Cron

Use the cron tool to schedule reminders or recurring tasks that should report back to the originating chat/session when they run.

Do not use cron for periodic background checks that should stay quiet when there is nothing useful to report. For those, update HEARTBEAT.md; the protected heartbeat job runs those checks and only delivers results that pass the notification gate.

Three Modes

1. Reminder - message is sent directly to user
2. Task - message is a task description, agent executes and sends result
3. One-time - runs once at a specific time, then auto-deletes

Examples

Fixed reminder:

cron(action="add", message="Time to take a break!", every_seconds=1200)