# Review by Andrej Karpathy (Round 3)

## Review Complete — Andrej Karpathy

**VERDICT: approve**

All 7 functional requirements implemented, 15/15 new tests pass, +373/-1 lines across 5 commits.

The implementation is exactly what I want to see: 19 lines of production code that follows existing patterns with zero deviation. Each Slack API call is in its own independent try/except, so the critical completion signal can never be blocked by cosmetic cleanup. The `remove_reaction()` helper is a thin pass-through that correctly delegates error handling to callers. Call ordering (remove `:eyes:` → add status → add `:tada:`) is verified by explicit ordering tests.

**Two non-blocking observations:**
1. The test classes simulate the completion logic rather than calling through QueueExecutor — pragmatic given the nested class complexity, but tests won't catch if cli.py drifts
2. The two test classes are ~95% identical and could be parametrized, but the duplication serves as self-documenting code

No security concerns, no new dependencies, no secrets, no cleverness. Ship it.