# Review by Andrej Karpathy (Round 1)

## Review Complete — Andrej Karpathy (Round 1)

VERDICT: approve

FINDINGS:
- [src/colonyos/slack_queue.py]: Queue-full warning message (line 239) is posted even for passive messages — could surprise users in busy channels. Low severity, v2 fix.
- [src/colonyos/slack_queue.py]: `is_passive` computed after dedup/rate-limit checks, which is correct — but note that in `trigger_mode: "mention"`, `is_passive` is always False by construction (only `app_mention` events bound). The code handles this correctly but the invariant is implicit.
- [src/colonyos/slack.py]: `extract_prompt_text` is clean and deterministic. No issues.
- [src/colonyos/daemon.py]: `_warn_all_mode_safety` is well-placed (after engine creation, before registration) and covers both safety configs.

SYNTHESIS:
This is a textbook example of activating a latent capability with minimal new code. The implementation correctly identifies that 90% of the infrastructure already exists (event subscriptions, dedup, triage, filters) and adds only the thin binding layer needed to wire `trigger_mode: "all"` into the event loop. The prompt extraction is simple and deterministic — no fancy NLP, just a string containment check, which is exactly what you want when the real intelligence lives in the triage LLM downstream. The 👀 reaction UX is the single most important detail in the whole feature (silent until actionable), and it's implemented correctly with the deferred-reaction pattern. Test coverage is thorough — 612 lines covering dedup races, dual-event delivery, and end-to-end flows with a 10:1 test-to-code ratio. The only nit worth tracking for v2 is the queue-full message leaking to passive messages. Ship it.

Review artifact written to `cOS_reviews/reviews/andrej_karpathy/20260401_140000_round1_you_are_a_code_assistant_working_on_behalf_of_the_engineering_team_the_following.md`.
