OpenCode uses 'busy'/'retry'/'idle' session statuses, not 'running'.
The stale timeout guard checked for type === 'running' which never
matched, leaving all background tasks vulnerable to stale-kill even
when their sessions were actively processing.
Change sessionIsRunning to check type !== 'idle' instead, protecting
busy and retrying sessions from premature termination.
The stale detection was checking lastUpdate timestamps BEFORE
consulting session.status(), causing tasks to be unfairly killed
after 3 minutes even when the session was actively running
(e.g., during long tool executions or extended thinking).
Changes:
- Reorder pollRunningTasks to fetch session.status() before stale check
- Skip stale-kill entirely when session status is 'running'
- Port no-lastUpdate handling from task-poller.ts into manager.ts
(previously manager silently skipped tasks without lastUpdate)
- Add sessionStatuses parameter to checkAndInterruptStaleTasks
- Add 7 new test cases covering session-status-aware stale detection
Tasks with no progress.lastUpdate were silently skipped in
checkAndInterruptStaleTasks, causing them to hang forever when the model
hangs before its first tool call. Now falls back to checking startedAt
against a configurable messageStalenessTimeoutMs (default: 10 minutes).
Closes#1769
