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Run an independent code review using the OpenAI Codex CLI in headless mode. Gets a second opinion from a different model family (the current Codex models) on recent changes, a PR, a commit, or the whole app — covering bugs, regressions, security, data consistency, UX/state bugs, performance risks, and testing gaps. Saves a severity-prioritised report to .jez/reviews/. Triggers: 'codex review', 'review with codex', 'independent code review', 'what does codex think', 'get codex to review'.
Passed 6 of 14 test cases with the skill, and 2 of 14 without it.
and 10 more in the full report
8 fixed2 passed either way11 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
Run a Codex review on my uncommitted code modifications. Note that running `which codex` returned no output on my system.
| Checked | Without skill | With skill |
|---|---|---|
| Stops review execution when binary check fails | Passed | Passed |
| Instructs user to install CLI using brew install codex | Missed | Passed |
The instructions your model reads when the skill loads.
Run an independent code review via the OpenAI Codex CLI (codex review). The value is a second opinion from a different model family than the one that wrote the code — Codex catches things Claude misses due to author bias.
Complements brains-trust (generic multi-model opinions). This skill is specialised: git-aware, uses a tuned review prompt, saves structured output.
Do NOT use for:
brains-trust insteadConfirm Codex CLI is installed:
which codex
If missing: tell the user to install it (brew install codex on macOS, or see https://github.com/openai/codex) and stop. Do not continue.
Confirm auth: the first codex review call will fail clearly if not logged in. If that happens, instruct the user to run codex login and stop.
Pick the scope flag based on what the user asked for:
| User intent | Flag |
|---|---|
| "codex review" / "review the app" / "full review" / default | no flag (reviews whole app at current HEAD) |
| "review my changes" / "review what I just did" / "review uncommitted" | --uncommitted |
| "review this branch vs main" / "review the PR" | --base main (or the branch they name) |
| "review commit abc123" | --commit abc123 |
test cases passed, vs 2 / 14 without
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