# Dependencies Audit Report

**Branch**: fix/tech-debt-v0.3.2
**Base**: main
**Date**: 2025-12-08 20:47:00

---

## Executive Summary

This branch contains **NO dependency changes**. All modifications are to TypeScript source files and documentation. The `package.json` and `package-lock.json` files are unchanged from the main branch.

**Branch Changes**:
- `docs/architecture/HANDLER-DECOMPOSITION-INVARIANTS.md` - Documentation fixes
- `docs/architecture/TASK_ARCHITECTURE.md` - Line number updates
- `src/implementations/database.ts` - Added DB migration (CHECK constraint)
- `src/implementations/dependency-repository.ts` - Added explicit `DependencyRow` type
- `src/implementations/task-repository.ts` - Added explicit `TaskRow` type
- `src/services/handlers/dependency-handler.ts` - Made `MAX_DEPENDENCY_CHAIN_DEPTH` configurable
- `src/services/handlers/queue-handler.ts` - Replaced `getQueueStats()` with `getQueueSize()`

---

## Blocking Issues in Your Changes

**None.** This branch does not modify any dependency files.

---

## Should-Fix Issues in Code You Touched

**None.** No dependency-related issues introduced by this PR.

---

## Pre-existing Issues (Not Blocking)

### Outdated Dependencies

| Package | Current | Wanted | Latest | Severity |
|---------|---------|--------|--------|----------|
| `@types/node` | 24.3.0 | 24.10.1 | 24.10.1 | LOW |
| `better-sqlite3` | 12.4.1 | 12.5.0 | 12.5.0 | LOW |
| `simple-git` | 3.28.0 | 3.30.0 | 3.30.0 | LOW |
| `tsx` | 4.20.4 | 4.21.0 | 4.21.0 | LOW |
| `typescript` | 5.9.2 | 5.9.3 | 5.9.3 | LOW |
| `zod` | 3.25.76 | 3.25.76 | 4.1.13 | MEDIUM |
| `vitest` | 3.2.4 | 3.2.4 | 4.0.15 | MEDIUM |
| `@vitest/coverage-v8` | 3.2.4 | 3.2.4 | 4.0.15 | MEDIUM |
| `@vitest/ui` | 3.2.4 | 3.2.4 | 4.0.15 | MEDIUM |

**Analysis**:
1. **Zod 3.x -> 4.x**: Major version upgrade. Zod 4 has breaking API changes. Requires careful migration planning.
2. **Vitest 3.x -> 4.x**: Major version upgrade. May require test configuration updates.
3. **Minor/Patch updates**: Low risk, can be updated anytime.

### Security Vulnerabilities

```
npm audit: found 0 vulnerabilities
```

**Status**: CLEAN - No known CVEs in the current dependency tree.

### License Compatibility

| License | Count |
|---------|-------|
| MIT | 201 |
| ISC | 21 |
| BSD-3-Clause | 8 |
| Apache-2.0 | 5 |
| BlueOak-1.0.0 | 3 |
| (MIT OR WTFPL) | 1 |
| (BSD-2-Clause OR MIT OR Apache-2.0) | 1 |

**Status**: CLEAN - All licenses are permissive and compatible with MIT (project license).

### Dependency Metrics

| Metric | Value | Status |
|--------|-------|--------|
| Direct dependencies | 4 | GOOD |
| Direct devDependencies | 7 | GOOD |
| Total transitive dependencies | ~455 | ACCEPTABLE |
| node_modules size | 117 MB | ACCEPTABLE |
| Package size (tarball) | 5.4 kB | EXCELLENT |
| Unpacked size | 13.6 kB | EXCELLENT |

### Unused Dependencies Analysis

**Production dependencies** (all actively used):
- `@modelcontextprotocol/sdk` - Core MCP functionality (`src/adapters/mcp-adapter.ts`)
- `better-sqlite3` - Database layer (`src/implementations/database.ts`, `*-repository.ts`)
- `simple-git` - Git worktree management (`src/services/worktree-manager.ts`)
- `zod` - Configuration validation (`src/core/configuration.ts`)

**Dev dependencies** (all actively used):
- `@types/better-sqlite3` - TypeScript types for better-sqlite3
- `@types/node` - Node.js TypeScript types
- `@vitest/coverage-v8` - Test coverage
- `@vitest/ui` - Test UI
- `tsx` - TypeScript execution for development
- `typescript` - TypeScript compiler
- `vitest` - Test framework

**Status**: CLEAN - No unused dependencies detected.

### Supply Chain Considerations

| Consideration | Status | Notes |
|---------------|--------|-------|
| Lock file integrity | GOOD | `package-lock.json` with lockfileVersion 3 |
| Registry source | GOOD | All packages from npmjs.com |
| Dependency pinning | ACCEPTABLE | Using `^` semver ranges (standard practice) |
| Native modules | NOTE | `better-sqlite3` uses native bindings (requires compilation) |

---

## Summary

**Your Changes (Blocking)**:
- CRITICAL: 0
- HIGH: 0
- MEDIUM: 0
- LOW: 0

**Code You Touched (Should Fix)**:
- HIGH: 0
- MEDIUM: 0
- LOW: 0

**Pre-existing (Informational)**:
- MEDIUM: 4 (major version upgrades available for zod, vitest ecosystem)
- LOW: 5 (minor/patch updates available)

**Dependencies Score**: 9/10

**Rationale**:
- No security vulnerabilities
- No license issues
- No unused dependencies
- No dependency bloat
- Minor deduction for outdated major versions (zod, vitest)

---

## Merge Recommendation

**APPROVED**

This branch makes no changes to dependencies. All modifications are TypeScript source and documentation improvements focused on:
1. Type safety improvements (explicit row types instead of `Record<string, any>`)
2. Configurability (making `MAX_DEPENDENCY_CHAIN_DEPTH` configurable)
3. Performance optimization (replacing `getQueueStats()` with `getQueueSize()`)
4. Documentation accuracy (line number corrections)
5. Database defense-in-depth (CHECK constraint on resolution column)

No dependency-related concerns block this PR.

---

## Recommendations for Future PRs

### Priority 1: Update to Zod 4.x (Separate PR)
Zod 4.x is a major upgrade with breaking changes. Review migration guide before upgrading.

### Priority 2: Update Vitest Ecosystem (Separate PR)
Update `vitest`, `@vitest/coverage-v8`, and `@vitest/ui` together to 4.x.

### Priority 3: Apply Minor Updates
Run `npm update` to apply patch/minor updates:
- `@types/node` 24.3.0 -> 24.10.1
- `better-sqlite3` 12.4.1 -> 12.5.0
- `simple-git` 3.28.0 -> 3.30.0
- `tsx` 4.20.4 -> 4.21.0
- `typescript` 5.9.2 -> 5.9.3
