cron

cron is a skill for Claude Code, Codex from Peiiii/nextclaw. It costs 8 tokens per session (942 once invoked), scanned A, original, MIT.

A scheduling tool for creating reminders and recurring tasks. It supports one-time schedules, fixed time intervals, and calendar patterns such as weekdays.

In plain words
What is it for?
Use it for reminders, one-off delayed actions, interval-based repeats, or recurring calendar schedules.
Why use it?
It helps run reminders at the intended time without manually tracking them.

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

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/peiiii/nextclaw/cron.svg)](https://agentmods.dev/skills/peiiii/nextclaw/cron)
Your own site
<a href="https://agentmods.dev/skills/peiiii/nextclaw/cron"><img src="https://agentmods.dev/badge/skills/peiiii/nextclaw/cron.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 942 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00008 $0.00942
Opus 5 $0.00004 $0.00471
Sonnet 5 $0.00002 $0.00188
Haiku 4.5 $0.00001 $0.00094

Measured 4d ago against content hash 81e0314577e4, 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 4d 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.

packages/nextclaw-core/src/features/agent/shared/skills/cron/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cron

Use the cron tool to schedule reminders or recurring tasks.

cron is the only built-in automation scheduler. Do not refer users to Heartbeat or HEARTBEAT.md.

Before creating a job, decide whether the user wants a one-time action or a recurring action:

  • Use at for one-time tasks such as "in 5 minutes", "at 6pm today", "tomorrow morning", or "only once".
  • Use every only for true intervals that should repeat forever.
  • Use cron only for repeating calendar schedules such as "every weekday at 9am".

When the user gives a relative time such as "in 1 minute", "5 minutes later", or "1分钟后", do not guess the base time.

  • First check the current local time using an available tool, such as exec with date.
  • If the prompt already includes a current local time hint, you may use that hint instead of calling another tool.
  • Then convert the relative time into an exact ISO datetime with timezone and pass that absolute value to at.

When filling message, write the runtime instruction for the agent, not just the final outbound text fragment.

  • Good: At the scheduled time, send a WeChat message to the current chat saying: "会议还有 5 分钟开始。"
  • Bad: 会议还有 5 分钟开始。

If the user wants an exact message sent through WeChat or another channel, the instruction should explicitly say to send that exact text.

If the user wants the scheduled task to continue an existing conversation or explicitly provides a session id, pass it as sessionId. Omit sessionId when the task should use its own job-owned cron:<jobId> session.

If the user asks for a periodic follow-up, recurring check, or “continue this later” workflow, prefer binding the cron job to the existing sessionId instead of inventing a second automation mechanism.

If the user wants a periodic review of a file, workflow, inbox, or project board, express that directly in message.

  • Good: Read docs/TODO.md, check what changed since the last run, and summarize only actionable updates.
  • Good: Continue the current release investigation, inspect the latest logs, and report only new blockers.
  • Bad: heartbeat

Read the full file on GitHub · 91 lines

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. 4d ago First seen · 91 lines · 8 tokens per session scan A 81e0314577e4

Subscribe to this mod's changes

cron is a skill published in the GitHub repository Peiiii/nextclaw (253 stars, last pushed today), licensed MIT. It adds 8 tokens to every session and 942 once invoked, about $0.0000 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 2026-08-30.

Related

Other skills, from other repositories

ha-skill-creator

Create, edit, improve, or audit Hope Agent skills. Use when the user wants to: (1) create a new skill from scratch, (2) edit or improve an existing skill, (3) review or clean up a SKILL.md file, (4) run evaluations to test skill effectiveness, (5) optimize skill descriptions for better trigger accuracy. Trigger…

shiwenwen/hope-agent · 106 tokens

ha-browser

Hope Agent browser automation — the standard status → tabs → snapshot → act loop, stale-ref recovery rules, and what to do when login / 2FA / captcha / camera-prompt / dialog blocks progress. Load this skill whenever you reach for the browser tool. Trigger on: user asks the agent to open / control / click / scrape /…

shiwenwen/hope-agent · 140 tokens

ha-logs

Self-service diagnostics — query Hope Agent's local SQLite databases (logs / sessions / background jobs) directly via the exec tool to investigate problems, analyze usage, and locate root causes. Trigger on: user reports something broken / failing / slow / stuck / not responding ('X 不工作', 'X 报错', 'X 卡住', '为什么 X 失败'…

shiwenwen/hope-agent · 183 tokens

ha-pet-import

Safely import, select, switch, or enable a compatible desktop pet in Hope Agent. Resolve packages from any origin, including local folders, zip archives, pet.json plus a sprite, PNG/WebP atlases, chat attachments, repository or cloud files, direct HTTPS artifact URLs, and download pages. Use whenever a user asks to…

shiwenwen/hope-agent · 109 tokens

china-translate

中英互译 + 本地化 - 技术翻译、UI本地化、文化适配、避免机翻腔.

dongsheng123132/u-claw · 32 tokens

email-draft

Use when the user asks to draft, polish, translate, or reply to an email. Produces a clean draft with subject line, greeting, body, and sign-off, plus a pre-send self-check.

shiwenwen/hope-agent · 46 tokens