cases10

1. 2026-10-24 Cutting between words preserves a sentence's meaning

   now fails loudly Regression tests require the full selected context and its governing modal to survive cloze construction.

   InvariantsTest EffectivenessRuntime InvariantsMutation Testing

2. 2026-10-16 An OAuth session renews itself before its refresh token lapses

   now fails loudly The harness renews its model-provider refresh token before it lapses (or lengthens the token's TTL), and a probe alerts when the token nears expiry, so the daily expiry boundary no longer emits an ERROR span.

   RuntimeInvariantsSynthetic MonitoringObservability Events

3. 2026-10-11 Every exported error occurrence warrants a separate incident task

   now fails loudly regression tests reject historical exports and consumer tool errors, group repeated failures, and enforce a persisted rolling delivery budget

   RuntimeInvariantsObservability EventsRuntime Invariants

4. 2026-10-11 A queued notification can run with another channel's tools

   now fails loudly a queue regression requires different channel origins to remain queued for their own turns while same-origin follow-ups still fold

   RuntimeInvariantsIntegration TestsRuntime Invariants

5. 2026-10-11 A CI runner carries the same tools as a developer's machine

   now fails loudly make test preflights the suite's declared Python dependencies and fails before the demos when one is missing

   RuntimeInvariantsSmoke TestsDependency Graph

6. 2026-10-10 An Ubuntu host label was safe on a macOS runner

   now fails loudly runner-label-check reads active runner config and pages when a Darwin host runner lacks a matching macOS :host label

   RuntimeInvariantsSynthetic MonitoringRuntime Invariants

7. 2026-10-10 The token file was assumed to update the running service

   now fails loudly switchboard-watch restarts on /metrics 401, retries authentication, pages if the retry fails, and clears blind-alert state after a successful scrape

   RuntimeInvariantsSynthetic MonitoringRuntime Invariants

8. 2026-10-07 A running worker is assumed to be listening to its queue

   now fails loudly a scheduled liveness check alarms within minutes when a queue's oldest pending item has gone unclaimed by its owning worker past a short limit

   RuntimeInvariantsSynthetic MonitoringResource TelemetryRuntime Invariants

9. 2026-09-24 A restart policy that fires on exit restarts a hung worker

   now fails loudly a per-harness run timeout now bounds a persistent worker's lifetime, killing and respawning a wedged process and re-arming the timeout every lifetime

   RuntimeInvariantsRuntime InvariantsResource Telemetry

10. 2026-09-12 Renaming a repo and updating its topology entry is one operation

    now fails loudly The deploy gate refuses when the topology file and the filesystem disagree about which repos exist; a worker with a schedule attached is not a worker — it is skipped by collect and never rendered as down.

    ChangeInvariantsPre-Promotion Invariant GatesStatically Checked Invariants