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cron-scheduling

cron-scheduling is a skill for Claude Code, Codex from SawyerHood/middleman. It costs 17 tokens per session (338 once invoked), scanned A, original, Apache-2.0.

A scheduler for creating, viewing, and removing recurring or one-time tasks using cron expressions, a compact schedule format.

In plain words
What is it for?
Adding reminders or automated tasks, listing existing schedules, cancelling them, and setting the time zone and message.
Why use it?
It avoids manually remembering or starting tasks at set times, while keeping the schedule and time zone explicit.

Skill for Claude CodeCodex

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

not rated 185repo +1 5mo ago A scan 17 tokens original Apache-2.0

Good fit Adding reminders or automated tasks, listing existing schedules, cancelling them, and setting the time zone and message.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sawyerhood/middleman/cron-scheduling
View source ↗ SawyerHood/middleman middleman.tools
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 SawyerHood/middleman --skill cron-scheduling
Clone the repo
git clone --depth 1 https://github.com/SawyerHood/middleman

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-scheduling

README.md
[![agentmods](https://agentmods.dev/badge/skills/sawyerhood/middleman/cron-scheduling/github.svg)](https://agentmods.dev/skills/sawyerhood/middleman/cron-scheduling)
Your own site
<a href="https://agentmods.dev/skills/sawyerhood/middleman/cron-scheduling"><img src="https://agentmods.dev/badge/skills/sawyerhood/middleman/cron-scheduling/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cron-scheduling

Your own site · 80×15
<a href="https://agentmods.dev/skills/sawyerhood/middleman/cron-scheduling"><img src="https://agentmods.dev/badge/skills/sawyerhood/middleman/cron-scheduling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 338 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.
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 $0.00017 $0.00338
Opus 5.5 $0.00007 $0.00135
Sonnet 5.5 $0.00003 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 2mo ago against content hash cf122e3dc91f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cron-scheduling 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 2mo 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.

apps/backend/src/swarm/skills/builtins/cron-scheduling/SKILL.md · 66 lines

What it actually says

Cron Scheduling

Use this skill when the user asks to schedule, reschedule, or cancel reminders/tasks for later.

Before creating a schedule, confirm:

  • exact schedule timing (cron expression),
  • timezone (IANA, for example America/Los_Angeles),
  • task message content.

If the request is ambiguous, ask a follow-up question before adding a schedule.

Commands

Use the embedded CLI. It talks to the backend schedule service and stores schedules in SQLite.

middleman schedule add \
  --cron "0 9 * * 1-5" \
  --message "Remind me about the daily standup" \
  --description "Daily standup reminder" \
  --timezone "America/Los_Angeles"

One-shot schedule (fires once at the next matching cron time):

middleman schedule add \
  --cron "30 14 * * *" \
  --message "Check deployment status" \
  --description "One-time deployment check" \
  --timezone "America/Los_Angeles" \
  --one-shot

Remove a schedule:

middleman schedule remove \
  "<schedule-id>"

List schedules:

middleman schedule list

Override manager context manually when needed:

middleman schedule list --manager "manager"

Output

All commands return JSON:

  • Success: { "ok": true, ... }
  • Failure: { "ok": false, "error": "..." }
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. 2mo ago First seen · 66 lines · 17 tokens per session scan A cf122e3dc91f

Subscribe to this mod's changes

cron-scheduling is a skill published in the GitHub repository SawyerHood/middleman (185 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 17 tokens to every session and 338 once invoked, about $0.0001 per session on Opus 5.5. 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.

Claude CodeDevOps and cloudagentsai-agents
Related

cron-scheduling compared with skills from other repositories

cron-scheduling next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
cron-schedulingSawyerHood/middlemanSkill1855mo agoApache-2.0A17Claude Code, Codex
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deploy-docker-composeomnigent-ai/omnigentSkill11kyesterdayApache-2.0A84Claude Code, Codex
haikuagno-agi/agnoSkill43kyesterdayApache-2.0A0Claude Code, Codex
azure-mgmt-botservice-dotnetmicrosoft/skillsSkill3.2kyesterdayMITA78Claude Code