Scheduler Registration and Trigger Flow

Registration rules

On scheduler start/reload, for each enabled task:

1. when=@manual: no job registration
2. when=cron: register task:<taskId>
3. when=time:...: register task-time:<taskId> minute poller

Re-check before execute

At trigger time, runtime re-reads latest task.md and verifies:

• status is still enabled
• when still matches current trigger mode

One-shot behavior

After successful when=time:... execution:

• status -> paused
• when -> @manual

Serial guard

Only one in-flight run per taskId:

• overlap trigger is skipped
• log: Task skipped (already running)

Mermaid