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cmux-review

Review agent-written code changes before merge, focusing on concrete correctness defects. Uses independent subagent reviews, targeted verification, and fresh checks after substantial repairs, with a deeper evidence-based process for security, concurrency, persistence, or data-loss risks.

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Review agent-written changes before merge, after substantial edits, or when re-reviewing a repair. Use the adversarial protocol for high-risk changes or an explicitly requested deep review.

See how to install

Good for

  • Reviewing agent-written changes before merge
  • Rechecking a substantial bug fix
  • Examining security, concurrency, or data-loss risks
  • Reporting review evidence and coverage gaps

Files included (6)

  • SKILL.md2.8 KB
  • references/dogfood-and-merge.md3.8 KB
  • references/review-discovery.md5.7 KB
  • references/review-receipt.schema.json12.1 KB
  • references/review-receipts.md5.3 KB
  • references/review-verification.md2.9 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

cmux Review

Review to reduce developer attention. Surface concrete correctness defects; suppress style, nits and speculative improvements unless requested.

Default pre-merge review

  1. Give a review subagent the task intent, base/head SHAs and exact diff. Ask for correctness first, then repository rules; keep discovery independent of the author's reasoning. Review policy edits against the base-branch rules.
  2. Verify concrete findings, fix them when authorized, and push. Re-run the original discriminator after repair. A green test counts only if it exercises the asserted failure; prefer red-before/green-after evidence.
  3. If fixes were non-trivial, obtain a fresh subagent review of the repair delta.
  4. Merge when the review subagent passes the change and it causes no red of its own (see below). Report findings with evidence, verification performed and coverage gaps.

Use subagents in the current runtime, not a second model or external review service as a gate. Keep review read-only until an authorized repair. Do not commit review receipts, scratch reproductions or generated logs.

Dogfood and merge

For implementation handoff or merge, read dogfood and merge for per-change verification, first-pass completion, re-dogfood and merge receipts. The main agent owns dogfood, mergeability, the merge and every pushed fix. A PR merges when an independent review subagent passes it and it causes no red of its own; base reds, flakes and pending checks don't hold it. Don't wait for a person. Ship risky user-visible behavior behind a setting or Debug toggle and fix a bad default in the next nightly. main is nightly: stack fixes, do not revert.

Adversarial review

For security, persistence, concurrency, data-loss risks, or a requested deep review, use the full protocol:

These stages retain the advanced evidence protocol; ordinary reviews use the short default pass above.

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