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Referee for writer/reviewer loops between coding agents, where one tool writes code and the other reviews it in rounds: Claude Code writing while Codex reviews, or the reverse.
Passed 20 of 23 test cases with the skill, and 8 of 23 without it.
and 13 more in the full report
13 fixed7 passed either way2 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
In round 3 of a refactoring session, all must-fix issues are resolved, 0 issues are reopened, and diff is +4/-4. What specific value should be recorded in the 'verdict' column of the ledger for this final round?
| Checked | Without skill | With skill |
|---|---|---|
| Records 'clean: stop' as the verdict in the ledger | Missed | Passed |
The instructions your model reads when the skill loads.
A reviewer running on a different vendor's model catches what the writer cannot see. The two can also disagree politely forever, at your expense. The stop rules loops ship with today are "clean" and a round cap. Real loops die in ways neither covers. This skill is the stop switch and the receipt.
No extra software. The loop lives inside one agent session, and that agent is the referee. It runs alongside the loop, not instead of it. Example with Claude Code writing and Codex reviewing:
codex exec "review this diff for must-fix bugs: $(git diff)", or the
Codex plugin, or a review bot on the PR.Works the same with the roles reversed, or with any writer/reviewer pair. The stop rules bind on countable events (a reopened finding, two rounds of diff growth, the round cap), so the orchestrating agent cannot easily talk itself into one more round.
Write these down before round 1. Changing them mid-loop is how loops run away.
Append one row after every round. Never edit old rows.
test cases passed, vs 8 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.