# Cron

> Schedule reminders and recurring tasks. Use when this capability is needed.

- Skill: `tomevault-io/cron-3` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/cron-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/cron-3/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/cron-3

---


# Cron

Use the `cron` tool to schedule reminders or recurring tasks.

## Two Modes

1. **Reminder** - message is sent directly to user
2. **Task** - message is a task description, agent executes and sends result

## Examples

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

Dynamic task (agent executes each time):
```
cron(action="add", message="Check HKUDS/nanobot GitHub stars and report", every_seconds=600)
```

List/remove:
```
cron(action="list")
cron(action="remove", job_id="abc123")
```

## Time Expressions

| User says | Parameters |
|-----------|------------|
| every 20 minutes | every_seconds: 1200 |
| every hour | every_seconds: 3600 |
| every day at 8am | cron_expr: "0 8 * * *" |
| weekdays at 5pm | cron_expr: "0 17 * * 1-5" |

---
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<!-- tomevault:4.0:skill_md:2026-04-11 -->