# Decision Gate

Verdict: **GO**

I now have all the information needed to make my decision.

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## Decision Gate Assessment

### Persona Verdicts

| Persona | Verdict |
|---------|---------|
| Andrej Karpathy | ✅ APPROVE |
| Linus Torvalds | ✅ APPROVE |
| Principal Systems Engineer | ✅ APPROVE |
| Staff Security Engineer | ✅ APPROVE |

**Result: 4/4 approve (unanimous)**

### Findings Tally

| Severity | Finding | Status |
|----------|---------|--------|
| LOW | Dead code: `loop_state_` guard unreachable due to `run-*.json` glob | Non-blocking; harmless defensive code |
| LOW | `datetime` import inside loop body instead of top-level | Non-blocking; Python caches imports |
| LOW | `filter_runs` accepts unused `phase` parameter | Non-blocking; vestigial API |
| LOW | Phase names compared as raw strings instead of `Phase` enum | Pragmatic v1 trade-off, noted by Karpathy |
| LOW | No `logging` module usage (uses `print` to stderr) | Acceptable for v1 analytics command |
| MEDIUM | Branch includes unrelated GitHub issue integration changes | Process concern; does not affect stats code quality |

### PRD Compliance

All 8 functional requirements (FR-1 through FR-8) are implemented and tested:
- ✅ FR-1: Run Summary Panel
- ✅ FR-2: Cost Breakdown by Phase
- ✅ FR-3: Phase Failure Hotspots
- ✅ FR-4: Review Loop Efficiency
- ✅ FR-5: Duration Stats
- ✅ FR-6: Recent Trend Display
- ✅ FR-7: `--last N` and `--phase` filtering
- ✅ FR-8: Graceful edge cases (empty dir, corrupted JSON, None costs, in-progress runs)

Architecture requirement (data/render separation) is met. 65 stats-specific tests pass. All 485 total tests pass with zero regressions.

---

```
VERDICT: GO
```

### Rationale
All four review personas unanimously approve. There are no CRITICAL or HIGH findings — all issues are LOW or MEDIUM severity code hygiene nits (dead code path, import placement, unused parameter). The implementation satisfies all 8 PRD functional requirements with comprehensive test coverage (65 tests) and zero regressions. The two-layer architecture (pure compute → rendering) is clean, independently testable, and prepares for future `--json` output.

### Unresolved Issues
- (empty — no blocking issues)

### Recommendation
Merge as-is. Address the following LOW-priority nits in a follow-up cleanup PR:
1. Remove dead `loop_state_` guard in `load_run_logs`
2. Move `datetime` import to module top-level
3. Remove unused `phase` parameter from `filter_runs()` signature and call site
4. Consider using `Phase` enum values instead of raw strings for phase comparisons

The branch also carries unrelated GitHub issue integration changes — going forward, keep features on separate branches to minimize rollback blast radius.