Crabbox

• PR CI = default broad proof. First: focused local tests + targeted lint/typecheck/format. Checks pass + change builds: open ready PR; CI runs broad suites. Never hold PR for pre-PR suite runs.
• Box only for gaps in CI/local coverage: another OS/device, live providers/channels, long E2E, heavy benchmarks. Acquire only with command ready + immediate grant.
• Queued: stop task-owned request; run locally. Never wait on queue or chain Testbox → AWS → other providers.
• Fix real failures; never rerun/re-push merely for green. Read available CI failure classification before attributing failure to change.

Repository Contract