Agent skill

Cron Ops

by czl9707 in czl9707/build-your-own-openclaw

Create, list, and delete scheduled cron jobs. An agent skill from czl9707/build-your-own-openclaw.

MITAuto-check passedProductivity & Automation

Install Cron Ops

skills CLI
$ npx skills add czl9707/build-your-own-openclaw --skill cron-ops -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install czl9707/build-your-own-openclaw cron-ops --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/czl9707/build-your-own-openclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/default_workspace/skills/cron-ops .claude/skills/cron-ops && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
cron-ops
GitHub stars
1.9k
Token cost
~593 tokens
SKILL.md length
237 words
Files
1
Skills in repo
1
Repo updated
First seen
Licence
MIT

At a glance

Create, list, and delete scheduled cron jobs. An agent skill from czl9707/build-your-own-openclaw.

  • Works in 6 steps: Ask what task should run and when → Determine the schedule → Ask which agent should run the task → …
  • Tasks that involve Scheduled and recurring tasks
  • SKILL.md covers What is a Cron?, Schedule Syntax, One-Off Jobs and Operations, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Cron Ops is an agent skill from czl9707/build-your-own-openclaw. Create, list, and delete scheduled cron jobs

Its SKILL.md is about 590 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Scheduled and recurring tasks. It works with Python. The repository describes itself as: A step-by-step guide to build your own AI agent. The licence is MIT.

When your agent uses it

  • Tasks that involve Scheduled and recurring tasks

Example prompts

  • “/cron-ops”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Ask what task should run and when
  2. Determine the schedule
  3. Ask which agent should run the task
  4. Ask for a brief description of what the cron does
  5. If the task should run only once (e.g., "remind me tomorrow"), set one_off: true
  6. Create the directory and CRON.md file

What it can do on your machine

Read from SKILL.md and the folder at commit 37ae5dd. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown and bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Cron Ops loads about 593 tokens when it runs. Until then it costs about 13 tokens; SKILL.md has 237 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~13
When it runs · the whole SKILL.md, loaded when a task matches
~593

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from czl9707/build-your-own-openclaw at commit 37ae5dd, republished under its MIT licence (© czl9707). 237 words, ~593 tokens.

Download SKILL.mdSave it as .claude/skills/cron-ops/SKILL.md (or your agent's skills folder).
name
cron-ops
description
Create, list, and delete scheduled cron jobs

Help users manage scheduled cron jobs in pickle-bot.

What is a Cron?

A cron is a scheduled task that runs at specified intervals. Crons are stored as CRON.md files at {{crons_path}}/<name>/CRON.md.

Schedule Syntax

Standard cron format: minute hour day month weekday

Examples:

  • 0 9 * * * - Every day at 9:00 AM
  • */30 * * * * - Every 30 minutes
  • 0 0 * * 0 - Every Sunday at midnight

One-Off Jobs

Set one_off: true for jobs that should run only once. After execution, the cron is automatically deleted.

Use this for:

  • Reminders at a specific future time
  • Scheduled one-time tasks
  • Delayed notifications

Operations

Create
  1. Ask what task should run and when
  2. Determine the schedule
  3. Ask which agent should run the task
  4. Ask for a brief description of what the cron does
  5. If the task should run only once (e.g., "remind me tomorrow"), set one_off: true
  6. Create the directory and CRON.md file
List

Use bash to list directories:

bash
ls {{crons_path}}
Delete
  1. List available crons
  2. Confirm which one to delete
  3. Use bash to remove:
bash
rm -rf {{crons_path}}/<cron-name>

Cron Prompt Guidelines

Cron jobs run in the background with no direct output to the user. The agent executing the cron has no conversation context.

When the user asks to be notified (e.g., "tell me", "let me know", "remind me"):

  • Include post_message instruction in the prompt

When the user doesn't ask for notification:

  • No post_message needed (e.g., background cleanup, data processing)

Cron Template

markdown
---
name: Cron Name
description: Brief description of what this cron does
agent: pickle
schedule: "0 9 * * *"
one_off: false  # Set to true for one-time jobs (optional, defaults to false)
---

Task description for the agent to execute.

With notification:

markdown
---
name: Daily Summary
description: Sends a daily summary of activity
agent: pickle
schedule: "0 9 * * *"
---

Check my inbox and use post_message to send me a summary.

One-off reminder:

markdown
---
name: Meeting Reminder
description: Reminder for tomorrow's meeting
agent: pickle
schedule: "30 14 21 3 *"
one_off: true
---

Use post_message to remind me about the team meeting in 15 minutes.

© czl9707, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in default_workspace/skills/cron-ops of czl9707/build-your-own-openclaw.

Open the folder on GitHubat commit 37ae5dd

Compare with similar skills

Cron Ops next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Cron Ops compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cron Ops this skillczl9707/build-your-own-openclaw1.9k—~593Automated safety check: PassMIT
Action Items Todoistmgonto/executive-assistant-skills118—~3.8kAutomated safety check: NotesNone
Agenticx Automation CrontaskDemonDamon/AgenticX315—~561Automated safety check: PassApache-2.0
AI Automation WorkflowsNeverSight/learn-skills.dev2161 repos~2.6kAutomated safety check: PassNone
Env Doctorcat-xierluo/legal-skills717—~756Automated safety check: PassMIT
WeChat Article DownloaderMoore-developers/moore-wechat-article-downloader294—~3.4kAutomated safety check: PassMIT

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Works with

Questions about Cron Ops

What does Cron Ops do?

Create, list, and delete scheduled cron jobs. An agent skill from czl9707/build-your-own-openclaw. Cron Ops is an agent skill from czl9707/build-your-own-openclaw.

When should I use Cron Ops?

Cron Ops fits situations like: tasks that involve Scheduled and recurring tasks.

How do I install Cron Ops in Claude Code?

Run `npx skills add czl9707/build-your-own-openclaw --skill cron-ops -a claude-code`. Or copy the skill folder (default_workspace/skills/cron-ops in czl9707/build-your-own-openclaw) into .claude/skills/cron-ops in your project. Claude Code loads it when a task matches its description.

How do I install Cron Ops in Codex?

Run `npx skills add czl9707/build-your-own-openclaw --skill cron-ops -a codex`. Or copy the skill folder (default_workspace/skills/cron-ops in czl9707/build-your-own-openclaw) into .agents/skills/cron-ops in your project. Codex loads it when a task matches its description.

Can I use Cron Ops in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add czl9707/build-your-own-openclaw --skill cron-ops -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cron-ops, .gemini/skills/cron-ops, .github/skills/cron-ops and .opencode/skills/cron-ops in your project.

What does Cron Ops need to run?

SKILL.md names no scripts, command-line tools or credentials: Cron Ops is instructions for the agent only.

Does Cron Ops access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Cron Ops safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Cron Ops use?

Cron Ops is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cron Ops use?

About 593 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Cron Ops?

Skills that share tags, products or a category with Cron Ops: Action Items Todoist (mgonto/executive-assistant-skills, 118 stars), Agenticx Automation Crontask (DemonDamon/AgenticX, 315 stars), AI Automation Workflows (NeverSight/learn-skills.dev, 216 stars) and Env Doctor (cat-xierluo/legal-skills, 717 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cron Ops?

czl9707 (a GitHub user) maintains it in czl9707/build-your-own-openclaw, which has 1,898 GitHub stars. The repository was last updated on July 8, 2026.

Source: czl9707/build-your-own-openclaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.