feat: add secret detection with Secretlint (v0.8.0)

Add critical security feature to detect 350+ types of hardcoded secrets
using industry-standard Secretlint library.

Features:
- Detect AWS keys, GitHub tokens, NPM tokens, SSH keys, API keys, etc.
- All secrets marked as CRITICAL severity
- Context-aware remediation suggestions per secret type
- New SecretDetector using @secretlint/node
- New SecretViolation value object (100% test coverage)
- CLI output with "🔐 Secrets" section
- Async pipeline support for secret detection

Tests:
- Added 47 new tests (566 total, 100% pass rate)
- Coverage: 93.3% statements, 83.74% branches
- SecretViolation: 23 tests, 100% coverage
- SecretDetector: 24 tests

Dependencies:
- @secretlint/node: 11.2.5
- @secretlint/core: 11.2.5
- @secretlint/types: 11.2.5
- @secretlint/secretlint-rule-preset-recommend: 11.2.5

packages/guardian/CHANGELOG.md

@@ -5,6 +5,78 @@ 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).
 
+## [0.8.0] - 2025-11-25
+
+### Added
+
+- 🔐 **Secret Detection** - NEW CRITICAL security feature using industry-standard Secretlint:
+  - Detects 350+ types of hardcoded secrets (AWS keys, GitHub tokens, NPM tokens, SSH keys, API keys, etc.)
+  - All secrets marked as **CRITICAL severity** for immediate attention
+  - Context-aware remediation suggestions for each secret type
+  - Integrated seamlessly with existing detectors
+  - New `SecretDetector` infrastructure component using `@secretlint/node`
+  - New `SecretViolation` value object with rich examples
+  - New `ISecretDetector` domain interface
+  - CLI output with "🔐 Found X hardcoded secrets - CRITICAL SECURITY RISK" section
+  - Added dependencies: `@secretlint/node`, `@secretlint/core`, `@secretlint/types`, `@secretlint/secretlint-rule-preset-recommend`
+
+### Changed
+
+- 🔄 **Pipeline async support** - `DetectionPipeline.execute()` now async for secret detection
+- 📊 **Test suite expanded** - Added 47 new tests (23 for SecretViolation, 24 for SecretDetector)
+  - Total: 566 tests (was 519), 100% pass rate
+  - Coverage: 93.3% statements, 83.74% branches, 98.17% functions
+  - SecretViolation: 100% coverage
+- 📝 **Documentation updated**:
+  - README.md: Added Secret Detection section with examples
+  - ROADMAP.md: Marked v0.8.0 as released
+  - Updated package description to mention secrets detection
+
+### Security
+
+- 🛡️ **Prevents credentials in version control** - catches AWS, GitHub, NPM, SSH, Slack, GCP secrets before commit
+- ⚠️ **CRITICAL violations** - all hardcoded secrets immediately flagged with highest severity
+- 💡 **Smart remediation** - provides specific guidance per secret type (environment variables, secret managers, etc.)
+
+## [0.7.9] - 2025-11-25
+
+### Changed
+
+- ♻️ **Refactored large detectors** - significantly improved maintainability and reduced complexity:
+  - **AggregateBoundaryDetector**: Reduced from 381 to 162 lines (57% reduction)
+  - **HardcodeDetector**: Reduced from 459 to 89 lines (81% reduction)
+  - **RepositoryPatternDetector**: Reduced from 479 to 106 lines (78% reduction)
+  - Extracted 13 focused strategy classes for single responsibilities
+  - All 519 tests pass, no breaking changes
+  - Zero ESLint errors (1 pre-existing warning unrelated to refactoring)
+  - Improved code organization and separation of concerns
+
+### Added
+
+- 🏗️ **13 new strategy classes** for focused responsibilities:
+  - `FolderRegistry` - Centralized DDD folder name management
+  - `AggregatePathAnalyzer` - Path parsing and aggregate extraction
+  - `ImportValidator` - Import validation logic
+  - `BraceTracker` - Brace and bracket counting
+  - `ConstantsFileChecker` - Constants file detection
+  - `ExportConstantAnalyzer` - Export const analysis
+  - `MagicNumberMatcher` - Magic number detection
+  - `MagicStringMatcher` - Magic string detection
+  - `OrmTypeMatcher` - ORM type matching
+  - `MethodNameValidator` - Repository method validation
+  - `RepositoryFileAnalyzer` - File role detection
+  - `RepositoryViolationDetector` - Violation detection logic
+  - Enhanced testability with smaller, focused classes
+
+### Improved
+
+- 📊 **Code quality metrics**:
+  - Reduced cyclomatic complexity across all three detectors
+  - Better separation of concerns with strategy pattern
+  - More maintainable and extensible codebase
+  - Easier to add new detection patterns
+  - Improved code readability and self-documentation
+
 ## [0.7.8] - 2025-11-25
 
 ### Added

packages/guardian/README.md

@@ -72,7 +72,7 @@ Code quality guardian for vibe coders and enterprise teams - because AI writes f
 - Prevents "new Repository()" anti-pattern
 - 📚 *Based on: Martin Fowler's Repository Pattern, DDD (Evans 2003)* → [Why?](./docs/WHY.md#repository-pattern)
 
-🔒 **Aggregate Boundary Validation** ✨ NEW
+🔒 **Aggregate Boundary Validation**
 - Detects direct entity references across DDD aggregates
 - Enforces reference-by-ID or Value Object pattern
 - Prevents tight coupling between aggregates
@@ -81,6 +81,15 @@ Code quality guardian for vibe coders and enterprise teams - because AI writes f
 - Critical severity for maintaining aggregate independence
 - 📚 *Based on: Domain-Driven Design (Evans 2003), Implementing DDD (Vernon 2013)* → [Why?](./docs/WHY.md#aggregate-boundaries)
 
+🔐 **Secret Detection** ✨ NEW in v0.8.0
+- Detects 350+ types of hardcoded secrets using industry-standard Secretlint
+- Catches AWS keys, GitHub tokens, NPM tokens, SSH keys, API keys, and more
+- All secrets marked as **CRITICAL severity** - immediate security risk
+- Context-aware remediation suggestions for each secret type
+- Prevents credentials from reaching version control
+- Integrates seamlessly with existing detectors
+- 📚 *Based on: OWASP Top 10, CWE-798 (Hardcoded Credentials), NIST Security Guidelines* → [Learn more](https://owasp.org/www-community/vulnerabilities/Use_of_hard-coded_password)
+
 🏗️ **Clean Architecture Enforcement**
 - Built with DDD principles
 - Layered architecture (Domain, Application, Infrastructure)
@@ -366,6 +375,15 @@ const result = await analyzeProject({
 })
 
 console.log(`Found ${result.hardcodeViolations.length} hardcoded values`)
+console.log(`Found ${result.secretViolations.length} hardcoded secrets 🔐`)
+
+// Check for critical security issues first!
+result.secretViolations.forEach((violation) => {
+    console.log(`🔐 CRITICAL: ${violation.file}:${violation.line}`)
+    console.log(`  Secret Type: ${violation.secretType}`)
+    console.log(`  ${violation.message}`)
+    console.log(`  ⚠️  Rotate this secret immediately!`)
+})
 
 result.hardcodeViolations.forEach((violation) => {
     console.log(`${violation.file}:${violation.line}`)
@@ -394,9 +412,9 @@ npx @samiyev/guardian check ./src --verbose
 npx @samiyev/guardian check ./src --no-hardcode  # Skip hardcode detection
 npx @samiyev/guardian check ./src --no-architecture  # Skip architecture checks
 
-# Filter by severity
+# Filter by severity (perfect for finding secrets first!)
-npx @samiyev/guardian check ./src --min-severity high  # Show high, critical only
+npx @samiyev/guardian check ./src --only-critical      # Show only critical issues (secrets, circular deps)
-npx @samiyev/guardian check ./src --only-critical      # Show only critical issues
+npx @samiyev/guardian check ./src --min-severity high  # Show high and critical only
 
 # Limit detailed output (useful for large codebases)
 npx @samiyev/guardian check ./src --limit 10           # Show first 10 violations per category

packages/guardian/ROADMAP.md

@@ -409,33 +409,52 @@ Add integration tests for full pipeline and CLI.
 - ✅ 519 total tests (519 passing, **100% pass rate** 🎉)
 - ✅ Comprehensive E2E coverage for API and CLI
 - ✅ 3 new E2E test files with full pipeline coverage
-- [ ] Publish to npm
+- ✅ Publish to npm
 
 ---
 
-### Version 0.7.9 - Refactor Large Detectors 🔧 (Optional)
+### Version 0.7.9 - Refactor Large Detectors 🔧 ✅ RELEASED
 
+**Released:** 2025-11-25
 **Priority:** LOW
 **Scope:** Single session (~128K tokens)
 
-Refactor largest detectors to reduce complexity.
+Refactored largest detectors to reduce complexity and improve maintainability.
 
-**Targets:**
+**Results:**
-| Detector | Lines | Complexity |
+| Detector | Before | After | Reduction |
-|----------|-------|------------|
+|----------|--------|-------|-----------|
-| RepositoryPatternDetector | 479 | 35 |
+| AggregateBoundaryDetector | 381 lines | 162 lines | 57% ✅ |
-| HardcodeDetector | 459 | 41 |
+| HardcodeDetector | 459 lines | 89 lines | 81% ✅ |
-| AggregateBoundaryDetector | 381 | 47 |
+| RepositoryPatternDetector | 479 lines | 106 lines | 78% ✅ |
 
-**Deliverables:**
+**Implemented Features:**
-- [ ] Extract regex patterns into strategies
+- ✅ Extracted 13 strategy classes for focused responsibilities
-- [ ] Reduce cyclomatic complexity < 25
+- ✅ Reduced file sizes by 57-81%
-- [ ] Publish to npm
+- ✅ Improved code organization and maintainability
+- ✅ All 519 tests passing
+- ✅ Zero ESLint errors, 1 pre-existing warning
+- ✅ No breaking changes
+
+**New Strategy Classes:**
+- `FolderRegistry` - Centralized DDD folder name management
+- `AggregatePathAnalyzer` - Path parsing and aggregate extraction
+- `ImportValidator` - Import validation logic
+- `BraceTracker` - Brace and bracket counting
+- `ConstantsFileChecker` - Constants file detection
+- `ExportConstantAnalyzer` - Export const analysis
+- `MagicNumberMatcher` - Magic number detection
+- `MagicStringMatcher` - Magic string detection
+- `OrmTypeMatcher` - ORM type matching
+- `MethodNameValidator` - Repository method validation
+- `RepositoryFileAnalyzer` - File role detection
+- `RepositoryViolationDetector` - Violation detection logic
 
 ---
 
-### Version 0.8.0 - Secret Detection 🔐
+### Version 0.8.0 - Secret Detection 🔐 ✅ RELEASED
-**Target:** Q1 2025
+
+**Released:** 2025-11-25
 **Priority:** CRITICAL
 
 Detect hardcoded secrets (API keys, tokens, credentials) using industry-standard Secretlint library.

packages/guardian/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@samiyev/guardian",
-    "version": "0.7.8",
+    "version": "0.8.0",
-    "description": "Research-backed code quality guardian for AI-assisted development. Detects hardcodes, circular deps, framework leaks, entity exposure, and 8 architecture violations. Enforces Clean Architecture/DDD principles. Works with GitHub Copilot, Cursor, Windsurf, Claude, ChatGPT, Cline, and any AI coding tool.",
+    "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",
         "guardian",
@@ -82,6 +82,10 @@
         "guardian": "./bin/guardian.js"
     },
     "dependencies": {
+        "@secretlint/core": "^11.2.5",
+        "@secretlint/node": "^11.2.5",
+        "@secretlint/secretlint-rule-preset-recommend": "^11.2.5",
+        "@secretlint/types": "^11.2.5",
         "commander": "^12.1.0",
         "simple-git": "^3.30.0",
         "tree-sitter": "^0.21.1",

packages/guardian/src/api.ts

@@ -12,6 +12,7 @@ import { IEntityExposureDetector } from "./domain/services/IEntityExposureDetect
 import { IDependencyDirectionDetector } from "./domain/services/IDependencyDirectionDetector"
 import { IRepositoryPatternDetector } from "./domain/services/RepositoryPatternDetectorService"
 import { IAggregateBoundaryDetector } from "./domain/services/IAggregateBoundaryDetector"
+import { ISecretDetector } from "./domain/services/ISecretDetector"
 import { FileScanner } from "./infrastructure/scanners/FileScanner"
 import { CodeParser } from "./infrastructure/parsers/CodeParser"
 import { HardcodeDetector } from "./infrastructure/analyzers/HardcodeDetector"
@@ -21,6 +22,7 @@ import { EntityExposureDetector } from "./infrastructure/analyzers/EntityExposur
 import { DependencyDirectionDetector } from "./infrastructure/analyzers/DependencyDirectionDetector"
 import { RepositoryPatternDetector } from "./infrastructure/analyzers/RepositoryPatternDetector"
 import { AggregateBoundaryDetector } from "./infrastructure/analyzers/AggregateBoundaryDetector"
+import { SecretDetector } from "./infrastructure/analyzers/SecretDetector"
 import { ERROR_MESSAGES } from "./shared/constants"
 
 /**
@@ -79,6 +81,7 @@ export async function analyzeProject(
         new DependencyDirectionDetector()
     const repositoryPatternDetector: IRepositoryPatternDetector = new RepositoryPatternDetector()
     const aggregateBoundaryDetector: IAggregateBoundaryDetector = new AggregateBoundaryDetector()
+    const secretDetector: ISecretDetector = new SecretDetector()
     const useCase = new AnalyzeProject(
         fileScanner,
         codeParser,
@@ -89,6 +92,7 @@ export async function analyzeProject(
         dependencyDirectionDetector,
         repositoryPatternDetector,
         aggregateBoundaryDetector,
+        secretDetector,
     )
 
     const result = await useCase.execute(options)

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

@@ -9,6 +9,7 @@ import { IEntityExposureDetector } from "../../domain/services/IEntityExposureDe
 import { IDependencyDirectionDetector } from "../../domain/services/IDependencyDirectionDetector"
 import { IRepositoryPatternDetector } from "../../domain/services/RepositoryPatternDetectorService"
 import { IAggregateBoundaryDetector } from "../../domain/services/IAggregateBoundaryDetector"
+import { ISecretDetector } from "../../domain/services/ISecretDetector"
 import { SourceFile } from "../../domain/entities/SourceFile"
 import { DependencyGraph } from "../../domain/entities/DependencyGraph"
 import { FileCollectionStep } from "./pipeline/FileCollectionStep"
@@ -42,6 +43,7 @@ export interface AnalyzeProjectResponse {
     dependencyDirectionViolations: DependencyDirectionViolation[]
     repositoryPatternViolations: RepositoryPatternViolation[]
     aggregateBoundaryViolations: AggregateBoundaryViolation[]
+    secretViolations: SecretViolation[]
     metrics: ProjectMetrics
 }
 
@@ -163,6 +165,17 @@ export interface AggregateBoundaryViolation {
     severity: SeverityLevel
 }
 
+export interface SecretViolation {
+    rule: typeof RULES.SECRET_EXPOSURE
+    secretType: string
+    file: string
+    line: number
+    column: number
+    message: string
+    suggestion: string
+    severity: SeverityLevel
+}
+
 export interface ProjectMetrics {
     totalFiles: number
     totalFunctions: number
@@ -193,6 +206,7 @@ export class AnalyzeProject extends UseCase<
         dependencyDirectionDetector: IDependencyDirectionDetector,
         repositoryPatternDetector: IRepositoryPatternDetector,
         aggregateBoundaryDetector: IAggregateBoundaryDetector,
+        secretDetector: ISecretDetector,
     ) {
         super()
         this.fileCollectionStep = new FileCollectionStep(fileScanner)
@@ -205,6 +219,7 @@ export class AnalyzeProject extends UseCase<
             dependencyDirectionDetector,
             repositoryPatternDetector,
             aggregateBoundaryDetector,
+            secretDetector,
         )
         this.resultAggregator = new ResultAggregator()
     }
@@ -224,7 +239,7 @@ export class AnalyzeProject extends UseCase<
                 rootDir: request.rootDir,
             })
 
-            const detectionResult = this.detectionPipeline.execute({
+            const detectionResult = await this.detectionPipeline.execute({
                 sourceFiles,
                 dependencyGraph,
             })

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

@@ -5,6 +5,7 @@ import { IEntityExposureDetector } from "../../../domain/services/IEntityExposur
 import { IDependencyDirectionDetector } from "../../../domain/services/IDependencyDirectionDetector"
 import { IRepositoryPatternDetector } from "../../../domain/services/RepositoryPatternDetectorService"
 import { IAggregateBoundaryDetector } from "../../../domain/services/IAggregateBoundaryDetector"
+import { ISecretDetector } from "../../../domain/services/ISecretDetector"
 import { SourceFile } from "../../../domain/entities/SourceFile"
 import { DependencyGraph } from "../../../domain/entities/DependencyGraph"
 import {
@@ -25,6 +26,7 @@ import type {
     HardcodeViolation,
     NamingConventionViolation,
     RepositoryPatternViolation,
+    SecretViolation,
 } from "../AnalyzeProject"
 
 export interface DetectionRequest {
@@ -42,6 +44,7 @@ export interface DetectionResult {
     dependencyDirectionViolations: DependencyDirectionViolation[]
     repositoryPatternViolations: RepositoryPatternViolation[]
     aggregateBoundaryViolations: AggregateBoundaryViolation[]
+    secretViolations: SecretViolation[]
 }
 
 /**
@@ -56,9 +59,12 @@ export class DetectionPipeline {
         private readonly dependencyDirectionDetector: IDependencyDirectionDetector,
         private readonly repositoryPatternDetector: IRepositoryPatternDetector,
         private readonly aggregateBoundaryDetector: IAggregateBoundaryDetector,
+        private readonly secretDetector: ISecretDetector,
     ) {}
 
-    public execute(request: DetectionRequest): DetectionResult {
+    public async execute(request: DetectionRequest): Promise<DetectionResult> {
+        const secretViolations = await this.detectSecrets(request.sourceFiles)
+
         return {
             violations: this.sortBySeverity(this.detectViolations(request.sourceFiles)),
             hardcodeViolations: this.sortBySeverity(this.detectHardcode(request.sourceFiles)),
@@ -83,6 +89,7 @@ export class DetectionPipeline {
             aggregateBoundaryViolations: this.sortBySeverity(
                 this.detectAggregateBoundaryViolations(request.sourceFiles),
             ),
+            secretViolations: this.sortBySeverity(secretViolations),
         }
     }
 
@@ -365,6 +372,32 @@ export class DetectionPipeline {
         return violations
     }
 
+    private async detectSecrets(sourceFiles: SourceFile[]): Promise<SecretViolation[]> {
+        const violations: SecretViolation[] = []
+
+        for (const file of sourceFiles) {
+            const secretViolations = await this.secretDetector.detectAll(
+                file.content,
+                file.path.relative,
+            )
+
+            for (const secret of secretViolations) {
+                violations.push({
+                    rule: RULES.SECRET_EXPOSURE,
+                    secretType: secret.secretType,
+                    file: file.path.relative,
+                    line: secret.line,
+                    column: secret.column,
+                    message: secret.getMessage(),
+                    suggestion: secret.getSuggestion(),
+                    severity: "critical",
+                })
+            }
+        }
+
+        return violations
+    }
+
     private sortBySeverity<T extends { severity: SeverityLevel }>(violations: T[]): T[] {
         return violations.sort((a, b) => {
             return SEVERITY_ORDER[a.severity] - SEVERITY_ORDER[b.severity]

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

@@ -12,6 +12,7 @@ import type {
     NamingConventionViolation,
     ProjectMetrics,
     RepositoryPatternViolation,
+    SecretViolation,
 } from "../AnalyzeProject"
 
 export interface AggregationRequest {
@@ -27,6 +28,7 @@ export interface AggregationRequest {
     dependencyDirectionViolations: DependencyDirectionViolation[]
     repositoryPatternViolations: RepositoryPatternViolation[]
     aggregateBoundaryViolations: AggregateBoundaryViolation[]
+    secretViolations: SecretViolation[]
 }
 
 /**
@@ -52,6 +54,7 @@ export class ResultAggregator {
             dependencyDirectionViolations: request.dependencyDirectionViolations,
             repositoryPatternViolations: request.repositoryPatternViolations,
             aggregateBoundaryViolations: request.aggregateBoundaryViolations,
+            secretViolations: request.secretViolations,
             metrics,
         }
     }

packages/guardian/src/cli/formatters/OutputFormatter.ts

@@ -9,6 +9,7 @@ import type {
     HardcodeViolation,
     NamingConventionViolation,
     RepositoryPatternViolation,
+    SecretViolation,
 } from "../../application/use-cases/AnalyzeProject"
 import { SEVERITY_DISPLAY_LABELS, SEVERITY_SECTION_HEADERS } from "../constants"
 import { ViolationGrouper } from "../groupers/ViolationGrouper"
@@ -177,6 +178,22 @@ export class OutputFormatter {
         console.log("")
     }
 
+    formatSecretViolation(sv: SecretViolation, index: number): void {
+        const location = `${sv.file}:${String(sv.line)}:${String(sv.column)}`
+        console.log(`${String(index + 1)}. ${location}`)
+        console.log(`   Severity: ${SEVERITY_LABELS[sv.severity]} ⚠️`)
+        console.log(`   Secret Type: ${sv.secretType}`)
+        console.log(`   ${sv.message}`)
+        console.log("   🔐 CRITICAL: Rotate this secret immediately!")
+        console.log("   💡 Suggestion:")
+        sv.suggestion.split("\n").forEach((line) => {
+            if (line.trim()) {
+                console.log(`      ${line}`)
+            }
+        })
+        console.log("")
+    }
+
     formatHardcodeViolation(hc: HardcodeViolation, index: number): void {
         console.log(`${String(index + 1)}. ${hc.file}:${String(hc.line)}:${String(hc.column)}`)
         console.log(`   Severity: ${SEVERITY_LABELS[hc.severity]}`)

packages/guardian/src/cli/index.ts

@@ -92,6 +92,7 @@ program
                 dependencyDirectionViolations,
                 repositoryPatternViolations,
                 aggregateBoundaryViolations,
+                secretViolations,
             } = result
 
             const minSeverity: SeverityLevel | undefined = options.onlyCritical
@@ -132,6 +133,7 @@ program
                     aggregateBoundaryViolations,
                     minSeverity,
                 )
+                secretViolations = grouper.filterBySeverity(secretViolations, minSeverity)
 
                 statsFormatter.displaySeverityFilterMessage(
                     options.onlyCritical,
@@ -245,6 +247,19 @@ program
                 )
             }
 
+            if (secretViolations.length > 0) {
+                console.log(
+                    `\n🔐 Found ${String(secretViolations.length)} hardcoded secret(s) - CRITICAL SECURITY RISK`,
+                )
+                outputFormatter.displayGroupedViolations(
+                    secretViolations,
+                    (sv, i) => {
+                        outputFormatter.formatSecretViolation(sv, i)
+                    },
+                    limit,
+                )
+            }
+
             if (options.hardcode && hardcodeViolations.length > 0) {
                 console.log(
                     `\n${CLI_MESSAGES.HARDCODE_VIOLATIONS_HEADER} ${String(hardcodeViolations.length)} ${CLI_LABELS.HARDCODE_VIOLATIONS}`,
@@ -267,7 +282,8 @@ program
                 entityExposureViolations.length +
                 dependencyDirectionViolations.length +
                 repositoryPatternViolations.length +
-                aggregateBoundaryViolations.length
+                aggregateBoundaryViolations.length +
+                secretViolations.length
 
             statsFormatter.displaySummary(totalIssues, options.verbose)
         } catch (error) {

packages/guardian/src/domain/constants/Messages.ts

@@ -60,3 +60,12 @@ export const AGGREGATE_VIOLATION_MESSAGES = {
     AVOID_DIRECT_REFERENCE: "3. Avoid direct entity references to maintain aggregate independence",
     MAINTAIN_INDEPENDENCE: "4. Each aggregate should be independently modifiable and deployable",
 }
+
+export const SECRET_VIOLATION_MESSAGES = {
+    USE_ENV_VARIABLES: "1. Use environment variables for sensitive data (process.env.API_KEY)",
+    USE_SECRET_MANAGER:
+        "2. Use secret management services (AWS Secrets Manager, HashiCorp Vault, etc.)",
+    NEVER_COMMIT_SECRETS: "3. Never commit secrets to version control",
+    ROTATE_IF_EXPOSED: "4. If secret was committed, rotate it immediately",
+    USE_GITIGNORE: "5. Add secret files to .gitignore (.env, credentials.json, etc.)",
+}

packages/guardian/src/domain/services/ISecretDetector.ts

@@ -0,0 +1,34 @@
+import { SecretViolation } from "../value-objects/SecretViolation"
+
+/**
+ * Interface for detecting hardcoded secrets in source code
+ *
+ * Detects sensitive data like API keys, tokens, passwords, and credentials
+ * that should never be hardcoded in source code. Uses industry-standard
+ * Secretlint library for pattern matching.
+ *
+ * All detected secrets are marked as CRITICAL severity violations.
+ *
+ * @example
+ * ```typescript
+ * const detector: ISecretDetector = new SecretDetector()
+ * const violations = await detector.detectAll(
+ *     'const AWS_KEY = "AKIA1234567890ABCDEF"',
+ *     'src/config/aws.ts'
+ * )
+ *
+ * violations.forEach(v => {
+ *     console.log(v.getMessage()) // "Hardcoded AWS Access Key detected"
+ * })
+ * ```
+ */
+export interface ISecretDetector {
+    /**
+     * Detect all types of hardcoded secrets in the provided code
+     *
+     * @param code - Source code to analyze
+     * @param filePath - Path to the file being analyzed
+     * @returns Array of secret violations found
+     */
+    detectAll(code: string, filePath: string): Promise<SecretViolation[]>
+}

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

@@ -0,0 +1,198 @@
+import { ValueObject } from "./ValueObject"
+import { SECRET_VIOLATION_MESSAGES } from "../constants/Messages"
+
+interface SecretViolationProps {
+    readonly file: string
+    readonly line: number
+    readonly column: number
+    readonly secretType: string
+    readonly matchedPattern: string
+}
+
+/**
+ * Represents a secret exposure violation in the codebase
+ *
+ * Secret violations occur when sensitive data like API keys, tokens, passwords,
+ * or credentials are hardcoded in the source code instead of being stored
+ * in secure environment variables or secret management systems.
+ *
+ * All secret violations are marked as CRITICAL severity because they represent
+ * serious security risks that could lead to unauthorized access, data breaches,
+ * or service compromise.
+ *
+ * @example
+ * ```typescript
+ * const violation = SecretViolation.create(
+ *     'src/config/aws.ts',
+ *     10,
+ *     15,
+ *     'AWS Access Key',
+ *     'AKIA1234567890ABCDEF'
+ * )
+ *
+ * console.log(violation.getMessage())
+ * // "Hardcoded AWS Access Key detected"
+ *
+ * console.log(violation.getSeverity())
+ * // "critical"
+ * ```
+ */
+export class SecretViolation extends ValueObject<SecretViolationProps> {
+    private constructor(props: SecretViolationProps) {
+        super(props)
+    }
+
+    public static create(
+        file: string,
+        line: number,
+        column: number,
+        secretType: string,
+        matchedPattern: string,
+    ): SecretViolation {
+        return new SecretViolation({
+            file,
+            line,
+            column,
+            secretType,
+            matchedPattern,
+        })
+    }
+
+    public get file(): string {
+        return this.props.file
+    }
+
+    public get line(): number {
+        return this.props.line
+    }
+
+    public get column(): number {
+        return this.props.column
+    }
+
+    public get secretType(): string {
+        return this.props.secretType
+    }
+
+    public get matchedPattern(): string {
+        return this.props.matchedPattern
+    }
+
+    public getMessage(): string {
+        return `Hardcoded ${this.props.secretType} detected`
+    }
+
+    public getSuggestion(): string {
+        const suggestions: string[] = [
+            SECRET_VIOLATION_MESSAGES.USE_ENV_VARIABLES,
+            SECRET_VIOLATION_MESSAGES.USE_SECRET_MANAGER,
+            SECRET_VIOLATION_MESSAGES.NEVER_COMMIT_SECRETS,
+            SECRET_VIOLATION_MESSAGES.ROTATE_IF_EXPOSED,
+            SECRET_VIOLATION_MESSAGES.USE_GITIGNORE,
+        ]
+
+        return suggestions.join("\n")
+    }
+
+    public getExampleFix(): string {
+        return this.getExampleFixForSecretType(this.props.secretType)
+    }
+
+    public getSeverity(): "critical" {
+        return "critical"
+    }
+
+    private getExampleFixForSecretType(secretType: string): string {
+        const lowerType = secretType.toLowerCase()
+
+        if (lowerType.includes("aws")) {
+            return `
+// ❌ Bad: Hardcoded AWS credentials
+const AWS_ACCESS_KEY_ID = "AKIA1234567890ABCDEF"
+const AWS_SECRET_ACCESS_KEY = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
+
+// ✅ Good: Use environment variables
+const AWS_ACCESS_KEY_ID = process.env.AWS_ACCESS_KEY_ID
+const AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET_ACCESS_KEY
+
+// ✅ Good: Use AWS SDK credentials provider
+import { fromEnv } from "@aws-sdk/credential-providers"
+const credentials = fromEnv()`
+        }
+
+        if (lowerType.includes("github")) {
+            return `
+// ❌ Bad: Hardcoded GitHub token
+const GITHUB_TOKEN = "ghp_1234567890abcdefghijklmnopqrstuv"
+
+// ✅ Good: Use environment variables
+const GITHUB_TOKEN = process.env.GITHUB_TOKEN
+
+// ✅ Good: GitHub Apps with temporary tokens
+// Use GitHub Apps for automated workflows instead of personal access tokens`
+        }
+
+        if (lowerType.includes("npm")) {
+            return `
+// ❌ Bad: Hardcoded NPM token in code
+const NPM_TOKEN = "npm_abc123xyz"
+
+// ✅ Good: Use .npmrc file (add to .gitignore)
+// .npmrc
+//registry.npmjs.org/:_authToken=\${NPM_TOKEN}
+
+// ✅ Good: Use environment variable
+const NPM_TOKEN = process.env.NPM_TOKEN`
+        }
+
+        if (lowerType.includes("ssh") || lowerType.includes("private key")) {
+            return `
+// ❌ Bad: Hardcoded SSH private key
+const privateKey = \`-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEA...\`
+
+// ✅ Good: Load from secure file (not in repository)
+import fs from "fs"
+const privateKey = fs.readFileSync(process.env.SSH_KEY_PATH, "utf-8")
+
+// ✅ Good: Use SSH agent
+// Configure SSH agent to handle keys securely`
+        }
+
+        if (lowerType.includes("slack")) {
+            return `
+// ❌ Bad: Hardcoded Slack token
+const SLACK_TOKEN = "xoxb-XXXX-XXXX-XXXX-example-token-here"
+
+// ✅ Good: Use environment variables
+const SLACK_TOKEN = process.env.SLACK_BOT_TOKEN
+
+// ✅ Good: Use OAuth flow for user tokens
+// Implement OAuth 2.0 flow instead of hardcoding tokens`
+        }
+
+        if (lowerType.includes("api key") || lowerType.includes("apikey")) {
+            return `
+// ❌ Bad: Hardcoded API key
+const API_KEY = "sk_live_XXXXXXXXXXXXXXXXXXXX_example_key"
+
+// ✅ Good: Use environment variables
+const API_KEY = process.env.API_KEY
+
+// ✅ Good: Use secret management service
+import { SecretsManager } from "aws-sdk"
+const secretsManager = new SecretsManager()
+const secret = await secretsManager.getSecretValue({ SecretId: "api-key" }).promise()`
+        }
+
+        return `
+// ❌ Bad: Hardcoded secret
+const SECRET = "hardcoded-secret-value"
+
+// ✅ Good: Use environment variables
+const SECRET = process.env.SECRET_KEY
+
+// ✅ Good: Use secret management
+// AWS Secrets Manager, HashiCorp Vault, Azure Key Vault, etc.`
+    }
+}

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

@@ -1,8 +1,9 @@
 import { IAggregateBoundaryDetector } from "../../domain/services/IAggregateBoundaryDetector"
 import { AggregateBoundaryViolation } from "../../domain/value-objects/AggregateBoundaryViolation"
 import { LAYERS } from "../../shared/constants/rules"
-import { IMPORT_PATTERNS } from "../constants/paths"
+import { AggregatePathAnalyzer } from "../strategies/AggregatePathAnalyzer"
-import { DDD_FOLDER_NAMES } from "../constants/detectorPatterns"
+import { FolderRegistry } from "../strategies/FolderRegistry"
+import { ImportValidator } from "../strategies/ImportValidator"
 
 /**
  * Detects aggregate boundary violations in Domain-Driven Design
@@ -38,42 +39,15 @@ import { DDD_FOLDER_NAMES } from "../constants/detectorPatterns"
  * ```
  */
 export class AggregateBoundaryDetector implements IAggregateBoundaryDetector {
-    private readonly entityFolderNames = new Set<string>([
+    private readonly folderRegistry: FolderRegistry
-        DDD_FOLDER_NAMES.ENTITIES,
+    private readonly pathAnalyzer: AggregatePathAnalyzer
-        DDD_FOLDER_NAMES.AGGREGATES,
+    private readonly importValidator: ImportValidator
-    ])
+
-    private readonly valueObjectFolderNames = new Set<string>([
+    constructor() {
-        DDD_FOLDER_NAMES.VALUE_OBJECTS,
+        this.folderRegistry = new FolderRegistry()
-        DDD_FOLDER_NAMES.VO,
+        this.pathAnalyzer = new AggregatePathAnalyzer(this.folderRegistry)
-    ])
+        this.importValidator = new ImportValidator(this.folderRegistry, this.pathAnalyzer)
-    private readonly allowedFolderNames = new Set<string>([
+    }
-        DDD_FOLDER_NAMES.VALUE_OBJECTS,
-        DDD_FOLDER_NAMES.VO,
-        DDD_FOLDER_NAMES.EVENTS,
-        DDD_FOLDER_NAMES.DOMAIN_EVENTS,
-        DDD_FOLDER_NAMES.REPOSITORIES,
-        DDD_FOLDER_NAMES.SERVICES,
-        DDD_FOLDER_NAMES.SPECIFICATIONS,
-        DDD_FOLDER_NAMES.ERRORS,
-        DDD_FOLDER_NAMES.EXCEPTIONS,
-    ])
-    private readonly nonAggregateFolderNames = new Set<string>([
-        DDD_FOLDER_NAMES.VALUE_OBJECTS,
-        DDD_FOLDER_NAMES.VO,
-        DDD_FOLDER_NAMES.EVENTS,
-        DDD_FOLDER_NAMES.DOMAIN_EVENTS,
-        DDD_FOLDER_NAMES.REPOSITORIES,
-        DDD_FOLDER_NAMES.SERVICES,
-        DDD_FOLDER_NAMES.SPECIFICATIONS,
-        DDD_FOLDER_NAMES.ENTITIES,
-        DDD_FOLDER_NAMES.CONSTANTS,
-        DDD_FOLDER_NAMES.SHARED,
-        DDD_FOLDER_NAMES.FACTORIES,
-        DDD_FOLDER_NAMES.PORTS,
-        DDD_FOLDER_NAMES.INTERFACES,
-        DDD_FOLDER_NAMES.ERRORS,
-        DDD_FOLDER_NAMES.EXCEPTIONS,
-    ])
 
     /**
      * Detects aggregate boundary violations in the given code
@@ -95,41 +69,12 @@ export class AggregateBoundaryDetector implements IAggregateBoundaryDetector {
             return []
         }
 
-        const currentAggregate = this.extractAggregateFromPath(filePath)
+        const currentAggregate = this.pathAnalyzer.extractAggregateFromPath(filePath)
         if (!currentAggregate) {
             return []
         }
 
-        const violations: AggregateBoundaryViolation[] = []
+        return this.analyzeImports(code, filePath, currentAggregate)
-        const lines = code.split("\n")
-
-        for (let i = 0; i < lines.length; i++) {
-            const line = lines[i]
-            const lineNumber = i + 1
-
-            const imports = this.extractImports(line)
-            for (const importPath of imports) {
-                if (this.isAggregateBoundaryViolation(importPath, currentAggregate)) {
-                    const targetAggregate = this.extractAggregateFromImport(importPath)
-                    const entityName = this.extractEntityName(importPath)
-
-                    if (targetAggregate && entityName) {
-                        violations.push(
-                            AggregateBoundaryViolation.create(
-                                currentAggregate,
-                                targetAggregate,
-                                entityName,
-                                importPath,
-                                filePath,
-                                lineNumber,
-                            ),
-                        )
-                    }
-                }
-            }
-        }
-
-        return violations
     }
 
     /**
@@ -144,37 +89,7 @@ export class AggregateBoundaryDetector implements IAggregateBoundaryDetector {
      * @returns The aggregate name if found, undefined otherwise
      */
     public extractAggregateFromPath(filePath: string): string | undefined {
-        const normalizedPath = filePath.toLowerCase().replace(/\\/g, "/")
+        return this.pathAnalyzer.extractAggregateFromPath(filePath)
-
-        const domainMatch = /(?:^|\/)(domain)\//.exec(normalizedPath)
-        if (!domainMatch) {
-            return undefined
-        }
-
-        const domainEndIndex = domainMatch.index + domainMatch[0].length
-        const pathAfterDomain = normalizedPath.substring(domainEndIndex)
-        const segments = pathAfterDomain.split("/").filter(Boolean)
-
-        if (segments.length < 2) {
-            return undefined
-        }
-
-        if (this.entityFolderNames.has(segments[0])) {
-            if (segments.length < 3) {
-                return undefined
-            }
-            const aggregate = segments[1]
-            if (this.nonAggregateFolderNames.has(aggregate)) {
-                return undefined
-            }
-            return aggregate
-        }
-
-        const aggregate = segments[0]
-        if (this.nonAggregateFolderNames.has(aggregate)) {
-            return undefined
-        }
-        return aggregate
     }
 
     /**
@@ -185,197 +100,68 @@ export class AggregateBoundaryDetector implements IAggregateBoundaryDetector {
      * @returns True if the import crosses aggregate boundaries inappropriately
      */
     public isAggregateBoundaryViolation(importPath: string, currentAggregate: string): boolean {
-        const normalizedPath = importPath.replace(IMPORT_PATTERNS.QUOTE, "").toLowerCase()
+        return this.importValidator.isViolation(importPath, currentAggregate)
-
-        if (!normalizedPath.includes("/")) {
-            return false
-        }
-
-        if (!normalizedPath.startsWith(".") && !normalizedPath.startsWith("/")) {
-            return false
-        }
-
-        // Check if import stays within the same bounded context
-        if (this.isInternalBoundedContextImport(normalizedPath)) {
-            return false
-        }
-
-        const targetAggregate = this.extractAggregateFromImport(normalizedPath)
-        if (!targetAggregate || targetAggregate === currentAggregate) {
-            return false
-        }
-
-        if (this.isAllowedImport(normalizedPath)) {
-            return false
-        }
-
-        return this.seemsLikeEntityImport(normalizedPath)
     }
 
     /**
-     * Checks if the import is internal to the same bounded context
+     * Analyzes all imports in code and detects violations
-     *
-     * An import like "../aggregates/Entity" from "repositories/Repo" stays within
-     * the same bounded context (one level up goes to the bounded context root).
-     *
-     * An import like "../../other-context/Entity" crosses bounded context boundaries.
      */
-    private isInternalBoundedContextImport(normalizedPath: string): boolean {
+    private analyzeImports(
-        const parts = normalizedPath.split("/")
+        code: string,
-        const dotDotCount = parts.filter((p) => p === "..").length
+        filePath: string,
+        currentAggregate: string,
+    ): AggregateBoundaryViolation[] {
+        const violations: AggregateBoundaryViolation[] = []
+        const lines = code.split("\n")
 
-        /*
+        for (let i = 0; i < lines.length; i++) {
-         * If only one ".." and path goes into aggregates/entities folder,
+            const line = lines[i]
-         * it's likely an internal import within the same bounded context
+            const lineNumber = i + 1
-         */
+
-        if (dotDotCount === 1) {
+            const imports = this.importValidator.extractImports(line)
-            const nonDotParts = parts.filter((p) => p !== ".." && p !== ".")
+            for (const importPath of imports) {
-            if (nonDotParts.length >= 1) {
+                const violation = this.checkImport(
-                const firstFolder = nonDotParts[0]
+                    importPath,
-                // Importing from aggregates/entities within same bounded context is allowed
+                    currentAggregate,
-                if (this.entityFolderNames.has(firstFolder)) {
+                    filePath,
-                    return true
+                    lineNumber,
+                )
+                if (violation) {
+                    violations.push(violation)
                 }
             }
         }
 
-        return false
+        return violations
     }
 
     /**
-     * Checks if the import path is from an allowed folder (value-objects, events, etc.)
+     * Checks a single import for boundary violations
      */
-    private isAllowedImport(normalizedPath: string): boolean {
+    private checkImport(
-        for (const folderName of this.allowedFolderNames) {
+        importPath: string,
-            if (normalizedPath.includes(`/${folderName}/`)) {
+        currentAggregate: string,
-                return true
+        filePath: string,
-            }
+        lineNumber: number,
-        }
+    ): AggregateBoundaryViolation | undefined {
-        return false
+        if (!this.importValidator.isViolation(importPath, currentAggregate)) {
-    }
-
-    /**
-     * Checks if the import seems to be an entity (not a value object, event, etc.)
-     *
-     * Note: normalizedPath is already lowercased, so we check if the first character
-     * is a letter (indicating it was likely PascalCase originally)
-     */
-    private seemsLikeEntityImport(normalizedPath: string): boolean {
-        const pathParts = normalizedPath.split("/")
-        const lastPart = pathParts[pathParts.length - 1]
-
-        if (!lastPart) {
-            return false
-        }
-
-        const filename = lastPart.replace(/\.(ts|js)$/, "")
-
-        if (filename.length > 0 && /^[a-z][a-z]/.exec(filename)) {
-            return true
-        }
-
-        return false
-    }
-
-    /**
-     * Extracts the aggregate name from an import path
-     *
-     * Handles both absolute and relative paths:
-     * - ../user/User → user
-     * - ../../domain/user/User → user
-     * - ../user/value-objects/UserId → user (but filtered as value object)
-     */
-    private extractAggregateFromImport(importPath: string): string | undefined {
-        const normalizedPath = importPath.replace(IMPORT_PATTERNS.QUOTE, "").toLowerCase()
-
-        const segments = normalizedPath.split("/").filter((seg) => seg !== ".." && seg !== ".")
-
-        if (segments.length === 0) {
             return undefined
         }
 
-        for (let i = 0; i < segments.length; i++) {
+        const targetAggregate = this.pathAnalyzer.extractAggregateFromImport(importPath)
-            if (
+        const entityName = this.pathAnalyzer.extractEntityName(importPath)
-                segments[i] === DDD_FOLDER_NAMES.DOMAIN ||
-                segments[i] === DDD_FOLDER_NAMES.AGGREGATES
-            ) {
-                if (i + 1 < segments.length) {
-                    if (
-                        this.entityFolderNames.has(segments[i + 1]) ||
-                        segments[i + 1] === DDD_FOLDER_NAMES.AGGREGATES
-                    ) {
-                        if (i + 2 < segments.length) {
-                            return segments[i + 2]
-                        }
-                    } else {
-                        return segments[i + 1]
-                    }
-                }
-            }
-        }
 
-        if (segments.length >= 2) {
+        if (targetAggregate && entityName) {
-            const secondLastSegment = segments[segments.length - 2]
+            return AggregateBoundaryViolation.create(
-
+                currentAggregate,
-            if (
+                targetAggregate,
-                !this.entityFolderNames.has(secondLastSegment) &&
+                entityName,
-                !this.valueObjectFolderNames.has(secondLastSegment) &&
+                importPath,
-                !this.allowedFolderNames.has(secondLastSegment) &&
+                filePath,
-                secondLastSegment !== DDD_FOLDER_NAMES.DOMAIN
+                lineNumber,
-            ) {
+            )
-                return secondLastSegment
-            }
-        }
-
-        if (segments.length === 1) {
-            return undefined
         }
 
         return undefined
     }
-
-    /**
-     * Extracts the entity name from an import path
-     */
-    private extractEntityName(importPath: string): string | undefined {
-        const normalizedPath = importPath.replace(IMPORT_PATTERNS.QUOTE, "")
-        const segments = normalizedPath.split("/")
-        const lastSegment = segments[segments.length - 1]
-
-        if (lastSegment) {
-            return lastSegment.replace(/\.(ts|js)$/, "")
-        }
-
-        return undefined
-    }
-
-    /**
-     * Extracts import paths from a line of code
-     *
-     * Handles various import statement formats:
-     * - import { X } from 'path'
-     * - import X from 'path'
-     * - import * as X from 'path'
-     * - const X = require('path')
-     *
-     * @param line - A line of code to analyze
-     * @returns Array of import paths found in the line
-     */
-    private extractImports(line: string): string[] {
-        const imports: string[] = []
-
-        let match = IMPORT_PATTERNS.ES_IMPORT.exec(line)
-        while (match) {
-            imports.push(match[1])
-            match = IMPORT_PATTERNS.ES_IMPORT.exec(line)
-        }
-
-        match = IMPORT_PATTERNS.REQUIRE.exec(line)
-        while (match) {
-            imports.push(match[1])
-            match = IMPORT_PATTERNS.REQUIRE.exec(line)
-        }
-
-        return imports
-    }
 }

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

@@ -1,7 +1,10 @@
 import { IHardcodeDetector } from "../../domain/services/IHardcodeDetector"
 import { HardcodedValue } from "../../domain/value-objects/HardcodedValue"
-import { ALLOWED_NUMBERS, CODE_PATTERNS, DETECTION_KEYWORDS } from "../constants/defaults"
+import { BraceTracker } from "../strategies/BraceTracker"
-import { HARDCODE_TYPES } from "../../shared/constants"
+import { ConstantsFileChecker } from "../strategies/ConstantsFileChecker"
+import { ExportConstantAnalyzer } from "../strategies/ExportConstantAnalyzer"
+import { MagicNumberMatcher } from "../strategies/MagicNumberMatcher"
+import { MagicStringMatcher } from "../strategies/MagicStringMatcher"
 
 /**
  * Detects hardcoded values (magic numbers and strings) in TypeScript/JavaScript code
@@ -22,22 +25,19 @@ import { HARDCODE_TYPES } from "../../shared/constants"
  * ```
  */
 export class HardcodeDetector implements IHardcodeDetector {
-    private readonly ALLOWED_NUMBERS = ALLOWED_NUMBERS
+    private readonly constantsChecker: ConstantsFileChecker
+    private readonly braceTracker: BraceTracker
+    private readonly exportAnalyzer: ExportConstantAnalyzer
+    private readonly numberMatcher: MagicNumberMatcher
+    private readonly stringMatcher: MagicStringMatcher
 
-    private readonly ALLOWED_STRING_PATTERNS = [/^[a-z]$/i, /^\/$/, /^\\$/, /^\s+$/, /^,$/, /^\.$/]
+    constructor() {
-
+        this.constantsChecker = new ConstantsFileChecker()
-    /**
+        this.braceTracker = new BraceTracker()
-     * Patterns to detect TypeScript type contexts where strings should be ignored
+        this.exportAnalyzer = new ExportConstantAnalyzer(this.braceTracker)
-     */
+        this.numberMatcher = new MagicNumberMatcher(this.exportAnalyzer)
-    private readonly TYPE_CONTEXT_PATTERNS = [
+        this.stringMatcher = new MagicStringMatcher(this.exportAnalyzer)
-        /^\s*type\s+\w+\s*=/i, // type Foo = ...
+    }
-        /^\s*interface\s+\w+/i, // interface Foo { ... }
-        /^\s*\w+\s*:\s*['"`]/, // property: 'value' (in type or interface)
-        /\s+as\s+['"`]/, // ... as 'type'
-        /Record<.*,\s*import\(/, // Record with import type
-        /typeof\s+\w+\s*===\s*['"`]/, // typeof x === 'string'
-        /['"`]\s*===\s*typeof\s+\w+/, // 'string' === typeof x
-    ]
 
     /**
      * Detects all hardcoded values (both numbers and strings) in the given code
@@ -47,413 +47,43 @@ export class HardcodeDetector implements IHardcodeDetector {
      * @returns Array of detected hardcoded values with suggestions
      */
     public detectAll(code: string, filePath: string): HardcodedValue[] {
-        if (this.isConstantsFile(filePath)) {
+        if (this.constantsChecker.isConstantsFile(filePath)) {
             return []
         }
-        const magicNumbers = this.detectMagicNumbers(code, filePath)
+
-        const magicStrings = this.detectMagicStrings(code, filePath)
+        const magicNumbers = this.numberMatcher.detect(code)
+        const magicStrings = this.stringMatcher.detect(code)
+
         return [...magicNumbers, ...magicStrings]
     }
 
     /**
-     * Check if a file is a constants definition file or DI tokens file
+     * Detects magic numbers in code
-     */
-    private isConstantsFile(filePath: string): boolean {
-        const _fileName = filePath.split("/").pop() ?? ""
-        const constantsPatterns = [
-            /^constants?\.(ts|js)$/i,
-            /constants?\/.*\.(ts|js)$/i,
-            /\/(constants|config|settings|defaults|tokens)\.ts$/i,
-            /\/di\/tokens\.(ts|js)$/i,
-        ]
-        return constantsPatterns.some((pattern) => pattern.test(filePath))
-    }
-
-    /**
-     * Check if a line is inside an exported constant definition
-     */
-    private isInExportedConstant(lines: string[], lineIndex: number): boolean {
-        const currentLineTrimmed = lines[lineIndex].trim()
-
-        if (this.isSingleLineExportConst(currentLineTrimmed)) {
-            return true
-        }
-
-        const exportConstStart = this.findExportConstStart(lines, lineIndex)
-        if (exportConstStart === -1) {
-            return false
-        }
-
-        const { braces, brackets } = this.countUnclosedBraces(lines, exportConstStart, lineIndex)
-        return braces > 0 || brackets > 0
-    }
-
-    /**
-     * Check if a line is a single-line export const declaration
-     */
-    private isSingleLineExportConst(line: string): boolean {
-        if (!line.startsWith(CODE_PATTERNS.EXPORT_CONST)) {
-            return false
-        }
-
-        const hasObjectOrArray =
-            line.includes(CODE_PATTERNS.OBJECT_START) || line.includes(CODE_PATTERNS.ARRAY_START)
-
-        if (hasObjectOrArray) {
-            const hasAsConstEnding =
-                line.includes(CODE_PATTERNS.AS_CONST_OBJECT) ||
-                line.includes(CODE_PATTERNS.AS_CONST_ARRAY) ||
-                line.includes(CODE_PATTERNS.AS_CONST_END_SEMICOLON_OBJECT) ||
-                line.includes(CODE_PATTERNS.AS_CONST_END_SEMICOLON_ARRAY)
-
-            return hasAsConstEnding
-        }
-
-        return line.includes(CODE_PATTERNS.AS_CONST)
-    }
-
-    /**
-     * Find the starting line of an export const declaration
-     */
-    private findExportConstStart(lines: string[], lineIndex: number): number {
-        for (let currentLine = lineIndex; currentLine >= 0; currentLine--) {
-            const trimmed = lines[currentLine].trim()
-
-            const isExportConst =
-                trimmed.startsWith(CODE_PATTERNS.EXPORT_CONST) &&
-                (trimmed.includes(CODE_PATTERNS.OBJECT_START) ||
-                    trimmed.includes(CODE_PATTERNS.ARRAY_START))
-
-            if (isExportConst) {
-                return currentLine
-            }
-
-            const isTopLevelStatement =
-                currentLine < lineIndex &&
-                (trimmed.startsWith(CODE_PATTERNS.EXPORT) ||
-                    trimmed.startsWith(CODE_PATTERNS.IMPORT))
-
-            if (isTopLevelStatement) {
-                break
-            }
-        }
-
-        return -1
-    }
-
-    /**
-     * Count unclosed braces and brackets between two line indices
-     */
-    private countUnclosedBraces(
-        lines: string[],
-        startLine: number,
-        endLine: number,
-    ): { braces: number; brackets: number } {
-        let braces = 0
-        let brackets = 0
-
-        for (let i = startLine; i <= endLine; i++) {
-            const line = lines[i]
-            let inString = false
-            let stringChar = ""
-
-            for (let j = 0; j < line.length; j++) {
-                const char = line[j]
-                const prevChar = j > 0 ? line[j - 1] : ""
-
-                if ((char === "'" || char === '"' || char === "`") && prevChar !== "\\") {
-                    if (!inString) {
-                        inString = true
-                        stringChar = char
-                    } else if (char === stringChar) {
-                        inString = false
-                        stringChar = ""
-                    }
-                }
-
-                if (!inString) {
-                    if (char === "{") {
-                        braces++
-                    } else if (char === "}") {
-                        braces--
-                    } else if (char === "[") {
-                        brackets++
-                    } else if (char === "]") {
-                        brackets--
-                    }
-                }
-            }
-        }
-
-        return { braces, brackets }
-    }
-
-    /**
-     * Detects magic numbers in code (timeouts, ports, limits, retries, etc.)
-     *
-     * Skips allowed numbers (-1, 0, 1, 2, 10, 100, 1000) and values in exported constants
      *
      * @param code - Source code to analyze
-     * @param _filePath - File path (currently unused, reserved for future use)
+     * @param filePath - File path (used for constants file check)
      * @returns Array of detected magic numbers
      */
-    public detectMagicNumbers(code: string, _filePath: string): HardcodedValue[] {
+    public detectMagicNumbers(code: string, filePath: string): HardcodedValue[] {
-        const results: HardcodedValue[] = []
+        if (this.constantsChecker.isConstantsFile(filePath)) {
-        const lines = code.split("\n")
+            return []
-
-        const numberPatterns = [
-            /(?:setTimeout|setInterval)\s*\(\s*[^,]+,\s*(\d+)/g,
-            /(?:maxRetries|retries|attempts)\s*[=:]\s*(\d+)/gi,
-            /(?:limit|max|min)\s*[=:]\s*(\d+)/gi,
-            /(?:port|PORT)\s*[=:]\s*(\d+)/g,
-            /(?:delay|timeout|TIMEOUT)\s*[=:]\s*(\d+)/gi,
-        ]
-
-        lines.forEach((line, lineIndex) => {
-            if (line.trim().startsWith("//") || line.trim().startsWith("*")) {
-                return
         }
 
-            // Skip lines inside exported constants
+        return this.numberMatcher.detect(code)
-            if (this.isInExportedConstant(lines, lineIndex)) {
-                return
-            }
-
-            numberPatterns.forEach((pattern) => {
-                let match
-                const regex = new RegExp(pattern)
-
-                while ((match = regex.exec(line)) !== null) {
-                    const value = parseInt(match[1], 10)
-
-                    if (!this.ALLOWED_NUMBERS.has(value)) {
-                        results.push(
-                            HardcodedValue.create(
-                                value,
-                                HARDCODE_TYPES.MAGIC_NUMBER,
-                                lineIndex + 1,
-                                match.index,
-                                line.trim(),
-                            ),
-                        )
-                    }
-                }
-            })
-
-            const genericNumberRegex = /\b(\d{3,})\b/g
-            let match
-
-            while ((match = genericNumberRegex.exec(line)) !== null) {
-                const value = parseInt(match[1], 10)
-
-                if (
-                    !this.ALLOWED_NUMBERS.has(value) &&
-                    !this.isInComment(line, match.index) &&
-                    !this.isInString(line, match.index)
-                ) {
-                    const context = this.extractContext(line, match.index)
-                    if (this.looksLikeMagicNumber(context)) {
-                        results.push(
-                            HardcodedValue.create(
-                                value,
-                                HARDCODE_TYPES.MAGIC_NUMBER,
-                                lineIndex + 1,
-                                match.index,
-                                line.trim(),
-                            ),
-                        )
-                    }
-                }
-            }
-        })
-
-        return results
     }
 
     /**
-     * Detects magic strings in code (URLs, connection strings, error messages, etc.)
+     * Detects magic strings in code
-     *
-     * Skips short strings (≤3 chars), console logs, test descriptions, imports,
-     * and values in exported constants
      *
      * @param code - Source code to analyze
-     * @param _filePath - File path (currently unused, reserved for future use)
+     * @param filePath - File path (used for constants file check)
      * @returns Array of detected magic strings
      */
-    public detectMagicStrings(code: string, _filePath: string): HardcodedValue[] {
+    public detectMagicStrings(code: string, filePath: string): HardcodedValue[] {
-        const results: HardcodedValue[] = []
+        if (this.constantsChecker.isConstantsFile(filePath)) {
-        const lines = code.split("\n")
+            return []
-
-        const stringRegex = /(['"`])(?:(?!\1).)+\1/g
-
-        lines.forEach((line, lineIndex) => {
-            if (
-                line.trim().startsWith("//") ||
-                line.trim().startsWith("*") ||
-                line.includes("import ") ||
-                line.includes("from ")
-            ) {
-                return
         }
 
-            // Skip lines inside exported constants
+        return this.stringMatcher.detect(code)
-            if (this.isInExportedConstant(lines, lineIndex)) {
-                return
-            }
-
-            let match
-            const regex = new RegExp(stringRegex)
-
-            while ((match = regex.exec(line)) !== null) {
-                const fullMatch = match[0]
-                const value = fullMatch.slice(1, -1)
-
-                // Skip template literals (backtick strings with ${} interpolation)
-                if (fullMatch.startsWith("`") || value.includes("${")) {
-                    continue
-                }
-
-                if (!this.isAllowedString(value) && this.looksLikeMagicString(line, value)) {
-                    results.push(
-                        HardcodedValue.create(
-                            value,
-                            HARDCODE_TYPES.MAGIC_STRING,
-                            lineIndex + 1,
-                            match.index,
-                            line.trim(),
-                        ),
-                    )
-                }
-            }
-        })
-
-        return results
-    }
-
-    private isAllowedString(str: string): boolean {
-        if (str.length <= 1) {
-            return true
-        }
-
-        return this.ALLOWED_STRING_PATTERNS.some((pattern) => pattern.test(str))
-    }
-
-    private looksLikeMagicString(line: string, value: string): boolean {
-        const lowerLine = line.toLowerCase()
-
-        if (
-            lowerLine.includes(DETECTION_KEYWORDS.TEST) ||
-            lowerLine.includes(DETECTION_KEYWORDS.DESCRIBE)
-        ) {
-            return false
-        }
-
-        if (
-            lowerLine.includes(DETECTION_KEYWORDS.CONSOLE_LOG) ||
-            lowerLine.includes(DETECTION_KEYWORDS.CONSOLE_ERROR)
-        ) {
-            return false
-        }
-
-        if (this.isInTypeContext(line)) {
-            return false
-        }
-
-        if (this.isInSymbolCall(line, value)) {
-            return false
-        }
-
-        if (this.isInImportCall(line, value)) {
-            return false
-        }
-
-        if (value.includes(DETECTION_KEYWORDS.HTTP) || value.includes(DETECTION_KEYWORDS.API)) {
-            return true
-        }
-
-        if (/^\d{2,}$/.test(value)) {
-            return false
-        }
-
-        return value.length > 3
-    }
-
-    private looksLikeMagicNumber(context: string): boolean {
-        const lowerContext = context.toLowerCase()
-
-        const configKeywords = [
-            DETECTION_KEYWORDS.TIMEOUT,
-            DETECTION_KEYWORDS.DELAY,
-            DETECTION_KEYWORDS.RETRY,
-            DETECTION_KEYWORDS.LIMIT,
-            DETECTION_KEYWORDS.MAX,
-            DETECTION_KEYWORDS.MIN,
-            DETECTION_KEYWORDS.PORT,
-            DETECTION_KEYWORDS.INTERVAL,
-        ]
-
-        return configKeywords.some((keyword) => lowerContext.includes(keyword))
-    }
-
-    private isInComment(line: string, index: number): boolean {
-        const beforeIndex = line.substring(0, index)
-        return beforeIndex.includes("//") || beforeIndex.includes("/*")
-    }
-
-    private isInString(line: string, index: number): boolean {
-        const beforeIndex = line.substring(0, index)
-        const singleQuotes = (beforeIndex.match(/'/g) ?? []).length
-        const doubleQuotes = (beforeIndex.match(/"/g) ?? []).length
-        const backticks = (beforeIndex.match(/`/g) ?? []).length
-
-        return singleQuotes % 2 !== 0 || doubleQuotes % 2 !== 0 || backticks % 2 !== 0
-    }
-
-    private extractContext(line: string, index: number): string {
-        const start = Math.max(0, index - 30)
-        const end = Math.min(line.length, index + 30)
-        return line.substring(start, end)
-    }
-
-    /**
-     * Check if a line is in a TypeScript type definition context
-     * Examples:
-     * - type Foo = 'a' | 'b'
-     * - interface Bar { prop: 'value' }
-     * - Record<X, import('path')>
-     * - ... as 'type'
-     */
-    private isInTypeContext(line: string): boolean {
-        const trimmedLine = line.trim()
-
-        if (this.TYPE_CONTEXT_PATTERNS.some((pattern) => pattern.test(trimmedLine))) {
-            return true
-        }
-
-        if (trimmedLine.includes("|") && /['"`][^'"`]+['"`]\s*\|/.test(trimmedLine)) {
-            return true
-        }
-
-        return false
-    }
-
-    /**
-     * Check if a string is inside a Symbol() call
-     * Example: Symbol('TOKEN_NAME')
-     */
-    private isInSymbolCall(line: string, stringValue: string): boolean {
-        const symbolPattern = new RegExp(
-            `Symbol\\s*\\(\\s*['"\`]${stringValue.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}['"\`]\\s*\\)`,
-        )
-        return symbolPattern.test(line)
-    }
-
-    /**
-     * Check if a string is inside an import() call
-     * Example: import('../../path/to/module.js')
-     */
-    private isInImportCall(line: string, stringValue: string): boolean {
-        const importPattern = /import\s*\(\s*['"`][^'"`]+['"`]\s*\)/
-        return importPattern.test(line) && line.includes(stringValue)
     }
 }

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

@@ -1,9 +1,9 @@
 import { IRepositoryPatternDetector } from "../../domain/services/RepositoryPatternDetectorService"
 import { RepositoryViolation } from "../../domain/value-objects/RepositoryViolation"
-import { LAYERS, REPOSITORY_VIOLATION_TYPES } from "../../shared/constants/rules"
+import { OrmTypeMatcher } from "../strategies/OrmTypeMatcher"
-import { ORM_QUERY_METHODS } from "../constants/orm-methods"
+import { MethodNameValidator } from "../strategies/MethodNameValidator"
-import { REPOSITORY_PATTERN_MESSAGES } from "../../domain/constants/Messages"
+import { RepositoryFileAnalyzer } from "../strategies/RepositoryFileAnalyzer"
-import { REPOSITORY_METHOD_SUGGESTIONS } from "../constants/detectorPatterns"
+import { RepositoryViolationDetector } from "../strategies/RepositoryViolationDetector"
 
 /**
  * Detects Repository Pattern violations in the codebase
@@ -36,84 +36,20 @@ import { REPOSITORY_METHOD_SUGGESTIONS } from "../constants/detectorPatterns"
  * ```
  */
 export class RepositoryPatternDetector implements IRepositoryPatternDetector {
-    private readonly ormTypePatterns = [
+    private readonly ormMatcher: OrmTypeMatcher
-        /Prisma\./,
+    private readonly methodValidator: MethodNameValidator
-        /PrismaClient/,
+    private readonly fileAnalyzer: RepositoryFileAnalyzer
-        /TypeORM/,
+    private readonly violationDetector: RepositoryViolationDetector
-        /@Entity/,
-        /@Column/,
-        /@PrimaryColumn/,
-        /@PrimaryGeneratedColumn/,
-        /@ManyToOne/,
-        /@OneToMany/,
-        /@ManyToMany/,
-        /@JoinColumn/,
-        /@JoinTable/,
-        /Mongoose\./,
-        /Schema/,
-        /Model</,
-        /Document/,
-        /Sequelize\./,
-        /DataTypes\./,
-        /FindOptions/,
-        /WhereOptions/,
-        /IncludeOptions/,
-        /QueryInterface/,
-        /MikroORM/,
-        /EntityManager/,
-        /EntityRepository/,
-        /Collection</,
-    ]
 
-    private readonly technicalMethodNames = ORM_QUERY_METHODS
+    constructor() {
-
+        this.ormMatcher = new OrmTypeMatcher()
-    private readonly domainMethodPatterns = [
+        this.methodValidator = new MethodNameValidator(this.ormMatcher)
-        /^findBy[A-Z]/,
+        this.fileAnalyzer = new RepositoryFileAnalyzer()
-        /^findAll$/,
+        this.violationDetector = new RepositoryViolationDetector(
-        /^find[A-Z]/,
+            this.ormMatcher,
-        /^save$/,
+            this.methodValidator,
-        /^saveAll$/,
+        )
-        /^create$/,
+    }
-        /^update$/,
-        /^delete$/,
-        /^deleteBy[A-Z]/,
-        /^deleteAll$/,
-        /^remove$/,
-        /^removeBy[A-Z]/,
-        /^removeAll$/,
-        /^add$/,
-        /^add[A-Z]/,
-        /^get[A-Z]/,
-        /^getAll$/,
-        /^search/,
-        /^list/,
-        /^has[A-Z]/,
-        /^is[A-Z]/,
-        /^exists$/,
-        /^exists[A-Z]/,
-        /^existsBy[A-Z]/,
-        /^clear[A-Z]/,
-        /^clearAll$/,
-        /^store[A-Z]/,
-        /^initialize$/,
-        /^initializeCollection$/,
-        /^close$/,
-        /^connect$/,
-        /^disconnect$/,
-        /^count$/,
-        /^countBy[A-Z]/,
-    ]
-
-    private readonly concreteRepositoryPatterns = [
-        /PrismaUserRepository/,
-        /MongoUserRepository/,
-        /TypeOrmUserRepository/,
-        /SequelizeUserRepository/,
-        /InMemoryUserRepository/,
-        /PostgresUserRepository/,
-        /MySqlUserRepository/,
-        /Repository(?!Interface)/,
-    ]
 
     /**
      * Detects all Repository Pattern violations in the given code
@@ -125,14 +61,16 @@ export class RepositoryPatternDetector implements IRepositoryPatternDetector {
     ): RepositoryViolation[] {
         const violations: RepositoryViolation[] = []
 
-        if (this.isRepositoryInterface(filePath, layer)) {
+        if (this.fileAnalyzer.isRepositoryInterface(filePath, layer)) {
-            violations.push(...this.detectOrmTypesInInterface(code, filePath, layer))
+            violations.push(...this.violationDetector.detectOrmTypes(code, filePath, layer))
-            violations.push(...this.detectNonDomainMethodNames(code, filePath, layer))
+            violations.push(...this.violationDetector.detectNonDomainMethods(code, filePath, layer))
         }
 
-        if (this.isUseCase(filePath, layer)) {
+        if (this.fileAnalyzer.isUseCase(filePath, layer)) {
-            violations.push(...this.detectConcreteRepositoryUsage(code, filePath, layer))
+            violations.push(
-            violations.push(...this.detectNewRepositoryInstantiation(code, filePath, layer))
+                ...this.violationDetector.detectConcreteRepositoryUsage(code, filePath, layer),
+            )
+            violations.push(...this.violationDetector.detectNewInstantiation(code, filePath, layer))
         }
 
         return violations
@@ -142,338 +80,27 @@ export class RepositoryPatternDetector implements IRepositoryPatternDetector {
      * Checks if a type is an ORM-specific type
      */
     public isOrmType(typeName: string): boolean {
-        return this.ormTypePatterns.some((pattern) => pattern.test(typeName))
+        return this.ormMatcher.isOrmType(typeName)
     }
 
     /**
      * Checks if a method name follows domain language conventions
      */
     public isDomainMethodName(methodName: string): boolean {
-        if ((this.technicalMethodNames as readonly string[]).includes(methodName)) {
+        return this.methodValidator.isDomainMethodName(methodName)
-            return false
-        }
-
-        return this.domainMethodPatterns.some((pattern) => pattern.test(methodName))
     }
 
     /**
      * Checks if a file is a repository interface
      */
     public isRepositoryInterface(filePath: string, layer: string | undefined): boolean {
-        if (layer !== LAYERS.DOMAIN) {
+        return this.fileAnalyzer.isRepositoryInterface(filePath, layer)
-            return false
-        }
-
-        return /I[A-Z]\w*Repository\.ts$/.test(filePath) && /repositories?\//.test(filePath)
     }
 
     /**
      * Checks if a file is a use case
      */
     public isUseCase(filePath: string, layer: string | undefined): boolean {
-        if (layer !== LAYERS.APPLICATION) {
+        return this.fileAnalyzer.isUseCase(filePath, layer)
-            return false
-        }
-
-        return /use-cases?\//.test(filePath) && /[A-Z][a-z]+[A-Z]\w*\.ts$/.test(filePath)
-    }
-
-    /**
-     * Detects ORM-specific types in repository interfaces
-     */
-    private detectOrmTypesInInterface(
-        code: string,
-        filePath: string,
-        layer: string | undefined,
-    ): RepositoryViolation[] {
-        const violations: RepositoryViolation[] = []
-        const lines = code.split("\n")
-
-        for (let i = 0; i < lines.length; i++) {
-            const line = lines[i]
-            const lineNumber = i + 1
-
-            const methodMatch =
-                /(\w+)\s*\([^)]*:\s*([^)]+)\)\s*:\s*.*?(?:Promise<([^>]+)>|([A-Z]\w+))/.exec(line)
-
-            if (methodMatch) {
-                const params = methodMatch[2]
-                const returnType = methodMatch[3] || methodMatch[4]
-
-                if (this.isOrmType(params)) {
-                    const ormType = this.extractOrmType(params)
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
-                            filePath,
-                            layer || LAYERS.DOMAIN,
-                            lineNumber,
-                            `Method parameter uses ORM type: ${ormType}`,
-                            ormType,
-                        ),
-                    )
-                }
-
-                if (returnType && this.isOrmType(returnType)) {
-                    const ormType = this.extractOrmType(returnType)
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
-                            filePath,
-                            layer || LAYERS.DOMAIN,
-                            lineNumber,
-                            `Method return type uses ORM type: ${ormType}`,
-                            ormType,
-                        ),
-                    )
-                }
-            }
-
-            for (const pattern of this.ormTypePatterns) {
-                if (pattern.test(line) && !line.trim().startsWith("//")) {
-                    const ormType = this.extractOrmType(line)
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
-                            filePath,
-                            layer || LAYERS.DOMAIN,
-                            lineNumber,
-                            `Repository interface contains ORM-specific type: ${ormType}`,
-                            ormType,
-                        ),
-                    )
-                    break
-                }
-            }
-        }
-
-        return violations
-    }
-
-    /**
-     * Suggests better domain method names based on the original method name
-     */
-    private suggestDomainMethodName(methodName: string): string {
-        const lowerName = methodName.toLowerCase()
-        const suggestions: string[] = []
-
-        const suggestionMap: Record<string, string[]> = {
-            query: [
-                REPOSITORY_METHOD_SUGGESTIONS.SEARCH,
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
-            ],
-            select: [
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
-                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
-            ],
-            insert: [
-                REPOSITORY_METHOD_SUGGESTIONS.CREATE,
-                REPOSITORY_METHOD_SUGGESTIONS.ADD_ENTITY,
-                REPOSITORY_METHOD_SUGGESTIONS.STORE_ENTITY,
-            ],
-            update: [
-                REPOSITORY_METHOD_SUGGESTIONS.UPDATE,
-                REPOSITORY_METHOD_SUGGESTIONS.MODIFY_ENTITY,
-            ],
-            upsert: [
-                REPOSITORY_METHOD_SUGGESTIONS.SAVE,
-                REPOSITORY_METHOD_SUGGESTIONS.STORE_ENTITY,
-            ],
-            remove: [
-                REPOSITORY_METHOD_SUGGESTIONS.DELETE,
-                REPOSITORY_METHOD_SUGGESTIONS.REMOVE_BY_PROPERTY,
-            ],
-            fetch: [
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
-                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
-            ],
-            retrieve: [
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
-                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
-            ],
-            load: [
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
-                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
-            ],
-        }
-
-        for (const [keyword, keywords] of Object.entries(suggestionMap)) {
-            if (lowerName.includes(keyword)) {
-                suggestions.push(...keywords)
-            }
-        }
-
-        if (lowerName.includes("get") && lowerName.includes("all")) {
-            suggestions.push(
-                REPOSITORY_METHOD_SUGGESTIONS.FIND_ALL,
-                REPOSITORY_METHOD_SUGGESTIONS.LIST_ALL,
-            )
-        }
-
-        if (suggestions.length === 0) {
-            return REPOSITORY_METHOD_SUGGESTIONS.DEFAULT_SUGGESTION
-        }
-
-        return `Consider: ${suggestions.slice(0, 3).join(", ")}`
-    }
-
-    /**
-     * Detects non-domain method names in repository interfaces
-     */
-    private detectNonDomainMethodNames(
-        code: string,
-        filePath: string,
-        layer: string | undefined,
-    ): RepositoryViolation[] {
-        const violations: RepositoryViolation[] = []
-        const lines = code.split("\n")
-
-        for (let i = 0; i < lines.length; i++) {
-            const line = lines[i]
-            const lineNumber = i + 1
-
-            const methodMatch = /^\s*(\w+)\s*\(/.exec(line)
-
-            if (methodMatch) {
-                const methodName = methodMatch[1]
-
-                if (!this.isDomainMethodName(methodName) && !line.trim().startsWith("//")) {
-                    const suggestion = this.suggestDomainMethodName(methodName)
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.NON_DOMAIN_METHOD_NAME,
-                            filePath,
-                            layer || LAYERS.DOMAIN,
-                            lineNumber,
-                            `Method '${methodName}' uses technical name instead of domain language. ${suggestion}`,
-                            undefined,
-                            undefined,
-                            methodName,
-                        ),
-                    )
-                }
-            }
-        }
-
-        return violations
-    }
-
-    /**
-     * Detects concrete repository usage in use cases
-     */
-    private detectConcreteRepositoryUsage(
-        code: string,
-        filePath: string,
-        layer: string | undefined,
-    ): RepositoryViolation[] {
-        const violations: RepositoryViolation[] = []
-        const lines = code.split("\n")
-
-        for (let i = 0; i < lines.length; i++) {
-            const line = lines[i]
-            const lineNumber = i + 1
-
-            const constructorParamMatch =
-                /constructor\s*\([^)]*(?:private|public|protected)\s+(?:readonly\s+)?(\w+)\s*:\s*([A-Z]\w*Repository)/.exec(
-                    line,
-                )
-
-            if (constructorParamMatch) {
-                const repositoryType = constructorParamMatch[2]
-
-                if (!repositoryType.startsWith("I")) {
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.CONCRETE_REPOSITORY_IN_USE_CASE,
-                            filePath,
-                            layer || LAYERS.APPLICATION,
-                            lineNumber,
-                            `Use case depends on concrete repository '${repositoryType}'`,
-                            undefined,
-                            repositoryType,
-                        ),
-                    )
-                }
-            }
-
-            const fieldMatch =
-                /(?:private|public|protected)\s+(?:readonly\s+)?(\w+)\s*:\s*([A-Z]\w*Repository)/.exec(
-                    line,
-                )
-
-            if (fieldMatch) {
-                const repositoryType = fieldMatch[2]
-
-                if (
-                    !repositoryType.startsWith("I") &&
-                    !line.includes(REPOSITORY_PATTERN_MESSAGES.CONSTRUCTOR)
-                ) {
-                    violations.push(
-                        RepositoryViolation.create(
-                            REPOSITORY_VIOLATION_TYPES.CONCRETE_REPOSITORY_IN_USE_CASE,
-                            filePath,
-                            layer || LAYERS.APPLICATION,
-                            lineNumber,
-                            `Use case field uses concrete repository '${repositoryType}'`,
-                            undefined,
-                            repositoryType,
-                        ),
-                    )
-                }
-            }
-        }
-
-        return violations
-    }
-
-    /**
-     * Detects 'new Repository()' instantiation in use cases
-     */
-    private detectNewRepositoryInstantiation(
-        code: string,
-        filePath: string,
-        layer: string | undefined,
-    ): RepositoryViolation[] {
-        const violations: RepositoryViolation[] = []
-        const lines = code.split("\n")
-
-        for (let i = 0; i < lines.length; i++) {
-            const line = lines[i]
-            const lineNumber = i + 1
-
-            const newRepositoryMatch = /new\s+([A-Z]\w*Repository)\s*\(/.exec(line)
-
-            if (newRepositoryMatch && !line.trim().startsWith("//")) {
-                const repositoryName = newRepositoryMatch[1]
-                violations.push(
-                    RepositoryViolation.create(
-                        REPOSITORY_VIOLATION_TYPES.NEW_REPOSITORY_IN_USE_CASE,
-                        filePath,
-                        layer || LAYERS.APPLICATION,
-                        lineNumber,
-                        `Use case creates repository with 'new ${repositoryName}()'`,
-                        undefined,
-                        repositoryName,
-                    ),
-                )
-            }
-        }
-
-        return violations
-    }
-
-    /**
-     * Extracts ORM type name from a code line
-     */
-    private extractOrmType(line: string): string {
-        for (const pattern of this.ormTypePatterns) {
-            const match = line.match(pattern)
-            if (match) {
-                const startIdx = match.index || 0
-                const typeMatch = /[\w.]+/.exec(line.slice(startIdx))
-                return typeMatch ? typeMatch[0] : REPOSITORY_PATTERN_MESSAGES.UNKNOWN_TYPE
-            }
-        }
-        return REPOSITORY_PATTERN_MESSAGES.UNKNOWN_TYPE
     }
 }

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

@@ -0,0 +1,167 @@
+import { createEngine } from "@secretlint/node"
+import type { SecretLintConfigDescriptor } from "@secretlint/types"
+import { ISecretDetector } from "../../domain/services/ISecretDetector"
+import { SecretViolation } from "../../domain/value-objects/SecretViolation"
+
+/**
+ * Detects hardcoded secrets in TypeScript/JavaScript code
+ *
+ * Uses industry-standard Secretlint library to detect 350+ types of secrets
+ * including AWS keys, GitHub tokens, NPM tokens, SSH keys, API keys, and more.
+ *
+ * All detected secrets are marked as CRITICAL severity because they represent
+ * serious security risks that could lead to unauthorized access or data breaches.
+ *
+ * @example
+ * ```typescript
+ * const detector = new SecretDetector()
+ * const code = `const AWS_KEY = "AKIA1234567890ABCDEF"`
+ * const violations = await detector.detectAll(code, 'config.ts')
+ * // Returns array of SecretViolation objects with CRITICAL severity
+ * ```
+ */
+export class SecretDetector implements ISecretDetector {
+    private readonly secretlintConfig: SecretLintConfigDescriptor = {
+        rules: [
+            {
+                id: "@secretlint/secretlint-rule-preset-recommend",
+            },
+        ],
+    }
+
+    /**
+     * Detects all types of hardcoded secrets in the provided code
+     *
+     * @param code - Source code to analyze
+     * @param filePath - Path to the file being analyzed
+     * @returns Promise resolving to array of secret violations
+     */
+    public async detectAll(code: string, filePath: string): Promise<SecretViolation[]> {
+        try {
+            const engine = await createEngine({
+                cwd: process.cwd(),
+                configFileJSON: this.secretlintConfig,
+                formatter: "stylish",
+                color: false,
+            })
+
+            const result = await engine.executeOnContent({
+                content: code,
+                filePath,
+            })
+
+            return this.parseOutputToViolations(result.output, filePath)
+        } catch (_error) {
+            return []
+        }
+    }
+
+    private parseOutputToViolations(output: string, filePath: string): SecretViolation[] {
+        const violations: SecretViolation[] = []
+
+        if (!output || output.trim() === "") {
+            return violations
+        }
+
+        const lines = output.split("\n")
+
+        for (const line of lines) {
+            const match = /^\s*(\d+):(\d+)\s+(error|warning)\s+(.+?)\s+(.+)$/.exec(line)
+
+            if (match) {
+                const [, lineNum, column, , message, ruleId] = match
+                const secretType = this.extractSecretType(message, ruleId)
+
+                const violation = SecretViolation.create(
+                    filePath,
+                    parseInt(lineNum, 10),
+                    parseInt(column, 10),
+                    secretType,
+                    message,
+                )
+
+                violations.push(violation)
+            }
+        }
+
+        return violations
+    }
+
+    private extractSecretType(message: string, ruleId: string): string {
+        if (ruleId.includes("aws")) {
+            if (message.toLowerCase().includes("access key")) {
+                return "AWS Access Key"
+            }
+            if (message.toLowerCase().includes("secret")) {
+                return "AWS Secret Key"
+            }
+            return "AWS Credential"
+        }
+
+        if (ruleId.includes("github")) {
+            if (message.toLowerCase().includes("personal access token")) {
+                return "GitHub Personal Access Token"
+            }
+            if (message.toLowerCase().includes("oauth")) {
+                return "GitHub OAuth Token"
+            }
+            return "GitHub Token"
+        }
+
+        if (ruleId.includes("npm")) {
+            return "NPM Token"
+        }
+
+        if (ruleId.includes("gcp") || ruleId.includes("google")) {
+            return "GCP Service Account Key"
+        }
+
+        if (ruleId.includes("privatekey") || ruleId.includes("ssh")) {
+            if (message.toLowerCase().includes("rsa")) {
+                return "SSH RSA Private Key"
+            }
+            if (message.toLowerCase().includes("dsa")) {
+                return "SSH DSA Private Key"
+            }
+            if (message.toLowerCase().includes("ecdsa")) {
+                return "SSH ECDSA Private Key"
+            }
+            if (message.toLowerCase().includes("ed25519")) {
+                return "SSH Ed25519 Private Key"
+            }
+            return "SSH Private Key"
+        }
+
+        if (ruleId.includes("slack")) {
+            if (message.toLowerCase().includes("bot")) {
+                return "Slack Bot Token"
+            }
+            if (message.toLowerCase().includes("user")) {
+                return "Slack User Token"
+            }
+            return "Slack Token"
+        }
+
+        if (ruleId.includes("basicauth")) {
+            return "Basic Authentication Credentials"
+        }
+
+        if (message.toLowerCase().includes("api key")) {
+            return "API Key"
+        }
+
+        if (message.toLowerCase().includes("token")) {
+            return "Authentication Token"
+        }
+
+        if (message.toLowerCase().includes("password")) {
+            return "Password"
+        }
+
+        if (message.toLowerCase().includes("secret")) {
+            return "Secret"
+        }
+
+        return "Sensitive Data"
+    }
+}

packages/guardian/src/infrastructure/strategies/AggregatePathAnalyzer.ts

@@ -0,0 +1,177 @@
+import { DDD_FOLDER_NAMES } from "../constants/detectorPatterns"
+import { IMPORT_PATTERNS } from "../constants/paths"
+import { FolderRegistry } from "./FolderRegistry"
+
+/**
+ * Analyzes file paths and imports to extract aggregate information
+ *
+ * Handles path normalization, aggregate extraction, and entity name detection
+ * for aggregate boundary validation.
+ */
+export class AggregatePathAnalyzer {
+    constructor(private readonly folderRegistry: FolderRegistry) {}
+
+    /**
+     * Extracts the aggregate name from a file path
+     *
+     * Handles patterns like:
+     * - domain/aggregates/order/Order.ts → 'order'
+     * - domain/order/Order.ts → 'order'
+     * - domain/entities/order/Order.ts → 'order'
+     */
+    public extractAggregateFromPath(filePath: string): string | undefined {
+        const normalizedPath = this.normalizePath(filePath)
+        const segments = this.getPathSegmentsAfterDomain(normalizedPath)
+
+        if (!segments || segments.length < 2) {
+            return undefined
+        }
+
+        return this.findAggregateInSegments(segments)
+    }
+
+    /**
+     * Extracts the aggregate name from an import path
+     */
+    public extractAggregateFromImport(importPath: string): string | undefined {
+        const normalizedPath = importPath.replace(IMPORT_PATTERNS.QUOTE, "").toLowerCase()
+        const segments = normalizedPath.split("/").filter((seg) => seg !== ".." && seg !== ".")
+
+        if (segments.length === 0) {
+            return undefined
+        }
+
+        return this.findAggregateInImportSegments(segments)
+    }
+
+    /**
+     * Extracts the entity name from an import path
+     */
+    public extractEntityName(importPath: string): string | undefined {
+        const normalizedPath = importPath.replace(IMPORT_PATTERNS.QUOTE, "")
+        const segments = normalizedPath.split("/")
+        const lastSegment = segments[segments.length - 1]
+
+        if (lastSegment) {
+            return lastSegment.replace(/\.(ts|js)$/, "")
+        }
+
+        return undefined
+    }
+
+    /**
+     * Normalizes a file path for consistent processing
+     */
+    private normalizePath(filePath: string): string {
+        return filePath.toLowerCase().replace(/\\/g, "/")
+    }
+
+    /**
+     * Gets path segments after the 'domain' folder
+     */
+    private getPathSegmentsAfterDomain(normalizedPath: string): string[] | undefined {
+        const domainMatch = /(?:^|\/)(domain)\//.exec(normalizedPath)
+        if (!domainMatch) {
+            return undefined
+        }
+
+        const domainEndIndex = domainMatch.index + domainMatch[0].length
+        const pathAfterDomain = normalizedPath.substring(domainEndIndex)
+        return pathAfterDomain.split("/").filter(Boolean)
+    }
+
+    /**
+     * Finds aggregate name in path segments after domain folder
+     */
+    private findAggregateInSegments(segments: string[]): string | undefined {
+        if (this.folderRegistry.isEntityFolder(segments[0])) {
+            return this.extractFromEntityFolder(segments)
+        }
+
+        const aggregate = segments[0]
+        if (this.folderRegistry.isNonAggregateFolder(aggregate)) {
+            return undefined
+        }
+
+        return aggregate
+    }
+
+    /**
+     * Extracts aggregate from entity folder structure
+     */
+    private extractFromEntityFolder(segments: string[]): string | undefined {
+        if (segments.length < 3) {
+            return undefined
+        }
+
+        const aggregate = segments[1]
+        if (this.folderRegistry.isNonAggregateFolder(aggregate)) {
+            return undefined
+        }
+
+        return aggregate
+    }
+
+    /**
+     * Finds aggregate in import path segments
+     */
+    private findAggregateInImportSegments(segments: string[]): string | undefined {
+        const aggregateFromDomainFolder = this.findAggregateAfterDomainFolder(segments)
+        if (aggregateFromDomainFolder) {
+            return aggregateFromDomainFolder
+        }
+
+        return this.findAggregateFromSecondLastSegment(segments)
+    }
+
+    /**
+     * Finds aggregate after 'domain' or 'aggregates' folder in import
+     */
+    private findAggregateAfterDomainFolder(segments: string[]): string | undefined {
+        for (let i = 0; i < segments.length; i++) {
+            const isDomainOrAggregatesFolder =
+                segments[i] === DDD_FOLDER_NAMES.DOMAIN ||
+                segments[i] === DDD_FOLDER_NAMES.AGGREGATES
+
+            if (!isDomainOrAggregatesFolder) {
+                continue
+            }
+
+            if (i + 1 >= segments.length) {
+                continue
+            }
+
+            const nextSegment = segments[i + 1]
+            const isEntityOrAggregateFolder =
+                this.folderRegistry.isEntityFolder(nextSegment) ||
+                nextSegment === DDD_FOLDER_NAMES.AGGREGATES
+
+            if (isEntityOrAggregateFolder) {
+                return i + 2 < segments.length ? segments[i + 2] : undefined
+            }
+
+            return nextSegment
+        }
+        return undefined
+    }
+
+    /**
+     * Extracts aggregate from second-to-last segment if applicable
+     */
+    private findAggregateFromSecondLastSegment(segments: string[]): string | undefined {
+        if (segments.length >= 2) {
+            const secondLastSegment = segments[segments.length - 2]
+
+            if (
+                !this.folderRegistry.isEntityFolder(secondLastSegment) &&
+                !this.folderRegistry.isValueObjectFolder(secondLastSegment) &&
+                !this.folderRegistry.isAllowedFolder(secondLastSegment) &&
+                secondLastSegment !== DDD_FOLDER_NAMES.DOMAIN
+            ) {
+                return secondLastSegment
+            }
+        }
+
+        return undefined
+    }
+}

packages/guardian/src/infrastructure/strategies/BraceTracker.ts

@@ -0,0 +1,96 @@
+/**
+ * Tracks braces and brackets in code for context analysis
+ *
+ * Used to determine if a line is inside an exported constant
+ * by counting unclosed braces and brackets.
+ */
+export class BraceTracker {
+    /**
+     * Counts unclosed braces and brackets between two line indices
+     */
+    public countUnclosed(
+        lines: string[],
+        startLine: number,
+        endLine: number,
+    ): { braces: number; brackets: number } {
+        let braces = 0
+        let brackets = 0
+
+        for (let i = startLine; i <= endLine; i++) {
+            const counts = this.countInLine(lines[i])
+            braces += counts.braces
+            brackets += counts.brackets
+        }
+
+        return { braces, brackets }
+    }
+
+    /**
+     * Counts braces and brackets in a single line
+     */
+    private countInLine(line: string): { braces: number; brackets: number } {
+        let braces = 0
+        let brackets = 0
+        let inString = false
+        let stringChar = ""
+
+        for (let j = 0; j < line.length; j++) {
+            const char = line[j]
+            const prevChar = j > 0 ? line[j - 1] : ""
+
+            this.updateStringState(
+                char,
+                prevChar,
+                inString,
+                stringChar,
+                (newInString, newStringChar) => {
+                    inString = newInString
+                    stringChar = newStringChar
+                },
+            )
+
+            if (!inString) {
+                const counts = this.countChar(char)
+                braces += counts.braces
+                brackets += counts.brackets
+            }
+        }
+
+        return { braces, brackets }
+    }
+
+    /**
+     * Updates string tracking state
+     */
+    private updateStringState(
+        char: string,
+        prevChar: string,
+        inString: boolean,
+        stringChar: string,
+        callback: (inString: boolean, stringChar: string) => void,
+    ): void {
+        if ((char === "'" || char === '"' || char === "`") && prevChar !== "\\") {
+            if (!inString) {
+                callback(true, char)
+            } else if (char === stringChar) {
+                callback(false, "")
+            }
+        }
+    }
+
+    /**
+     * Counts a single character
+     */
+    private countChar(char: string): { braces: number; brackets: number } {
+        if (char === "{") {
+            return { braces: 1, brackets: 0 }
+        } else if (char === "}") {
+            return { braces: -1, brackets: 0 }
+        } else if (char === "[") {
+            return { braces: 0, brackets: 1 }
+        } else if (char === "]") {
+            return { braces: 0, brackets: -1 }
+        }
+        return { braces: 0, brackets: 0 }
+    }
+}

packages/guardian/src/infrastructure/strategies/ConstantsFileChecker.ts

@@ -0,0 +1,21 @@
+/**
+ * Checks if a file is a constants definition file
+ *
+ * Identifies files that should be skipped for hardcode detection
+ * since they are meant to contain constant definitions.
+ */
+export class ConstantsFileChecker {
+    private readonly constantsPatterns = [
+        /^constants?\.(ts|js)$/i,
+        /constants?\/.*\.(ts|js)$/i,
+        /\/(constants|config|settings|defaults|tokens)\.ts$/i,
+        /\/di\/tokens\.(ts|js)$/i,
+    ]
+
+    /**
+     * Checks if a file path represents a constants file
+     */
+    public isConstantsFile(filePath: string): boolean {
+        return this.constantsPatterns.some((pattern) => pattern.test(filePath))
+    }
+}

packages/guardian/src/infrastructure/strategies/ExportConstantAnalyzer.ts

@@ -0,0 +1,112 @@
+import { CODE_PATTERNS } from "../constants/defaults"
+import { BraceTracker } from "./BraceTracker"
+
+/**
+ * Analyzes export const declarations in code
+ *
+ * Determines if a line is inside an exported constant declaration
+ * to skip hardcode detection in constant definitions.
+ */
+export class ExportConstantAnalyzer {
+    constructor(private readonly braceTracker: BraceTracker) {}
+
+    /**
+     * Checks if a line is inside an exported constant definition
+     */
+    public isInExportedConstant(lines: string[], lineIndex: number): boolean {
+        const currentLineTrimmed = lines[lineIndex].trim()
+
+        if (this.isSingleLineExportConst(currentLineTrimmed)) {
+            return true
+        }
+
+        const exportConstStart = this.findExportConstStart(lines, lineIndex)
+        if (exportConstStart === -1) {
+            return false
+        }
+
+        const { braces, brackets } = this.braceTracker.countUnclosed(
+            lines,
+            exportConstStart,
+            lineIndex,
+        )
+
+        return braces > 0 || brackets > 0
+    }
+
+    /**
+     * Checks if a line is a single-line export const declaration
+     */
+    public isSingleLineExportConst(line: string): boolean {
+        if (!line.startsWith(CODE_PATTERNS.EXPORT_CONST)) {
+            return false
+        }
+
+        const hasObjectOrArray = this.hasObjectOrArray(line)
+
+        if (hasObjectOrArray) {
+            return this.hasAsConstEnding(line)
+        }
+
+        return line.includes(CODE_PATTERNS.AS_CONST)
+    }
+
+    /**
+     * Finds the starting line of an export const declaration
+     */
+    public findExportConstStart(lines: string[], lineIndex: number): number {
+        for (let currentLine = lineIndex; currentLine >= 0; currentLine--) {
+            const trimmed = lines[currentLine].trim()
+
+            if (this.isExportConstWithStructure(trimmed)) {
+                return currentLine
+            }
+
+            if (this.isTopLevelStatement(trimmed, currentLine, lineIndex)) {
+                break
+            }
+        }
+
+        return -1
+    }
+
+    /**
+     * Checks if line has object or array structure
+     */
+    private hasObjectOrArray(line: string): boolean {
+        return line.includes(CODE_PATTERNS.OBJECT_START) || line.includes(CODE_PATTERNS.ARRAY_START)
+    }
+
+    /**
+     * Checks if line has 'as const' ending
+     */
+    private hasAsConstEnding(line: string): boolean {
+        return (
+            line.includes(CODE_PATTERNS.AS_CONST_OBJECT) ||
+            line.includes(CODE_PATTERNS.AS_CONST_ARRAY) ||
+            line.includes(CODE_PATTERNS.AS_CONST_END_SEMICOLON_OBJECT) ||
+            line.includes(CODE_PATTERNS.AS_CONST_END_SEMICOLON_ARRAY)
+        )
+    }
+
+    /**
+     * Checks if line is export const with object or array
+     */
+    private isExportConstWithStructure(trimmed: string): boolean {
+        return (
+            trimmed.startsWith(CODE_PATTERNS.EXPORT_CONST) &&
+            (trimmed.includes(CODE_PATTERNS.OBJECT_START) ||
+                trimmed.includes(CODE_PATTERNS.ARRAY_START))
+        )
+    }
+
+    /**
+     * Checks if line is a top-level statement
+     */
+    private isTopLevelStatement(trimmed: string, currentLine: number, lineIndex: number): boolean {
+        return (
+            currentLine < lineIndex &&
+            (trimmed.startsWith(CODE_PATTERNS.EXPORT) || trimmed.startsWith(CODE_PATTERNS.IMPORT))
+        )
+    }
+}

packages/guardian/src/infrastructure/strategies/FolderRegistry.ts

@@ -0,0 +1,72 @@
+import { DDD_FOLDER_NAMES } from "../constants/detectorPatterns"
+
+/**
+ * Registry for DDD folder names used in aggregate boundary detection
+ *
+ * Centralizes folder name management for cleaner code organization
+ * and easier maintenance of folder name rules.
+ */
+export class FolderRegistry {
+    public readonly entityFolders: Set<string>
+    public readonly valueObjectFolders: Set<string>
+    public readonly allowedFolders: Set<string>
+    public readonly nonAggregateFolders: Set<string>
+
+    constructor() {
+        this.entityFolders = new Set<string>([
+            DDD_FOLDER_NAMES.ENTITIES,
+            DDD_FOLDER_NAMES.AGGREGATES,
+        ])
+
+        this.valueObjectFolders = new Set<string>([
+            DDD_FOLDER_NAMES.VALUE_OBJECTS,
+            DDD_FOLDER_NAMES.VO,
+        ])
+
+        this.allowedFolders = new Set<string>([
+            DDD_FOLDER_NAMES.VALUE_OBJECTS,
+            DDD_FOLDER_NAMES.VO,
+            DDD_FOLDER_NAMES.EVENTS,
+            DDD_FOLDER_NAMES.DOMAIN_EVENTS,
+            DDD_FOLDER_NAMES.REPOSITORIES,
+            DDD_FOLDER_NAMES.SERVICES,
+            DDD_FOLDER_NAMES.SPECIFICATIONS,
+            DDD_FOLDER_NAMES.ERRORS,
+            DDD_FOLDER_NAMES.EXCEPTIONS,
+        ])
+
+        this.nonAggregateFolders = new Set<string>([
+            DDD_FOLDER_NAMES.VALUE_OBJECTS,
+            DDD_FOLDER_NAMES.VO,
+            DDD_FOLDER_NAMES.EVENTS,
+            DDD_FOLDER_NAMES.DOMAIN_EVENTS,
+            DDD_FOLDER_NAMES.REPOSITORIES,
+            DDD_FOLDER_NAMES.SERVICES,
+            DDD_FOLDER_NAMES.SPECIFICATIONS,
+            DDD_FOLDER_NAMES.ENTITIES,
+            DDD_FOLDER_NAMES.CONSTANTS,
+            DDD_FOLDER_NAMES.SHARED,
+            DDD_FOLDER_NAMES.FACTORIES,
+            DDD_FOLDER_NAMES.PORTS,
+            DDD_FOLDER_NAMES.INTERFACES,
+            DDD_FOLDER_NAMES.ERRORS,
+            DDD_FOLDER_NAMES.EXCEPTIONS,
+        ])
+    }
+
+    public isEntityFolder(folderName: string): boolean {
+        return this.entityFolders.has(folderName)
+    }
+
+    public isValueObjectFolder(folderName: string): boolean {
+        return this.valueObjectFolders.has(folderName)
+    }
+
+    public isAllowedFolder(folderName: string): boolean {
+        return this.allowedFolders.has(folderName)
+    }
+
+    public isNonAggregateFolder(folderName: string): boolean {
+        return this.nonAggregateFolders.has(folderName)
+    }
+}

packages/guardian/src/infrastructure/strategies/ImportValidator.ts

@@ -0,0 +1,150 @@
+import { IMPORT_PATTERNS } from "../constants/paths"
+import { AggregatePathAnalyzer } from "./AggregatePathAnalyzer"
+import { FolderRegistry } from "./FolderRegistry"
+
+/**
+ * Validates imports for aggregate boundary violations
+ *
+ * Checks if imports cross aggregate boundaries inappropriately
+ * and ensures proper encapsulation in DDD architecture.
+ */
+export class ImportValidator {
+    constructor(
+        private readonly folderRegistry: FolderRegistry,
+        private readonly pathAnalyzer: AggregatePathAnalyzer,
+    ) {}
+
+    /**
+     * Checks if an import violates aggregate boundaries
+     */
+    public isViolation(importPath: string, currentAggregate: string): boolean {
+        const normalizedPath = this.normalizeImportPath(importPath)
+
+        if (!this.isValidImportPath(normalizedPath)) {
+            return false
+        }
+
+        if (this.isInternalBoundedContextImport(normalizedPath)) {
+            return false
+        }
+
+        const targetAggregate = this.pathAnalyzer.extractAggregateFromImport(normalizedPath)
+        if (!targetAggregate || targetAggregate === currentAggregate) {
+            return false
+        }
+
+        if (this.isAllowedImport(normalizedPath)) {
+            return false
+        }
+
+        return this.seemsLikeEntityImport(normalizedPath)
+    }
+
+    /**
+     * Extracts all import paths from a line of code
+     */
+    public extractImports(line: string): string[] {
+        const imports: string[] = []
+
+        this.extractEsImports(line, imports)
+        this.extractRequireImports(line, imports)
+
+        return imports
+    }
+
+    /**
+     * Normalizes an import path for consistent processing
+     */
+    private normalizeImportPath(importPath: string): string {
+        return importPath.replace(IMPORT_PATTERNS.QUOTE, "").toLowerCase()
+    }
+
+    /**
+     * Checks if import path is valid for analysis
+     */
+    private isValidImportPath(normalizedPath: string): boolean {
+        if (!normalizedPath.includes("/")) {
+            return false
+        }
+
+        if (!normalizedPath.startsWith(".") && !normalizedPath.startsWith("/")) {
+            return false
+        }
+
+        return true
+    }
+
+    /**
+     * Checks if import is internal to the same bounded context
+     */
+    private isInternalBoundedContextImport(normalizedPath: string): boolean {
+        const parts = normalizedPath.split("/")
+        const dotDotCount = parts.filter((p) => p === "..").length
+
+        if (dotDotCount === 1) {
+            const nonDotParts = parts.filter((p) => p !== ".." && p !== ".")
+            if (nonDotParts.length >= 1) {
+                const firstFolder = nonDotParts[0]
+                if (this.folderRegistry.isEntityFolder(firstFolder)) {
+                    return true
+                }
+            }
+        }
+
+        return false
+    }
+
+    /**
+     * Checks if import is from an allowed folder
+     */
+    private isAllowedImport(normalizedPath: string): boolean {
+        for (const folderName of this.folderRegistry.allowedFolders) {
+            if (normalizedPath.includes(`/${folderName}/`)) {
+                return true
+            }
+        }
+        return false
+    }
+
+    /**
+     * Checks if import seems to be an entity
+     */
+    private seemsLikeEntityImport(normalizedPath: string): boolean {
+        const pathParts = normalizedPath.split("/")
+        const lastPart = pathParts[pathParts.length - 1]
+
+        if (!lastPart) {
+            return false
+        }
+
+        const filename = lastPart.replace(/\.(ts|js)$/, "")
+
+        if (filename.length > 0 && /^[a-z][a-z]/.exec(filename)) {
+            return true
+        }
+
+        return false
+    }
+
+    /**
+     * Extracts ES6 imports from a line
+     */
+    private extractEsImports(line: string, imports: string[]): void {
+        let match = IMPORT_PATTERNS.ES_IMPORT.exec(line)
+        while (match) {
+            imports.push(match[1])
+            match = IMPORT_PATTERNS.ES_IMPORT.exec(line)
+        }
+    }
+
+    /**
+     * Extracts CommonJS requires from a line
+     */
+    private extractRequireImports(line: string, imports: string[]): void {
+        let match = IMPORT_PATTERNS.REQUIRE.exec(line)
+        while (match) {
+            imports.push(match[1])
+            match = IMPORT_PATTERNS.REQUIRE.exec(line)
+        }
+    }
+}

packages/guardian/src/infrastructure/strategies/MagicNumberMatcher.ts

@@ -0,0 +1,171 @@
+import { HardcodedValue } from "../../domain/value-objects/HardcodedValue"
+import { ALLOWED_NUMBERS, DETECTION_KEYWORDS } from "../constants/defaults"
+import { HARDCODE_TYPES } from "../../shared/constants"
+import { ExportConstantAnalyzer } from "./ExportConstantAnalyzer"
+
+/**
+ * Detects magic numbers in code
+ *
+ * Identifies hardcoded numeric values that should be extracted
+ * to constants, excluding allowed values and exported constants.
+ */
+export class MagicNumberMatcher {
+    private readonly numberPatterns = [
+        /(?:setTimeout|setInterval)\s*\(\s*[^,]+,\s*(\d+)/g,
+        /(?:maxRetries|retries|attempts)\s*[=:]\s*(\d+)/gi,
+        /(?:limit|max|min)\s*[=:]\s*(\d+)/gi,
+        /(?:port|PORT)\s*[=:]\s*(\d+)/g,
+        /(?:delay|timeout|TIMEOUT)\s*[=:]\s*(\d+)/gi,
+    ]
+
+    constructor(private readonly exportAnalyzer: ExportConstantAnalyzer) {}
+
+    /**
+     * Detects magic numbers in code
+     */
+    public detect(code: string): HardcodedValue[] {
+        const results: HardcodedValue[] = []
+        const lines = code.split("\n")
+
+        lines.forEach((line, lineIndex) => {
+            if (this.shouldSkipLine(line, lines, lineIndex)) {
+                return
+            }
+
+            this.detectInPatterns(line, lineIndex, results)
+            this.detectGenericNumbers(line, lineIndex, results)
+        })
+
+        return results
+    }
+
+    /**
+     * Checks if line should be skipped
+     */
+    private shouldSkipLine(line: string, lines: string[], lineIndex: number): boolean {
+        if (line.trim().startsWith("//") || line.trim().startsWith("*")) {
+            return true
+        }
+
+        return this.exportAnalyzer.isInExportedConstant(lines, lineIndex)
+    }
+
+    /**
+     * Detects numbers in specific patterns
+     */
+    private detectInPatterns(line: string, lineIndex: number, results: HardcodedValue[]): void {
+        this.numberPatterns.forEach((pattern) => {
+            let match
+            const regex = new RegExp(pattern)
+
+            while ((match = regex.exec(line)) !== null) {
+                const value = parseInt(match[1], 10)
+
+                if (!ALLOWED_NUMBERS.has(value)) {
+                    results.push(
+                        HardcodedValue.create(
+                            value,
+                            HARDCODE_TYPES.MAGIC_NUMBER,
+                            lineIndex + 1,
+                            match.index,
+                            line.trim(),
+                        ),
+                    )
+                }
+            }
+        })
+    }
+
+    /**
+     * Detects generic 3+ digit numbers
+     */
+    private detectGenericNumbers(line: string, lineIndex: number, results: HardcodedValue[]): void {
+        const genericNumberRegex = /\b(\d{3,})\b/g
+        let match
+
+        while ((match = genericNumberRegex.exec(line)) !== null) {
+            const value = parseInt(match[1], 10)
+
+            if (this.shouldDetectNumber(value, line, match.index)) {
+                results.push(
+                    HardcodedValue.create(
+                        value,
+                        HARDCODE_TYPES.MAGIC_NUMBER,
+                        lineIndex + 1,
+                        match.index,
+                        line.trim(),
+                    ),
+                )
+            }
+        }
+    }
+
+    /**
+     * Checks if number should be detected
+     */
+    private shouldDetectNumber(value: number, line: string, index: number): boolean {
+        if (ALLOWED_NUMBERS.has(value)) {
+            return false
+        }
+
+        if (this.isInComment(line, index)) {
+            return false
+        }
+
+        if (this.isInString(line, index)) {
+            return false
+        }
+
+        const context = this.extractContext(line, index)
+        return this.looksLikeMagicNumber(context)
+    }
+
+    /**
+     * Checks if position is in a comment
+     */
+    private isInComment(line: string, index: number): boolean {
+        const beforeIndex = line.substring(0, index)
+        return beforeIndex.includes("//") || beforeIndex.includes("/*")
+    }
+
+    /**
+     * Checks if position is in a string
+     */
+    private isInString(line: string, index: number): boolean {
+        const beforeIndex = line.substring(0, index)
+        const singleQuotes = (beforeIndex.match(/'/g) ?? []).length
+        const doubleQuotes = (beforeIndex.match(/"/g) ?? []).length
+        const backticks = (beforeIndex.match(/`/g) ?? []).length
+
+        return singleQuotes % 2 !== 0 || doubleQuotes % 2 !== 0 || backticks % 2 !== 0
+    }
+
+    /**
+     * Extracts context around a position
+     */
+    private extractContext(line: string, index: number): string {
+        const start = Math.max(0, index - 30)
+        const end = Math.min(line.length, index + 30)
+        return line.substring(start, end)
+    }
+
+    /**
+     * Checks if context suggests a magic number
+     */
+    private looksLikeMagicNumber(context: string): boolean {
+        const lowerContext = context.toLowerCase()
+
+        const configKeywords = [
+            DETECTION_KEYWORDS.TIMEOUT,
+            DETECTION_KEYWORDS.DELAY,
+            DETECTION_KEYWORDS.RETRY,
+            DETECTION_KEYWORDS.LIMIT,
+            DETECTION_KEYWORDS.MAX,
+            DETECTION_KEYWORDS.MIN,
+            DETECTION_KEYWORDS.PORT,
+            DETECTION_KEYWORDS.INTERVAL,
+        ]
+
+        return configKeywords.some((keyword) => lowerContext.includes(keyword))
+    }
+}

packages/guardian/src/infrastructure/strategies/MagicStringMatcher.ts

@@ -0,0 +1,212 @@
+import { HardcodedValue } from "../../domain/value-objects/HardcodedValue"
+import { DETECTION_KEYWORDS } from "../constants/defaults"
+import { HARDCODE_TYPES } from "../../shared/constants"
+import { ExportConstantAnalyzer } from "./ExportConstantAnalyzer"
+
+/**
+ * Detects magic strings in code
+ *
+ * Identifies hardcoded string values that should be extracted
+ * to constants, excluding test code, console logs, and type contexts.
+ */
+export class MagicStringMatcher {
+    private readonly stringRegex = /(['"`])(?:(?!\1).)+\1/g
+
+    private readonly allowedPatterns = [/^[a-z]$/i, /^\/$/, /^\\$/, /^\s+$/, /^,$/, /^\.$/]
+
+    private readonly typeContextPatterns = [
+        /^\s*type\s+\w+\s*=/i,
+        /^\s*interface\s+\w+/i,
+        /^\s*\w+\s*:\s*['"`]/,
+        /\s+as\s+['"`]/,
+        /Record<.*,\s*import\(/,
+        /typeof\s+\w+\s*===\s*['"`]/,
+        /['"`]\s*===\s*typeof\s+\w+/,
+    ]
+
+    constructor(private readonly exportAnalyzer: ExportConstantAnalyzer) {}
+
+    /**
+     * Detects magic strings in code
+     */
+    public detect(code: string): HardcodedValue[] {
+        const results: HardcodedValue[] = []
+        const lines = code.split("\n")
+
+        lines.forEach((line, lineIndex) => {
+            if (this.shouldSkipLine(line, lines, lineIndex)) {
+                return
+            }
+
+            this.detectStringsInLine(line, lineIndex, results)
+        })
+
+        return results
+    }
+
+    /**
+     * Checks if line should be skipped
+     */
+    private shouldSkipLine(line: string, lines: string[], lineIndex: number): boolean {
+        if (
+            line.trim().startsWith("//") ||
+            line.trim().startsWith("*") ||
+            line.includes("import ") ||
+            line.includes("from ")
+        ) {
+            return true
+        }
+
+        return this.exportAnalyzer.isInExportedConstant(lines, lineIndex)
+    }
+
+    /**
+     * Detects strings in a single line
+     */
+    private detectStringsInLine(line: string, lineIndex: number, results: HardcodedValue[]): void {
+        let match
+        const regex = new RegExp(this.stringRegex)
+
+        while ((match = regex.exec(line)) !== null) {
+            const fullMatch = match[0]
+            const value = fullMatch.slice(1, -1)
+
+            if (this.shouldDetectString(fullMatch, value, line)) {
+                results.push(
+                    HardcodedValue.create(
+                        value,
+                        HARDCODE_TYPES.MAGIC_STRING,
+                        lineIndex + 1,
+                        match.index,
+                        line.trim(),
+                    ),
+                )
+            }
+        }
+    }
+
+    /**
+     * Checks if string should be detected
+     */
+    private shouldDetectString(fullMatch: string, value: string, line: string): boolean {
+        if (fullMatch.startsWith("`") || value.includes("${")) {
+            return false
+        }
+
+        if (this.isAllowedString(value)) {
+            return false
+        }
+
+        return this.looksLikeMagicString(line, value)
+    }
+
+    /**
+     * Checks if string is allowed (short strings, single chars, etc.)
+     */
+    private isAllowedString(str: string): boolean {
+        if (str.length <= 1) {
+            return true
+        }
+
+        return this.allowedPatterns.some((pattern) => pattern.test(str))
+    }
+
+    /**
+     * Checks if line context suggests a magic string
+     */
+    private looksLikeMagicString(line: string, value: string): boolean {
+        const lowerLine = line.toLowerCase()
+
+        if (this.isTestCode(lowerLine)) {
+            return false
+        }
+
+        if (this.isConsoleLog(lowerLine)) {
+            return false
+        }
+
+        if (this.isInTypeContext(line)) {
+            return false
+        }
+
+        if (this.isInSymbolCall(line, value)) {
+            return false
+        }
+
+        if (this.isInImportCall(line, value)) {
+            return false
+        }
+
+        if (this.isUrlOrApi(value)) {
+            return true
+        }
+
+        if (/^\d{2,}$/.test(value)) {
+            return false
+        }
+
+        return value.length > 3
+    }
+
+    /**
+     * Checks if line is test code
+     */
+    private isTestCode(lowerLine: string): boolean {
+        return (
+            lowerLine.includes(DETECTION_KEYWORDS.TEST) ||
+            lowerLine.includes(DETECTION_KEYWORDS.DESCRIBE)
+        )
+    }
+
+    /**
+     * Checks if line is console log
+     */
+    private isConsoleLog(lowerLine: string): boolean {
+        return (
+            lowerLine.includes(DETECTION_KEYWORDS.CONSOLE_LOG) ||
+            lowerLine.includes(DETECTION_KEYWORDS.CONSOLE_ERROR)
+        )
+    }
+
+    /**
+     * Checks if line is in type context
+     */
+    private isInTypeContext(line: string): boolean {
+        const trimmedLine = line.trim()
+
+        if (this.typeContextPatterns.some((pattern) => pattern.test(trimmedLine))) {
+            return true
+        }
+
+        if (trimmedLine.includes("|") && /['"`][^'"`]+['"`]\s*\|/.test(trimmedLine)) {
+            return true
+        }
+
+        return false
+    }
+
+    /**
+     * Checks if string is inside Symbol() call
+     */
+    private isInSymbolCall(line: string, stringValue: string): boolean {
+        const symbolPattern = new RegExp(
+            `Symbol\\s*\\(\\s*['"\`]${stringValue.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}['"\`]\\s*\\)`,
+        )
+        return symbolPattern.test(line)
+    }
+
+    /**
+     * Checks if string is inside import() call
+     */
+    private isInImportCall(line: string, stringValue: string): boolean {
+        const importPattern = /import\s*\(\s*['"`][^'"`]+['"`]\s*\)/
+        return importPattern.test(line) && line.includes(stringValue)
+    }
+
+    /**
+     * Checks if string contains URL or API reference
+     */
+    private isUrlOrApi(value: string): boolean {
+        return value.includes(DETECTION_KEYWORDS.HTTP) || value.includes(DETECTION_KEYWORDS.API)
+    }
+}

packages/guardian/src/infrastructure/strategies/MethodNameValidator.ts

@@ -0,0 +1,134 @@
+import { REPOSITORY_METHOD_SUGGESTIONS } from "../constants/detectorPatterns"
+import { OrmTypeMatcher } from "./OrmTypeMatcher"
+
+/**
+ * Validates repository method names for domain language compliance
+ *
+ * Ensures repository methods use domain language instead of
+ * technical database terminology.
+ */
+export class MethodNameValidator {
+    private readonly domainMethodPatterns = [
+        /^findBy[A-Z]/,
+        /^findAll$/,
+        /^find[A-Z]/,
+        /^save$/,
+        /^saveAll$/,
+        /^create$/,
+        /^update$/,
+        /^delete$/,
+        /^deleteBy[A-Z]/,
+        /^deleteAll$/,
+        /^remove$/,
+        /^removeBy[A-Z]/,
+        /^removeAll$/,
+        /^add$/,
+        /^add[A-Z]/,
+        /^get[A-Z]/,
+        /^getAll$/,
+        /^search/,
+        /^list/,
+        /^has[A-Z]/,
+        /^is[A-Z]/,
+        /^exists$/,
+        /^exists[A-Z]/,
+        /^existsBy[A-Z]/,
+        /^clear[A-Z]/,
+        /^clearAll$/,
+        /^store[A-Z]/,
+        /^initialize$/,
+        /^initializeCollection$/,
+        /^close$/,
+        /^connect$/,
+        /^disconnect$/,
+        /^count$/,
+        /^countBy[A-Z]/,
+    ]
+
+    constructor(private readonly ormMatcher: OrmTypeMatcher) {}
+
+    /**
+     * Checks if a method name follows domain language conventions
+     */
+    public isDomainMethodName(methodName: string): boolean {
+        if (this.ormMatcher.isTechnicalMethod(methodName)) {
+            return false
+        }
+
+        return this.domainMethodPatterns.some((pattern) => pattern.test(methodName))
+    }
+
+    /**
+     * Suggests better domain method names
+     */
+    public suggestDomainMethodName(methodName: string): string {
+        const lowerName = methodName.toLowerCase()
+        const suggestions: string[] = []
+
+        this.collectSuggestions(lowerName, suggestions)
+
+        if (lowerName.includes("get") && lowerName.includes("all")) {
+            suggestions.push(
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_ALL,
+                REPOSITORY_METHOD_SUGGESTIONS.LIST_ALL,
+            )
+        }
+
+        if (suggestions.length === 0) {
+            return REPOSITORY_METHOD_SUGGESTIONS.DEFAULT_SUGGESTION
+        }
+
+        return `Consider: ${suggestions.slice(0, 3).join(", ")}`
+    }
+
+    /**
+     * Collects method name suggestions based on keywords
+     */
+    private collectSuggestions(lowerName: string, suggestions: string[]): void {
+        const suggestionMap: Record<string, string[]> = {
+            query: [
+                REPOSITORY_METHOD_SUGGESTIONS.SEARCH,
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
+            ],
+            select: [
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
+                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
+            ],
+            insert: [
+                REPOSITORY_METHOD_SUGGESTIONS.CREATE,
+                REPOSITORY_METHOD_SUGGESTIONS.ADD_ENTITY,
+                REPOSITORY_METHOD_SUGGESTIONS.STORE_ENTITY,
+            ],
+            update: [
+                REPOSITORY_METHOD_SUGGESTIONS.UPDATE,
+                REPOSITORY_METHOD_SUGGESTIONS.MODIFY_ENTITY,
+            ],
+            upsert: [
+                REPOSITORY_METHOD_SUGGESTIONS.SAVE,
+                REPOSITORY_METHOD_SUGGESTIONS.STORE_ENTITY,
+            ],
+            remove: [
+                REPOSITORY_METHOD_SUGGESTIONS.DELETE,
+                REPOSITORY_METHOD_SUGGESTIONS.REMOVE_BY_PROPERTY,
+            ],
+            fetch: [
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
+                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
+            ],
+            retrieve: [
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
+                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
+            ],
+            load: [
+                REPOSITORY_METHOD_SUGGESTIONS.FIND_BY_PROPERTY,
+                REPOSITORY_METHOD_SUGGESTIONS.GET_ENTITY,
+            ],
+        }
+
+        for (const [keyword, keywords] of Object.entries(suggestionMap)) {
+            if (lowerName.includes(keyword)) {
+                suggestions.push(...keywords)
+            }
+        }
+    }
+}

packages/guardian/src/infrastructure/strategies/OrmTypeMatcher.ts

@@ -0,0 +1,68 @@
+import { ORM_QUERY_METHODS } from "../constants/orm-methods"
+import { REPOSITORY_PATTERN_MESSAGES } from "../../domain/constants/Messages"
+
+/**
+ * Matches and validates ORM-specific types and patterns
+ *
+ * Identifies ORM-specific types (Prisma, TypeORM, Mongoose, etc.)
+ * that should not appear in domain layer repository interfaces.
+ */
+export class OrmTypeMatcher {
+    private readonly ormTypePatterns = [
+        /Prisma\./,
+        /PrismaClient/,
+        /TypeORM/,
+        /@Entity/,
+        /@Column/,
+        /@PrimaryColumn/,
+        /@PrimaryGeneratedColumn/,
+        /@ManyToOne/,
+        /@OneToMany/,
+        /@ManyToMany/,
+        /@JoinColumn/,
+        /@JoinTable/,
+        /Mongoose\./,
+        /Schema/,
+        /Model</,
+        /Document/,
+        /Sequelize\./,
+        /DataTypes\./,
+        /FindOptions/,
+        /WhereOptions/,
+        /IncludeOptions/,
+        /QueryInterface/,
+        /MikroORM/,
+        /EntityManager/,
+        /EntityRepository/,
+        /Collection</,
+    ]
+
+    /**
+     * Checks if a type name is an ORM-specific type
+     */
+    public isOrmType(typeName: string): boolean {
+        return this.ormTypePatterns.some((pattern) => pattern.test(typeName))
+    }
+
+    /**
+     * Extracts ORM type name from a code line
+     */
+    public extractOrmType(line: string): string {
+        for (const pattern of this.ormTypePatterns) {
+            const match = line.match(pattern)
+            if (match) {
+                const startIdx = match.index || 0
+                const typeMatch = /[\w.]+/.exec(line.slice(startIdx))
+                return typeMatch ? typeMatch[0] : REPOSITORY_PATTERN_MESSAGES.UNKNOWN_TYPE
+            }
+        }
+        return REPOSITORY_PATTERN_MESSAGES.UNKNOWN_TYPE
+    }
+
+    /**
+     * Checks if a method name is a technical ORM method
+     */
+    public isTechnicalMethod(methodName: string): boolean {
+        return (ORM_QUERY_METHODS as readonly string[]).includes(methodName)
+    }
+}

packages/guardian/src/infrastructure/strategies/RepositoryFileAnalyzer.ts

@@ -0,0 +1,31 @@
+import { LAYERS } from "../../shared/constants/rules"
+
+/**
+ * Analyzes files to determine their role in the repository pattern
+ *
+ * Identifies repository interfaces and use cases based on file paths
+ * and architectural layer conventions.
+ */
+export class RepositoryFileAnalyzer {
+    /**
+     * Checks if a file is a repository interface
+     */
+    public isRepositoryInterface(filePath: string, layer: string | undefined): boolean {
+        if (layer !== LAYERS.DOMAIN) {
+            return false
+        }
+
+        return /I[A-Z]\w*Repository\.ts$/.test(filePath) && /repositories?\//.test(filePath)
+    }
+
+    /**
+     * Checks if a file is a use case
+     */
+    public isUseCase(filePath: string, layer: string | undefined): boolean {
+        if (layer !== LAYERS.APPLICATION) {
+            return false
+        }
+
+        return /use-cases?\//.test(filePath) && /[A-Z][a-z]+[A-Z]\w*\.ts$/.test(filePath)
+    }
+}

packages/guardian/src/infrastructure/strategies/RepositoryViolationDetector.ts

@@ -0,0 +1,285 @@
+import { RepositoryViolation } from "../../domain/value-objects/RepositoryViolation"
+import { LAYERS, REPOSITORY_VIOLATION_TYPES } from "../../shared/constants/rules"
+import { REPOSITORY_PATTERN_MESSAGES } from "../../domain/constants/Messages"
+import { OrmTypeMatcher } from "./OrmTypeMatcher"
+import { MethodNameValidator } from "./MethodNameValidator"
+
+/**
+ * Detects specific repository pattern violations
+ *
+ * Handles detection of ORM types, non-domain methods, concrete repositories,
+ * and repository instantiation violations.
+ */
+export class RepositoryViolationDetector {
+    constructor(
+        private readonly ormMatcher: OrmTypeMatcher,
+        private readonly methodValidator: MethodNameValidator,
+    ) {}
+
+    /**
+     * Detects ORM types in repository interface
+     */
+    public detectOrmTypes(
+        code: string,
+        filePath: string,
+        layer: string | undefined,
+    ): RepositoryViolation[] {
+        const violations: RepositoryViolation[] = []
+        const lines = code.split("\n")
+
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i]
+            const lineNumber = i + 1
+
+            this.detectOrmInMethod(line, lineNumber, filePath, layer, violations)
+            this.detectOrmInLine(line, lineNumber, filePath, layer, violations)
+        }
+
+        return violations
+    }
+
+    /**
+     * Detects non-domain method names
+     */
+    public detectNonDomainMethods(
+        code: string,
+        filePath: string,
+        layer: string | undefined,
+    ): RepositoryViolation[] {
+        const violations: RepositoryViolation[] = []
+        const lines = code.split("\n")
+
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i]
+            const lineNumber = i + 1
+
+            const methodMatch = /^\s*(\w+)\s*\(/.exec(line)
+
+            if (methodMatch) {
+                const methodName = methodMatch[1]
+
+                if (
+                    !this.methodValidator.isDomainMethodName(methodName) &&
+                    !line.trim().startsWith("//")
+                ) {
+                    const suggestion = this.methodValidator.suggestDomainMethodName(methodName)
+                    violations.push(
+                        RepositoryViolation.create(
+                            REPOSITORY_VIOLATION_TYPES.NON_DOMAIN_METHOD_NAME,
+                            filePath,
+                            layer || LAYERS.DOMAIN,
+                            lineNumber,
+                            `Method '${methodName}' uses technical name instead of domain language. ${suggestion}`,
+                            undefined,
+                            undefined,
+                            methodName,
+                        ),
+                    )
+                }
+            }
+        }
+
+        return violations
+    }
+
+    /**
+     * Detects concrete repository usage
+     */
+    public detectConcreteRepositoryUsage(
+        code: string,
+        filePath: string,
+        layer: string | undefined,
+    ): RepositoryViolation[] {
+        const violations: RepositoryViolation[] = []
+        const lines = code.split("\n")
+
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i]
+            const lineNumber = i + 1
+
+            this.detectConcreteInConstructor(line, lineNumber, filePath, layer, violations)
+            this.detectConcreteInField(line, lineNumber, filePath, layer, violations)
+        }
+
+        return violations
+    }
+
+    /**
+     * Detects new Repository() instantiation
+     */
+    public detectNewInstantiation(
+        code: string,
+        filePath: string,
+        layer: string | undefined,
+    ): RepositoryViolation[] {
+        const violations: RepositoryViolation[] = []
+        const lines = code.split("\n")
+
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i]
+            const lineNumber = i + 1
+
+            const newRepositoryMatch = /new\s+([A-Z]\w*Repository)\s*\(/.exec(line)
+
+            if (newRepositoryMatch && !line.trim().startsWith("//")) {
+                const repositoryName = newRepositoryMatch[1]
+                violations.push(
+                    RepositoryViolation.create(
+                        REPOSITORY_VIOLATION_TYPES.NEW_REPOSITORY_IN_USE_CASE,
+                        filePath,
+                        layer || LAYERS.APPLICATION,
+                        lineNumber,
+                        `Use case creates repository with 'new ${repositoryName}()'`,
+                        undefined,
+                        repositoryName,
+                    ),
+                )
+            }
+        }
+
+        return violations
+    }
+
+    /**
+     * Detects ORM types in method signatures
+     */
+    private detectOrmInMethod(
+        line: string,
+        lineNumber: number,
+        filePath: string,
+        layer: string | undefined,
+        violations: RepositoryViolation[],
+    ): void {
+        const methodMatch =
+            /(\w+)\s*\([^)]*:\s*([^)]+)\)\s*:\s*.*?(?:Promise<([^>]+)>|([A-Z]\w+))/.exec(line)
+
+        if (methodMatch) {
+            const params = methodMatch[2]
+            const returnType = methodMatch[3] || methodMatch[4]
+
+            if (this.ormMatcher.isOrmType(params)) {
+                const ormType = this.ormMatcher.extractOrmType(params)
+                violations.push(
+                    RepositoryViolation.create(
+                        REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
+                        filePath,
+                        layer || LAYERS.DOMAIN,
+                        lineNumber,
+                        `Method parameter uses ORM type: ${ormType}`,
+                        ormType,
+                    ),
+                )
+            }
+
+            if (returnType && this.ormMatcher.isOrmType(returnType)) {
+                const ormType = this.ormMatcher.extractOrmType(returnType)
+                violations.push(
+                    RepositoryViolation.create(
+                        REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
+                        filePath,
+                        layer || LAYERS.DOMAIN,
+                        lineNumber,
+                        `Method return type uses ORM type: ${ormType}`,
+                        ormType,
+                    ),
+                )
+            }
+        }
+    }
+
+    /**
+     * Detects ORM types in general code line
+     */
+    private detectOrmInLine(
+        line: string,
+        lineNumber: number,
+        filePath: string,
+        layer: string | undefined,
+        violations: RepositoryViolation[],
+    ): void {
+        if (this.ormMatcher.isOrmType(line) && !line.trim().startsWith("//")) {
+            const ormType = this.ormMatcher.extractOrmType(line)
+            violations.push(
+                RepositoryViolation.create(
+                    REPOSITORY_VIOLATION_TYPES.ORM_TYPE_IN_INTERFACE,
+                    filePath,
+                    layer || LAYERS.DOMAIN,
+                    lineNumber,
+                    `Repository interface contains ORM-specific type: ${ormType}`,
+                    ormType,
+                ),
+            )
+        }
+    }
+
+    /**
+     * Detects concrete repository in constructor
+     */
+    private detectConcreteInConstructor(
+        line: string,
+        lineNumber: number,
+        filePath: string,
+        layer: string | undefined,
+        violations: RepositoryViolation[],
+    ): void {
+        const constructorParamMatch =
+            /constructor\s*\([^)]*(?:private|public|protected)\s+(?:readonly\s+)?(\w+)\s*:\s*([A-Z]\w*Repository)/.exec(
+                line,
+            )
+
+        if (constructorParamMatch) {
+            const repositoryType = constructorParamMatch[2]
+
+            if (!repositoryType.startsWith("I")) {
+                violations.push(
+                    RepositoryViolation.create(
+                        REPOSITORY_VIOLATION_TYPES.CONCRETE_REPOSITORY_IN_USE_CASE,
+                        filePath,
+                        layer || LAYERS.APPLICATION,
+                        lineNumber,
+                        `Use case depends on concrete repository '${repositoryType}'`,
+                        undefined,
+                        repositoryType,
+                    ),
+                )
+            }
+        }
+    }
+
+    /**
+     * Detects concrete repository in field
+     */
+    private detectConcreteInField(
+        line: string,
+        lineNumber: number,
+        filePath: string,
+        layer: string | undefined,
+        violations: RepositoryViolation[],
+    ): void {
+        const fieldMatch =
+            /(?:private|public|protected)\s+(?:readonly\s+)?(\w+)\s*:\s*([A-Z]\w*Repository)/.exec(
+                line,
+            )
+
+        if (fieldMatch) {
+            const repositoryType = fieldMatch[2]
+
+            if (
+                !repositoryType.startsWith("I") &&
+                !line.includes(REPOSITORY_PATTERN_MESSAGES.CONSTRUCTOR)
+            ) {
+                violations.push(
+                    RepositoryViolation.create(
+                        REPOSITORY_VIOLATION_TYPES.CONCRETE_REPOSITORY_IN_USE_CASE,
+                        filePath,
+                        layer || LAYERS.APPLICATION,
+                        lineNumber,
+                        `Use case field uses concrete repository '${repositoryType}'`,
+                        undefined,
+                        repositoryType,
+                    ),
+                )
+            }
+        }
+    }
+}

packages/guardian/src/shared/constants/index.ts

@@ -86,6 +86,7 @@ export const SEVERITY_ORDER: Record<SeverityLevel, number> = {
  * Violation type to severity mapping
  */
 export const VIOLATION_SEVERITY_MAP = {
+    SECRET_EXPOSURE: SEVERITY_LEVELS.CRITICAL,
     CIRCULAR_DEPENDENCY: SEVERITY_LEVELS.CRITICAL,
     REPOSITORY_PATTERN: SEVERITY_LEVELS.CRITICAL,
     AGGREGATE_BOUNDARY: SEVERITY_LEVELS.CRITICAL,

packages/guardian/src/shared/constants/rules.ts

@@ -11,6 +11,7 @@ export const RULES = {
     DEPENDENCY_DIRECTION: "dependency-direction",
     REPOSITORY_PATTERN: "repository-pattern",
     AGGREGATE_BOUNDARY: "aggregate-boundary",
+    SECRET_EXPOSURE: "secret-exposure",
 } as const
 
 /**

packages/guardian/tests/unit/domain/SecretViolation.test.ts

@@ -0,0 +1,344 @@
+import { describe, it, expect } from "vitest"
+import { SecretViolation } from "../../../src/domain/value-objects/SecretViolation"
+
+describe("SecretViolation", () => {
+    describe("create", () => {
+        it("should create a secret violation with all properties", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "AKIA1234567890ABCDEF",
+            )
+
+            expect(violation.file).toBe("src/config/aws.ts")
+            expect(violation.line).toBe(10)
+            expect(violation.column).toBe(15)
+            expect(violation.secretType).toBe("AWS Access Key")
+            expect(violation.matchedPattern).toBe("AKIA1234567890ABCDEF")
+        })
+
+        it("should create a secret violation with GitHub token", () => {
+            const violation = SecretViolation.create(
+                "src/config/github.ts",
+                5,
+                20,
+                "GitHub Personal Access Token",
+                "ghp_1234567890abcdefghijklmnopqrstuv",
+            )
+
+            expect(violation.secretType).toBe("GitHub Personal Access Token")
+            expect(violation.file).toBe("src/config/github.ts")
+        })
+
+        it("should create a secret violation with NPM token", () => {
+            const violation = SecretViolation.create(
+                ".npmrc",
+                1,
+                1,
+                "NPM Token",
+                "npm_abc123xyz",
+            )
+
+            expect(violation.secretType).toBe("NPM Token")
+        })
+    })
+
+    describe("getters", () => {
+        it("should return file path", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.file).toBe("src/config/aws.ts")
+        })
+
+        it("should return line number", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.line).toBe(10)
+        })
+
+        it("should return column number", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.column).toBe(15)
+        })
+
+        it("should return secret type", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.secretType).toBe("AWS Access Key")
+        })
+
+        it("should return matched pattern", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "AKIA1234567890ABCDEF",
+            )
+
+            expect(violation.matchedPattern).toBe("AKIA1234567890ABCDEF")
+        })
+    })
+
+    describe("getMessage", () => {
+        it("should return formatted message for AWS Access Key", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.getMessage()).toBe("Hardcoded AWS Access Key detected")
+        })
+
+        it("should return formatted message for GitHub token", () => {
+            const violation = SecretViolation.create(
+                "src/config/github.ts",
+                5,
+                20,
+                "GitHub Token",
+                "test",
+            )
+
+            expect(violation.getMessage()).toBe("Hardcoded GitHub Token detected")
+        })
+
+        it("should return formatted message for NPM token", () => {
+            const violation = SecretViolation.create(
+                ".npmrc",
+                1,
+                1,
+                "NPM Token",
+                "test",
+            )
+
+            expect(violation.getMessage()).toBe("Hardcoded NPM Token detected")
+        })
+    })
+
+    describe("getSuggestion", () => {
+        it("should return multi-line suggestion", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            const suggestion = violation.getSuggestion()
+
+            expect(suggestion).toContain("1. Use environment variables")
+            expect(suggestion).toContain("2. Use secret management services")
+            expect(suggestion).toContain("3. Never commit secrets")
+            expect(suggestion).toContain("4. If secret was committed, rotate it immediately")
+            expect(suggestion).toContain("5. Add secret files to .gitignore")
+        })
+
+        it("should return the same suggestion for all secret types", () => {
+            const awsViolation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            const githubViolation = SecretViolation.create(
+                "src/config/github.ts",
+                5,
+                20,
+                "GitHub Token",
+                "test",
+            )
+
+            expect(awsViolation.getSuggestion()).toBe(githubViolation.getSuggestion())
+        })
+    })
+
+    describe("getExampleFix", () => {
+        it("should return AWS-specific example for AWS Access Key", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("AWS")
+            expect(example).toContain("process.env.AWS_ACCESS_KEY_ID")
+            expect(example).toContain("fromEnv")
+        })
+
+        it("should return GitHub-specific example for GitHub token", () => {
+            const violation = SecretViolation.create(
+                "src/config/github.ts",
+                5,
+                20,
+                "GitHub Token",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("GitHub")
+            expect(example).toContain("process.env.GITHUB_TOKEN")
+            expect(example).toContain("GitHub Apps")
+        })
+
+        it("should return NPM-specific example for NPM token", () => {
+            const violation = SecretViolation.create(
+                ".npmrc",
+                1,
+                1,
+                "NPM Token",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("NPM")
+            expect(example).toContain(".npmrc")
+            expect(example).toContain("process.env.NPM_TOKEN")
+        })
+
+        it("should return SSH-specific example for SSH Private Key", () => {
+            const violation = SecretViolation.create(
+                "src/config/ssh.ts",
+                1,
+                1,
+                "SSH Private Key",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("SSH")
+            expect(example).toContain("readFileSync")
+            expect(example).toContain("SSH_KEY_PATH")
+        })
+
+        it("should return SSH RSA-specific example for SSH RSA Private Key", () => {
+            const violation = SecretViolation.create(
+                "src/config/ssh.ts",
+                1,
+                1,
+                "SSH RSA Private Key",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("SSH")
+            expect(example).toContain("RSA PRIVATE KEY")
+        })
+
+        it("should return Slack-specific example for Slack token", () => {
+            const violation = SecretViolation.create(
+                "src/config/slack.ts",
+                1,
+                1,
+                "Slack Bot Token",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("Slack")
+            expect(example).toContain("process.env.SLACK_BOT_TOKEN")
+        })
+
+        it("should return API Key example for generic API key", () => {
+            const violation = SecretViolation.create(
+                "src/config/api.ts",
+                1,
+                1,
+                "API Key",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("API")
+            expect(example).toContain("process.env.API_KEY")
+            expect(example).toContain("SecretsManager")
+        })
+
+        it("should return generic example for unknown secret type", () => {
+            const violation = SecretViolation.create(
+                "src/config/unknown.ts",
+                1,
+                1,
+                "Unknown Secret",
+                "test",
+            )
+
+            const example = violation.getExampleFix()
+
+            expect(example).toContain("process.env.SECRET_KEY")
+            expect(example).toContain("secret management")
+        })
+    })
+
+    describe("getSeverity", () => {
+        it("should always return critical severity", () => {
+            const violation = SecretViolation.create(
+                "src/config/aws.ts",
+                10,
+                15,
+                "AWS Access Key",
+                "test",
+            )
+
+            expect(violation.getSeverity()).toBe("critical")
+        })
+
+        it("should return critical severity for all secret types", () => {
+            const types = [
+                "AWS Access Key",
+                "GitHub Token",
+                "NPM Token",
+                "SSH Private Key",
+                "Slack Token",
+                "API Key",
+            ]
+
+            types.forEach((type) => {
+                const violation = SecretViolation.create("test.ts", 1, 1, type, "test")
+                expect(violation.getSeverity()).toBe("critical")
+            })
+        })
+    })
+})

packages/guardian/tests/unit/infrastructure/SecretDetector.test.ts

@@ -0,0 +1,277 @@
+import { describe, it, expect, beforeEach } from "vitest"
+import { SecretDetector } from "../../../src/infrastructure/analyzers/SecretDetector"
+
+describe("SecretDetector", () => {
+    let detector: SecretDetector
+
+    beforeEach(() => {
+        detector = new SecretDetector()
+    })
+
+    describe("detectAll", () => {
+        it("should return empty array for code without secrets", async () => {
+            const code = `
+                const greeting = "Hello World"
+                const count = 42
+                function test() {
+                    return true
+                }
+            `
+
+            const violations = await detector.detectAll(code, "test.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should return empty array for normal environment variable usage", async () => {
+            const code = `
+                const apiKey = process.env.API_KEY
+                const dbUrl = process.env.DATABASE_URL
+            `
+
+            const violations = await detector.detectAll(code, "config.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle empty code", async () => {
+            const violations = await detector.detectAll("", "empty.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle code with only comments", async () => {
+            const code = `
+                // This is a comment
+                /* Multi-line
+                   comment */
+            `
+
+            const violations = await detector.detectAll(code, "comments.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle multiline strings without secrets", async () => {
+            const code = `
+                const template = \`
+                    Hello World
+                    This is a test
+                    No secrets here
+                \`
+            `
+
+            const violations = await detector.detectAll(code, "template.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle code with URLs", async () => {
+            const code = `
+                const apiUrl = "https://api.example.com/v1"
+                const websiteUrl = "http://localhost:3000"
+            `
+
+            const violations = await detector.detectAll(code, "urls.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle imports and requires", async () => {
+            const code = `
+                import { something } from "some-package"
+                const fs = require('fs')
+            `
+
+            const violations = await detector.detectAll(code, "imports.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should return violations with correct file path", async () => {
+            const code = `const secret = "test-secret-value"`
+            const filePath = "src/config/secrets.ts"
+
+            const violations = await detector.detectAll(code, filePath)
+
+            violations.forEach((v) => {
+                expect(v.file).toBe(filePath)
+            })
+        })
+
+        it("should handle .js files", async () => {
+            const code = `const test = "value"`
+
+            const violations = await detector.detectAll(code, "test.js")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle .jsx files", async () => {
+            const code = `const Component = () => <div>Test</div>`
+
+            const violations = await detector.detectAll(code, "Component.jsx")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle .tsx files", async () => {
+            const code = `const Component: React.FC = () => <div>Test</div>`
+
+            const violations = await detector.detectAll(code, "Component.tsx")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle errors gracefully", async () => {
+            const code = null as unknown as string
+
+            const violations = await detector.detectAll(code, "test.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle malformed code gracefully", async () => {
+            const code = "const = = ="
+
+            const violations = await detector.detectAll(code, "malformed.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+    })
+
+    describe("parseOutputToViolations", () => {
+        it("should parse empty output", async () => {
+            const code = ""
+
+            const violations = await detector.detectAll(code, "test.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+
+        it("should handle whitespace-only output", async () => {
+            const code = "   \n   \n   "
+
+            const violations = await detector.detectAll(code, "test.ts")
+
+            expect(violations).toHaveLength(0)
+        })
+    })
+
+    describe("extractSecretType", () => {
+        it("should handle various secret types correctly", async () => {
+            const code = `const value = "test"`
+
+            const violations = await detector.detectAll(code, "test.ts")
+
+            violations.forEach((v) => {
+                expect(v.secretType).toBeTruthy()
+                expect(typeof v.secretType).toBe("string")
+                expect(v.secretType.length).toBeGreaterThan(0)
+            })
+        })
+    })
+
+    describe("integration", () => {
+        it("should work with TypeScript code", async () => {
+            const code = `
+                interface Config {
+                    apiKey: string
+                }
+
+                const config: Config = {
+                    apiKey: process.env.API_KEY || "default"
+                }
+            `
+
+            const violations = await detector.detectAll(code, "config.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should work with ES6+ syntax", async () => {
+            const code = `
+                const fetchData = async () => {
+                    const response = await fetch(url)
+                    return response.json()
+                }
+
+                const [data, setData] = useState(null)
+            `
+
+            const violations = await detector.detectAll(code, "hooks.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should work with JSX/TSX", async () => {
+            const code = `
+                export const Button = ({ onClick }: Props) => {
+                    return <button onClick={onClick}>Click me</button>
+                }
+            `
+
+            const violations = await detector.detectAll(code, "Button.tsx")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle concurrent detections", async () => {
+            const code1 = "const test1 = 'value1'"
+            const code2 = "const test2 = 'value2'"
+            const code3 = "const test3 = 'value3'"
+
+            const [result1, result2, result3] = await Promise.all([
+                detector.detectAll(code1, "file1.ts"),
+                detector.detectAll(code2, "file2.ts"),
+                detector.detectAll(code3, "file3.ts"),
+            ])
+
+            expect(result1).toBeInstanceOf(Array)
+            expect(result2).toBeInstanceOf(Array)
+            expect(result3).toBeInstanceOf(Array)
+        })
+    })
+
+    describe("edge cases", () => {
+        it("should handle very long code", async () => {
+            const longCode = "const value = 'test'\n".repeat(1000)
+
+            const violations = await detector.detectAll(longCode, "long.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle special characters in code", async () => {
+            const code = `
+                const special = "!@#$%^&*()_+-=[]{}|;:',.<>?"
+                const unicode = "日本語 🚀"
+            `
+
+            const violations = await detector.detectAll(code, "special.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle code with regex patterns", async () => {
+            const code = `
+                const pattern = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,}$/i
+                const matches = text.match(pattern)
+            `
+
+            const violations = await detector.detectAll(code, "regex.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+
+        it("should handle code with template literals", async () => {
+            const code = `
+                const message = \`Hello \${name}, your balance is \${balance}\`
+            `
+
+            const violations = await detector.detectAll(code, "template.ts")
+
+            expect(violations).toBeInstanceOf(Array)
+        })
+    })
+})