Use as a REVIEW LENS when judging whether another agent's tests actually prove the acceptance criteria — an AC with no test, tests that assert nothing or only on mocks, mirror the implementation, mock the thing under test, never reach the concurrency or failure path the AC names, depend on order or time, or were…
Use when a ticket, plan, or delivery involves a decision with lasting consequences — a library choice, a data model, a boundary between services, a protocol, a deliberate trade-off — and it must be recorded as an Architecture Decision Record others can find and challenge. Invoke for "write an ADR", "document why we…
Use as a REVIEW LENS when judging another agent's diff for concurrency and data-integrity defects under failure — concurrent writers, unsynchronised read-modify-write and lost updates, temp-file name collisions, non-atomic file writes, cross-process locking and stale-lock leases, crash/pause/retry schedules…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: