Cross-Harness Review

Use the other coding harness as the independent reviewer, then report in the compact review verdict shape.

Workflow

1. Define the review target from the user's request: uncommitted diff, branch vs base, commit, PR, or named paths. If unspecified, review the current uncommitted diff.
2. Detect the active harness:
   • In Codex/OpenAI, invoke Claude Code for the review.
   • In Claude/Anthropic, invoke Codex for the review.
3. Run the preflight checks for the opposite harness.
4. Delegate with the shared prompt below, filled with the target.
5. Preserve the other harness's findings; note any local confirmation or dispute.
6. Stop after one other-model review unless the user explicitly asks for an iterative loop.

For CLI flag details, fallback commands, and hosted-review cautions, read references/headless-modes.md.

Preflight