cron

A scheduler for reminders and recurring tasks, including tasks where an agent runs instructions at set times. Cron is a time-based scheduling system commonly used on computers and servers.

In plain words
What is it for?
Use it for one-time reminders, repeating messages, scheduled agent checks, and timezone-aware routines.
Why use it?
It removes the need to remember tasks manually or run the same command on a schedule.

Skill for Claude CodeCodex

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.

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

Made for: Claude Code, Codex.

Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 403 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00008 $0.00403
Opus 5 $0.00004 $0.00201
Sonnet 5 $0.00002 $0.00081
Haiku 4.5 $0.00001 $0.00040

Measured 2d ago against content hash c67043f1d33d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 2d 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.

Origin

This is a copy

100% identical to cron — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

clawbot/skills/cron/SKILL.md · 58 lines

What it actually says

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 owner/repo 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.

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. 2d ago First seen · 58 lines · 8 tokens per session scan A c67043f1d33d

Subscribe to this mod's changes

cron is a skill published in the GitHub repository saolalab/clawforce (38 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 8 tokens to every session and 403 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to cron, differing in 2 lines, and is treated as a copy.

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