# Compact Status - 17-10-2025

**Focus**: Comprehensive pre-PR review fixes for task dependencies feature (v0.3.0)

**Key Accomplishments**:
- ✅ Fixed documentation contradictions (FEATURES.md, CLAUDE.md, README.md)
- ✅ Un-skipped and fixed 2 critical cycle detection tests (discovered INSERT OR REPLACE + CASCADE DELETE bug)
- ✅ Implemented handler-level graph cache to fix N+1 query pattern
- ✅ Added TOCTOU race condition protection test (safe verification approach)
- ✅ Added composite database index for query optimization
- ✅ All 51 tests passing (100% success rate)
- ✅ Committed and pushed all changes to PR #9

**Critical Decisions**:
- **Don't re-save tasks in tests**: INSERT OR REPLACE triggers CASCADE DELETE, destroying dependencies. Handler only needs events.
- **Handler-level graph caching**: Repository cache bypassed by repeated findAll() calls. Cache at handler level with event invalidation.
- **Safe TOCTOU testing**: Test that protection works (concurrent A→B and B→A) instead of trying to exploit vulnerability.

**Next Priority Actions**:
- [ ] Monitor CI completion on PR #9 (currently in progress)
- [ ] Complete CLI integration for --depends-on flag (167 lines uncommitted)
- [ ] Update MCP adapter to expose dependsOn parameter
- [ ] Decide fate of uncommitted architecture docs (ARCHITECTURE_QUICK_REFERENCE.md, TASK_ARCHITECTURE.md)

**Critical Issues**:
- None currently blocking - all review findings addressed

**Key Files Modified**:
- `docs/FEATURES.md` - Moved task dependencies to implemented section
- `CLAUDE.md` - Added dependsOn field to task specification
- `src/services/handlers/dependency-handler.ts` - Handler-level graph cache
- `src/implementations/database.ts` - Composite index for optimization
- `tests/unit/services/handlers/dependency-handler.test.ts` - Fixed 2 skipped tests
- `tests/unit/implementations/dependency-repository.test.ts` - Added TOCTOU test

**Context Notes**:
Session was continuation from previous context overflow. Completed all 13 tasks from comprehensive review (100% completion). Discovered critical INSERT OR REPLACE + CASCADE DELETE interaction bug in test setup. PR #9 is now MERGEABLE and awaiting review with CI running. Uncommitted changes: src/cli.ts (CLI flag), ARCHITECTURE_QUICK_REFERENCE.md (14KB), TASK_ARCHITECTURE.md (26KB).

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*Quick summary of [full status](./../17-10-2025_1821.md)*
