Schedule
TinyAGI/tinyagi
Create, list, and delete scheduled tasks (recurring or one-time) that send messages to agents.
“Schedule reminders and recurring tasks.”
Install Cron
$ npx skills add THU-SAGE/syll --skill cron -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install THU-SAGE/syll cron --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .claude/skills && cp -r skills-src/syll/skills/cron .claude/skills/cron && rm -rf skills-srcUse ~/.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/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .claude/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/THU-SAGE/syll/tree/main/syll/skills/cronType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add THU-SAGE/syll --skill cron -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install THU-SAGE/syll cron --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .agents/skills && cp -r skills-src/syll/skills/cron .agents/skills/cron && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .agents/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add THU-SAGE/syll --skill cron -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install THU-SAGE/syll cron --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/syll/skills/cron .cursor/skills/cron && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .cursor/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/THU-SAGE/syll.git --path syll/skills/cron--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add THU-SAGE/syll --skill cron -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install THU-SAGE/syll cron --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/syll/skills/cron .gemini/skills/cron && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .gemini/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install THU-SAGE/syll cronInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add THU-SAGE/syll --skill cron -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .github/skills && cp -r skills-src/syll/skills/cron .github/skills/cron && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .github/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add THU-SAGE/syll --skill cron -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install THU-SAGE/syll cron --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/THU-SAGE/syll.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/syll/skills/cron .opencode/skills/cron && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cron" agent skill from https://github.com/THU-SAGE/syll/tree/main/syll/skills/cron into .opencode/skills/cron/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cron", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
cron- GitHub stars
- 303
- Token cost
- ~218 tokens
- SKILL.md length
- 71 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
- Works in 2 steps: Reminder - message is sent directly to… → Task - message is a task description,…
- SKILL.md covers Two Modes, Examples and Time Expressions
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
About this skill
Cron is a skill in THU-SAGE/syll (303 stars). Its SKILL.md is about 218 tokens. Licence: MIT.
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Reminder - message is sent directly to user
- Task - message is a task description, agent executes and sends result
What it can do on your machine
Read from SKILL.md and the folder at commit 3741347. 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.
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 loads about 218 tokens when it runs. Until then it costs about 11 tokens; SKILL.md has 71 words of instructions outside code blocks.
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 THU-SAGE/syll at commit 3741347, republished under its MIT licence (© THU-SAGE). 71 words, ~218 tokens.
Download SKILL.mdSave it as
.claude/skills/cron/SKILL.md (or your agent's skills folder).- name
- cron
- description
- Schedule reminders and recurring tasks.
Cron
Use the cron tool to schedule reminders or recurring tasks.
Two Modes
- Reminder - message is sent directly to user
- 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 THU-SAGE/syll 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" |
© THU-SAGE, 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 syll/skills/cron of THU-SAGE/syll.
Open the folder on GitHubat commit 3741347
Compare with similar skills
Cron 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cron this skillTHU-SAGE/syll | 303 | — | ~218 | Automated safety check: Pass | MIT | |
| ScheduleTinyAGI/tinyagi | 3.6k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Send User MessageTinyAGI/tinyagi | 3.6k | — | ~829 | Automated safety check: Pass | MIT | |
| Cron Opsczl9707/build-your-own-openclaw | 1.9k | — | ~593 | Automated safety check: Pass | MIT | |
| X Bookmarkssharbelxyz/x-bookmarks | 289 | — | ~2k | Automated safety check: Notes | None | |
| Wp Wpcli And OpsAutomattic/agent-skills | 211 | 2 repos | ~988 | Automated safety check: Pass | None |
Similar skills
Send User Message
TinyAGI/tinyagi
Send a proactive message to a paired user via their channel (Discord, Telegram, or WhatsApp).
Cron Ops
czl9707/build-your-own-openclaw
Create, list, and delete scheduled cron jobs. An agent skill from czl9707/build-your-own-openclaw.
X Bookmarks
sharbelxyz/x-bookmarks
Fetch, summarize, and manage X/Twitter bookmarks via bird CLI or X API v2.
Wp Wpcli And Ops
Automattic/agent-skills
A skill your agent uses when working with WP-CLI (wp) for WordPress operations: safe search-replace, db export/import, plugin/theme/user/content management, cron, cache flushing, multisite, and…
Ohdear
ohdearapp/ohdear-cli
Manage Oh Dear website monitoring using the ohdear CLI. An agent skill from ohdearapp/ohdear-cli.
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Related
Categories
Questions about Cron
How do I install Cron in Claude Code?
Run `npx skills add THU-SAGE/syll --skill cron -a claude-code`. Or copy the skill folder (syll/skills/cron in THU-SAGE/syll) into .claude/skills/cron in your project. Claude Code loads it when a task matches its description.
How do I install Cron in Codex?
Run `npx skills add THU-SAGE/syll --skill cron -a codex`. Or copy the skill folder (syll/skills/cron in THU-SAGE/syll) into .agents/skills/cron in your project. Codex loads it when a task matches its description.
Can I use Cron 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 THU-SAGE/syll --skill cron -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, .gemini/skills/cron, .github/skills/cron and .opencode/skills/cron in your project.
What does Cron need to run?
SKILL.md names no scripts, command-line tools or credentials: Cron is instructions for the agent only.
Does Cron 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 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 use?
Cron 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 use?
About 218 tokens (SKILL.md is roughly 872 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?
Skills that share tags, products or a category with Cron: Schedule (TinyAGI/tinyagi, 3.6k stars), Send User Message (TinyAGI/tinyagi, 3.6k stars), Cron Ops (czl9707/build-your-own-openclaw, 1.9k stars) and X Bookmarks (sharbelxyz/x-bookmarks, 289 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cron?
THU-SAGE (a GitHub organization) maintains it in THU-SAGE/syll, which has 303 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on June 9, 2026.
Source: THU-SAGE/syll on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.