cron-mastery
Cron Mastery
Rule #1: Heartbeats drift. Cron is precise.
This skill provides the definitive guide for managing time in OpenClaw. It solves the "I missed my reminder" problem by enforcing a strict separation between casual checks (heartbeat) and hard schedules (cron).
The Core Principle
| System | Behavior | Best For | Risk |
|---|---|---|---|
| Heartbeat | "I'll check in when I can" (e.g., every 30-60m) | Email checks, casual news summaries, low-priority polling. | Drift: A "remind me in 10m" task will fail if the heartbeat is 30m. |
| Cron | "I will run at exactly X time" | Reminders ("in 5 mins"), daily reports, system maintenance. | Clutter: Creates one-off jobs that need cleanup. |
1. Setting Reliable Reminders
Never use act:wait or internal loops for long delays (>1 min). Use cron:add with a one-shot at schedule.
Standard Reminder Pattern (JSON)
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