE: "Use camelCase for variable names (e.g., userId, orderList)",
 } as const

 /**
--- a/packages/guardian/src/infrastructure/strategies/AstBooleanAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/AstBooleanAnalyzer.ts
@@ -1,6 +1,6 @@
 import Parser from "tree-sitter"
 import { HardcodedValue, HardcodeType } from "../../domain/value-objects/HardcodedValue"
-import { DETECTION_VALUES } from "../../shared/constants/rules"
+import { DETECTION_VALUES, HARDCODE_TYPES } from "../../shared/constants/rules"
 import { AstContextChecker } from "./AstContextChecker"

 /**
@@ -83,7 +83,7 @@ export class AstBooleanAnalyzer {

        return HardcodedValue.create(
            value,
-            "MAGIC_BOOLEAN" as HardcodeType,
+            HARDCODE_TYPES.MAGIC_BOOLEAN as HardcodeType,
            lineNumber,
            column,
            context,
--- a/packages/guardian/src/infrastructure/strategies/AstConfigObjectAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/AstConfigObjectAnalyzer.ts
@@ -1,6 +1,7 @@
 import Parser from "tree-sitter"
 import { HardcodedValue, HardcodeType } from "../../domain/value-objects/HardcodedValue"
 import { HARDCODE_TYPES } from "../../shared/constants/rules"
+import { AST_STRING_TYPES } from "../../shared/constants/ast-node-types"
 import { ALLOWED_NUMBERS } from "../constants/defaults"
 import { AstContextChecker } from "./AstContextChecker"

@@ -71,7 +72,9 @@ export class AstConfigObjectAnalyzer {
        }

        if (node.type === "string") {
-            const stringFragment = node.children.find((c) => c.type === "string_fragment")
+            const stringFragment = node.children.find(
+                (c) => c.type === AST_STRING_TYPES.STRING_FRAGMENT,
+            )
            return stringFragment !== undefined && stringFragment.text.length > 3
        }

--- a/packages/guardian/src/infrastructure/strategies/AstContextChecker.ts
+++ b/packages/guardian/src/infrastructure/strategies/AstContextChecker.ts
@@ -1,4 +1,10 @@
 import Parser from "tree-sitter"
+import {
+    AST_FIELD_NAMES,
+    AST_IDENTIFIER_TYPES,
+    AST_MODIFIER_TYPES,
+    AST_VARIABLE_TYPES,
+} from "../../shared/constants/ast-node-types"

 /**
 * AST context checker for analyzing node contexts
@@ -29,22 +35,26 @@ export class AstContextChecker {
     * Helper to check if export statement contains "as const"
     */
    private checkExportedConstant(exportNode: Parser.SyntaxNode): boolean {
-        const declaration = exportNode.childForFieldName("declaration")
+        const declaration = exportNode.childForFieldName(AST_FIELD_NAMES.DECLARATION)
        if (!declaration) {
            return false
        }

-        const declarator = this.findDescendant(declaration, "variable_declarator")
+        if (declaration.type !== "lexical_declaration") {
+            return false
+        }
+
+        const declarator = this.findDescendant(declaration, AST_VARIABLE_TYPES.VARIABLE_DECLARATOR)
        if (!declarator) {
            return false
        }

-        const value = declarator.childForFieldName("value")
+        const value = declarator.childForFieldName(AST_FIELD_NAMES.VALUE)
        if (value?.type !== "as_expression") {
            return false
        }

-        const asType = value.children.find((c) => c.type === "const")
+        const asType = value.children.find((c) => c.type === AST_MODIFIER_TYPES.CONST)
        return asType !== undefined
    }

@@ -83,12 +93,17 @@ export class AstContextChecker {

            if (current.type === "call_expression") {
                const functionNode =
-                    current.childForFieldName("function") ||
-                    current.children.find((c) => c.type === "identifier" || c.type === "import")
+                    current.childForFieldName(AST_FIELD_NAMES.FUNCTION) ||
+                    current.children.find(
+                        (c) =>
+                            c.type === AST_IDENTIFIER_TYPES.IDENTIFIER ||
+                            c.type === AST_IDENTIFIER_TYPES.IMPORT,
+                    )

                if (
                    functionNode &&
-                    (functionNode.text === "import" || functionNode.type === "import")
+                    (functionNode.text === "import" ||
+                        functionNode.type === AST_IDENTIFIER_TYPES.IMPORT)
                ) {
                    return true
                }
@@ -229,7 +244,13 @@ export class AstContextChecker {
    public getNodeContext(node: Parser.SyntaxNode): string {
        let current: Parser.SyntaxNode | null = node

-        while (current && current.type !== "lexical_declaration" && current.type !== "pair") {
+        while (
+            current &&
+            current.type !== "lexical_declaration" &&
+            current.type !== "pair" &&
+            current.type !== "call_expression" &&
+            current.type !== "return_statement"
+        ) {
            current = current.parent
        }

--- a/packages/guardian/src/infrastructure/strategies/AstNumberAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/AstNumberAnalyzer.ts
@@ -1,6 +1,7 @@
 import Parser from "tree-sitter"
 import { HardcodedValue, HardcodeType } from "../../domain/value-objects/HardcodedValue"
 import { HARDCODE_TYPES } from "../../shared/constants/rules"
+import { TIMER_FUNCTIONS } from "../../shared/constants/ast-node-types"
 import { ALLOWED_NUMBERS, DETECTION_KEYWORDS } from "../constants/defaults"
 import { AstContextChecker } from "./AstContextChecker"

@@ -43,7 +44,12 @@ export class AstNumberAnalyzer {
            return false
        }

-        if (this.contextChecker.isInCallExpression(parent, ["setTimeout", "setInterval"])) {
+        if (
+            this.contextChecker.isInCallExpression(parent, [
+                TIMER_FUNCTIONS.SET_TIMEOUT,
+                TIMER_FUNCTIONS.SET_INTERVAL,
+            ])
+        ) {
            return true
        }

--- a/packages/guardian/src/infrastructure/strategies/AstStringAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/AstStringAnalyzer.ts
@@ -1,6 +1,7 @@
 import Parser from "tree-sitter"
 import { HardcodedValue, HardcodeType } from "../../domain/value-objects/HardcodedValue"
 import { CONFIG_KEYWORDS, DETECTION_VALUES, HARDCODE_TYPES } from "../../shared/constants/rules"
+import { AST_STRING_TYPES } from "../../shared/constants/ast-node-types"
 import { AstContextChecker } from "./AstContextChecker"
 import { ValuePatternMatcher } from "./ValuePatternMatcher"

@@ -29,7 +30,9 @@ export class AstStringAnalyzer {
     * Analyzes a string node and returns a violation if it's a magic string
     */
    public analyze(node: Parser.SyntaxNode, lines: string[]): HardcodedValue | null {
-        const stringFragment = node.children.find((child) => child.type === "string_fragment")
+        const stringFragment = node.children.find(
+            (child) => child.type === AST_STRING_TYPES.STRING_FRAGMENT,
+        )
        if (!stringFragment) {
            return null
        }
@@ -108,6 +111,7 @@ export class AstStringAnalyzer {
            "key",
            ...CONFIG_KEYWORDS.MESSAGES,
            "label",
+            ...CONFIG_KEYWORDS.TECHNICAL,
        ]

        return configKeywords.some((keyword) => context.includes(keyword))
--- a/packages/guardian/src/infrastructure/strategies/ValuePatternMatcher.ts
+++ b/packages/guardian/src/infrastructure/strategies/ValuePatternMatcher.ts
@@ -1,3 +1,5 @@
+import { VALUE_PATTERN_TYPES } from "../../shared/constants/ast-node-types"
+
 /**
 * Pattern matcher for detecting specific value types
 *
@@ -131,40 +133,40 @@ export class ValuePatternMatcher {
        | "base64"
        | null {
        if (this.isEmail(value)) {
-            return "email"
+            return VALUE_PATTERN_TYPES.EMAIL
        }
        if (this.isJwt(value)) {
-            return "api_key"
+            return VALUE_PATTERN_TYPES.API_KEY
        }
        if (this.isApiKey(value)) {
-            return "api_key"
+            return VALUE_PATTERN_TYPES.API_KEY
        }
        if (this.isUrl(value)) {
-            return "url"
+            return VALUE_PATTERN_TYPES.URL
        }
        if (this.isIpAddress(value)) {
-            return "ip_address"
+            return VALUE_PATTERN_TYPES.IP_ADDRESS
        }
        if (this.isFilePath(value)) {
-            return "file_path"
+            return VALUE_PATTERN_TYPES.FILE_PATH
        }
        if (this.isDate(value)) {
-            return "date"
+            return VALUE_PATTERN_TYPES.DATE
        }
        if (this.isUuid(value)) {
-            return "uuid"
+            return VALUE_PATTERN_TYPES.UUID
        }
        if (this.isSemver(value)) {
-            return "version"
+            return VALUE_PATTERN_TYPES.VERSION
        }
        if (this.isHexColor(value)) {
            return "color"
        }
        if (this.isMacAddress(value)) {
-            return "mac_address"
+            return VALUE_PATTERN_TYPES.MAC_ADDRESS
        }
        if (this.isBase64(value)) {
-            return "base64"
+            return VALUE_PATTERN_TYPES.BASE64
        }
        return null
    }
--- a/packages/guardian/src/infrastructure/strategies/naming/AstClassNameAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/naming/AstClassNameAnalyzer.ts
@@ -0,0 +1,230 @@
+import Parser from "tree-sitter"
+import { NamingViolation } from "../../../domain/value-objects/NamingViolation"
+import { AST_CLASS_TYPES, AST_FIELD_NAMES } from "../../../shared/constants"
+import { LAYERS, NAMING_VIOLATION_TYPES, USE_CASE_VERBS } from "../../../shared/constants/rules"
+import {
+    FILE_SUFFIXES,
+    NAMING_ERROR_MESSAGES,
+    PATTERN_WORDS,
+} from "../../constants/detectorPatterns"
+
+/**
+ * AST-based analyzer for detecting class naming violations
+ *
+ * Analyzes class declaration nodes to ensure proper naming conventions:
+ * - Domain layer: PascalCase entities and services (*Service)
+ * - Application layer: PascalCase use cases (Verb+Noun), DTOs (*Dto/*Request/*Response)
+ * - Infrastructure layer: PascalCase controllers, repositories, services
+ */
+export class AstClassNameAnalyzer {
+    /**
+     * Analyzes a class declaration node
+     */
+    public analyze(
+        node: Parser.SyntaxNode,
+        layer: string,
+        filePath: string,
+        _lines: string[],
+    ): NamingViolation | null {
+        if (node.type !== AST_CLASS_TYPES.CLASS_DECLARATION) {
+            return null
+        }
+
+        const nameNode = node.childForFieldName(AST_FIELD_NAMES.NAME)
+        if (!nameNode) {
+            return null
+        }
+
+        const className = nameNode.text
+        const lineNumber = nameNode.startPosition.row + 1
+
+        switch (layer) {
+            case LAYERS.DOMAIN:
+                return this.checkDomainClass(className, filePath, lineNumber)
+            case LAYERS.APPLICATION:
+                return this.checkApplicationClass(className, filePath, lineNumber)
+            case LAYERS.INFRASTRUCTURE:
+                return this.checkInfrastructureClass(className, filePath, lineNumber)
+            default:
+                return null
+        }
+    }
+
+    /**
+     * Checks domain layer class naming
+     */
+    private checkDomainClass(
+        className: string,
+        filePath: string,
+        lineNumber: number,
+    ): NamingViolation | null {
+        if (className.endsWith(FILE_SUFFIXES.SERVICE.replace(".ts", ""))) {
+            if (!/^[A-Z][a-zA-Z0-9]*Service$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_CASE,
+                    LAYERS.DOMAIN,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.DOMAIN_SERVICE_PASCAL_CASE,
+                    className,
+                )
+            }
+            return null
+        }
+
+        if (!/^[A-Z][a-zA-Z0-9]*$/.test(className)) {
+            return NamingViolation.create(
+                className,
+                NAMING_VIOLATION_TYPES.WRONG_CASE,
+                LAYERS.DOMAIN,
+                `${filePath}:${String(lineNumber)}`,
+                NAMING_ERROR_MESSAGES.DOMAIN_ENTITY_PASCAL_CASE,
+                className,
+                NAMING_ERROR_MESSAGES.USE_PASCAL_CASE,
+            )
+        }
+
+        return null
+    }
+
+    /**
+     * Checks application layer class naming
+     */
+    private checkApplicationClass(
+        className: string,
+        filePath: string,
+        lineNumber: number,
+    ): NamingViolation | null {
+        if (
+            className.endsWith("Dto") ||
+            className.endsWith("Request") ||
+            className.endsWith("Response")
+        ) {
+            if (!/^[A-Z][a-zA-Z0-9]*(Dto|Request|Response)$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
+                    LAYERS.APPLICATION,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.DTO_PASCAL_CASE,
+                    className,
+                    NAMING_ERROR_MESSAGES.USE_DTO_SUFFIX,
+                )
+            }
+            return null
+        }
+
+        if (className.endsWith("Mapper")) {
+            if (!/^[A-Z][a-zA-Z0-9]*Mapper$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
+                    LAYERS.APPLICATION,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.MAPPER_PASCAL_CASE,
+                    className,
+                )
+            }
+            return null
+        }
+
+        const startsWithVerb = this.startsWithCommonVerb(className)
+        const startsWithLowercaseVerb = this.startsWithLowercaseVerb(className)
+        if (startsWithVerb) {
+            if (!/^[A-Z][a-z]+[A-Z][a-zA-Z0-9]*$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_VERB_NOUN,
+                    LAYERS.APPLICATION,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.USE_CASE_VERB_NOUN,
+                    className,
+                    NAMING_ERROR_MESSAGES.USE_VERB_NOUN,
+                )
+            }
+        } else if (startsWithLowercaseVerb) {
+            return NamingViolation.create(
+                className,
+                NAMING_VIOLATION_TYPES.WRONG_VERB_NOUN,
+                LAYERS.APPLICATION,
+                `${filePath}:${String(lineNumber)}`,
+                NAMING_ERROR_MESSAGES.USE_CASE_VERB_NOUN,
+                className,
+                NAMING_ERROR_MESSAGES.USE_VERB_NOUN,
+            )
+        }
+
+        return null
+    }
+
+    /**
+     * Checks infrastructure layer class naming
+     */
+    private checkInfrastructureClass(
+        className: string,
+        filePath: string,
+        lineNumber: number,
+    ): NamingViolation | null {
+        if (className.endsWith("Controller")) {
+            if (!/^[A-Z][a-zA-Z0-9]*Controller$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
+                    LAYERS.INFRASTRUCTURE,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.CONTROLLER_PASCAL_CASE,
+                    className,
+                )
+            }
+            return null
+        }
+
+        if (
+            className.endsWith(PATTERN_WORDS.REPOSITORY) &&
+            !className.startsWith(PATTERN_WORDS.I_PREFIX)
+        ) {
+            if (!/^[A-Z][a-zA-Z0-9]*Repository$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
+                    LAYERS.INFRASTRUCTURE,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.REPOSITORY_IMPL_PASCAL_CASE,
+                    className,
+                )
+            }
+            return null
+        }
+
+        if (className.endsWith("Service") || className.endsWith("Adapter")) {
+            if (!/^[A-Z][a-zA-Z0-9]*(Service|Adapter)$/.test(className)) {
+                return NamingViolation.create(
+                    className,
+                    NAMING_VIOLATION_TYPES.WRONG_SUFFIX,
+                    LAYERS.INFRASTRUCTURE,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.SERVICE_ADAPTER_PASCAL_CASE,
+                    className,
+                )
+            }
+            return null
+        }
+
+        return null
+    }
+
+    /**
+     * Checks if class name starts with a common use case verb
+     */
+    private startsWithCommonVerb(className: string): boolean {
+        return USE_CASE_VERBS.some((verb) => className.startsWith(verb))
+    }
+
+    /**
+     * Checks if class name starts with a lowercase verb (camelCase use case)
+     */
+    private startsWithLowercaseVerb(className: string): boolean {
+        const lowercaseVerbs = USE_CASE_VERBS.map((verb) => verb.toLowerCase())
+        return lowercaseVerbs.some((verb) => className.startsWith(verb))
+    }
+}
--- a/packages/guardian/src/infrastructure/strategies/naming/AstFunctionNameAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/naming/AstFunctionNameAnalyzer.ts
@@ -0,0 +1,65 @@
+import Parser from "tree-sitter"
+import { NamingViolation } from "../../../domain/value-objects/NamingViolation"
+import { AST_FIELD_NAMES, AST_FUNCTION_TYPES, CLASS_KEYWORDS } from "../../../shared/constants"
+import { NAMING_VIOLATION_TYPES } from "../../../shared/constants/rules"
+import { NAMING_ERROR_MESSAGES } from "../../constants/detectorPatterns"
+
+/**
+ * AST-based analyzer for detecting function and method naming violations
+ *
+ * Analyzes function declaration, method definition, and arrow function nodes
+ * to ensure proper naming conventions:
+ * - Functions and methods should be camelCase
+ * - Private methods with underscore prefix are allowed
+ */
+export class AstFunctionNameAnalyzer {
+    /**
+     * Analyzes a function or method declaration node
+     */
+    public analyze(
+        node: Parser.SyntaxNode,
+        layer: string,
+        filePath: string,
+        _lines: string[],
+    ): NamingViolation | null {
+        const functionNodeTypes = [
+            AST_FUNCTION_TYPES.FUNCTION_DECLARATION,
+            AST_FUNCTION_TYPES.METHOD_DEFINITION,
+            AST_FUNCTION_TYPES.FUNCTION_SIGNATURE,
+        ] as const
+
+        if (!(functionNodeTypes as readonly string[]).includes(node.type)) {
+            return null
+        }
+
+        const nameNode = node.childForFieldName(AST_FIELD_NAMES.NAME)
+        if (!nameNode) {
+            return null
+        }
+
+        const functionName = nameNode.text
+        const lineNumber = nameNode.startPosition.row + 1
+
+        if (functionName.startsWith("_")) {
+            return null
+        }
+
+        if (functionName === CLASS_KEYWORDS.CONSTRUCTOR) {
+            return null
+        }
+
+        if (!/^[a-z][a-zA-Z0-9]*$/.test(functionName)) {
+            return NamingViolation.create(
+                functionName,
+                NAMING_VIOLATION_TYPES.WRONG_CASE,
+                layer,
+                `${filePath}:${String(lineNumber)}`,
+                NAMING_ERROR_MESSAGES.FUNCTION_CAMEL_CASE,
+                functionName,
+                NAMING_ERROR_MESSAGES.USE_CAMEL_CASE_FUNCTION,
+            )
+        }
+
+        return null
+    }
+}
--- a/packages/guardian/src/infrastructure/strategies/naming/AstInterfaceNameAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/naming/AstInterfaceNameAnalyzer.ts
@@ -0,0 +1,90 @@
+import Parser from "tree-sitter"
+import { NamingViolation } from "../../../domain/value-objects/NamingViolation"
+import { AST_CLASS_TYPES, AST_FIELD_NAMES } from "../../../shared/constants"
+import { LAYERS, NAMING_VIOLATION_TYPES } from "../../../shared/constants/rules"
+import { NAMING_ERROR_MESSAGES, PATTERN_WORDS } from "../../constants/detectorPatterns"
+
+/**
+ * AST-based analyzer for detecting interface naming violations
+ *
+ * Analyzes interface declaration nodes to ensure proper naming conventions:
+ * - Domain layer: Repository interfaces must start with 'I' (e.g., IUserRepository)
+ * - All layers: Interfaces should be PascalCase
+ */
+export class AstInterfaceNameAnalyzer {
+    /**
+     * Analyzes an interface declaration node
+     */
+    public analyze(
+        node: Parser.SyntaxNode,
+        layer: string,
+        filePath: string,
+        _lines: string[],
+    ): NamingViolation | null {
+        if (node.type !== AST_CLASS_TYPES.INTERFACE_DECLARATION) {
+            return null
+        }
+
+        const nameNode = node.childForFieldName(AST_FIELD_NAMES.NAME)
+        if (!nameNode) {
+            return null
+        }
+
+        const interfaceName = nameNode.text
+        const lineNumber = nameNode.startPosition.row + 1
+
+        if (!/^[A-Z][a-zA-Z0-9]*$/.test(interfaceName)) {
+            return NamingViolation.create(
+                interfaceName,
+                NAMING_VIOLATION_TYPES.WRONG_CASE,
+                layer,
+                `${filePath}:${String(lineNumber)}`,
+                NAMING_ERROR_MESSAGES.INTERFACE_PASCAL_CASE,
+                interfaceName,
+                NAMING_ERROR_MESSAGES.USE_PASCAL_CASE_INTERFACE,
+            )
+        }
+
+        if (layer === LAYERS.DOMAIN) {
+            return this.checkDomainInterface(interfaceName, filePath, lineNumber)
+        }
+
+        return null
+    }
+
+    /**
+     * Checks domain layer interface naming
+     */
+    private checkDomainInterface(
+        interfaceName: string,
+        filePath: string,
+        lineNumber: number,
+    ): NamingViolation | null {
+        if (interfaceName.endsWith(PATTERN_WORDS.REPOSITORY)) {
+            if (!interfaceName.startsWith(PATTERN_WORDS.I_PREFIX)) {
+                return NamingViolation.create(
+                    interfaceName,
+                    NAMING_VIOLATION_TYPES.WRONG_PREFIX,
+                    LAYERS.DOMAIN,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.REPOSITORY_INTERFACE_I_PREFIX,
+                    interfaceName,
+                    `Rename to I${interfaceName}`,
+                )
+            }
+
+            if (!/^I[A-Z][a-zA-Z0-9]*Repository$/.test(interfaceName)) {
+                return NamingViolation.create(
+                    interfaceName,
+                    NAMING_VIOLATION_TYPES.WRONG_CASE,
+                    LAYERS.DOMAIN,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.REPOSITORY_INTERFACE_PATTERN,
+                    interfaceName,
+                )
+            }
+        }
+
+        return null
+    }
+}
--- a/packages/guardian/src/infrastructure/strategies/naming/AstNamingTraverser.ts
+++ b/packages/guardian/src/infrastructure/strategies/naming/AstNamingTraverser.ts
@@ -0,0 +1,106 @@
+import Parser from "tree-sitter"
+import { NamingViolation } from "../../../domain/value-objects/NamingViolation"
+import { AST_CLASS_TYPES, AST_FUNCTION_TYPES, AST_VARIABLE_TYPES } from "../../../shared/constants"
+import { AstClassNameAnalyzer } from "./AstClassNameAnalyzer"
+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
+ *
+ * Walks through the Abstract Syntax Tree and uses analyzers
+ * 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
+     */
+    public traverse(
+        tree: Parser.Tree,
+        sourceCode: string,
+        layer: string,
+        filePath: string,
+    ): NamingViolation[] {
+        const results: NamingViolation[] = []
+        const lines = sourceCode.split("\n")
+        const cursor = tree.walk()
+
+        this.visit(cursor, lines, layer, filePath, results)
+
+        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
+     */
+    private visit(
+        cursor: Parser.TreeCursor,
+        lines: string[],
+        layer: string,
+        filePath: string,
+        results: NamingViolation[],
+    ): void {
+        const node = cursor.currentNode
+        const handler = this.nodeHandlers.get(node.type)
+
+        if (handler) {
+            const violation = handler(node, layer, filePath, lines)
+            if (violation) {
+                results.push(violation)
+            }
+        }
+
+        if (cursor.gotoFirstChild()) {
+            do {
+                this.visit(cursor, lines, layer, filePath, results)
+            } while (cursor.gotoNextSibling())
+            cursor.gotoParent()
+        }
+    }
+}
--- a/packages/guardian/src/infrastructure/strategies/naming/AstVariableNameAnalyzer.ts
+++ b/packages/guardian/src/infrastructure/strategies/naming/AstVariableNameAnalyzer.ts
@@ -0,0 +1,159 @@
+import Parser from "tree-sitter"
+import { NamingViolation } from "../../../domain/value-objects/NamingViolation"
+import {
+    AST_FIELD_NAMES,
+    AST_FIELD_TYPES,
+    AST_MODIFIER_TYPES,
+    AST_PATTERN_TYPES,
+    AST_STATEMENT_TYPES,
+    AST_VARIABLE_TYPES,
+} from "../../../shared/constants"
+import { NAMING_VIOLATION_TYPES } from "../../../shared/constants/rules"
+import { NAMING_ERROR_MESSAGES } from "../../constants/detectorPatterns"
+
+/**
+ * AST-based analyzer for detecting variable naming violations
+ *
+ * Analyzes variable declarations to ensure proper naming conventions:
+ * - Regular variables: camelCase
+ * - Constants (exported UPPER_CASE): UPPER_SNAKE_CASE
+ * - Class properties: camelCase
+ * - Private properties with underscore prefix are allowed
+ */
+export class AstVariableNameAnalyzer {
+    /**
+     * Analyzes a variable declaration node
+     */
+    public analyze(
+        node: Parser.SyntaxNode,
+        layer: string,
+        filePath: string,
+        _lines: string[],
+    ): NamingViolation | null {
+        const variableNodeTypes = [
+            AST_VARIABLE_TYPES.VARIABLE_DECLARATOR,
+            AST_VARIABLE_TYPES.REQUIRED_PARAMETER,
+            AST_VARIABLE_TYPES.OPTIONAL_PARAMETER,
+            AST_VARIABLE_TYPES.PUBLIC_FIELD_DEFINITION,
+            AST_VARIABLE_TYPES.PROPERTY_SIGNATURE,
+        ] as const
+
+        if (!(variableNodeTypes as readonly string[]).includes(node.type)) {
+            return null
+        }
+
+        const nameNode = node.childForFieldName(AST_FIELD_NAMES.NAME)
+        if (!nameNode) {
+            return null
+        }
+
+        if (this.isDestructuringPattern(nameNode)) {
+            return null
+        }
+
+        const variableName = nameNode.text
+        const lineNumber = nameNode.startPosition.row + 1
+
+        if (variableName.startsWith("_")) {
+            return null
+        }
+
+        const isConstant = this.isConstantVariable(node)
+
+        if (isConstant) {
+            if (!/^[A-Z][A-Z0-9_]*$/.test(variableName)) {
+                return NamingViolation.create(
+                    variableName,
+                    NAMING_VIOLATION_TYPES.WRONG_CASE,
+                    layer,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.CONSTANT_UPPER_SNAKE_CASE,
+                    variableName,
+                    NAMING_ERROR_MESSAGES.USE_UPPER_SNAKE_CASE_CONSTANT,
+                )
+            }
+        } else {
+            if (!/^[a-z][a-zA-Z0-9]*$/.test(variableName)) {
+                return NamingViolation.create(
+                    variableName,
+                    NAMING_VIOLATION_TYPES.WRONG_CASE,
+                    layer,
+                    `${filePath}:${String(lineNumber)}`,
+                    NAMING_ERROR_MESSAGES.VARIABLE_CAMEL_CASE,
+                    variableName,
+                    NAMING_ERROR_MESSAGES.USE_CAMEL_CASE_VARIABLE,
+                )
+            }
+        }
+
+        return null
+    }
+
+    /**
+     * Checks if node is a destructuring pattern (object or array)
+     */
+    private isDestructuringPattern(node: Parser.SyntaxNode): boolean {
+        return (
+            node.type === AST_PATTERN_TYPES.OBJECT_PATTERN ||
+            node.type === AST_PATTERN_TYPES.ARRAY_PATTERN
+        )
+    }
+
+    /**
+     * Checks if a variable is a constant (exported UPPER_CASE)
+     */
+    private isConstantVariable(node: Parser.SyntaxNode): boolean {
+        const variableName = node.childForFieldName(AST_FIELD_NAMES.NAME)?.text
+        if (!variableName || !/^[A-Z]/.test(variableName)) {
+            return false
+        }
+
+        if (
+            node.type === AST_VARIABLE_TYPES.PUBLIC_FIELD_DEFINITION ||
+            node.type === AST_FIELD_TYPES.FIELD_DEFINITION
+        ) {
+            return this.hasConstModifiers(node)
+        }
+
+        let current: Parser.SyntaxNode | null = node.parent
+
+        while (current) {
+            if (current.type === AST_STATEMENT_TYPES.LEXICAL_DECLARATION) {
+                const firstChild = current.child(0)
+                if (firstChild?.type === AST_MODIFIER_TYPES.CONST) {
+                    return true
+                }
+            }
+
+            if (
+                current.type === AST_VARIABLE_TYPES.PUBLIC_FIELD_DEFINITION ||
+                current.type === AST_FIELD_TYPES.FIELD_DEFINITION
+            ) {
+                return this.hasConstModifiers(current)
+            }
+
+            current = current.parent
+        }
+
+        return false
+    }
+
+    /**
+     * Checks if field has readonly or static modifiers (indicating a constant)
+     */
+    private hasConstModifiers(fieldNode: Parser.SyntaxNode): boolean {
+        for (let i = 0; i < fieldNode.childCount; i++) {
+            const child = fieldNode.child(i)
+            const childText = child?.text
+            if (
+                child?.type === AST_MODIFIER_TYPES.READONLY ||
+                child?.type === AST_MODIFIER_TYPES.STATIC ||
+                childText === AST_MODIFIER_TYPES.READONLY ||
+                childText === AST_MODIFIER_TYPES.STATIC
+            ) {
+                return true
+            }
+        }
+        return false
+    }
+}
--- a/packages/guardian/src/shared/constants/ast-node-types.ts
+++ b/packages/guardian/src/shared/constants/ast-node-types.ts
@@ -0,0 +1,139 @@
+/**
+ * Abstract Syntax Tree (AST) node type constants
+ *
+ * These constants represent tree-sitter AST node types used for code analysis.
+ * Using constants instead of magic strings improves maintainability and prevents typos.
+ *
+ * @see https://tree-sitter.github.io/tree-sitter/
+ */
+
+/**
+ * Class and interface declaration node types
+ */
+export const AST_CLASS_TYPES = {
+    CLASS_DECLARATION: "class_declaration",
+    INTERFACE_DECLARATION: "interface_declaration",
+} as const
+
+/**
+ * Function and method node types
+ */
+export const AST_FUNCTION_TYPES = {
+    FUNCTION_DECLARATION: "function_declaration",
+    METHOD_DEFINITION: "method_definition",
+    FUNCTION_SIGNATURE: "function_signature",
+} as const
+
+/**
+ * Variable and parameter node types
+ */
+export const AST_VARIABLE_TYPES = {
+    VARIABLE_DECLARATOR: "variable_declarator",
+    REQUIRED_PARAMETER: "required_parameter",
+    OPTIONAL_PARAMETER: "optional_parameter",
+    PUBLIC_FIELD_DEFINITION: "public_field_definition",
+    PROPERTY_SIGNATURE: "property_signature",
+} as const
+
+/**
+ * Type system node types
+ */
+export const AST_TYPE_TYPES = {
+    TYPE_ALIAS_DECLARATION: "type_alias_declaration",
+    UNION_TYPE: "union_type",
+    LITERAL_TYPE: "literal_type",
+    TYPE_ANNOTATION: "type_annotation",
+} as const
+
+/**
+ * Statement node types
+ */
+export const AST_STATEMENT_TYPES = {
+    EXPORT_STATEMENT: "export_statement",
+    IMPORT_STATEMENT: "import_statement",
+    LEXICAL_DECLARATION: "lexical_declaration",
+} as const
+
+/**
+ * Expression node types
+ */
+export const AST_EXPRESSION_TYPES = {
+    CALL_EXPRESSION: "call_expression",
+    AS_EXPRESSION: "as_expression",
+} as const
+
+/**
+ * Field and property node types
+ */
+export const AST_FIELD_TYPES = {
+    FIELD_DEFINITION: "field_definition",
+} as const
+
+/**
+ * Pattern node types
+ */
+export const AST_PATTERN_TYPES = {
+    OBJECT_PATTERN: "object_pattern",
+    ARRAY_PATTERN: "array_pattern",
+} as const
+
+/**
+ * Modifier node types
+ */
+export const AST_MODIFIER_TYPES = {
+    READONLY: "readonly",
+    STATIC: "static",
+    CONST: "const",
+} as const
+
+/**
+ * Special identifier node types
+ */
+export const AST_IDENTIFIER_TYPES = {
+    IDENTIFIER: "identifier",
+    TYPE_IDENTIFIER: "type_identifier",
+    PROPERTY_IDENTIFIER: "property_identifier",
+    IMPORT: "import",
+} as const
+
+/**
+ * Node field names used with childForFieldName()
+ */
+export const AST_FIELD_NAMES = {
+    NAME: "name",
+    DECLARATION: "declaration",
+    VALUE: "value",
+    FUNCTION: "function",
+} as const
+
+/**
+ * String fragment node type
+ */
+export const AST_STRING_TYPES = {
+    STRING_FRAGMENT: "string_fragment",
+} as const
+
+/**
+ * Common JavaScript timer functions
+ */
+export const TIMER_FUNCTIONS = {
+    SET_TIMEOUT: "setTimeout",
+    SET_INTERVAL: "setInterval",
+} as const
+
+/**
+ * Value pattern types for pattern matching
+ */
+export const VALUE_PATTERN_TYPES = {
+    EMAIL: "email",
+    API_KEY: "api_key",
+    URL: "url",
+    IP_ADDRESS: "ip_address",
+    FILE_PATH: "file_path",
+    DATE: "date",
+    UUID: "uuid",
+    VERSION: "version",
+    JWT: "jwt",
+    MAC_ADDRESS: "mac_address",
+    BASE64: "base64",
+} as const
--- a/packages/guardian/src/shared/constants/index.ts
+++ b/packages/guardian/src/shared/constants/index.ts
@@ -119,3 +119,4 @@ export const VIOLATION_SEVERITY_MAP = {
 } as const

 export * from "./rules"
+export * from "./ast-node-types"
--- a/packages/guardian/src/shared/constants/rules.ts
+++ b/packages/guardian/src/shared/constants/rules.ts
@@ -459,7 +459,27 @@ export const CONFIG_KEYWORDS = {
    NETWORK: ["endpoint", "host", "domain", "path", "route"],
    DATABASE: ["connection", "database"],
    SECURITY: ["config", "secret", "token", "password", "credential"],
-    MESSAGES: ["message", "error", "warning", "text"],
+    MESSAGES: [
+        "message",
+        "error",
+        "warning",
+        "text",
+        "description",
+        "suggestion",
+        "violation",
+        "expected",
+        "actual",
+    ],
+    TECHNICAL: [
+        "type",
+        "node",
+        "declaration",
+        "definition",
+        "signature",
+        "pattern",
+        "suffix",
+        "prefix",
+    ],
 } as const

 /**
--- a/packages/guardian/tests/unit/infrastructure/NamingConventionDetector.test.ts
+++ b/packages/guardian/tests/unit/infrastructure/NamingConventionDetector.test.ts
--- a/packages/guardian/tsconfig.json
+++ b/packages/guardian/tsconfig.json
@@ -1,19 +1,26 @@
 {
-  "compilerOptions": {
-    "outDir": "./dist",
-    "rootDir": "./src",
-    "target": "ES2023",
-    "module": "CommonJS",
-    "moduleResolution": "node",
-    "declaration": true,
-    "declarationMap": true,
-    "esModuleInterop": true,
-    "allowSyntheticDefaultImports": true,
-    "strict": true,
-    "skipLibCheck": true,
-    "sourceMap": true,
-    "resolveJsonModule": true
-  },
-  "include": ["src/**/*"],
-  "exclude": ["node_modules", "dist", "**/*.spec.ts", "**/*.test.ts"]
+    "compilerOptions": {
+        "outDir": "./dist",
+        "rootDir": "./src",
+        "target": "ES2023",
+        "module": "CommonJS",
+        "moduleResolution": "node",
+        "declaration": true,
+        "declarationMap": true,
+        "esModuleInterop": true,
+        "allowSyntheticDefaultImports": true,
+        "strict": true,
+        "skipLibCheck": true,
+        "sourceMap": true,
+        "resolveJsonModule": true
+    },
+    "include": [
+        "src/**/*"
+    ],
+    "exclude": [
+        "node_modules",
+        "dist",
+        "**/*.spec.ts",
+        "**/*.test.ts"
+    ]
 }
--- a/packages/ipuaro/.gitignore
+++ b/packages/ipuaro/.gitignore
@@ -0,0 +1,13 @@
+# Build output
+dist/
+*.tsbuildinfo
+
+# Dependencies
+node_modules/
+
+# Test coverage
+coverage/
+
+# Logs
+*.log
+npm-debug.log*
--- a/packages/ipuaro/.npmignore
+++ b/packages/ipuaro/.npmignore
@@ -0,0 +1,38 @@
+# Source files (only publish dist/)
+src/
+*.ts
+!*.d.ts
+
+# Build artifacts
+tsconfig.json
+tsconfig.*.json
+tsconfig.tsbuildinfo
+*.tsbuildinfo
+
+# Tests
+**/*.spec.ts
+**/*.test.ts
+__tests__/
+coverage/
+
+# Development
+node_modules/
+.env
+.env.*
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Git
+.git/
+.gitignore
+
+# Other
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.DS_Store
--- a/packages/ipuaro/CHANGELOG.md
+++ b/packages/ipuaro/CHANGELOG.md
@@ -0,0 +1,264 @@
+# Changelog
+
+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).
+
+## [0.5.0] - 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
+
+- **FileScanner (0.3.1)**
+  - Recursive directory scanning with async generator
+  - `.gitignore` support via `globby` (replaced `ignore` package for ESM compatibility)
+  - Filters: binary files, node_modules, dist, default ignore patterns
+  - Progress callback for UI integration
+  - `isTextFile()` and `readFileContent()` static utilities
+  - 22 unit tests
+
+- **ASTParser (0.3.2)**
+  - Tree-sitter based parsing for TS, TSX, JS, JSX
+  - Extracts: imports, exports, functions, classes, interfaces, type aliases
+  - Import classification: internal, external, builtin (using `node:module` builtinModules)
+  - Graceful error handling with partial AST on syntax errors
+  - 30 unit tests
+
+- **MetaAnalyzer (0.3.3)**
+  - Complexity metrics: LOC (excluding comments), nesting depth, cyclomatic complexity, overall score
+  - Dependency resolution: internal imports resolved to absolute file paths
+  - Dependents calculation: reverse dependency lookup across all project files
+  - File type classification: source, test, config, types, unknown
+  - Entry point detection: index files, main/app/cli/server patterns, files with no dependents
+  - Hub detection: files with >5 dependents
+  - Batch analysis via `analyzeAll()` method
+  - 54 unit tests
+
+- **IndexBuilder (0.3.4)**
+  - SymbolIndex: maps symbol names to locations for quick lookup (functions, classes, interfaces, types, variables)
+  - Qualified names for class methods: `ClassName.methodName`
+  - DepsGraph: bidirectional import mapping (`imports` and `importedBy`)
+  - Import resolution: handles `.js` → `.ts`, index.ts, directory imports
+  - `findSymbol()`: exact symbol lookup
+  - `searchSymbols()`: regex-based symbol search
+  - `findCircularDependencies()`: detect import cycles
+  - `getStats()`: comprehensive index statistics (symbols by type, hubs, orphans)
+  - 35 unit tests
+
+- **Watchdog (0.3.5)**
+  - File watching with chokidar (native events + polling fallback)
+  - Debounced change handling (configurable, default 500ms)
+  - Event types: add, change, unlink
+  - Extension filtering (default: SUPPORTED_EXTENSIONS)
+  - Ignore patterns (default: DEFAULT_IGNORE_PATTERNS)
+  - Multiple callback support
+  - `flushAll()` for immediate processing
+  - Silent error handling for stability
+  - 21 unit tests
+
+- **Infrastructure Constants**
+  - `tree-sitter-types.ts`: NodeType and FieldName constants for tree-sitter
+  - Eliminates magic strings in ASTParser
+
+- **Dependencies**
+  - Added `globby` for ESM-native file globbing
+  - Removed `ignore` package (CJS incompatibility with nodenext)
+
+### Changed
+
+- Refactored ASTParser to use constants instead of magic strings
+- Total tests: 321
+- Coverage: 96.43%
+
+---
+
+## [0.2.0] - 2025-01-30
+
+### Added
+
+- **Redis Storage (0.2.x milestone)**
+  - RedisClient: connection wrapper with AOF persistence configuration
+  - RedisStorage: full IStorage implementation with Redis hashes
+  - Redis key schema: project files, AST, meta, indexes, config
+  - Session keys schema: data, undo stack, sessions list
+  - `generateProjectName()` utility for consistent project naming
+
+- **Infrastructure Layer**
+  - `src/infrastructure/storage/` module
+  - Exports via `src/infrastructure/index.ts`
+
+- **Testing**
+  - 68 new unit tests for Redis module
+  - 159 total tests
+  - 99% code coverage maintained
+
+### Changed
+
+- Updated ESLint config: `@typescript-eslint/no-unnecessary-type-parameters` set to warn
+
+### Notes
+
+Redis Storage milestone complete. Next: 0.3.0 - Indexer (FileScanner, AST Parser, Watchdog)
+
+## [0.1.0] - 2025-01-29
+
+### Added
+
+- **Project Setup**
+  - package.json with all dependencies (ink, ioredis, tree-sitter, ollama, etc.)
+  - tsconfig.json for ESM + React JSX
+  - tsup.config.ts for bundling
+  - vitest.config.ts with 80% coverage threshold
+  - CLI entry point (bin/ipuaro.js)
+
+- **Domain Layer**
+  - Entities: Session, Project
+  - Value Objects: FileData, FileAST, FileMeta, ChatMessage, ToolCall, ToolResult, UndoEntry
+  - Service Interfaces: IStorage, ILLMClient, ITool, IIndexer
+  - Constants: supported extensions, ignore patterns, context limits
+
+- **Application Layer**
+  - IToolRegistry interface
+  - Placeholder structure for use cases and DTOs
+
+- **Shared Module**
+  - Config schema with Zod validation
+  - Config loader (default.json + .ipuaro.json)
+  - IpuaroError class with typed errors
+  - Utility functions: md5 hash, token estimation
+  - Result type for error handling
+
+- **CLI**
+  - Basic commands: start, init, index (placeholders)
+  - Commander.js integration
+
+- **Testing**
+  - 91 unit tests
+  - 100% code coverage
+
+### Notes
+
+This is the foundation release. The following features are planned for upcoming versions:
+- 0.2.0: Redis Storage
+- 0.3.0: Indexer
+- 0.4.0: LLM Integration
+- 0.5.0+: Tools implementation
+- 0.10.0+: TUI and session management
--- a/packages/ipuaro/LICENSE
+++ b/packages/ipuaro/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Fozilbek Samiyev
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/packages/ipuaro/README.md
+++ b/packages/ipuaro/README.md
@@ -0,0 +1,284 @@
+# @samiyev/ipuaro 🎩
+
+**Local AI Agent for Codebase Operations**
+
+"Infinite" context feeling through lazy loading - work with your entire codebase using local LLM.
+
+[![npm version](https://badge.fury.io/js/@samiyev%2Fipuaro.svg)](https://www.npmjs.com/package/@samiyev/ipuaro)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+> **Status:** 🚧 Early Development (v0.1.0 Foundation)
+>
+> Core infrastructure is ready. Active development in progress.
+
+## Vision
+
+Work with codebases of any size using local AI:
+- 📂 **Lazy Loading**: Load code on-demand, not all at once
+- 🧠 **Smart Context**: AST-based understanding of your code structure
+- 🔒 **100% Local**: Your code never leaves your machine
+- ⚡ **Fast**: Redis persistence + tree-sitter parsing
+
+## Planned Features
+
+### 18 LLM Tools
+
+| Category | Tools | Status |
+|----------|-------|--------|
+| **Read** | `get_lines`, `get_function`, `get_class`, `get_structure` | 🔜 v0.5.0 |
+| **Edit** | `edit_lines`, `create_file`, `delete_file` | 🔜 v0.6.0 |
+| **Search** | `find_references`, `find_definition` | 🔜 v0.7.0 |
+| **Analysis** | `get_dependencies`, `get_dependents`, `get_complexity`, `get_todos` | 🔜 v0.8.0 |
+| **Git** | `git_status`, `git_diff`, `git_commit` | 🔜 v0.9.0 |
+| **Run** | `run_command`, `run_tests` | 🔜 v0.9.0 |
+
+### Terminal UI
+
+```
+┌─ ipuaro ──────────────────────────────────────────────────┐
+│ [ctx: 12%] [project: myapp] [main] [47m] ✓ Ready          │
+├───────────────────────────────────────────────────────────┤
+│ You: How does the authentication flow work?               │
+│                                                           │
+│ Assistant: Let me analyze the auth module...              │
+│ [get_structure src/auth/]                                 │
+│ [get_function src/auth/service.ts login]                  │
+│                                                           │
+│ The authentication flow works as follows:                 │
+│ 1. User calls POST /auth/login                            │
+│ 2. AuthService.login() validates credentials...           │
+│                                                           │
+│ ⏱ 3.2s │ 1,247 tokens │ 2 tool calls                     │
+├───────────────────────────────────────────────────────────┤
+│ > _                                                       │
+└───────────────────────────────────────────────────────────┘
+```
+
+### Key Capabilities
+
+🔍 **Smart Code Understanding**
+- tree-sitter AST parsing (TypeScript, JavaScript)
+- Symbol index for fast lookups
+- Dependency graph analysis
+
+💾 **Persistent Sessions**
+- Redis storage with AOF persistence
+- Session history across restarts
+- Undo stack for file changes
+
+🛡️ **Security**
+- Command blacklist (dangerous operations blocked)
+- Command whitelist (safe commands auto-approved)
+- Path validation (no access outside project)
+
+## Installation
+
+```bash
+npm install @samiyev/ipuaro
+# or
+pnpm add @samiyev/ipuaro
+```
+
+## Requirements
+
+- **Node.js** >= 20.0.0
+- **Redis** (for persistence)
+- **Ollama** (for local LLM inference)
+
+### Setup Ollama
+
+```bash
+# Install Ollama (macOS)
+brew install ollama
+
+# Start Ollama
+ollama serve
+
+# Pull recommended model
+ollama pull qwen2.5-coder:7b-instruct
+```
+
+### Setup Redis
+
+```bash
+# Install Redis (macOS)
+brew install redis
+
+# Start Redis with persistence
+redis-server --appendonly yes
+```
+
+## Usage
+
+```bash
+# Start ipuaro in current directory
+ipuaro
+
+# Start in specific directory
+ipuaro /path/to/project
+
+# With custom model
+ipuaro --model qwen2.5-coder:32b-instruct
+
+# With auto-apply mode (skip edit confirmations)
+ipuaro --auto-apply
+```
+
+## Commands
+
+| Command | Description |
+|---------|-------------|
+| `ipuaro [path]` | Start TUI in directory |
+| `ipuaro init` | Create `.ipuaro.json` config |
+| `ipuaro index` | Index project without TUI |
+
+## Configuration
+
+Create `.ipuaro.json` in your project root:
+
+```json
+{
+    "redis": {
+        "host": "localhost",
+        "port": 6379
+    },
+    "llm": {
+        "model": "qwen2.5-coder:7b-instruct",
+        "temperature": 0.1
+    },
+    "project": {
+        "ignorePatterns": ["node_modules", "dist", ".git"]
+    },
+    "edit": {
+        "autoApply": false
+    }
+}
+```
+
+## Architecture
+
+Clean Architecture with clear separation:
+
+```
+@samiyev/ipuaro/
+├── domain/              # Business logic (no dependencies)
+│   ├── entities/        # Session, Project
+│   ├── value-objects/   # FileData, FileAST, ChatMessage, etc.
+│   └── services/        # IStorage, ILLMClient, ITool, IIndexer
+├── application/         # Use cases & orchestration
+│   ├── use-cases/       # StartSession, HandleMessage, etc.
+│   └── interfaces/      # IToolRegistry
+├── infrastructure/      # External implementations
+│   ├── storage/         # Redis client & storage
+│   ├── llm/             # Ollama client & prompts
+│   ├── indexer/         # File scanner, AST parser
+│   └── tools/           # 18 tool implementations
+├── tui/                 # Terminal UI (Ink/React)
+│   └── components/      # StatusBar, Chat, Input, etc.
+├── cli/                 # CLI entry point
+└── shared/              # Config, errors, utils
+```
+
+## Development Status
+
+### ✅ Completed (v0.1.0)
+
+- [x] Project setup (tsup, vitest, ESM)
+- [x] Domain entities (Session, Project)
+- [x] Value objects (FileData, FileAST, ChatMessage, etc.)
+- [x] Service interfaces (IStorage, ILLMClient, ITool, IIndexer)
+- [x] Shared module (Config, Errors, Utils)
+- [x] CLI placeholder commands
+- [x] 91 unit tests, 100% coverage
+
+### 🔜 Next Up
+
+- [ ] **v0.2.0** - Redis Storage
+- [ ] **v0.3.0** - Indexer (file scanning, AST parsing)
+- [ ] **v0.4.0** - LLM Integration (Ollama)
+- [ ] **v0.5.0-0.9.0** - Tools implementation
+- [ ] **v0.10.0** - Session management
+- [ ] **v0.11.0** - TUI
+
+See [ROADMAP.md](./ROADMAP.md) for detailed development plan.
+
+## API (Coming Soon)
+
+```typescript
+import { startSession, handleMessage } from "@samiyev/ipuaro"
+
+// Start a session
+const session = await startSession({
+    projectPath: "./my-project",
+    model: "qwen2.5-coder:7b-instruct"
+})
+
+// Send a message
+const response = await handleMessage(session, "Explain the auth flow")
+
+console.log(response.content)
+console.log(`Tokens: ${response.stats.tokens}`)
+console.log(`Tool calls: ${response.stats.toolCalls}`)
+```
+
+## How It Works
+
+### Lazy Loading Context
+
+Instead of loading entire codebase into context:
+
+```
+Traditional approach:
+├── Load all files → 500k tokens → ❌ Exceeds context window
+
+ipuaro approach:
+├── Load project structure → 2k tokens
+├── Load AST metadata → 10k tokens
+├── On demand: get_function("auth.ts", "login") → 200 tokens
+├── Total: ~12k tokens → ✅ Fits in context
+```
+
+### Tool-Based Code Access
+
+```
+User: "How does user creation work?"
+
+ipuaro:
+1. [get_structure src/] → sees user/ folder
+2. [get_function src/user/service.ts createUser] → gets function code
+3. [find_references createUser] → finds all usages
+4. Synthesizes answer with specific code context
+```
+
+## Contributing
+
+Contributions welcome! This project is in early development.
+
+```bash
+# Clone
+git clone https://github.com/samiyev/puaros.git
+cd puaros/packages/ipuaro
+
+# Install
+pnpm install
+
+# Build
+pnpm build
+
+# Test
+pnpm test:run
+
+# Coverage
+pnpm test:coverage
+```
+
+## License
+
+MIT © Fozilbek Samiyev
+
+## Links
+
+- [GitHub Repository](https://github.com/samiyev/puaros/tree/main/packages/ipuaro)
+- [Issues](https://github.com/samiyev/puaros/issues)
+- [Changelog](./CHANGELOG.md)
+- [Roadmap](./ROADMAP.md)
--- a/packages/ipuaro/ROADMAP.md
+++ b/packages/ipuaro/ROADMAP.md
--- a/packages/ipuaro/TODO.md
+++ b/packages/ipuaro/TODO.md
@@ -0,0 +1,54 @@
+# ipuaro TODO
+
+## In Progress
+
+### Version 0.2.0 - Redis Storage
+- [ ] RedisClient with AOF config
+- [ ] Redis schema implementation
+- [ ] RedisStorage class
+
+## 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 0.4.0 - LLM Integration
+- [ ] OllamaClient implementation
+- [ ] System prompt design
+- [ ] Tool definitions (XML format)
+- [ ] Response parser
+
+### 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.)
+
+## Technical Debt
+
+_None at this time._
+
+## Ideas for Future
+
+- Plugin system for custom tools
+- Multiple LLM providers (OpenAI, Anthropic)
+- IDE integration (LSP)
+- Web UI option
+- Parallel AST parsing
+- Response caching
+
+---
+
+**Last Updated:** 2025-01-29
--- a/packages/ipuaro/bin/ipuaro.js
+++ b/packages/ipuaro/bin/ipuaro.js
@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+
+import "../dist/cli/index.js"
--- a/packages/ipuaro/docs/CONCEPT.md
+++ b/packages/ipuaro/docs/CONCEPT.md
--- a/packages/ipuaro/package.json
+++ b/packages/ipuaro/package.json
@@ -0,0 +1,80 @@
+{
+    "name": "@samiyev/ipuaro",
+    "version": "0.5.0",
+    "description": "Local AI agent for codebase operations with infinite context feeling",
+    "author": "Fozilbek Samiyev <fozilbek.samiyev@gmail.com>",
+    "license": "MIT",
+    "type": "module",
+    "main": "./dist/index.js",
+    "types": "./dist/index.d.ts",
+    "bin": {
+        "ipuaro": "./bin/ipuaro.js"
+    },
+    "exports": {
+        ".": {
+            "types": "./dist/index.d.ts",
+            "import": "./dist/index.js"
+        }
+    },
+    "files": [
+        "dist",
+        "bin"
+    ],
+    "scripts": {
+        "build": "tsup",
+        "watch": "tsup --watch",
+        "clean": "rm -rf dist",
+        "test": "vitest",
+        "test:run": "vitest run",
+        "test:coverage": "vitest run --coverage",
+        "test:ui": "vitest --ui",
+        "test:watch": "vitest --watch",
+        "lint": "eslint src --fix",
+        "format": "prettier --write src"
+    },
+    "dependencies": {
+        "chokidar": "^3.6.0",
+        "commander": "^11.1.0",
+        "globby": "^16.0.0",
+        "ink": "^4.4.1",
+        "ink-text-input": "^5.0.1",
+        "ioredis": "^5.4.1",
+        "ollama": "^0.5.11",
+        "react": "^18.2.0",
+        "simple-git": "^3.27.0",
+        "tree-sitter": "^0.21.1",
+        "tree-sitter-javascript": "^0.21.0",
+        "tree-sitter-typescript": "^0.21.2",
+        "zod": "^3.23.8"
+    },
+    "devDependencies": {
+        "@types/node": "^22.10.1",
+        "@types/react": "^18.2.0",
+        "@vitest/coverage-v8": "^1.6.0",
+        "@vitest/ui": "^1.6.0",
+        "tsup": "^8.3.5",
+        "typescript": "^5.7.2",
+        "vitest": "^1.6.0"
+    },
+    "engines": {
+        "node": ">=20.0.0"
+    },
+    "keywords": [
+        "ai",
+        "agent",
+        "codebase",
+        "llm",
+        "ollama",
+        "cli",
+        "terminal"
+    ],
+    "repository": {
+        "type": "git",
+        "url": "git+https://github.com/samiyev/puaros.git",
+        "directory": "packages/ipuaro"
+    },
+    "bugs": {
+        "url": "https://github.com/samiyev/puaros/issues"
+    },
+    "homepage": "https://github.com/samiyev/puaros/tree/main/packages/ipuaro#readme"
+}
--- a/packages/ipuaro/src/application/dtos/index.ts
+++ b/packages/ipuaro/src/application/dtos/index.ts
@@ -0,0 +1,4 @@
+/*
+ * Application DTOs
+ * Will be implemented in version 0.10.0+
+ */
--- a/packages/ipuaro/src/application/index.ts
+++ b/packages/ipuaro/src/application/index.ts
@@ -0,0 +1,10 @@
+// Application Layer exports
+
+// Use Cases
+export * from "./use-cases/index.js"
+
+// DTOs
+export * from "./dtos/index.js"
+
+// Interfaces
+export * from "./interfaces/index.js"
--- a/packages/ipuaro/src/application/interfaces/IToolRegistry.ts
+++ b/packages/ipuaro/src/application/interfaces/IToolRegistry.ts
@@ -0,0 +1,51 @@
+import type { ITool, ToolContext } from "../../domain/services/ITool.js"
+import type { ToolResult } from "../../domain/value-objects/ToolResult.js"
+
+/**
+ * Tool registry interface.
+ * Manages registration and execution of tools.
+ */
+export interface IToolRegistry {
+    /**
+     * Register a tool.
+     */
+    register(tool: ITool): void
+
+    /**
+     * Get tool by name.
+     */
+    get(name: string): ITool | undefined
+
+    /**
+     * Get all registered tools.
+     */
+    getAll(): ITool[]
+
+    /**
+     * Get tools by category.
+     */
+    getByCategory(category: ITool["category"]): ITool[]
+
+    /**
+     * Check if tool exists.
+     */
+    has(name: string): boolean
+
+    /**
+     * Execute tool by name.
+     */
+    execute(name: string, params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult>
+
+    /**
+     * Get tool definitions for LLM.
+     */
+    getToolDefinitions(): {
+        name: string
+        description: string
+        parameters: {
+            type: "object"
+            properties: Record<string, { type: string; description: string }>
+            required: string[]
+        }
+    }[]
+}
--- a/packages/ipuaro/src/application/interfaces/index.ts
+++ b/packages/ipuaro/src/application/interfaces/index.ts
@@ -0,0 +1,2 @@
+// Application Interfaces
+export * from "./IToolRegistry.js"
--- a/packages/ipuaro/src/application/use-cases/index.ts
+++ b/packages/ipuaro/src/application/use-cases/index.ts
@@ -0,0 +1,4 @@
+/*
+ * Application Use Cases
+ * Will be implemented in version 0.10.0+
+ */
--- a/packages/ipuaro/src/cli/index.ts
+++ b/packages/ipuaro/src/cli/index.ts
@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+
+import { Command } from "commander"
+
+const program = new Command()
+
+program
+    .name("ipuaro")
+    .description("Local AI agent for codebase operations with infinite context feeling")
+    .version("0.1.0")
+
+program
+    .command("start")
+    .description("Start ipuaro TUI in the current directory")
+    .argument("[path]", "Project path", ".")
+    .option("--auto-apply", "Enable auto-apply mode for edits")
+    .option("--model <name>", "Override LLM model", "qwen2.5-coder:7b-instruct")
+    .action((path: string, options: { autoApply?: boolean; model?: string }) => {
+        const model = options.model ?? "default"
+        const autoApply = options.autoApply ?? false
+        console.warn(`Starting ipuaro in ${path}...`)
+        console.warn(`Model: ${model}`)
+        console.warn(`Auto-apply: ${autoApply ? "enabled" : "disabled"}`)
+        console.warn("\nNot implemented yet. Coming in version 0.11.0!")
+    })
+
+program
+    .command("init")
+    .description("Create .ipuaro.json config file")
+    .action(() => {
+        console.warn("Creating .ipuaro.json...")
+        console.warn("\nNot implemented yet. Coming in version 0.17.0!")
+    })
+
+program
+    .command("index")
+    .description("Index project without starting TUI")
+    .argument("[path]", "Project path", ".")
+    .action((path: string) => {
+        console.warn(`Indexing ${path}...`)
+        console.warn("\nNot implemented yet. Coming in version 0.3.0!")
+    })
+
+program.parse()
--- a/packages/ipuaro/src/domain/constants/index.ts
+++ b/packages/ipuaro/src/domain/constants/index.ts
@@ -0,0 +1,48 @@
+// Domain Constants
+
+export const MAX_UNDO_STACK_SIZE = 10
+
+export const SUPPORTED_EXTENSIONS = [
+    ".ts",
+    ".tsx",
+    ".js",
+    ".jsx",
+    ".json",
+    ".yaml",
+    ".yml",
+] as const
+
+export const BINARY_EXTENSIONS = [
+    ".png",
+    ".jpg",
+    ".jpeg",
+    ".gif",
+    ".ico",
+    ".svg",
+    ".woff",
+    ".woff2",
+    ".ttf",
+    ".eot",
+    ".mp3",
+    ".mp4",
+    ".webm",
+    ".pdf",
+    ".zip",
+    ".tar",
+    ".gz",
+] as const
+
+export const DEFAULT_IGNORE_PATTERNS = [
+    "node_modules",
+    "dist",
+    "build",
+    ".git",
+    ".next",
+    ".nuxt",
+    "coverage",
+    ".cache",
+] as const
+
+export const CONTEXT_WINDOW_SIZE = 128_000
+
+export const CONTEXT_COMPRESSION_THRESHOLD = 0.8
--- a/packages/ipuaro/src/domain/entities/Project.ts
+++ b/packages/ipuaro/src/domain/entities/Project.ts
@@ -0,0 +1,61 @@
+import { basename, dirname } from "node:path"
+
+/**
+ * Project entity representing an indexed codebase.
+ */
+export class Project {
+    readonly name: string
+    readonly rootPath: string
+    readonly createdAt: number
+    lastIndexedAt: number | null
+    fileCount: number
+    indexingInProgress: boolean
+
+    constructor(rootPath: string, createdAt?: number) {
+        this.rootPath = rootPath
+        this.name = Project.generateProjectName(rootPath)
+        this.createdAt = createdAt ?? Date.now()
+        this.lastIndexedAt = null
+        this.fileCount = 0
+        this.indexingInProgress = false
+    }
+
+    /**
+     * Generate project name from path.
+     * Format: {parent-folder}-{project-folder}
+     */
+    static generateProjectName(rootPath: string): string {
+        const projectFolder = basename(rootPath)
+        const parentFolder = basename(dirname(rootPath))
+
+        if (parentFolder && parentFolder !== ".") {
+            return `${parentFolder}-${projectFolder}`
+        }
+        return projectFolder
+    }
+
+    markIndexingStarted(): void {
+        this.indexingInProgress = true
+    }
+
+    markIndexingCompleted(fileCount: number): void {
+        this.indexingInProgress = false
+        this.lastIndexedAt = Date.now()
+        this.fileCount = fileCount
+    }
+
+    markIndexingFailed(): void {
+        this.indexingInProgress = false
+    }
+
+    isIndexed(): boolean {
+        return this.lastIndexedAt !== null
+    }
+
+    getTimeSinceIndexed(): number | null {
+        if (this.lastIndexedAt === null) {
+            return null
+        }
+        return Date.now() - this.lastIndexedAt
+    }
+}
--- a/packages/ipuaro/src/domain/entities/Session.ts
+++ b/packages/ipuaro/src/domain/entities/Session.ts
@@ -0,0 +1,120 @@
+import type { ChatMessage } from "../value-objects/ChatMessage.js"
+import type { UndoEntry } from "../value-objects/UndoEntry.js"
+import { MAX_UNDO_STACK_SIZE } from "../constants/index.js"
+
+/**
+ * Session statistics.
+ */
+export interface SessionStats {
+    /** Total tokens used */
+    totalTokens: number
+    /** Total time in milliseconds */
+    totalTimeMs: number
+    /** Number of tool calls made */
+    toolCalls: number
+    /** Number of edits applied */
+    editsApplied: number
+    /** Number of edits rejected */
+    editsRejected: number
+}
+
+/**
+ * Context state for the session.
+ */
+export interface ContextState {
+    /** Files currently in context */
+    filesInContext: string[]
+    /** Estimated token usage (0-1) */
+    tokenUsage: number
+    /** Whether compression is needed */
+    needsCompression: boolean
+}
+
+/**
+ * Session entity representing a chat session.
+ */
+export class Session {
+    readonly id: string
+    readonly projectName: string
+    readonly createdAt: number
+    lastActivityAt: number
+    history: ChatMessage[]
+    context: ContextState
+    undoStack: UndoEntry[]
+    stats: SessionStats
+    inputHistory: string[]
+
+    constructor(id: string, projectName: string, createdAt?: number) {
+        this.id = id
+        this.projectName = projectName
+        this.createdAt = createdAt ?? Date.now()
+        this.lastActivityAt = this.createdAt
+        this.history = []
+        this.context = {
+            filesInContext: [],
+            tokenUsage: 0,
+            needsCompression: false,
+        }
+        this.undoStack = []
+        this.stats = {
+            totalTokens: 0,
+            totalTimeMs: 0,
+            toolCalls: 0,
+            editsApplied: 0,
+            editsRejected: 0,
+        }
+        this.inputHistory = []
+    }
+
+    addMessage(message: ChatMessage): void {
+        this.history.push(message)
+        this.lastActivityAt = Date.now()
+
+        if (message.stats) {
+            this.stats.totalTokens += message.stats.tokens
+            this.stats.totalTimeMs += message.stats.timeMs
+            this.stats.toolCalls += message.stats.toolCalls
+        }
+    }
+
+    addUndoEntry(entry: UndoEntry): void {
+        this.undoStack.push(entry)
+        if (this.undoStack.length > MAX_UNDO_STACK_SIZE) {
+            this.undoStack.shift()
+        }
+    }
+
+    popUndoEntry(): UndoEntry | undefined {
+        return this.undoStack.pop()
+    }
+
+    addInputToHistory(input: string): void {
+        if (input.trim() && this.inputHistory[this.inputHistory.length - 1] !== input) {
+            this.inputHistory.push(input)
+        }
+    }
+
+    clearHistory(): void {
+        this.history = []
+        this.context = {
+            filesInContext: [],
+            tokenUsage: 0,
+            needsCompression: false,
+        }
+    }
+
+    getSessionDurationMs(): number {
+        return Date.now() - this.createdAt
+    }
+
+    getSessionDurationFormatted(): string {
+        const totalMinutes = Math.floor(this.getSessionDurationMs() / 60_000)
+        const hours = Math.floor(totalMinutes / 60)
+        const minutes = totalMinutes % 60
+
+        if (hours > 0) {
+            return `${String(hours)}h ${String(minutes)}m`
+        }
+        return `${String(minutes)}m`
+    }
+}
--- a/packages/ipuaro/src/domain/entities/index.ts
+++ b/packages/ipuaro/src/domain/entities/index.ts
@@ -0,0 +1,3 @@
+// Domain Entities
+export * from "./Session.js"
+export * from "./Project.js"
--- a/packages/ipuaro/src/domain/index.ts
+++ b/packages/ipuaro/src/domain/index.ts
@@ -0,0 +1,13 @@
+// Domain Layer exports
+
+// Entities
+export * from "./entities/index.js"
+
+// Value Objects
+export * from "./value-objects/index.js"
+
+// Service Interfaces
+export * from "./services/index.js"
+
+// Constants
+export * from "./constants/index.js"
--- a/packages/ipuaro/src/domain/services/IIndexer.ts
+++ b/packages/ipuaro/src/domain/services/IIndexer.ts
@@ -0,0 +1,83 @@
+import type { FileAST } from "../value-objects/FileAST.js"
+import type { FileData } from "../value-objects/FileData.js"
+import type { FileMeta } from "../value-objects/FileMeta.js"
+import type { DepsGraph, SymbolIndex } from "./IStorage.js"
+
+/**
+ * Progress callback for indexing operations.
+ */
+export interface IndexProgress {
+    current: number
+    total: number
+    currentFile: string
+    phase: "scanning" | "parsing" | "analyzing" | "indexing"
+}
+
+/**
+ * Result of scanning a single file.
+ */
+export interface ScanResult {
+    path: string
+    type: "file" | "directory" | "symlink"
+    size: number
+    lastModified: number
+}
+
+/**
+ * Indexing result statistics.
+ */
+export interface IndexingStats {
+    filesScanned: number
+    filesParsed: number
+    parseErrors: number
+    timeMs: number
+}
+
+/**
+ * Indexer service interface (port).
+ * Handles project scanning, parsing, and indexing.
+ */
+export interface IIndexer {
+    /**
+     * Scan directory and yield file results.
+     */
+    scan(root: string): AsyncGenerator<ScanResult>
+
+    /**
+     * Parse file content into AST.
+     */
+    parseFile(content: string, language: "ts" | "tsx" | "js" | "jsx"): FileAST
+
+    /**
+     * Analyze file and compute metadata.
+     */
+    analyzeFile(path: string, ast: FileAST, allASTs: Map<string, FileAST>): FileMeta
+
+    /**
+     * Build symbol index from all ASTs.
+     */
+    buildSymbolIndex(asts: Map<string, FileAST>): SymbolIndex
+
+    /**
+     * Build dependency graph from all ASTs.
+     */
+    buildDepsGraph(asts: Map<string, FileAST>): DepsGraph
+
+    /**
+     * Full indexing pipeline.
+     */
+    indexProject(
+        root: string,
+        onProgress?: (progress: IndexProgress) => void,
+    ): Promise<IndexingStats>
+
+    /**
+     * Update single file (incremental indexing).
+     */
+    updateFile(path: string, data: FileData): Promise<void>
+
+    /**
+     * Remove file from index.
+     */
+    removeFile(path: string): Promise<void>
+}
--- a/packages/ipuaro/src/domain/services/ILLMClient.ts
+++ b/packages/ipuaro/src/domain/services/ILLMClient.ts
@@ -0,0 +1,81 @@
+import type { ChatMessage } from "../value-objects/ChatMessage.js"
+import type { ToolCall } from "../value-objects/ToolCall.js"
+
+/**
+ * Tool parameter definition for LLM.
+ */
+export interface ToolParameter {
+    name: string
+    type: "string" | "number" | "boolean" | "array" | "object"
+    description: string
+    required: boolean
+    enum?: string[]
+}
+
+/**
+ * Tool definition for LLM function calling.
+ */
+export interface ToolDef {
+    name: string
+    description: string
+    parameters: ToolParameter[]
+}
+
+/**
+ * Response from LLM.
+ */
+export interface LLMResponse {
+    /** Text content of the response */
+    content: string
+    /** Tool calls parsed from response */
+    toolCalls: ToolCall[]
+    /** Token count for this response */
+    tokens: number
+    /** Generation time in milliseconds */
+    timeMs: number
+    /** Whether response was truncated */
+    truncated: boolean
+    /** Stop reason */
+    stopReason: "end" | "length" | "tool_use"
+}
+
+/**
+ * LLM client service interface (port).
+ * Abstracts the LLM provider.
+ */
+export interface ILLMClient {
+    /**
+     * Send messages to LLM and get response.
+     */
+    chat(messages: ChatMessage[], tools?: ToolDef[]): Promise<LLMResponse>
+
+    /**
+     * Count tokens in text.
+     */
+    countTokens(text: string): Promise<number>
+
+    /**
+     * Check if LLM service is available.
+     */
+    isAvailable(): Promise<boolean>
+
+    /**
+     * Get current model name.
+     */
+    getModelName(): string
+
+    /**
+     * Get context window size.
+     */
+    getContextWindowSize(): number
+
+    /**
+     * Pull/download model if not available locally.
+     */
+    pullModel(model: string): Promise<void>
+
+    /**
+     * Abort current generation.
+     */
+    abort(): void
+}
--- a/packages/ipuaro/src/domain/services/IStorage.ts
+++ b/packages/ipuaro/src/domain/services/IStorage.ts
@@ -0,0 +1,65 @@
+import type { FileData } from "../value-objects/FileData.js"
+import type { FileAST } from "../value-objects/FileAST.js"
+import type { FileMeta } from "../value-objects/FileMeta.js"
+
+/**
+ * Symbol index mapping symbol names to their locations.
+ */
+export interface SymbolLocation {
+    path: string
+    line: number
+    type: "function" | "class" | "interface" | "type" | "variable"
+}
+
+export type SymbolIndex = Map<string, SymbolLocation[]>
+
+/**
+ * Dependencies graph for the project.
+ */
+export interface DepsGraph {
+    /** Map from file path to its imports */
+    imports: Map<string, string[]>
+    /** Map from file path to files that import it */
+    importedBy: Map<string, string[]>
+}
+
+/**
+ * Storage service interface (port).
+ * Abstracts the persistence layer for project data.
+ */
+export interface IStorage {
+    // File data operations
+    getFile(path: string): Promise<FileData | null>
+    setFile(path: string, data: FileData): Promise<void>
+    deleteFile(path: string): Promise<void>
+    getAllFiles(): Promise<Map<string, FileData>>
+    getFileCount(): Promise<number>
+
+    // AST operations
+    getAST(path: string): Promise<FileAST | null>
+    setAST(path: string, ast: FileAST): Promise<void>
+    deleteAST(path: string): Promise<void>
+    getAllASTs(): Promise<Map<string, FileAST>>
+
+    // Meta operations
+    getMeta(path: string): Promise<FileMeta | null>
+    setMeta(path: string, meta: FileMeta): Promise<void>
+    deleteMeta(path: string): Promise<void>
+    getAllMetas(): Promise<Map<string, FileMeta>>
+
+    // Index operations
+    getSymbolIndex(): Promise<SymbolIndex>
+    setSymbolIndex(index: SymbolIndex): Promise<void>
+    getDepsGraph(): Promise<DepsGraph>
+    setDepsGraph(graph: DepsGraph): Promise<void>
+
+    // Config operations
+    getProjectConfig(key: string): Promise<unknown>
+    setProjectConfig(key: string, value: unknown): Promise<void>
+
+    // Lifecycle
+    connect(): Promise<void>
+    disconnect(): Promise<void>
+    isConnected(): boolean
+    clear(): Promise<void>
+}
--- a/packages/ipuaro/src/domain/services/ITool.ts
+++ b/packages/ipuaro/src/domain/services/ITool.ts
@@ -0,0 +1,68 @@
+import type { ToolResult } from "../value-objects/ToolResult.js"
+import type { IStorage } from "./IStorage.js"
+
+/**
+ * Tool parameter schema.
+ */
+export interface ToolParameterSchema {
+    name: string
+    type: "string" | "number" | "boolean" | "array" | "object"
+    description: string
+    required: boolean
+    default?: unknown
+}
+
+/**
+ * Context provided to tools during execution.
+ */
+export interface ToolContext {
+    /** Project root path */
+    projectRoot: string
+    /** Storage service */
+    storage: IStorage
+    /** Request user confirmation callback */
+    requestConfirmation: (message: string, diff?: DiffInfo) => Promise<boolean>
+    /** Report progress callback */
+    onProgress?: (message: string) => void
+}
+
+/**
+ * Diff information for confirmation dialogs.
+ */
+export interface DiffInfo {
+    filePath: string
+    oldLines: string[]
+    newLines: string[]
+    startLine: number
+}
+
+/**
+ * Tool interface (port).
+ * All tools must implement this interface.
+ */
+export interface ITool {
+    /** Tool name (used in tool calls) */
+    readonly name: string
+
+    /** Human-readable description */
+    readonly description: string
+
+    /** Tool parameters schema */
+    readonly parameters: ToolParameterSchema[]
+
+    /** Whether tool requires user confirmation before execution */
+    readonly requiresConfirmation: boolean
+
+    /** Tool category */
+    readonly category: "read" | "edit" | "search" | "analysis" | "git" | "run"
+
+    /**
+     * Execute the tool with given parameters.
+     */
+    execute(params: Record<string, unknown>, ctx: ToolContext): Promise<ToolResult>
+
+    /**
+     * Validate parameters before execution.
+     */
+    validateParams(params: Record<string, unknown>): string | null
+}
--- a/packages/ipuaro/src/domain/services/index.ts
+++ b/packages/ipuaro/src/domain/services/index.ts
@@ -0,0 +1,5 @@
+// Domain Service Interfaces (Ports)
+export * from "./IStorage.js"
+export * from "./ILLMClient.js"
+export * from "./ITool.js"
+export * from "./IIndexer.js"
--- a/packages/ipuaro/src/domain/value-objects/ChatMessage.ts
+++ b/packages/ipuaro/src/domain/value-objects/ChatMessage.ts
@@ -0,0 +1,79 @@
+import type { ToolCall } from "./ToolCall.js"
+import type { ToolResult } from "./ToolResult.js"
+
+/**
+ * Represents a message in the chat history.
+ */
+
+export type MessageRole = "user" | "assistant" | "tool" | "system"
+
+export interface MessageStats {
+    /** Token count for this message */
+    tokens: number
+    /** Response generation time in ms (for assistant messages) */
+    timeMs: number
+    /** Number of tool calls in this message */
+    toolCalls: number
+}
+
+export interface ChatMessage {
+    /** Message role */
+    role: MessageRole
+    /** Message content */
+    content: string
+    /** Timestamp when message was created */
+    timestamp: number
+    /** Tool calls made by assistant (if any) */
+    toolCalls?: ToolCall[]
+    /** Tool results (for tool role messages) */
+    toolResults?: ToolResult[]
+    /** Message statistics */
+    stats?: MessageStats
+}
+
+export function createUserMessage(content: string): ChatMessage {
+    return {
+        role: "user",
+        content,
+        timestamp: Date.now(),
+    }
+}
+
+export function createAssistantMessage(
+    content: string,
+    toolCalls?: ToolCall[],
+    stats?: MessageStats,
+): ChatMessage {
+    return {
+        role: "assistant",
+        content,
+        timestamp: Date.now(),
+        toolCalls,
+        stats,
+    }
+}
+
+export function createToolMessage(results: ToolResult[]): ChatMessage {
+    return {
+        role: "tool",
+        content: results.map((r) => formatToolResult(r)).join("\n\n"),
+        timestamp: Date.now(),
+        toolResults: results,
+    }
+}
+
+export function createSystemMessage(content: string): ChatMessage {
+    return {
+        role: "system",
+        content,
+        timestamp: Date.now(),
+    }
+}
+
+function formatToolResult(result: ToolResult): string {
+    if (result.success) {
+        return `[${result.callId}] Success: ${JSON.stringify(result.data)}`
+    }
+    const errorMsg = result.error ?? "Unknown error"
+    return `[${result.callId}] Error: ${errorMsg}`
+}
--- a/packages/ipuaro/src/domain/value-objects/FileAST.ts
+++ b/packages/ipuaro/src/domain/value-objects/FileAST.ts
@@ -0,0 +1,163 @@
+/**
+ * Represents parsed AST information for a file.
+ */
+
+export interface ImportInfo {
+    /** Import name or alias */
+    name: string
+    /** Source module path */
+    from: string
+    /** Line number of import statement */
+    line: number
+    /** Import type classification */
+    type: "internal" | "external" | "builtin"
+    /** Whether it's a default import */
+    isDefault: boolean
+}
+
+export interface ExportInfo {
+    /** Exported name */
+    name: string
+    /** Line number of export */
+    line: number
+    /** Whether it's a default export */
+    isDefault: boolean
+    /** Export type: function, class, variable, type */
+    kind: "function" | "class" | "variable" | "type" | "interface"
+}
+
+export interface ParameterInfo {
+    /** Parameter name */
+    name: string
+    /** Parameter type (if available) */
+    type?: string
+    /** Whether it's optional */
+    optional: boolean
+    /** Whether it has a default value */
+    hasDefault: boolean
+}
+
+export interface FunctionInfo {
+    /** Function name */
+    name: string
+    /** Start line number */
+    lineStart: number
+    /** End line number */
+    lineEnd: number
+    /** Function parameters */
+    params: ParameterInfo[]
+    /** Whether function is async */
+    isAsync: boolean
+    /** Whether function is exported */
+    isExported: boolean
+    /** Return type (if available) */
+    returnType?: string
+}
+
+export interface MethodInfo {
+    /** Method name */
+    name: string
+    /** Start line number */
+    lineStart: number
+    /** End line number */
+    lineEnd: number
+    /** Method parameters */
+    params: ParameterInfo[]
+    /** Whether method is async */
+    isAsync: boolean
+    /** Method visibility */
+    visibility: "public" | "private" | "protected"
+    /** Whether it's static */
+    isStatic: boolean
+}
+
+export interface PropertyInfo {
+    /** Property name */
+    name: string
+    /** Line number */
+    line: number
+    /** Property type (if available) */
+    type?: string
+    /** Property visibility */
+    visibility: "public" | "private" | "protected"
+    /** Whether it's static */
+    isStatic: boolean
+    /** Whether it's readonly */
+    isReadonly: boolean
+}
+
+export interface ClassInfo {
+    /** Class name */
+    name: string
+    /** Start line number */
+    lineStart: number
+    /** End line number */
+    lineEnd: number
+    /** Class methods */
+    methods: MethodInfo[]
+    /** Class properties */
+    properties: PropertyInfo[]
+    /** Extended class name */
+    extends?: string
+    /** Implemented interfaces */
+    implements: string[]
+    /** Whether class is exported */
+    isExported: boolean
+    /** Whether class is abstract */
+    isAbstract: boolean
+}
+
+export interface InterfaceInfo {
+    /** Interface name */
+    name: string
+    /** Start line number */
+    lineStart: number
+    /** End line number */
+    lineEnd: number
+    /** Interface properties */
+    properties: PropertyInfo[]
+    /** Extended interfaces */
+    extends: string[]
+    /** Whether interface is exported */
+    isExported: boolean
+}
+
+export interface TypeAliasInfo {
+    /** Type alias name */
+    name: string
+    /** Line number */
+    line: number
+    /** Whether it's exported */
+    isExported: boolean
+}
+
+export interface FileAST {
+    /** Import statements */
+    imports: ImportInfo[]
+    /** Export statements */
+    exports: ExportInfo[]
+    /** Function declarations */
+    functions: FunctionInfo[]
+    /** Class declarations */
+    classes: ClassInfo[]
+    /** Interface declarations */
+    interfaces: InterfaceInfo[]
+    /** Type alias declarations */
+    typeAliases: TypeAliasInfo[]
+    /** Whether parsing encountered errors */
+    parseError: boolean
+    /** Parse error message if any */
+    parseErrorMessage?: string
+}
+
+export function createEmptyFileAST(): FileAST {
+    return {
+        imports: [],
+        exports: [],
+        functions: [],
+        classes: [],
+        interfaces: [],
+        typeAliases: [],
+        parseError: false,
+    }
+}
--- a/packages/ipuaro/src/domain/value-objects/FileData.ts
+++ b/packages/ipuaro/src/domain/value-objects/FileData.ts
@@ -0,0 +1,26 @@
+/**
+ * Represents file content with metadata for change detection.
+ */
+export interface FileData {
+    /** File content split into lines */
+    lines: string[]
+    /** MD5 hash for change detection */
+    hash: string
+    /** File size in bytes */
+    size: number
+    /** Last modification timestamp (ms) */
+    lastModified: number
+}
+
+export function createFileData(
+    lines: string[],
+    hash: string,
+    size: number,
+    lastModified: number,
+): FileData {
+    return { lines, hash, size, lastModified }
+}
+
+export function isFileDataEqual(a: FileData, b: FileData): boolean {
+    return a.hash === b.hash
+}
--- a/packages/ipuaro/src/domain/value-objects/FileMeta.ts
+++ b/packages/ipuaro/src/domain/value-objects/FileMeta.ts
@@ -0,0 +1,50 @@
+/**
+ * Represents computed metadata about a file.
+ */
+
+export interface ComplexityMetrics {
+    /** Lines of code (excluding empty and comments) */
+    loc: number
+    /** Maximum nesting depth */
+    nesting: number
+    /** Cyclomatic complexity score */
+    cyclomaticComplexity: number
+    /** Overall complexity score (0-100) */
+    score: number
+}
+
+export interface FileMeta {
+    /** Complexity metrics for the file */
+    complexity: ComplexityMetrics
+    /** Files that this file imports (internal paths) */
+    dependencies: string[]
+    /** Files that import this file */
+    dependents: string[]
+    /** Whether file is a dependency hub (>5 dependents) */
+    isHub: boolean
+    /** Whether file is an entry point (index.ts or 0 dependents) */
+    isEntryPoint: boolean
+    /** File type classification */
+    fileType: "source" | "test" | "config" | "types" | "unknown"
+}
+
+export function createFileMeta(partial: Partial<FileMeta> = {}): FileMeta {
+    return {
+        complexity: {
+            loc: 0,
+            nesting: 0,
+            cyclomaticComplexity: 1,
+            score: 0,
+        },
+        dependencies: [],
+        dependents: [],
+        isHub: false,
+        isEntryPoint: false,
+        fileType: "unknown",
+        ...partial,
+    }
+}
+
+export function isHubFile(dependentCount: number): boolean {
+    return dependentCount > 5
+}
--- a/packages/ipuaro/src/domain/value-objects/ToolCall.ts
+++ b/packages/ipuaro/src/domain/value-objects/ToolCall.ts
@@ -0,0 +1,27 @@
+/**
+ * Represents a tool call from the LLM.
+ */
+
+export interface ToolCall {
+    /** Unique identifier for this call */
+    id: string
+    /** Tool name */
+    name: string
+    /** Tool parameters */
+    params: Record<string, unknown>
+    /** Timestamp when call was made */
+    timestamp: number
+}
+
+export function createToolCall(
+    id: string,
+    name: string,
+    params: Record<string, unknown>,
+): ToolCall {
+    return {
+        id,
+        name,
+        params,
+        timestamp: Date.now(),
+    }
+}
--- a/packages/ipuaro/src/domain/value-objects/ToolResult.ts
+++ b/packages/ipuaro/src/domain/value-objects/ToolResult.ts
@@ -0,0 +1,42 @@
+/**
+ * Represents the result of a tool execution.
+ */
+
+export interface ToolResult {
+    /** Tool call ID this result belongs to */
+    callId: string
+    /** Whether execution was successful */
+    success: boolean
+    /** Result data (varies by tool) */
+    data?: unknown
+    /** Error message if failed */
+    error?: string
+    /** Execution time in milliseconds */
+    executionTimeMs: number
+}
+
+export function createSuccessResult(
+    callId: string,
+    data: unknown,
+    executionTimeMs: number,
+): ToolResult {
+    return {
+        callId,
+        success: true,
+        data,
+        executionTimeMs,
+    }
+}
+
+export function createErrorResult(
+    callId: string,
+    error: string,
+    executionTimeMs: number,
+): ToolResult {
+    return {
+        callId,
+        success: false,
+        error,
+        executionTimeMs,
+    }
+}
--- a/packages/ipuaro/src/domain/value-objects/UndoEntry.ts
+++ b/packages/ipuaro/src/domain/value-objects/UndoEntry.ts
@@ -0,0 +1,50 @@
+/**
+ * Represents an undo entry for file changes.
+ */
+
+export interface UndoEntry {
+    /** Unique identifier */
+    id: string
+    /** Timestamp when change was made */
+    timestamp: number
+    /** File path that was modified */
+    filePath: string
+    /** Content before the change */
+    previousContent: string[]
+    /** Content after the change */
+    newContent: string[]
+    /** Human-readable description of the change */
+    description: string
+    /** Tool call ID that made this change */
+    toolCallId?: string
+}
+
+export function createUndoEntry(
+    id: string,
+    filePath: string,
+    previousContent: string[],
+    newContent: string[],
+    description: string,
+    toolCallId?: string,
+): UndoEntry {
+    return {
+        id,
+        timestamp: Date.now(),
+        filePath,
+        previousContent,
+        newContent,
+        description,
+        toolCallId,
+    }
+}
+
+export function canUndo(entry: UndoEntry, currentContent: string[]): boolean {
+    return arraysEqual(entry.newContent, currentContent)
+}
+
+function arraysEqual(a: string[], b: string[]): boolean {
+    if (a.length !== b.length) {
+        return false
+    }
+    return a.every((line, i) => line === b[i])
+}
--- a/packages/ipuaro/src/domain/value-objects/index.ts
+++ b/packages/ipuaro/src/domain/value-objects/index.ts
@@ -0,0 +1,8 @@
+// Domain Value Objects
+export * from "./FileData.js"
+export * from "./FileAST.js"
+export * from "./FileMeta.js"
+export * from "./ChatMessage.js"
+export * from "./ToolCall.js"
+export * from "./ToolResult.js"
+export * from "./UndoEntry.js"
--- a/packages/ipuaro/src/index.ts
+++ b/packages/ipuaro/src/index.ts
@@ -0,0 +1,25 @@
+/**
+ * @puaros/ipuaro - Local AI agent for codebase operations
+ *
+ * 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"
+
+// Application exports
+export * from "./application/index.js"
+
+// Shared exports
+export * from "./shared/index.js"
+
+// Infrastructure exports
+export * from "./infrastructure/index.js"
+
+// Version
+export const VERSION = pkg.version
--- a/packages/ipuaro/src/infrastructure/index.ts
+++ b/packages/ipuaro/src/infrastructure/index.ts
@@ -0,0 +1,5 @@
+// Infrastructure layer exports
+export * from "./storage/index.js"
+export * from "./indexer/index.js"
+export * from "./llm/index.js"
+export * from "./tools/index.js"
--- a/packages/ipuaro/src/infrastructure/indexer/ASTParser.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/ASTParser.ts
@@ -0,0 +1,551 @@
+import { builtinModules } from "node:module"
+import Parser from "tree-sitter"
+import TypeScript from "tree-sitter-typescript"
+import JavaScript from "tree-sitter-javascript"
+import {
+    createEmptyFileAST,
+    type ExportInfo,
+    type FileAST,
+    type ImportInfo,
+    type MethodInfo,
+    type ParameterInfo,
+    type PropertyInfo,
+} from "../../domain/value-objects/FileAST.js"
+import { FieldName, NodeType } from "./tree-sitter-types.js"
+
+type Language = "ts" | "tsx" | "js" | "jsx"
+type SyntaxNode = Parser.SyntaxNode
+
+/**
+ * Parses source code into AST using tree-sitter.
+ */
+export class ASTParser {
+    private readonly parsers = new Map<Language, Parser>()
+
+    constructor() {
+        this.initializeParsers()
+    }
+
+    private initializeParsers(): void {
+        const tsParser = new Parser()
+        tsParser.setLanguage(TypeScript.typescript)
+        this.parsers.set("ts", tsParser)
+
+        const tsxParser = new Parser()
+        tsxParser.setLanguage(TypeScript.tsx)
+        this.parsers.set("tsx", tsxParser)
+
+        const jsParser = new Parser()
+        jsParser.setLanguage(JavaScript)
+        this.parsers.set("js", jsParser)
+        this.parsers.set("jsx", jsParser)
+    }
+
+    /**
+     * Parse source code and extract AST information.
+     */
+    parse(content: string, language: Language): FileAST {
+        const parser = this.parsers.get(language)
+        if (!parser) {
+            return {
+                ...createEmptyFileAST(),
+                parseError: true,
+                parseErrorMessage: `Unsupported language: ${language}`,
+            }
+        }
+
+        try {
+            const tree = parser.parse(content)
+            const root = tree.rootNode
+
+            if (root.hasError) {
+                const ast = this.extractAST(root, language)
+                ast.parseError = true
+                ast.parseErrorMessage = "Syntax error in source code"
+                return ast
+            }
+
+            return this.extractAST(root, language)
+        } catch (error) {
+            return {
+                ...createEmptyFileAST(),
+                parseError: true,
+                parseErrorMessage: error instanceof Error ? error.message : "Unknown parse error",
+            }
+        }
+    }
+
+    private extractAST(root: SyntaxNode, language: Language): FileAST {
+        const ast = createEmptyFileAST()
+        const isTypeScript = language === "ts" || language === "tsx"
+
+        for (const child of root.children) {
+            this.visitNode(child, ast, isTypeScript)
+        }
+
+        return ast
+    }
+
+    private visitNode(node: SyntaxNode, ast: FileAST, isTypeScript: boolean): void {
+        switch (node.type) {
+            case NodeType.IMPORT_STATEMENT:
+                this.extractImport(node, ast)
+                break
+            case NodeType.EXPORT_STATEMENT:
+                this.extractExport(node, ast)
+                break
+            case NodeType.FUNCTION_DECLARATION:
+                this.extractFunction(node, ast, false)
+                break
+            case NodeType.LEXICAL_DECLARATION:
+                this.extractLexicalDeclaration(node, ast)
+                break
+            case NodeType.CLASS_DECLARATION:
+                this.extractClass(node, ast, false)
+                break
+            case NodeType.INTERFACE_DECLARATION:
+                if (isTypeScript) {
+                    this.extractInterface(node, ast, false)
+                }
+                break
+            case NodeType.TYPE_ALIAS_DECLARATION:
+                if (isTypeScript) {
+                    this.extractTypeAlias(node, ast, false)
+                }
+                break
+        }
+    }
+
+    private extractImport(node: SyntaxNode, ast: FileAST): void {
+        const sourceNode = node.childForFieldName(FieldName.SOURCE)
+        if (!sourceNode) {
+            return
+        }
+
+        const from = this.getStringValue(sourceNode)
+        const line = node.startPosition.row + 1
+        const importType = this.classifyImport(from)
+
+        const importClause = node.children.find((c) => c.type === NodeType.IMPORT_CLAUSE)
+        if (!importClause) {
+            ast.imports.push({
+                name: "*",
+                from,
+                line,
+                type: importType,
+                isDefault: false,
+            })
+            return
+        }
+
+        for (const child of importClause.children) {
+            if (child.type === NodeType.IDENTIFIER) {
+                ast.imports.push({
+                    name: child.text,
+                    from,
+                    line,
+                    type: importType,
+                    isDefault: true,
+                })
+            } else if (child.type === NodeType.NAMESPACE_IMPORT) {
+                const alias = child.children.find((c) => c.type === NodeType.IDENTIFIER)
+                ast.imports.push({
+                    name: alias?.text ?? "*",
+                    from,
+                    line,
+                    type: importType,
+                    isDefault: false,
+                })
+            } else if (child.type === NodeType.NAMED_IMPORTS) {
+                for (const specifier of child.children) {
+                    if (specifier.type === NodeType.IMPORT_SPECIFIER) {
+                        const nameNode = specifier.childForFieldName(FieldName.NAME)
+                        const aliasNode = specifier.childForFieldName(FieldName.ALIAS)
+                        ast.imports.push({
+                            name: aliasNode?.text ?? nameNode?.text ?? "",
+                            from,
+                            line,
+                            type: importType,
+                            isDefault: false,
+                        })
+                    }
+                }
+            }
+        }
+    }
+
+    private extractExport(node: SyntaxNode, ast: FileAST): void {
+        const isDefault = node.children.some((c) => c.type === NodeType.DEFAULT)
+        const declaration = node.childForFieldName(FieldName.DECLARATION)
+
+        if (declaration) {
+            switch (declaration.type) {
+                case NodeType.FUNCTION_DECLARATION:
+                    this.extractFunction(declaration, ast, true)
+                    this.addExportInfo(ast, declaration, "function", isDefault)
+                    break
+                case NodeType.CLASS_DECLARATION:
+                    this.extractClass(declaration, ast, true)
+                    this.addExportInfo(ast, declaration, "class", isDefault)
+                    break
+                case NodeType.INTERFACE_DECLARATION:
+                    this.extractInterface(declaration, ast, true)
+                    this.addExportInfo(ast, declaration, "interface", isDefault)
+                    break
+                case NodeType.TYPE_ALIAS_DECLARATION:
+                    this.extractTypeAlias(declaration, ast, true)
+                    this.addExportInfo(ast, declaration, "type", isDefault)
+                    break
+                case NodeType.LEXICAL_DECLARATION:
+                    this.extractLexicalDeclaration(declaration, ast, true)
+                    break
+            }
+        }
+
+        const exportClause = node.children.find((c) => c.type === NodeType.EXPORT_CLAUSE)
+        if (exportClause) {
+            for (const specifier of exportClause.children) {
+                if (specifier.type === NodeType.EXPORT_SPECIFIER) {
+                    const nameNode = specifier.childForFieldName(FieldName.NAME)
+                    if (nameNode) {
+                        ast.exports.push({
+                            name: nameNode.text,
+                            line: node.startPosition.row + 1,
+                            isDefault: false,
+                            kind: "variable",
+                        })
+                    }
+                }
+            }
+        }
+    }
+
+    private extractFunction(node: SyntaxNode, ast: FileAST, isExported: boolean): void {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        if (!nameNode) {
+            return
+        }
+
+        const params = this.extractParameters(node)
+        const isAsync = node.children.some((c) => c.type === NodeType.ASYNC)
+        const returnTypeNode = node.childForFieldName(FieldName.RETURN_TYPE)
+
+        ast.functions.push({
+            name: nameNode.text,
+            lineStart: node.startPosition.row + 1,
+            lineEnd: node.endPosition.row + 1,
+            params,
+            isAsync,
+            isExported,
+            returnType: returnTypeNode?.text?.replace(/^:\s*/, ""),
+        })
+    }
+
+    private extractLexicalDeclaration(node: SyntaxNode, ast: FileAST, isExported = false): void {
+        for (const child of node.children) {
+            if (child.type === NodeType.VARIABLE_DECLARATOR) {
+                const nameNode = child.childForFieldName(FieldName.NAME)
+                const valueNode = child.childForFieldName(FieldName.VALUE)
+
+                if (
+                    valueNode?.type === NodeType.ARROW_FUNCTION ||
+                    valueNode?.type === NodeType.FUNCTION
+                ) {
+                    const params = this.extractParameters(valueNode)
+                    const isAsync = valueNode.children.some((c) => c.type === NodeType.ASYNC)
+
+                    ast.functions.push({
+                        name: nameNode?.text ?? "",
+                        lineStart: node.startPosition.row + 1,
+                        lineEnd: node.endPosition.row + 1,
+                        params,
+                        isAsync,
+                        isExported,
+                    })
+
+                    if (isExported) {
+                        ast.exports.push({
+                            name: nameNode?.text ?? "",
+                            line: node.startPosition.row + 1,
+                            isDefault: false,
+                            kind: "function",
+                        })
+                    }
+                } else if (isExported && nameNode) {
+                    ast.exports.push({
+                        name: nameNode.text,
+                        line: node.startPosition.row + 1,
+                        isDefault: false,
+                        kind: "variable",
+                    })
+                }
+            }
+        }
+    }
+
+    private extractClass(node: SyntaxNode, ast: FileAST, isExported: boolean): void {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        if (!nameNode) {
+            return
+        }
+
+        const body = node.childForFieldName(FieldName.BODY)
+        const methods: MethodInfo[] = []
+        const properties: PropertyInfo[] = []
+
+        if (body) {
+            for (const member of body.children) {
+                if (member.type === NodeType.METHOD_DEFINITION) {
+                    methods.push(this.extractMethod(member))
+                } else if (
+                    member.type === NodeType.PUBLIC_FIELD_DEFINITION ||
+                    member.type === NodeType.FIELD_DEFINITION
+                ) {
+                    properties.push(this.extractProperty(member))
+                }
+            }
+        }
+
+        const { extendsName, implementsList } = this.extractClassHeritage(node)
+        const isAbstract = node.children.some((c) => c.type === NodeType.ABSTRACT)
+
+        ast.classes.push({
+            name: nameNode.text,
+            lineStart: node.startPosition.row + 1,
+            lineEnd: node.endPosition.row + 1,
+            methods,
+            properties,
+            extends: extendsName,
+            implements: implementsList,
+            isExported,
+            isAbstract,
+        })
+    }
+
+    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)
+        const isAsync = node.children.some((c) => c.type === NodeType.ASYNC)
+        const isStatic = node.children.some((c) => c.type === NodeType.STATIC)
+
+        let visibility: "public" | "private" | "protected" = "public"
+        for (const child of node.children) {
+            if (child.type === NodeType.ACCESSIBILITY_MODIFIER) {
+                visibility = child.text as "public" | "private" | "protected"
+                break
+            }
+        }
+
+        return {
+            name: nameNode?.text ?? "",
+            lineStart: node.startPosition.row + 1,
+            lineEnd: node.endPosition.row + 1,
+            params,
+            isAsync,
+            visibility,
+            isStatic,
+        }
+    }
+
+    private extractProperty(node: SyntaxNode): PropertyInfo {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        const typeNode = node.childForFieldName(FieldName.TYPE)
+        const isStatic = node.children.some((c) => c.type === NodeType.STATIC)
+        const isReadonly = node.children.some((c) => c.text === NodeType.READONLY)
+
+        let visibility: "public" | "private" | "protected" = "public"
+        for (const child of node.children) {
+            if (child.type === NodeType.ACCESSIBILITY_MODIFIER) {
+                visibility = child.text as "public" | "private" | "protected"
+                break
+            }
+        }
+
+        return {
+            name: nameNode?.text ?? "",
+            line: node.startPosition.row + 1,
+            type: typeNode?.text,
+            visibility,
+            isStatic,
+            isReadonly,
+        }
+    }
+
+    private extractInterface(node: SyntaxNode, ast: FileAST, isExported: boolean): void {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        if (!nameNode) {
+            return
+        }
+
+        const body = node.childForFieldName(FieldName.BODY)
+        const properties: PropertyInfo[] = []
+
+        if (body) {
+            for (const member of body.children) {
+                if (member.type === NodeType.PROPERTY_SIGNATURE) {
+                    const propName = member.childForFieldName(FieldName.NAME)
+                    const propType = member.childForFieldName(FieldName.TYPE)
+                    properties.push({
+                        name: propName?.text ?? "",
+                        line: member.startPosition.row + 1,
+                        type: propType?.text,
+                        visibility: "public",
+                        isStatic: false,
+                        isReadonly: member.children.some((c) => c.text === NodeType.READONLY),
+                    })
+                }
+            }
+        }
+
+        const extendsList: string[] = []
+        const extendsClause = node.children.find((c) => c.type === NodeType.EXTENDS_TYPE_CLAUSE)
+        if (extendsClause) {
+            for (const child of extendsClause.children) {
+                if (child.type === NodeType.TYPE_IDENTIFIER) {
+                    extendsList.push(child.text)
+                }
+            }
+        }
+
+        ast.interfaces.push({
+            name: nameNode.text,
+            lineStart: node.startPosition.row + 1,
+            lineEnd: node.endPosition.row + 1,
+            properties,
+            extends: extendsList,
+            isExported,
+        })
+    }
+
+    private extractTypeAlias(node: SyntaxNode, ast: FileAST, isExported: boolean): void {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        if (!nameNode) {
+            return
+        }
+
+        ast.typeAliases.push({
+            name: nameNode.text,
+            line: node.startPosition.row + 1,
+            isExported,
+        })
+    }
+
+    private extractParameters(node: SyntaxNode): ParameterInfo[] {
+        const params: ParameterInfo[] = []
+        const paramsNode = node.childForFieldName(FieldName.PARAMETERS)
+
+        if (paramsNode) {
+            for (const param of paramsNode.children) {
+                if (
+                    param.type === NodeType.REQUIRED_PARAMETER ||
+                    param.type === NodeType.OPTIONAL_PARAMETER ||
+                    param.type === NodeType.IDENTIFIER
+                ) {
+                    const nameNode =
+                        param.type === NodeType.IDENTIFIER
+                            ? param
+                            : param.childForFieldName(FieldName.PATTERN)
+                    const typeNode = param.childForFieldName(FieldName.TYPE)
+                    const defaultValue = param.childForFieldName(FieldName.VALUE)
+
+                    params.push({
+                        name: nameNode?.text ?? "",
+                        type: typeNode?.text,
+                        optional: param.type === NodeType.OPTIONAL_PARAMETER,
+                        hasDefault: defaultValue !== null,
+                    })
+                }
+            }
+        }
+
+        return params
+    }
+
+    private addExportInfo(
+        ast: FileAST,
+        node: SyntaxNode,
+        kind: ExportInfo["kind"],
+        isDefault: boolean,
+    ): void {
+        const nameNode = node.childForFieldName(FieldName.NAME)
+        if (nameNode) {
+            ast.exports.push({
+                name: nameNode.text,
+                line: node.startPosition.row + 1,
+                isDefault,
+                kind,
+            })
+        }
+    }
+
+    private classifyImport(from: string): ImportInfo["type"] {
+        if (from.startsWith(".") || from.startsWith("/")) {
+            return "internal"
+        }
+        if (from.startsWith("node:") || builtinModules.includes(from)) {
+            return "builtin"
+        }
+        return "external"
+    }
+
+    private getStringValue(node: SyntaxNode): string {
+        const text = node.text
+        if (
+            (text.startsWith('"') && text.endsWith('"')) ||
+            (text.startsWith("'") && text.endsWith("'"))
+        ) {
+            return text.slice(1, -1)
+        }
+        return text
+    }
+}
--- a/packages/ipuaro/src/infrastructure/indexer/FileScanner.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/FileScanner.ts
@@ -0,0 +1,189 @@
+import * as fs from "node:fs/promises"
+import type { Stats } from "node:fs"
+import * as path from "node:path"
+import { globby } from "globby"
+import {
+    BINARY_EXTENSIONS,
+    DEFAULT_IGNORE_PATTERNS,
+    SUPPORTED_EXTENSIONS,
+} from "../../domain/constants/index.js"
+import type { ScanResult } from "../../domain/services/IIndexer.js"
+
+/**
+ * Progress callback for file scanning.
+ */
+export interface ScanProgress {
+    current: number
+    total: number
+    currentFile: string
+}
+
+/**
+ * Options for FileScanner.
+ */
+export interface FileScannerOptions {
+    /** Additional ignore patterns (besides .gitignore and defaults) */
+    additionalIgnore?: string[]
+    /** Only include files with these extensions. Defaults to SUPPORTED_EXTENSIONS. */
+    extensions?: readonly string[]
+    /** Callback for progress updates */
+    onProgress?: (progress: ScanProgress) => void
+}
+
+/**
+ * Scans project directories recursively using globby.
+ * Respects .gitignore, skips binary files and default ignore patterns.
+ */
+export class FileScanner {
+    private readonly extensions: Set<string>
+    private readonly additionalIgnore: string[]
+    private readonly onProgress?: (progress: ScanProgress) => void
+
+    constructor(options: FileScannerOptions = {}) {
+        this.extensions = new Set(options.extensions ?? SUPPORTED_EXTENSIONS)
+        this.additionalIgnore = options.additionalIgnore ?? []
+        this.onProgress = options.onProgress
+    }
+
+    /**
+     * Build glob patterns from extensions.
+     */
+    private buildGlobPatterns(): string[] {
+        const exts = [...this.extensions].map((ext) => ext.replace(".", ""))
+        if (exts.length === 1) {
+            return [`**/*.${exts[0]}`]
+        }
+        return [`**/*.{${exts.join(",")}}`]
+    }
+
+    /**
+     * Build ignore patterns.
+     */
+    private buildIgnorePatterns(): string[] {
+        const patterns = [
+            ...DEFAULT_IGNORE_PATTERNS,
+            ...this.additionalIgnore,
+            ...BINARY_EXTENSIONS.map((ext) => `**/*${ext}`),
+        ]
+        return patterns
+    }
+
+    /**
+     * Scan directory and yield file results.
+     * @param root - Root directory to scan
+     */
+    async *scan(root: string): AsyncGenerator<ScanResult> {
+        const globPatterns = this.buildGlobPatterns()
+        const ignorePatterns = this.buildIgnorePatterns()
+
+        const files = await globby(globPatterns, {
+            cwd: root,
+            gitignore: true,
+            ignore: ignorePatterns,
+            absolute: false,
+            onlyFiles: true,
+            followSymbolicLinks: false,
+        })
+
+        const total = files.length
+        let current = 0
+
+        for (const relativePath of files) {
+            current++
+            this.reportProgress(relativePath, current, total)
+
+            const fullPath = path.join(root, relativePath)
+            const stats = await this.safeStats(fullPath)
+
+            if (stats) {
+                yield {
+                    path: relativePath,
+                    type: "file",
+                    size: stats.size,
+                    lastModified: stats.mtimeMs,
+                }
+            }
+        }
+    }
+
+    /**
+     * Scan and return all results as array.
+     */
+    async scanAll(root: string): Promise<ScanResult[]> {
+        const results: ScanResult[] = []
+        for await (const result of this.scan(root)) {
+            results.push(result)
+        }
+        return results
+    }
+
+    /**
+     * Check if file has supported extension.
+     */
+    isSupportedExtension(filePath: string): boolean {
+        const ext = path.extname(filePath).toLowerCase()
+        return this.extensions.has(ext)
+    }
+
+    /**
+     * Safely get file stats without throwing.
+     */
+    private async safeStats(filePath: string): Promise<Stats | null> {
+        try {
+            return await fs.stat(filePath)
+        } catch {
+            return null
+        }
+    }
+
+    /**
+     * Report progress if callback is set.
+     */
+    private reportProgress(currentFile: string, current: number, total: number): void {
+        if (this.onProgress) {
+            this.onProgress({ current, total, currentFile })
+        }
+    }
+
+    /**
+     * Check if file content is likely UTF-8 text.
+     * Reads first 8KB and checks for null bytes.
+     */
+    static async isTextFile(filePath: string): Promise<boolean> {
+        try {
+            const handle = await fs.open(filePath, "r")
+            try {
+                const buffer = Buffer.alloc(8192)
+                const { bytesRead } = await handle.read(buffer, 0, 8192, 0)
+                if (bytesRead === 0) {
+                    return true
+                }
+                for (let i = 0; i < bytesRead; i++) {
+                    if (buffer[i] === 0) {
+                        return false
+                    }
+                }
+                return true
+            } finally {
+                await handle.close()
+            }
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Read file content as string.
+     * Returns null if file is binary or unreadable.
+     */
+    static async readFileContent(filePath: string): Promise<string | null> {
+        if (!(await FileScanner.isTextFile(filePath))) {
+            return null
+        }
+        try {
+            return await fs.readFile(filePath, "utf-8")
+        } catch {
+            return null
+        }
+    }
+}
--- a/packages/ipuaro/src/infrastructure/indexer/IndexBuilder.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/IndexBuilder.ts
@@ -0,0 +1,406 @@
+import * as path from "node:path"
+import type { FileAST } from "../../domain/value-objects/FileAST.js"
+import type { DepsGraph, SymbolIndex, SymbolLocation } from "../../domain/services/IStorage.js"
+
+/**
+ * Builds searchable indexes from parsed ASTs.
+ */
+export class IndexBuilder {
+    private readonly projectRoot: string
+
+    constructor(projectRoot: string) {
+        this.projectRoot = projectRoot
+    }
+
+    /**
+     * Build symbol index from all ASTs.
+     * Maps symbol names to their locations for quick lookup.
+     */
+    buildSymbolIndex(asts: Map<string, FileAST>): SymbolIndex {
+        const index: SymbolIndex = new Map()
+
+        for (const [filePath, ast] of asts) {
+            this.indexFunctions(filePath, ast, index)
+            this.indexClasses(filePath, ast, index)
+            this.indexInterfaces(filePath, ast, index)
+            this.indexTypeAliases(filePath, ast, index)
+            this.indexExportedVariables(filePath, ast, index)
+        }
+
+        return index
+    }
+
+    /**
+     * Index function declarations.
+     */
+    private indexFunctions(filePath: string, ast: FileAST, index: SymbolIndex): void {
+        for (const func of ast.functions) {
+            this.addSymbol(index, func.name, {
+                path: filePath,
+                line: func.lineStart,
+                type: "function",
+            })
+        }
+    }
+
+    /**
+     * Index class declarations.
+     */
+    private indexClasses(filePath: string, ast: FileAST, index: SymbolIndex): void {
+        for (const cls of ast.classes) {
+            this.addSymbol(index, cls.name, {
+                path: filePath,
+                line: cls.lineStart,
+                type: "class",
+            })
+
+            for (const method of cls.methods) {
+                const qualifiedName = `${cls.name}.${method.name}`
+                this.addSymbol(index, qualifiedName, {
+                    path: filePath,
+                    line: method.lineStart,
+                    type: "function",
+                })
+            }
+        }
+    }
+
+    /**
+     * Index interface declarations.
+     */
+    private indexInterfaces(filePath: string, ast: FileAST, index: SymbolIndex): void {
+        for (const iface of ast.interfaces) {
+            this.addSymbol(index, iface.name, {
+                path: filePath,
+                line: iface.lineStart,
+                type: "interface",
+            })
+        }
+    }
+
+    /**
+     * Index type alias declarations.
+     */
+    private indexTypeAliases(filePath: string, ast: FileAST, index: SymbolIndex): void {
+        for (const typeAlias of ast.typeAliases) {
+            this.addSymbol(index, typeAlias.name, {
+                path: filePath,
+                line: typeAlias.line,
+                type: "type",
+            })
+        }
+    }
+
+    /**
+     * Index exported variables (not functions).
+     */
+    private indexExportedVariables(filePath: string, ast: FileAST, index: SymbolIndex): void {
+        const functionNames = new Set(ast.functions.map((f) => f.name))
+
+        for (const exp of ast.exports) {
+            if (exp.kind === "variable" && !functionNames.has(exp.name)) {
+                this.addSymbol(index, exp.name, {
+                    path: filePath,
+                    line: exp.line,
+                    type: "variable",
+                })
+            }
+        }
+    }
+
+    /**
+     * Add a symbol to the index.
+     */
+    private addSymbol(index: SymbolIndex, name: string, location: SymbolLocation): void {
+        if (!name) {
+            return
+        }
+
+        const existing = index.get(name)
+        if (existing) {
+            const isDuplicate = existing.some(
+                (loc) => loc.path === location.path && loc.line === location.line,
+            )
+            if (!isDuplicate) {
+                existing.push(location)
+            }
+        } else {
+            index.set(name, [location])
+        }
+    }
+
+    /**
+     * Build dependency graph from all ASTs.
+     * Creates bidirectional mapping of imports.
+     */
+    buildDepsGraph(asts: Map<string, FileAST>): DepsGraph {
+        const imports = new Map<string, string[]>()
+        const importedBy = new Map<string, string[]>()
+
+        for (const filePath of asts.keys()) {
+            imports.set(filePath, [])
+            importedBy.set(filePath, [])
+        }
+
+        for (const [filePath, ast] of asts) {
+            const fileImports = this.resolveFileImports(filePath, ast, asts)
+            imports.set(filePath, fileImports)
+
+            for (const importedFile of fileImports) {
+                const dependents = importedBy.get(importedFile) ?? []
+                if (!dependents.includes(filePath)) {
+                    dependents.push(filePath)
+                    importedBy.set(importedFile, dependents)
+                }
+            }
+        }
+
+        for (const [filePath, deps] of imports) {
+            imports.set(filePath, deps.sort())
+        }
+        for (const [filePath, deps] of importedBy) {
+            importedBy.set(filePath, deps.sort())
+        }
+
+        return { imports, importedBy }
+    }
+
+    /**
+     * Resolve internal imports for a file.
+     */
+    private resolveFileImports(
+        filePath: string,
+        ast: FileAST,
+        allASTs: Map<string, FileAST>,
+    ): string[] {
+        const fileDir = path.dirname(filePath)
+        const resolvedImports: string[] = []
+
+        for (const imp of ast.imports) {
+            if (imp.type !== "internal") {
+                continue
+            }
+
+            const resolved = this.resolveImportPath(fileDir, imp.from, allASTs)
+            if (resolved && !resolvedImports.includes(resolved)) {
+                resolvedImports.push(resolved)
+            }
+        }
+
+        return resolvedImports
+    }
+
+    /**
+     * Resolve import path to actual file path.
+     */
+    private resolveImportPath(
+        fromDir: string,
+        importPath: string,
+        allASTs: Map<string, FileAST>,
+    ): string | null {
+        const absolutePath = path.resolve(fromDir, importPath)
+
+        const candidates = this.getImportCandidates(absolutePath)
+        for (const candidate of candidates) {
+            if (allASTs.has(candidate)) {
+                return candidate
+            }
+        }
+
+        return null
+    }
+
+    /**
+     * Generate possible file paths for an import.
+     */
+    private getImportCandidates(basePath: string): string[] {
+        const candidates: string[] = []
+
+        if (/\.(ts|tsx|js|jsx)$/.test(basePath)) {
+            candidates.push(basePath)
+
+            if (basePath.endsWith(".js")) {
+                candidates.push(`${basePath.slice(0, -3)}.ts`)
+            } else if (basePath.endsWith(".jsx")) {
+                candidates.push(`${basePath.slice(0, -4)}.tsx`)
+            }
+        } else {
+            candidates.push(`${basePath}.ts`)
+            candidates.push(`${basePath}.tsx`)
+            candidates.push(`${basePath}.js`)
+            candidates.push(`${basePath}.jsx`)
+            candidates.push(`${basePath}/index.ts`)
+            candidates.push(`${basePath}/index.tsx`)
+            candidates.push(`${basePath}/index.js`)
+            candidates.push(`${basePath}/index.jsx`)
+        }
+
+        return candidates
+    }
+
+    /**
+     * Find all locations of a symbol by name.
+     */
+    findSymbol(index: SymbolIndex, name: string): SymbolLocation[] {
+        return index.get(name) ?? []
+    }
+
+    /**
+     * Find symbols matching a pattern.
+     */
+    searchSymbols(index: SymbolIndex, pattern: string): Map<string, SymbolLocation[]> {
+        const results = new Map<string, SymbolLocation[]>()
+        const regex = new RegExp(pattern, "i")
+
+        for (const [name, locations] of index) {
+            if (regex.test(name)) {
+                results.set(name, locations)
+            }
+        }
+
+        return results
+    }
+
+    /**
+     * Get all files that the given file depends on (imports).
+     */
+    getDependencies(graph: DepsGraph, filePath: string): string[] {
+        return graph.imports.get(filePath) ?? []
+    }
+
+    /**
+     * Get all files that depend on the given file (import it).
+     */
+    getDependents(graph: DepsGraph, filePath: string): string[] {
+        return graph.importedBy.get(filePath) ?? []
+    }
+
+    /**
+     * Find circular dependencies in the graph.
+     */
+    findCircularDependencies(graph: DepsGraph): string[][] {
+        const cycles: string[][] = []
+        const visited = new Set<string>()
+        const recursionStack = new Set<string>()
+
+        const dfs = (node: string, path: string[]): void => {
+            visited.add(node)
+            recursionStack.add(node)
+            path.push(node)
+
+            const deps = graph.imports.get(node) ?? []
+            for (const dep of deps) {
+                if (!visited.has(dep)) {
+                    dfs(dep, [...path])
+                } else if (recursionStack.has(dep)) {
+                    const cycleStart = path.indexOf(dep)
+                    if (cycleStart !== -1) {
+                        const cycle = [...path.slice(cycleStart), dep]
+                        const normalized = this.normalizeCycle(cycle)
+                        if (!this.cycleExists(cycles, normalized)) {
+                            cycles.push(normalized)
+                        }
+                    }
+                }
+            }
+
+            recursionStack.delete(node)
+        }
+
+        for (const node of graph.imports.keys()) {
+            if (!visited.has(node)) {
+                dfs(node, [])
+            }
+        }
+
+        return cycles
+    }
+
+    /**
+     * Normalize a cycle to start with the smallest path.
+     */
+    private normalizeCycle(cycle: string[]): string[] {
+        if (cycle.length <= 1) {
+            return cycle
+        }
+
+        const withoutLast = cycle.slice(0, -1)
+        const minIndex = withoutLast.reduce(
+            (minIdx, path, idx) => (path < withoutLast[minIdx] ? idx : minIdx),
+            0,
+        )
+
+        const rotated = [...withoutLast.slice(minIndex), ...withoutLast.slice(0, minIndex)]
+        rotated.push(rotated[0])
+
+        return rotated
+    }
+
+    /**
+     * Check if a cycle already exists in the list.
+     */
+    private cycleExists(cycles: string[][], newCycle: string[]): boolean {
+        const newKey = newCycle.join("→")
+        return cycles.some((cycle) => cycle.join("→") === newKey)
+    }
+
+    /**
+     * Get statistics about the indexes.
+     */
+    getStats(
+        symbolIndex: SymbolIndex,
+        depsGraph: DepsGraph,
+    ): {
+        totalSymbols: number
+        symbolsByType: Record<SymbolLocation["type"], number>
+        totalFiles: number
+        totalDependencies: number
+        averageDependencies: number
+        hubs: string[]
+        orphans: string[]
+    } {
+        const symbolsByType: Record<SymbolLocation["type"], number> = {
+            function: 0,
+            class: 0,
+            interface: 0,
+            type: 0,
+            variable: 0,
+        }
+
+        let totalSymbols = 0
+        for (const locations of symbolIndex.values()) {
+            totalSymbols += locations.length
+            for (const loc of locations) {
+                symbolsByType[loc.type]++
+            }
+        }
+
+        const totalFiles = depsGraph.imports.size
+        let totalDependencies = 0
+        const hubs: string[] = []
+        const orphans: string[] = []
+
+        for (const [_filePath, deps] of depsGraph.imports) {
+            totalDependencies += deps.length
+        }
+
+        for (const [filePath, dependents] of depsGraph.importedBy) {
+            if (dependents.length > 5) {
+                hubs.push(filePath)
+            }
+            if (dependents.length === 0 && (depsGraph.imports.get(filePath)?.length ?? 0) === 0) {
+                orphans.push(filePath)
+            }
+        }
+
+        return {
+            totalSymbols,
+            symbolsByType,
+            totalFiles,
+            totalDependencies,
+            averageDependencies: totalFiles > 0 ? totalDependencies / totalFiles : 0,
+            hubs: hubs.sort(),
+            orphans: orphans.sort(),
+        }
+    }
+}
--- a/packages/ipuaro/src/infrastructure/indexer/MetaAnalyzer.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/MetaAnalyzer.ts
@@ -0,0 +1,448 @@
+import * as path from "node:path"
+import {
+    type ComplexityMetrics,
+    createFileMeta,
+    type FileMeta,
+    isHubFile,
+} from "../../domain/value-objects/FileMeta.js"
+import type { ClassInfo, FileAST, FunctionInfo } from "../../domain/value-objects/FileAST.js"
+
+/**
+ * Analyzes file metadata including complexity, dependencies, and classification.
+ */
+export class MetaAnalyzer {
+    private readonly projectRoot: string
+
+    constructor(projectRoot: string) {
+        this.projectRoot = projectRoot
+    }
+
+    /**
+     * Analyze a file and compute its metadata.
+     * @param filePath - Absolute path to the file
+     * @param ast - Parsed AST for the file
+     * @param content - Raw file content (for LOC calculation)
+     * @param allASTs - Map of all file paths to their ASTs (for dependents)
+     */
+    analyze(
+        filePath: string,
+        ast: FileAST,
+        content: string,
+        allASTs: Map<string, FileAST>,
+    ): FileMeta {
+        const complexity = this.calculateComplexity(ast, content)
+        const dependencies = this.resolveDependencies(filePath, ast)
+        const dependents = this.findDependents(filePath, allASTs)
+        const fileType = this.classifyFileType(filePath)
+        const isEntryPoint = this.isEntryPointFile(filePath, dependents.length)
+
+        return createFileMeta({
+            complexity,
+            dependencies,
+            dependents,
+            isHub: isHubFile(dependents.length),
+            isEntryPoint,
+            fileType,
+        })
+    }
+
+    /**
+     * Calculate complexity metrics for a file.
+     */
+    calculateComplexity(ast: FileAST, content: string): ComplexityMetrics {
+        const loc = this.countLinesOfCode(content)
+        const nesting = this.calculateMaxNesting(ast)
+        const cyclomaticComplexity = this.calculateCyclomaticComplexity(ast)
+        const score = this.calculateComplexityScore(loc, nesting, cyclomaticComplexity)
+
+        return {
+            loc,
+            nesting,
+            cyclomaticComplexity,
+            score,
+        }
+    }
+
+    /**
+     * Count lines of code (excluding empty lines and comments).
+     */
+    countLinesOfCode(content: string): number {
+        const lines = content.split("\n")
+        let loc = 0
+        let inBlockComment = false
+
+        for (const line of lines) {
+            const trimmed = line.trim()
+
+            if (inBlockComment) {
+                if (trimmed.includes("*/")) {
+                    inBlockComment = false
+                }
+                continue
+            }
+
+            if (trimmed.startsWith("/*")) {
+                if (!trimmed.includes("*/")) {
+                    inBlockComment = true
+                    continue
+                }
+                const afterComment = trimmed.substring(trimmed.indexOf("*/") + 2).trim()
+                if (afterComment === "" || afterComment.startsWith("//")) {
+                    continue
+                }
+                loc++
+                continue
+            }
+
+            if (trimmed === "" || trimmed.startsWith("//")) {
+                continue
+            }
+
+            loc++
+        }
+
+        return loc
+    }
+
+    /**
+     * Calculate maximum nesting depth from AST.
+     */
+    calculateMaxNesting(ast: FileAST): number {
+        let maxNesting = 0
+
+        for (const func of ast.functions) {
+            const depth = this.estimateFunctionNesting(func)
+            maxNesting = Math.max(maxNesting, depth)
+        }
+
+        for (const cls of ast.classes) {
+            const depth = this.estimateClassNesting(cls)
+            maxNesting = Math.max(maxNesting, depth)
+        }
+
+        return maxNesting
+    }
+
+    /**
+     * Estimate nesting depth for a function based on line count.
+     * More accurate nesting would require full AST traversal.
+     */
+    private estimateFunctionNesting(func: FunctionInfo): number {
+        const lines = func.lineEnd - func.lineStart + 1
+        if (lines <= 5) {
+            return 1
+        }
+        if (lines <= 15) {
+            return 2
+        }
+        if (lines <= 30) {
+            return 3
+        }
+        if (lines <= 50) {
+            return 4
+        }
+        return 5
+    }
+
+    /**
+     * Estimate nesting depth for a class.
+     */
+    private estimateClassNesting(cls: ClassInfo): number {
+        let maxMethodNesting = 1
+
+        for (const method of cls.methods) {
+            const lines = method.lineEnd - method.lineStart + 1
+            let depth = 1
+            if (lines > 5) {
+                depth = 2
+            }
+            if (lines > 15) {
+                depth = 3
+            }
+            if (lines > 30) {
+                depth = 4
+            }
+            maxMethodNesting = Math.max(maxMethodNesting, depth)
+        }
+
+        return maxMethodNesting + 1
+    }
+
+    /**
+     * Calculate cyclomatic complexity from AST.
+     * Base complexity is 1, +1 for each decision point.
+     */
+    calculateCyclomaticComplexity(ast: FileAST): number {
+        let complexity = 1
+
+        for (const func of ast.functions) {
+            complexity += this.estimateFunctionComplexity(func)
+        }
+
+        for (const cls of ast.classes) {
+            for (const method of cls.methods) {
+                const lines = method.lineEnd - method.lineStart + 1
+                complexity += Math.max(1, Math.floor(lines / 10))
+            }
+        }
+
+        return complexity
+    }
+
+    /**
+     * Estimate function complexity based on size.
+     */
+    private estimateFunctionComplexity(func: FunctionInfo): number {
+        const lines = func.lineEnd - func.lineStart + 1
+        return Math.max(1, Math.floor(lines / 8))
+    }
+
+    /**
+     * Calculate overall complexity score (0-100).
+     */
+    calculateComplexityScore(loc: number, nesting: number, cyclomatic: number): number {
+        const locWeight = 0.3
+        const nestingWeight = 0.35
+        const cyclomaticWeight = 0.35
+
+        const locScore = Math.min(100, (loc / 500) * 100)
+        const nestingScore = Math.min(100, (nesting / 6) * 100)
+        const cyclomaticScore = Math.min(100, (cyclomatic / 30) * 100)
+
+        const score =
+            locScore * locWeight + nestingScore * nestingWeight + cyclomaticScore * cyclomaticWeight
+
+        return Math.round(Math.min(100, score))
+    }
+
+    /**
+     * Resolve internal imports to absolute file paths.
+     */
+    resolveDependencies(filePath: string, ast: FileAST): string[] {
+        const dependencies: string[] = []
+        const fileDir = path.dirname(filePath)
+
+        for (const imp of ast.imports) {
+            if (imp.type !== "internal") {
+                continue
+            }
+
+            const resolved = this.resolveImportPath(fileDir, imp.from)
+            if (resolved && !dependencies.includes(resolved)) {
+                dependencies.push(resolved)
+            }
+        }
+
+        return dependencies.sort()
+    }
+
+    /**
+     * Resolve a relative import path to an absolute path.
+     */
+    private resolveImportPath(fromDir: string, importPath: string): string | null {
+        const absolutePath = path.resolve(fromDir, importPath)
+        const normalized = this.normalizeImportPath(absolutePath)
+
+        if (normalized.startsWith(this.projectRoot)) {
+            return normalized
+        }
+
+        return null
+    }
+
+    /**
+     * Normalize import path by removing file extension if present
+     * and handling index imports.
+     */
+    private normalizeImportPath(importPath: string): string {
+        let normalized = importPath
+
+        if (normalized.endsWith(".js")) {
+            normalized = `${normalized.slice(0, -3)}.ts`
+        } else if (normalized.endsWith(".jsx")) {
+            normalized = `${normalized.slice(0, -4)}.tsx`
+        } else if (!/\.(ts|tsx|js|jsx)$/.exec(normalized)) {
+            normalized = `${normalized}.ts`
+        }
+
+        return normalized
+    }
+
+    /**
+     * Find all files that import the given file.
+     */
+    findDependents(filePath: string, allASTs: Map<string, FileAST>): string[] {
+        const dependents: string[] = []
+        const normalizedPath = this.normalizePathForComparison(filePath)
+
+        for (const [otherPath, ast] of allASTs) {
+            if (otherPath === filePath) {
+                continue
+            }
+
+            if (this.fileImportsTarget(otherPath, ast, normalizedPath)) {
+                dependents.push(otherPath)
+            }
+        }
+
+        return dependents.sort()
+    }
+
+    /**
+     * Check if a file imports the target path.
+     */
+    private fileImportsTarget(filePath: string, ast: FileAST, normalizedTarget: string): boolean {
+        const fileDir = path.dirname(filePath)
+
+        for (const imp of ast.imports) {
+            if (imp.type !== "internal") {
+                continue
+            }
+
+            const resolvedImport = this.resolveImportPath(fileDir, imp.from)
+            if (!resolvedImport) {
+                continue
+            }
+
+            const normalizedImport = this.normalizePathForComparison(resolvedImport)
+            if (this.pathsMatch(normalizedTarget, normalizedImport)) {
+                return true
+            }
+        }
+
+        return false
+    }
+
+    /**
+     * Normalize path for comparison (handle index.ts and extensions).
+     */
+    private normalizePathForComparison(filePath: string): string {
+        let normalized = filePath
+
+        if (normalized.endsWith(".js")) {
+            normalized = normalized.slice(0, -3)
+        } else if (normalized.endsWith(".ts")) {
+            normalized = normalized.slice(0, -3)
+        } else if (normalized.endsWith(".jsx")) {
+            normalized = normalized.slice(0, -4)
+        } else if (normalized.endsWith(".tsx")) {
+            normalized = normalized.slice(0, -4)
+        }
+
+        return normalized
+    }
+
+    /**
+     * Check if two normalized paths match (including index.ts resolution).
+     */
+    private pathsMatch(path1: string, path2: string): boolean {
+        if (path1 === path2) {
+            return true
+        }
+
+        if (path1.endsWith("/index") && path2 === path1.slice(0, -6)) {
+            return true
+        }
+        if (path2.endsWith("/index") && path1 === path2.slice(0, -6)) {
+            return true
+        }
+
+        return false
+    }
+
+    /**
+     * Classify file type based on path and name.
+     */
+    classifyFileType(filePath: string): FileMeta["fileType"] {
+        const basename = path.basename(filePath)
+        const lowercasePath = filePath.toLowerCase()
+
+        if (basename.includes(".test.") || basename.includes(".spec.")) {
+            return "test"
+        }
+
+        if (lowercasePath.includes("/tests/") || lowercasePath.includes("/__tests__/")) {
+            return "test"
+        }
+
+        if (basename.endsWith(".d.ts")) {
+            return "types"
+        }
+
+        if (lowercasePath.includes("/types/") || basename === "types.ts") {
+            return "types"
+        }
+
+        const configPatterns = [
+            "config",
+            "tsconfig",
+            "eslint",
+            "prettier",
+            "vitest",
+            "jest",
+            "babel",
+            "webpack",
+            "vite",
+            "rollup",
+        ]
+
+        for (const pattern of configPatterns) {
+            if (basename.toLowerCase().includes(pattern)) {
+                return "config"
+            }
+        }
+
+        if (
+            filePath.endsWith(".ts") ||
+            filePath.endsWith(".tsx") ||
+            filePath.endsWith(".js") ||
+            filePath.endsWith(".jsx")
+        ) {
+            return "source"
+        }
+
+        return "unknown"
+    }
+
+    /**
+     * Determine if file is an entry point.
+     */
+    isEntryPointFile(filePath: string, dependentCount: number): boolean {
+        const basename = path.basename(filePath)
+
+        if (basename.startsWith("index.")) {
+            return true
+        }
+
+        if (dependentCount === 0) {
+            return true
+        }
+
+        const entryPatterns = ["main.", "app.", "cli.", "server.", "index."]
+        for (const pattern of entryPatterns) {
+            if (basename.toLowerCase().startsWith(pattern)) {
+                return true
+            }
+        }
+
+        return false
+    }
+
+    /**
+     * Batch analyze multiple files.
+     */
+    analyzeAll(files: Map<string, { ast: FileAST; content: string }>): Map<string, FileMeta> {
+        const allASTs = new Map<string, FileAST>()
+        for (const [filePath, { ast }] of files) {
+            allASTs.set(filePath, ast)
+        }
+
+        const results = new Map<string, FileMeta>()
+        for (const [filePath, { ast, content }] of files) {
+            const meta = this.analyze(filePath, ast, content, allASTs)
+            results.set(filePath, meta)
+        }
+
+        return results
+    }
+}
--- a/packages/ipuaro/src/infrastructure/indexer/Watchdog.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/Watchdog.ts
@@ -0,0 +1,285 @@
+import * as chokidar from "chokidar"
+import * as path from "node:path"
+import { DEFAULT_IGNORE_PATTERNS, SUPPORTED_EXTENSIONS } from "../../domain/constants/index.js"
+
+export type FileChangeType = "add" | "change" | "unlink"
+
+export interface FileChangeEvent {
+    type: FileChangeType
+    path: string
+    timestamp: number
+}
+
+export type FileChangeCallback = (event: FileChangeEvent) => void
+
+export interface WatchdogOptions {
+    /** Debounce delay in milliseconds (default: 500) */
+    debounceMs?: number
+    /** Patterns to ignore (default: DEFAULT_IGNORE_PATTERNS) */
+    ignorePatterns?: readonly string[]
+    /** File extensions to watch (default: SUPPORTED_EXTENSIONS) */
+    extensions?: readonly string[]
+    /** Use polling instead of native events (useful for network drives) */
+    usePolling?: boolean
+    /** Polling interval in milliseconds (default: 1000) */
+    pollInterval?: number
+}
+
+interface ResolvedWatchdogOptions {
+    debounceMs: number
+    ignorePatterns: readonly string[]
+    extensions: readonly string[]
+    usePolling: boolean
+    pollInterval: number
+}
+
+const DEFAULT_OPTIONS: ResolvedWatchdogOptions = {
+    debounceMs: 500,
+    ignorePatterns: DEFAULT_IGNORE_PATTERNS,
+    extensions: SUPPORTED_EXTENSIONS,
+    usePolling: false,
+    pollInterval: 1000,
+}
+
+/**
+ * Watches for file changes in a directory using chokidar.
+ */
+export class Watchdog {
+    private watcher: chokidar.FSWatcher | null = null
+    private readonly callbacks: FileChangeCallback[] = []
+    private readonly pendingChanges = new Map<string, FileChangeEvent>()
+    private readonly debounceTimers = new Map<string, NodeJS.Timeout>()
+    private readonly options: ResolvedWatchdogOptions
+    private root = ""
+    private isRunning = false
+
+    constructor(options: WatchdogOptions = {}) {
+        this.options = { ...DEFAULT_OPTIONS, ...options }
+    }
+
+    /**
+     * Start watching a directory for file changes.
+     */
+    start(root: string): void {
+        if (this.isRunning) {
+            void this.stop()
+        }
+
+        this.root = root
+        this.isRunning = true
+
+        const globPatterns = this.buildGlobPatterns(root)
+        const ignorePatterns = this.buildIgnorePatterns()
+
+        this.watcher = chokidar.watch(globPatterns, {
+            ignored: ignorePatterns,
+            persistent: true,
+            ignoreInitial: true,
+            usePolling: this.options.usePolling,
+            interval: this.options.pollInterval,
+            awaitWriteFinish: {
+                stabilityThreshold: 100,
+                pollInterval: 100,
+            },
+        })
+
+        this.watcher.on("add", (filePath) => {
+            this.handleChange("add", filePath)
+        })
+        this.watcher.on("change", (filePath) => {
+            this.handleChange("change", filePath)
+        })
+        this.watcher.on("unlink", (filePath) => {
+            this.handleChange("unlink", filePath)
+        })
+        this.watcher.on("error", (error) => {
+            this.handleError(error)
+        })
+    }
+
+    /**
+     * Stop watching for file changes.
+     */
+    async stop(): Promise<void> {
+        if (!this.isRunning) {
+            return
+        }
+
+        for (const timer of this.debounceTimers.values()) {
+            clearTimeout(timer)
+        }
+        this.debounceTimers.clear()
+        this.pendingChanges.clear()
+
+        if (this.watcher) {
+            await this.watcher.close()
+            this.watcher = null
+        }
+
+        this.isRunning = false
+    }
+
+    /**
+     * Register a callback for file change events.
+     */
+    onFileChange(callback: FileChangeCallback): void {
+        this.callbacks.push(callback)
+    }
+
+    /**
+     * Remove a callback.
+     */
+    offFileChange(callback: FileChangeCallback): void {
+        const index = this.callbacks.indexOf(callback)
+        if (index !== -1) {
+            this.callbacks.splice(index, 1)
+        }
+    }
+
+    /**
+     * Check if the watchdog is currently running.
+     */
+    isWatching(): boolean {
+        return this.isRunning
+    }
+
+    /**
+     * Get the root directory being watched.
+     */
+    getRoot(): string {
+        return this.root
+    }
+
+    /**
+     * Get the number of pending changes waiting to be processed.
+     */
+    getPendingCount(): number {
+        return this.pendingChanges.size
+    }
+
+    /**
+     * Handle a file change event with debouncing.
+     */
+    private handleChange(type: FileChangeType, filePath: string): void {
+        if (!this.isValidFile(filePath)) {
+            return
+        }
+
+        const normalizedPath = path.resolve(filePath)
+
+        const event: FileChangeEvent = {
+            type,
+            path: normalizedPath,
+            timestamp: Date.now(),
+        }
+
+        this.pendingChanges.set(normalizedPath, event)
+
+        const existingTimer = this.debounceTimers.get(normalizedPath)
+        if (existingTimer) {
+            clearTimeout(existingTimer)
+        }
+
+        const timer = setTimeout(() => {
+            this.flushChange(normalizedPath)
+        }, this.options.debounceMs)
+
+        this.debounceTimers.set(normalizedPath, timer)
+    }
+
+    /**
+     * Flush a pending change and notify callbacks.
+     */
+    private flushChange(filePath: string): void {
+        const event = this.pendingChanges.get(filePath)
+        if (!event) {
+            return
+        }
+
+        this.pendingChanges.delete(filePath)
+        this.debounceTimers.delete(filePath)
+
+        for (const callback of this.callbacks) {
+            try {
+                callback(event)
+            } catch {
+                // Silently ignore callback errors
+            }
+        }
+    }
+
+    /**
+     * Handle watcher errors.
+     */
+    private handleError(error: Error): void {
+        // Log error but don't crash
+        console.error(`[Watchdog] Error: ${error.message}`)
+    }
+
+    /**
+     * Check if a file should be watched based on extension.
+     */
+    private isValidFile(filePath: string): boolean {
+        const ext = path.extname(filePath)
+        return this.options.extensions.includes(ext)
+    }
+
+    /**
+     * Build glob patterns for watching.
+     */
+    private buildGlobPatterns(root: string): string[] {
+        return this.options.extensions.map((ext) => path.join(root, "**", `*${ext}`))
+    }
+
+    /**
+     * Build ignore patterns for chokidar.
+     */
+    private buildIgnorePatterns(): (string | RegExp)[] {
+        const patterns: (string | RegExp)[] = []
+
+        for (const pattern of this.options.ignorePatterns) {
+            if (pattern.includes("*")) {
+                const regexPattern = pattern
+                    .replace(/\./g, "\\.")
+                    .replace(/\*\*/g, ".*")
+                    .replace(/\*/g, "[^/]*")
+                patterns.push(new RegExp(regexPattern))
+            } else {
+                patterns.push(`**/${pattern}/**`)
+            }
+        }
+
+        return patterns
+    }
+
+    /**
+     * Force flush all pending changes immediately.
+     */
+    flushAll(): void {
+        for (const timer of this.debounceTimers.values()) {
+            clearTimeout(timer)
+        }
+        this.debounceTimers.clear()
+
+        for (const filePath of this.pendingChanges.keys()) {
+            this.flushChange(filePath)
+        }
+    }
+
+    /**
+     * Get watched paths (for debugging).
+     */
+    getWatchedPaths(): string[] {
+        if (!this.watcher) {
+            return []
+        }
+        const watched = this.watcher.getWatched()
+        const paths: string[] = []
+        for (const dir of Object.keys(watched)) {
+            for (const file of watched[dir]) {
+                paths.push(path.join(dir, file))
+            }
+        }
+        return paths.sort()
+    }
+}
--- a/packages/ipuaro/src/infrastructure/indexer/index.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/index.ts
@@ -0,0 +1,6 @@
+export * from "./FileScanner.js"
+export * from "./ASTParser.js"
+export * from "./MetaAnalyzer.js"
+export * from "./IndexBuilder.js"
+export * from "./Watchdog.js"
+export * from "./tree-sitter-types.js"
--- a/packages/ipuaro/src/infrastructure/indexer/tree-sitter-types.ts
+++ b/packages/ipuaro/src/infrastructure/indexer/tree-sitter-types.ts
@@ -0,0 +1,77 @@
+/**
+ * Tree-sitter node type constants for TypeScript/JavaScript parsing.
+ * These are infrastructure-level constants, not exposed to domain/application layers.
+ *
+ * Source: tree-sitter-typescript/typescript/src/node-types.json
+ */
+
+export const NodeType = {
+    // Statements
+    IMPORT_STATEMENT: "import_statement",
+    EXPORT_STATEMENT: "export_statement",
+    LEXICAL_DECLARATION: "lexical_declaration",
+
+    // Declarations
+    FUNCTION_DECLARATION: "function_declaration",
+    CLASS_DECLARATION: "class_declaration",
+    INTERFACE_DECLARATION: "interface_declaration",
+    TYPE_ALIAS_DECLARATION: "type_alias_declaration",
+
+    // Clauses
+    IMPORT_CLAUSE: "import_clause",
+    EXPORT_CLAUSE: "export_clause",
+    EXTENDS_CLAUSE: "extends_clause",
+    IMPLEMENTS_CLAUSE: "implements_clause",
+    EXTENDS_TYPE_CLAUSE: "extends_type_clause",
+    CLASS_HERITAGE: "class_heritage",
+
+    // Import specifiers
+    NAMESPACE_IMPORT: "namespace_import",
+    NAMED_IMPORTS: "named_imports",
+    IMPORT_SPECIFIER: "import_specifier",
+    EXPORT_SPECIFIER: "export_specifier",
+
+    // Class members
+    METHOD_DEFINITION: "method_definition",
+    PUBLIC_FIELD_DEFINITION: "public_field_definition",
+    FIELD_DEFINITION: "field_definition",
+    PROPERTY_SIGNATURE: "property_signature",
+
+    // Parameters
+    REQUIRED_PARAMETER: "required_parameter",
+    OPTIONAL_PARAMETER: "optional_parameter",
+
+    // Expressions & values
+    ARROW_FUNCTION: "arrow_function",
+    FUNCTION: "function",
+    VARIABLE_DECLARATOR: "variable_declarator",
+
+    // Identifiers & types
+    IDENTIFIER: "identifier",
+    TYPE_IDENTIFIER: "type_identifier",
+
+    // Modifiers
+    ASYNC: "async",
+    STATIC: "static",
+    ABSTRACT: "abstract",
+    DEFAULT: "default",
+    ACCESSIBILITY_MODIFIER: "accessibility_modifier",
+    READONLY: "readonly",
+} as const
+
+export type NodeTypeValue = (typeof NodeType)[keyof typeof NodeType]
+
+export const FieldName = {
+    SOURCE: "source",
+    NAME: "name",
+    ALIAS: "alias",
+    DECLARATION: "declaration",
+    PARAMETERS: "parameters",
+    RETURN_TYPE: "return_type",
+    BODY: "body",
+    TYPE: "type",
+    PATTERN: "pattern",
+    VALUE: "value",
+} as const
+
+export type FieldNameValue = (typeof FieldName)[keyof typeof FieldName]
--- a/packages/ipuaro/src/infrastructure/llm/OllamaClient.ts
+++ b/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 ${this.model}`,
+            )
+        }
+
+        return IpuaroError.llm(fullMessage)
+    }
+}
--- a/packages/ipuaro/src/infrastructure/llm/ResponseParser.ts
+++ b/packages/ipuaro/src/infrastructure/llm/ResponseParser.ts
@@ -0,0 +1,220 @@
+import { createToolCall, type ToolCall } from "../../domain/value-objects/ToolCall.js"
+
+/**
+ * Parsed response from LLM.
+ */
+export interface ParsedResponse {
+    /** Text content (excluding tool calls) */
+    content: string
+    /** Extracted tool calls */
+    toolCalls: ToolCall[]
+    /** Whether parsing encountered issues */
+    hasParseErrors: boolean
+    /** Parse error messages */
+    parseErrors: string[]
+}
+
+/**
+ * XML tool call tag pattern.
+ * Matches: <tool_call name="tool_name">...</tool_call>
+ */
+const TOOL_CALL_REGEX = /<tool_call\s+name\s*=\s*"([^"]+)">([\s\S]*?)<\/tool_call>/gi
+
+/**
+ * XML parameter tag pattern.
+ * Matches: <param name="param_name">value</param> or <param_name>value</param_name>
+ */
+const PARAM_REGEX_NAMED = /<param\s+name\s*=\s*"([^"]+)">([\s\S]*?)<\/param>/gi
+const PARAM_REGEX_ELEMENT = /<([a-z_][a-z0-9_]*)>([\s\S]*?)<\/\1>/gi
+
+/**
+ * Parse tool calls from LLM response text.
+ * Supports XML format: <tool_call name="get_lines"><path>src/index.ts</path></tool_call>
+ */
+export function parseToolCalls(response: string): ParsedResponse {
+    const toolCalls: ToolCall[] = []
+    const parseErrors: string[] = []
+    let content = response
+
+    const matches = [...response.matchAll(TOOL_CALL_REGEX)]
+
+    for (const match of matches) {
+        const [fullMatch, toolName, paramsXml] = match
+
+        try {
+            const params = parseParameters(paramsXml)
+            const toolCall = createToolCall(
+                `xml_${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,
+    }
+}
--- a/packages/ipuaro/src/infrastructure/llm/index.ts
+++ b/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"
--- a/packages/ipuaro/src/infrastructure/llm/prompts.ts
+++ b/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)`
+}
--- a/packages/ipuaro/src/infrastructure/llm/toolDefs.ts
+++ b/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 []
+    }
+}
--- a/packages/ipuaro/src/infrastructure/storage/RedisClient.ts
+++ b/packages/ipuaro/src/infrastructure/storage/RedisClient.ts
@@ -0,0 +1,119 @@
+import { Redis } from "ioredis"
+import type { RedisConfig } from "../../shared/constants/config.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+
+/**
+ * Redis client wrapper with connection management.
+ * Handles connection lifecycle and AOF configuration.
+ */
+export class RedisClient {
+    private client: Redis | null = null
+    private readonly config: RedisConfig
+    private connected = false
+
+    constructor(config: RedisConfig) {
+        this.config = config
+    }
+
+    /**
+     * Connect to Redis server.
+     * Configures AOF persistence on successful connection.
+     */
+    async connect(): Promise<void> {
+        if (this.connected && this.client) {
+            return
+        }
+
+        try {
+            this.client = new Redis({
+                host: this.config.host,
+                port: this.config.port,
+                db: this.config.db,
+                password: this.config.password,
+                keyPrefix: this.config.keyPrefix,
+                lazyConnect: true,
+                retryStrategy: (times: number): number | null => {
+                    if (times > 3) {
+                        return null
+                    }
+                    return Math.min(times * 200, 1000)
+                },
+                maxRetriesPerRequest: 3,
+                enableReadyCheck: true,
+            })
+
+            await this.client.connect()
+            await this.configureAOF()
+            this.connected = true
+        } catch (error) {
+            this.connected = false
+            this.client = null
+            const message = error instanceof Error ? error.message : "Unknown error"
+            throw IpuaroError.redis(`Failed to connect to Redis: ${message}`)
+        }
+    }
+
+    /**
+     * Disconnect from Redis server.
+     */
+    async disconnect(): Promise<void> {
+        if (this.client) {
+            await this.client.quit()
+            this.client = null
+            this.connected = false
+        }
+    }
+
+    /**
+     * Check if connected to Redis.
+     */
+    isConnected(): boolean {
+        return this.connected && this.client !== null && this.client.status === "ready"
+    }
+
+    /**
+     * Get the underlying Redis client.
+     * @throws IpuaroError if not connected
+     */
+    getClient(): Redis {
+        if (!this.client || !this.connected) {
+            throw IpuaroError.redis("Redis client is not connected")
+        }
+        return this.client
+    }
+
+    /**
+     * Execute a health check ping.
+     */
+    async ping(): Promise<boolean> {
+        if (!this.client) {
+            return false
+        }
+        try {
+            const result = await this.client.ping()
+            return result === "PONG"
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Configure AOF (Append Only File) persistence.
+     * AOF provides better durability by logging every write operation.
+     */
+    private async configureAOF(): Promise<void> {
+        if (!this.client) {
+            return
+        }
+
+        try {
+            await this.client.config("SET", "appendonly", "yes")
+            await this.client.config("SET", "appendfsync", "everysec")
+        } catch {
+            /*
+             * AOF config may fail if Redis doesn't allow CONFIG SET.
+             * This is non-fatal - persistence will still work with default settings.
+             */
+        }
+    }
+}
--- a/packages/ipuaro/src/infrastructure/storage/RedisStorage.ts
+++ b/packages/ipuaro/src/infrastructure/storage/RedisStorage.ts
@@ -0,0 +1,236 @@
+import type { DepsGraph, IStorage, SymbolIndex } from "../../domain/services/IStorage.js"
+import type { FileAST } from "../../domain/value-objects/FileAST.js"
+import type { FileData } from "../../domain/value-objects/FileData.js"
+import type { FileMeta } from "../../domain/value-objects/FileMeta.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+import { RedisClient } from "./RedisClient.js"
+import { IndexFields, ProjectKeys } from "./schema.js"
+
+/**
+ * Redis implementation of IStorage.
+ * Stores project data (files, AST, meta, indexes) in Redis hashes.
+ */
+export class RedisStorage implements IStorage {
+    private readonly client: RedisClient
+    private readonly projectName: string
+
+    constructor(client: RedisClient, projectName: string) {
+        this.client = client
+        this.projectName = projectName
+    }
+
+    async getFile(path: string): Promise<FileData | null> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.files(this.projectName), path)
+        if (!data) {
+            return null
+        }
+        return this.parseJSON(data, "FileData") as FileData
+    }
+
+    async setFile(path: string, data: FileData): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hset(ProjectKeys.files(this.projectName), path, JSON.stringify(data))
+    }
+
+    async deleteFile(path: string): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hdel(ProjectKeys.files(this.projectName), path)
+    }
+
+    async getAllFiles(): Promise<Map<string, FileData>> {
+        const redis = this.getRedis()
+        const data = await redis.hgetall(ProjectKeys.files(this.projectName))
+        const result = new Map<string, FileData>()
+
+        for (const [path, value] of Object.entries(data)) {
+            const parsed = this.parseJSON(value, "FileData") as FileData | null
+            if (parsed) {
+                result.set(path, parsed)
+            }
+        }
+
+        return result
+    }
+
+    async getFileCount(): Promise<number> {
+        const redis = this.getRedis()
+        return redis.hlen(ProjectKeys.files(this.projectName))
+    }
+
+    async getAST(path: string): Promise<FileAST | null> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.ast(this.projectName), path)
+        if (!data) {
+            return null
+        }
+        return this.parseJSON(data, "FileAST") as FileAST
+    }
+
+    async setAST(path: string, ast: FileAST): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hset(ProjectKeys.ast(this.projectName), path, JSON.stringify(ast))
+    }
+
+    async deleteAST(path: string): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hdel(ProjectKeys.ast(this.projectName), path)
+    }
+
+    async getAllASTs(): Promise<Map<string, FileAST>> {
+        const redis = this.getRedis()
+        const data = await redis.hgetall(ProjectKeys.ast(this.projectName))
+        const result = new Map<string, FileAST>()
+
+        for (const [path, value] of Object.entries(data)) {
+            const parsed = this.parseJSON(value, "FileAST") as FileAST | null
+            if (parsed) {
+                result.set(path, parsed)
+            }
+        }
+
+        return result
+    }
+
+    async getMeta(path: string): Promise<FileMeta | null> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.meta(this.projectName), path)
+        if (!data) {
+            return null
+        }
+        return this.parseJSON(data, "FileMeta") as FileMeta
+    }
+
+    async setMeta(path: string, meta: FileMeta): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hset(ProjectKeys.meta(this.projectName), path, JSON.stringify(meta))
+    }
+
+    async deleteMeta(path: string): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hdel(ProjectKeys.meta(this.projectName), path)
+    }
+
+    async getAllMetas(): Promise<Map<string, FileMeta>> {
+        const redis = this.getRedis()
+        const data = await redis.hgetall(ProjectKeys.meta(this.projectName))
+        const result = new Map<string, FileMeta>()
+
+        for (const [path, value] of Object.entries(data)) {
+            const parsed = this.parseJSON(value, "FileMeta") as FileMeta | null
+            if (parsed) {
+                result.set(path, parsed)
+            }
+        }
+
+        return result
+    }
+
+    async getSymbolIndex(): Promise<SymbolIndex> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.indexes(this.projectName), IndexFields.symbols)
+        if (!data) {
+            return new Map()
+        }
+
+        const parsed = this.parseJSON(data, "SymbolIndex") as [string, unknown[]][] | null
+        if (!parsed) {
+            return new Map()
+        }
+
+        return new Map(parsed) as SymbolIndex
+    }
+
+    async setSymbolIndex(index: SymbolIndex): Promise<void> {
+        const redis = this.getRedis()
+        const serialized = JSON.stringify([...index.entries()])
+        await redis.hset(ProjectKeys.indexes(this.projectName), IndexFields.symbols, serialized)
+    }
+
+    async getDepsGraph(): Promise<DepsGraph> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.indexes(this.projectName), IndexFields.depsGraph)
+        if (!data) {
+            return {
+                imports: new Map(),
+                importedBy: new Map(),
+            }
+        }
+
+        const parsed = this.parseJSON(data, "DepsGraph") as {
+            imports: [string, string[]][]
+            importedBy: [string, string[]][]
+        } | null
+
+        if (!parsed) {
+            return {
+                imports: new Map(),
+                importedBy: new Map(),
+            }
+        }
+
+        return {
+            imports: new Map(parsed.imports),
+            importedBy: new Map(parsed.importedBy),
+        }
+    }
+
+    async setDepsGraph(graph: DepsGraph): Promise<void> {
+        const redis = this.getRedis()
+        const serialized = JSON.stringify({
+            imports: [...graph.imports.entries()],
+            importedBy: [...graph.importedBy.entries()],
+        })
+        await redis.hset(ProjectKeys.indexes(this.projectName), IndexFields.depsGraph, serialized)
+    }
+
+    async getProjectConfig(key: string): Promise<unknown> {
+        const redis = this.getRedis()
+        const data = await redis.hget(ProjectKeys.config(this.projectName), key)
+        if (!data) {
+            return null
+        }
+        return this.parseJSON(data, "ProjectConfig")
+    }
+
+    async setProjectConfig(key: string, value: unknown): Promise<void> {
+        const redis = this.getRedis()
+        await redis.hset(ProjectKeys.config(this.projectName), key, JSON.stringify(value))
+    }
+
+    async connect(): Promise<void> {
+        await this.client.connect()
+    }
+
+    async disconnect(): Promise<void> {
+        await this.client.disconnect()
+    }
+
+    isConnected(): boolean {
+        return this.client.isConnected()
+    }
+
+    async clear(): Promise<void> {
+        const redis = this.getRedis()
+        await Promise.all([
+            redis.del(ProjectKeys.files(this.projectName)),
+            redis.del(ProjectKeys.ast(this.projectName)),
+            redis.del(ProjectKeys.meta(this.projectName)),
+            redis.del(ProjectKeys.indexes(this.projectName)),
+            redis.del(ProjectKeys.config(this.projectName)),
+        ])
+    }
+
+    private getRedis(): ReturnType<RedisClient["getClient"]> {
+        return this.client.getClient()
+    }
+
+    private parseJSON(data: string, type: string): unknown {
+        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}: ${message}`)
+        }
+    }
+}
--- a/packages/ipuaro/src/infrastructure/storage/index.ts
+++ b/packages/ipuaro/src/infrastructure/storage/index.ts
@@ -0,0 +1,10 @@
+// Storage module exports
+export { RedisClient } from "./RedisClient.js"
+export { RedisStorage } from "./RedisStorage.js"
+export {
+    ProjectKeys,
+    SessionKeys,
+    IndexFields,
+    SessionFields,
+    generateProjectName,
+} from "./schema.js"
--- a/packages/ipuaro/src/infrastructure/storage/schema.ts
+++ b/packages/ipuaro/src/infrastructure/storage/schema.ts
@@ -0,0 +1,95 @@
+/**
+ * Redis key schema for ipuaro data storage.
+ *
+ * Key structure:
+ * - project:{name}:files      # Hash<path, FileData>
+ * - project:{name}:ast        # Hash<path, FileAST>
+ * - project:{name}:meta       # Hash<path, FileMeta>
+ * - project:{name}:indexes    # Hash<name, JSON> (symbols, deps_graph)
+ * - project:{name}:config     # Hash<key, JSON>
+ *
+ * - session:{id}:data         # Hash<field, JSON> (history, context, stats)
+ * - session:{id}:undo         # List<UndoEntry> (max 10)
+ * - sessions:list             # List<session_id>
+ *
+ * Project name format: {parent-folder}-{project-folder}
+ */
+
+/**
+ * Project-related Redis keys.
+ */
+export const ProjectKeys = {
+    files: (projectName: string): string => `project:${projectName}:files`,
+    ast: (projectName: string): string => `project:${projectName}:ast`,
+    meta: (projectName: string): string => `project:${projectName}:meta`,
+    indexes: (projectName: string): string => `project:${projectName}:indexes`,
+    config: (projectName: string): string => `project:${projectName}:config`,
+} as const
+
+/**
+ * Session-related Redis keys.
+ */
+export const SessionKeys = {
+    data: (sessionId: string): string => `session:${sessionId}:data`,
+    undo: (sessionId: string): string => `session:${sessionId}:undo`,
+    list: "sessions:list",
+} as const
+
+/**
+ * Index field names within project:indexes hash.
+ */
+export const IndexFields = {
+    symbols: "symbols",
+    depsGraph: "deps_graph",
+} as const
+
+/**
+ * Session data field names within session:data hash.
+ */
+export const SessionFields = {
+    history: "history",
+    context: "context",
+    stats: "stats",
+    inputHistory: "input_history",
+    createdAt: "created_at",
+    lastActivityAt: "last_activity_at",
+    projectName: "project_name",
+} as const
+
+/**
+ * Generate project name from path.
+ * Format: {parent-folder}-{project-folder}
+ *
+ * @example
+ * generateProjectName("/home/user/projects/myapp") -> "projects-myapp"
+ * generateProjectName("/app") -> "app"
+ */
+export function generateProjectName(projectPath: string): string {
+    const normalized = projectPath.replace(/\\/g, "/").replace(/\/+$/, "")
+    const parts = normalized.split("/").filter(Boolean)
+
+    if (parts.length === 0) {
+        return "root"
+    }
+
+    if (parts.length === 1) {
+        return sanitizeName(parts[0])
+    }
+
+    const projectFolder = sanitizeName(parts[parts.length - 1])
+    const parentFolder = sanitizeName(parts[parts.length - 2])
+
+    return `${parentFolder}-${projectFolder}`
+}
+
+/**
+ * Sanitize a name for use in Redis keys.
+ * Replaces non-alphanumeric characters with hyphens.
+ */
+function sanitizeName(name: string): string {
+    return name
+        .toLowerCase()
+        .replace(/[^a-z0-9-]/g, "-")
+        .replace(/-+/g, "-")
+        .replace(/^-|-$/g, "")
+}
--- a/packages/ipuaro/src/infrastructure/tools/index.ts
+++ b/packages/ipuaro/src/infrastructure/tools/index.ts
@@ -0,0 +1,12 @@
+// 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"
--- a/packages/ipuaro/src/infrastructure/tools/read/GetClassTool.ts
+++ b/packages/ipuaro/src/infrastructure/tools/read/GetClassTool.ts
@@ -0,0 +1,165 @@
+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 { ClassInfo } from "../../../domain/value-objects/FileAST.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.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 relativePath = params.path as string
+        const className = params.name as string
+        const absolutePath = path.resolve(ctx.projectRoot, relativePath)
+
+        if (!absolutePath.startsWith(ctx.projectRoot)) {
+            return createErrorResult(
+                callId,
+                "Path must be within project root",
+                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")
+    }
+}
--- a/packages/ipuaro/src/infrastructure/tools/read/GetFunctionTool.ts
+++ b/packages/ipuaro/src/infrastructure/tools/read/GetFunctionTool.ts
@@ -0,0 +1,161 @@
+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 { FunctionInfo } from "../../../domain/value-objects/FileAST.js"
+import {
+    createErrorResult,
+    createSuccessResult,
+    type ToolResult,
+} from "../../../domain/value-objects/ToolResult.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}-${String(startTime)}`
+
+        const relativePath = params.path as string
+        const functionName = params.name as string
+        const absolutePath = path.resolve(ctx.projectRoot, relativePath)
+
+        if (!absolutePath.startsWith(ctx.projectRoot)) {
+            return createErrorResult(
+                callId,
+                "Path must be within project root",
+                Date.now() - startTime,
+            )
+        }
+
+        try {
+            const ast = await ctx.storage.getAST(relativePath)
+            if (!ast) {
+                return createErrorResult(
+                    callId,
+                    `AST not found for "${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")
+    }
+}
--- a/packages/ipuaro/src/infrastructure/tools/read/GetLinesTool.ts
+++ b/packages/ipuaro/src/infrastructure/tools/read/GetLinesTool.ts
@@ -0,0 +1,158 @@
+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"
+
+/**
+ * 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 relativePath = params.path as string
+        const absolutePath = path.resolve(ctx.projectRoot, relativePath)
+
+        if (!absolutePath.startsWith(ctx.projectRoot)) {
+            return createErrorResult(
+                callId,
+                "Path must be within project root",
+                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")
+    }
+}
--- a/packages/ipuaro/src/infrastructure/tools/read/GetStructureTool.ts
+++ b/packages/ipuaro/src/infrastructure/tools/read/GetStructureTool.ts
@@ -0,0 +1,205 @@
+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"
+
+/**
+ * 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}-${String(startTime)}`
+
+        const relativePath = (params.path as string | undefined) ?? ""
+        const maxDepth = params.depth as number | undefined
+        const absolutePath = path.resolve(ctx.projectRoot, relativePath)
+
+        if (!absolutePath.startsWith(ctx.projectRoot)) {
+            return createErrorResult(
+                callId,
+                "Path must be within project root",
+                Date.now() - startTime,
+            )
+        }
+
+        try {
+            const stat = await fs.stat(absolutePath)
+            if (!stat.isDirectory()) {
+                return createErrorResult(
+                    callId,
+                    `Path "${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")
+    }
+}
--- a/packages/ipuaro/src/infrastructure/tools/registry.ts
+++ b/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)
+    }
+}
--- a/packages/ipuaro/src/shared/config/index.ts
+++ b/packages/ipuaro/src/shared/config/index.ts
@@ -0,0 +1,2 @@
+// Config module exports
+export * from "./loader.js"
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
imfozilbek	25146003cc	feat(ipuaro): add read tools (v0.5.0) - ToolRegistry: tool lifecycle management, execution with validation - GetLinesTool: read file lines with line numbers - GetFunctionTool: get function source using AST - GetClassTool: get class source using AST - GetStructureTool: directory tree with filtering 121 new tests, 540 total	2025-12-01 00:52:00 +05:00
imfozilbek	68f927d906	feat(ipuaro): add LLM integration module - OllamaClient: ILLMClient implementation with tool support - System prompt and context builders for project overview - 18 tool definitions across 6 categories (read, edit, search, analysis, git, run) - XML response parser for tool call extraction - 98 new tests (419 total), 96.38% coverage	2025-12-01 00:10:11 +05:00
imfozilbek	b3e04a411c	fix: normalize repository URLs in package.json	2025-11-30 01:53:57 +05:00
imfozilbek	294d085ad4	chore(ipuaro): bump version to 0.3.1	2025-11-30 01:50:33 +05:00
imfozilbek	958e4daed5	chore(guardian): bump version to 0.9.4	2025-11-30 01:50:21 +05:00
imfozilbek	6234fbce92	docs: add roadmap workflow instructions	2025-11-30 01:28:44 +05:00
imfozilbek	af9c2377a0	chore(ipuaro): bump version to 0.3.0	2025-11-30 01:25:23 +05:00
imfozilbek	d0c1ddc22e	feat(ipuaro): implement indexer module (v0.3.0) Add complete indexer infrastructure: - FileScanner: recursive scanning with gitignore support - ASTParser: tree-sitter based TS/JS/TSX/JSX parsing - MetaAnalyzer: complexity metrics, dependency analysis - IndexBuilder: symbol index and dependency graph - Watchdog: file watching with chokidar and debouncing 321 tests, 96.38% coverage	2025-11-30 01:24:21 +05:00
imfozilbek	225480c806	feat(ipuaro): implement Redis storage module (v0.2.0) - Add RedisClient with connection management and AOF config - Add RedisStorage implementing full IStorage interface - Add Redis key schema for project and session data - Add generateProjectName() utility - Add 68 unit tests for Redis module (159 total) - Update ESLint: no-unnecessary-type-parameters as warn	2025-11-30 00:22:49 +05:00
imfozilbek	fd8e97af0e	chore(ipuaro): bump version to 0.1.1	2025-11-29 23:25:49 +05:00
imfozilbek	d36f9a6e21	chore(guardian): bump version to 0.9.3	2025-11-29 23:24:28 +05:00
imfozilbek	4267938dcd	docs(guardian): remove fictional success stories and stats	2025-11-29 23:22:26 +05:00
imfozilbek	127c7e2185	docs(ipuaro): improve README with detailed documentation	2025-11-29 23:19:56 +05:00
imfozilbek	130a8c4f24	feat(ipuaro): implement v0.1.0 foundation - Project setup with tsup, vitest, ESM support - Domain entities: Session, Project - Value objects: FileData, FileAST, FileMeta, ChatMessage, ToolCall, ToolResult, UndoEntry - Service interfaces: IStorage, ILLMClient, ITool, IIndexer, IToolRegistry - Shared: Config (zod), IpuaroError, utils (hash, tokens), Result type - CLI with placeholder commands (start, init, index) - 91 unit tests with 100% coverage - Fix package scope @puaros -> @samiyev in CLAUDE.md	2025-11-29 23:08:38 +05:00
imfozilbek	7f6180df37	docs: add monorepo versioning strategy and release pipeline - add Path Reference section with explicit paths - add Monorepo Versioning Strategy with prefixed tags - add 6-phase Release Pipeline documentation - update Git Commit Format for monorepo (package scope) - update .gitmessage with package scopes - fix tsconfig.json references (remove non-existent, add ipuaro) - fix guardian tsconfig formatting (4-space indent)	2025-11-29 22:41:03 +05:00
imfozilbek	daace23814	docs: move ipuaro CONCEPT.md to docs folder	2025-11-29 22:12:28 +05:00
imfozilbek	625e109c0a	feat: add ipuaro package with concept and roadmap	2025-11-29 22:10:32 +05:00
imfozilbek	ec7adb1330	docs: add ipuaro package documentation to root files	2025-11-29 22:10:13 +05:00
imfozilbek	085e236c4a	docs: move guardian analysis docs to docs folder	2025-11-29 22:09:42 +05:00
imfozilbek	ee6388f587	docs: add research on project structure detection approaches	2025-11-28 11:41:21 +05:00
imfozilbek	a75dbcf147	chore: bump version to 0.9.2	2025-11-27 19:32:07 +05:00
imfozilbek	42da5127cc	docs: update CHANGELOG.md for v0.9.2	2025-11-27 19:28:32 +05:00
imfozilbek	0da6d9f3c2	test: update naming convention detector tests for AST-based analysis	2025-11-27 19:27:46 +05:00
imfozilbek	6b35679f09	refactor: update AST strategies to use centralized node type constants	2025-11-27 19:27:30 +05:00
imfozilbek	07e6535633	refactor: add context keywords and improve hardcoded value suggestions	2025-11-27 19:27:07 +05:00
imfozilbek	e8626dd03c	refactor: migrate naming convention detector to AST-based analysis	2025-11-27 19:26:43 +05:00
imfozilbek	ce78183c6e	refactor: create AST-based naming analyzers for enhanced detection	2025-11-27 19:26:24 +05:00
imfozilbek	1d6aebcd87	refactor: add AST node type constants for tree-sitter analysis	2025-11-27 19:26:01 +05:00
imfozilbek	ceb87f1b1f	chore: bump version to 0.9.1	2025-11-26 18:10:36 +05:00