Mace-Enterprise Peer review (cross-model, via Codex)
A different model reviews a concrete diff as a peer reviewer — catches what a
same-model review misses. Codex enacts our role-code-reviewer brief, so the
output matches our own review format. Read-only; Codex advises, we decide.
When
Before merging a non-trivial change/PR, or for an independent check on risky code. Not on every commit (costs credits, fresh session). Confirm first unless the user said "peer-review it".
How
codex exec -C <repo> -s read-only "PEER REVIEW. Enact the reviewer brief in Wiki/roster/role-code-reviewer.md.
Review this change: <git diff base..head, or name the files/SHAs>.
Return: Strengths · Issues (Critical/Important/Minor, each with file:line + why) · Verdict (ship / fix-first / reject).
Be concrete. Read-only — change nothing."
Give it the diff or the base/head SHAs + changed files; -C <repo> lets it read the surrounding code.
After
Relay the review, then add your take: which issues are real, which miss our context. Fix Critical before merge. Codex advises; we decide.
Notes
- Read-only only — never a write sandbox for review.
- Fresh session → pass context in the prompt; never feed it secrets.
- Setup + gotchas (upgrade CLI if model errors): see [[codex-cross-model-integration]].
Status: probation — promote to active after a verified win.