What Changed: April 25, 2026
One page touched: verification. Three production-scale multi-model review case studies landed in the previous week, plus a quantified partition threshold and two named termination mechanisms.
Per-page deltas
verification.md
- “Multi-model review” expanded with three production case studies: Cursor BugBot (8-pass parallel ensemble + majority vote, 52% → 70% resolution across 2M+ PRs/month), cubic.dev (4 narrow specialists — Planner / Security / Duplication / Editorial — 51% drop in false positives without recall loss), and Cloudflare’s CI reviewer (coordinator plus 7 specialist sub-reviewers, mixing Opus 4.7 and GPT-5.4 across roles, deployed at tens of thousands of MRs). Source pattern catalog: Zylos research, March 2026.
- Mozilla × Anthropic Mythos data point. Mythos found 271 Firefox vulnerabilities (fixed in Firefox 150) against 22 found by Opus 4.6 (fixed in Firefox 148). Mozilla’s “defects are finite” framing reframes systematic multi-model review as enumeration of a finite bug space, not optional rigor.
- New section: “Partition the review.” ~500 LOC threshold where AI review effectiveness flips — production data shows 30-40% cycle-time reduction below, sharp degradation above. Mechanism: effective context utilization fails at 10-40% of nominal window. Cross-zone coupling problem and the cross-cut zone solution made explicit.
- “Bounded review iterations” open question expanded with two named production mechanisms: explicit
complete_reviewtermination tool and round-limit caps (1-2 loops for CI, 3-5 interactive). Calibration question — productive second cycle vs oscillation — remains open.