Codex Review Code

Delegate a code review of your local git state to the Codex CLI (command codex), running non-interactively via codex exec. This is the Codex/GPT counterpart to the gemini-review-code and claude-review-code skills: it detects what changed, captures the exact diff into a self-contained review brief, pipes it to codex exec on stdin, and returns the verdict.

The review is forced to xhigh reasoning effort (-c model_reasoning_effort=xhigh) on a GPT model, independent of whatever model the calling session uses. The point is a maximal-effort, independent second opinion — useful as the cross-agent validation step this repo requires before merging a new skill (see the root AGENTS.md), or any time you want a heavyweight GPT reviewer on a diff.

This skill is review-only. It never edits, fixes, or stages anything — its single job is to run the review and surface codex's output. If the review finds issues, present them to the user and let them decide what to fix.