# Cron Validate

> Validate cron expressions.

- Skill: `javimosch/cron-validate` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/cron-validate`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/cron-validate/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: javimosch (https://skillmd.com/u/javimosch)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/javimosch/cron-validate

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# cron-validate Plugin
Validate and describe cron schedule expressions.
## Usage
- `cron validate expr "*/5 * * * *"` → Every 5 minutes
- `cron validate expr "0 9 * * 1-5"` → Weekdays at 9 AM