Best use case
cron is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Schedule reminders and recurring tasks.
Teams using cron should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/cron/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How cron Compares
| Feature / Agent | cron | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Schedule reminders and recurring tasks.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
Related Guides
Top AI Agents for Productivity
See the top AI agent skills for productivity, workflow automation, operational systems, documentation, and everyday task execution.
AI Agents for Marketing
Discover AI agents for marketing workflows, from SEO and content production to campaign research, outreach, and analytics.
AI Agents for Startups
Explore AI agent skills for startup validation, product research, growth experiments, documentation, and fast execution with small teams.
SKILL.md Source
# Cron Use the `cron` tool to schedule reminders or recurring tasks. ## 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) ``` Dynamic task (agent executes each time): ``` cron(action="add", message="Check HKUDS/nanobot GitHub stars and report", every_seconds=600) ``` One-time scheduled task (compute ISO datetime from current time): ``` cron(action="add", message="Remind me about the meeting", at="<ISO datetime>") ``` Timezone-aware cron: ``` cron(action="add", message="Morning standup", cron_expr="0 9 * * 1-5", tz="America/Vancouver") ``` 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" | | 9am Vancouver time daily | cron_expr: "0 9 * * *", tz: "America/Vancouver" | | at a specific time | at: ISO datetime string (compute from current time) | ## Timezone Use `tz` with `cron_expr` to schedule in a specific IANA timezone. Without `tz`, the server's local timezone is used.
Related Skills
weather
Get current weather and forecasts (no API key required).
tmux
Remote-control tmux sessions for interactive CLIs by sending keystrokes and scraping pane output.
summarize
Summarize or extract text/transcripts from URLs, podcasts, and local files (great fallback for “transcribe this YouTube/video”).
skill-creator
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
memory
Two-layer memory system with grep-based recall.
github
Interact with GitHub using the `gh` CLI. Use `gh issue`, `gh pr`, `gh run`, and `gh api` for issues, PRs, CI runs, and advanced queries.
clawhub
Search and install agent skills from ClawHub, the public skill registry.
acronym-unpacker
Disambiguate medical acronyms and abbreviations with context-aware full form lookup. Resolves ambiguous abbreviations (e.g., 'PID' = Pelvic Inflammatory Disease vs. Prolapsed Intervertebral Disc) based on clinical specialty, document context, and usage patterns.
cron-job-guardian
检查 cron 或 timer 配置中的频率、幂等、重试、日志与并发风险。；use for cron, timer, ops workflows；do not use for 直接启停生产任务, 替代真正监控.
cron-job-scheduler
Cron Job Scheduler - Auto-activating skill for Backend Development. Triggers on: cron job scheduler, cron job scheduler Part of the Backend Development skill category.
cron-mastery
Master OpenClaw's timing systems. Use for scheduling reliable reminders, setting up periodic maintenance (janitor jobs), and understanding when to use Cron vs Heartbeat for time-sensitive tasks.
cron-jobs
Vercel Cron Jobs configuration and best practices. Use when adding, editing, or debugging scheduled tasks in vercel.json.