My AI reviewer named the bug 9 of 10 times in a diff and 0 of 10 in raw source. Here is why that is weaker than it sounds.
Limits, before anything else. 21 attempts on one defect are repeated observations, not 21 independent tests. One seeded bug: an inverted authorization check in material I wrote myself. Run on 21 August 2026. One small local model. The alias local-advisor-v1:latest is local.