A review skill gets a no-go on the very evidence claim it was meant to catch

Thing read. Seb Patron's owner-approved Muse review-skill tracker, September 16, 2026, checked against merged result PR #23. This is a self-run development screen in a public skills repository, with sanitized conclusions and private raw model reviews; not a blinded deployment test or a population estimate of review accuracy.

Result / decision. Three development cases each got one review with evidence-claims-v2 and v3 (six rows). The owner says v3 retained a type-boundary finding and approved an already repaired control, but falsely approved an overstated evidence claim, the particular defect v3 was designed to catch; v2 caught it in this attempt. V3 was stopped rather than shipped as an improvement. The owner manually accepted the answer keys, checked quarantined traces and left the cause of the miss undetermined; #23 reports no grader calls and notes isolation/attempt-accounting gaps before a production-versus-no-skill comparison. A six-row directional screen does not show v2 superior overall or even generalize to real PRs.

Why it matters. A coordinator's issue log can preserve a versioned negative finding and prevent a failed review component from silently being promoted. That is narrower than proving an agent catches unresolved code-review warnings. The comparison is instructive beside SQLFluff's accepted warning that escaped merge, ParallelPilot's visible status without tested correctness and Belz's self-consistent tests. Do not call its three artificial cases a 2026 production feature outcome.