# Review by Andrej Karpathy (Round 2)

## Review Complete — Andrej Karpathy (Round 1)

**VERDICT: approve** ✅

All 5 functional requirements are implemented. The fix is exactly right-sized: 11 lines added to `learn.md`, 25 lines of regression tests, zero changes to the enforcement layer or agent code.

**Key observations:**
- This is a textbook **prompt-program alignment bug** — the prompt referenced capabilities the runtime didn't provide. The fix aligns the two layers.
- The **consequence-based negative constraint** ("will cause a fatal error") is good prompt engineering — models comply better when they understand stakes.
- The **copy-pasteable Glob pattern** (`{reviews_dir}/**/*.md`) reduces stochastic surface area vs. abstract descriptions.
- **Defense in depth** is now properly layered: CLI enforcement (hard reject) + prompt instruction (prevents the attempt).
- Both new tests pass. No regressions.

Review artifact written to `cOS_reviews/reviews/andrej_karpathy/20260401_130207_round1_you_are_a_code_assistant_working_on_behalf_of_the_engineering_team_the_following.md`.