# Cron

> Schedule reminders and recurring tasks.

- **Type:** Skill
- **Install:** `agentstack add skill-zebbern-icron-cron`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [zebbern](https://agentstack.voostack.com/s/zebbern)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [zebbern](https://github.com/zebbern)
- **Source:** https://github.com/zebbern/icron/tree/main/icron/skills/cron

## Install

```sh
agentstack add skill-zebbern-icron-cron
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# 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 zebbern/icron 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" |

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [zebbern](https://github.com/zebbern)
- **Source:** [zebbern/icron](https://github.com/zebbern/icron)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-zebbern-icron-cron
- Seller: https://agentstack.voostack.com/s/zebbern
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.