cron

cron is a skill for Claude Code, Codex from shibing624/agentica. It costs 52 tokens per session (306 once invoked), scanned A, original, Apache-2.0.

A scheduling tool for agent jobs that can add, list, pause, resume, edit, or run scheduled tasks. A scheduled job starts a fresh agent session with a self-contained prompt.

In plain words
What is it for?
Use it for reminders, recurring tasks, one-time jobs, and testing a scheduled job immediately before waiting for its normal schedule.
Why use it?
It lets work happen at a chosen time or repeatedly without keeping the current conversation open, while making the job's instructions explicit for unattended runs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for reminders, recurring tasks, one-time jobs, and testing a scheduled job immediately before waiting for its normal schedule.

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Install with agentmods
npx agentmods add skills/shibing624/agentica/cron
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add shibing624/agentica --skill cron
Clone the repo
git clone --depth 1 https://github.com/shibing624/agentica

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cron

README.md
[![agentmods](https://agentmods.dev/badge/skills/shibing624/agentica/cron.svg)](https://agentmods.dev/skills/shibing624/agentica/cron)
Your own site
<a href="https://agentmods.dev/skills/shibing624/agentica/cron"><img src="https://agentmods.dev/badge/skills/shibing624/agentica/cron.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 306 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.00306
Opus 5 $0.00026 $0.00153
Sonnet 5 $0.00010 $0.00061
Haiku 4.5 $0.00005 $0.00031

Measured 3d ago against content hash bba5e1a93c7b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

cron scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agentica/skills/bundled/cron/SKILL.md · 30 lines

What it actually says

Scheduled jobs

Use the cronjob tool. Do not edit crontab or ~/.agentica/cron/jobs.json by hand. The tool schema lists the actions; do not invent them.

A job runs in a fresh session with none of this conversation. The prompt must be self-contained: goal, constraints, where things are, what to do when blocked. A prompt that needs a follow-up question will stall unattended.

Jobs only fire on their schedule while the scheduler daemon is on. How the user turns it on depends on the surface:

  • Interactive CLI: they type /cron daemon on. You cannot type slash commands; tell them which one. /cron is also their surface for list / add / pause / run.
  • Gateway and other surfaces: cron.enabled in config.yaml is a deployment-level setting. You cannot toggle it from this conversation; tell the user to ask whoever manages this deployment to enable it.

action='run' executes a job once now so you can show the result before waiting for the schedule.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 30 lines · 52 tokens per session scan A bba5e1a93c7b

Subscribe to this mod's changes

cron is a skill published in the GitHub repository shibing624/agentica (351 stars, last pushed yesterday), licensed Apache-2.0. It adds 52 tokens to every session and 306 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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