Darwin Cron Guard

Trigger

Use whenever a scheduled job is created, edited, or diagnosed.

Procedure

1. Terminal timeouts must be <= 120s inside cron runs.
2. Background processes need notify_on_complete=true.
3. Exit code 2 may be a SUCCESS-with-changes convention - check the tool's documented exit semantics before alerting.
4. Verify last_status after the first scheduled run.

Pitfall

A job that exits 0 with empty output may have done nothing.

Verification

After following the procedure: confirm the outcome with real evidence (exit code, file, or API response).

python -c "import sys; print('darwin-species-ok')"