# Decision Gate

Verdict: **GO**

---

```
VERDICT: GO
```

### Rationale
All four reviewing personas (Principal Systems Engineer, Linus Torvalds, Staff Security Engineer, and Andrej Karpathy) gave **APPROVE** verdicts in Round 2. The implementation addresses all 13 PRD functional requirements with 5,146 lines added across 30 files, comprehensive test coverage (1399 tests passing, 102 new parallel-mode tests), and proper security patterns. The critical Round 1 blockers—missing orchestrator integration, missing asyncio merge lock with timeout, missing per-task budget allocation, and missing conflict resolver—were all fixed in the subsequent commit.

### Unresolved Issues

- Dead code in `dag.py:topological_sort()` (10 lines computing nothing) — cleanup item
- `_parse_git_version()` duplicated in two files — DRY violation, cosmetic
- Merge lock timeout (60s) hardcoded — consider making configurable
- `conflict_strategy: manual` UX could be clearer — document post-failure behavior
- No end-to-end integration tests (all tests mock agent runner) — future improvement
- `MIN_FREE_SPACE_MB` (500MB) hardcoded — consider making configurable

### Recommendation

**Merge as-is.** The implementation is production-ready with graceful degradation to sequential mode, meaning it can be safely enabled by default. Schedule a follow-up PR to clean up the dead code, consolidate the duplicated utility function, and add configurable timeout/disk-space settings. The decision artifact has been written to `cOS_reviews/decisions/20260320_decision_parallel_implement_mode.md`.