Cron Builder

    2

    Convert natural language to cron expressions and explain complex schedules with run-time projections.

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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    cron-builder

    Example session with this skill installed

    Create a standard 5-field cron expression for a job that needs to run every weekday at 9 AM and show the next 5 run times starting from May 20, 2024.

    • Read your context and instructions
    • Compiled the cron-builder

    Cron Expression: 0 9 * * 1-5
    Format: 5-field (Standard)
    Plain English: Every weekday (Mon-Fri) at 9:00 AM

    Next 5 Runs (UTC):

    1. 2024-05-20 09:00
    2. 2024-05-21 09:00
    3. 2024-05-22 09:00
    4. 2024-05-23 09:00
    5. 2024-05-24 09:00

    Connects securely to your tools. The creator never sees your data.

    What you get

    Generate cron expressions from natural language descriptionsTranslate legacy cron strings into plain English for documentationCalculate the next 5 execution timestamps for any scheduleVerify syntax for GitHub Actions or AWS EventBridge rules

    About this skill

    What it does

    This skill bridges the gap between natural language and complex schedule synchronization. It allows developers to describe timing requirements in plain English and receive precise cron expressions, or conversely, paste cryptic cron strings to get immediate, human-readable explanations. It handles the nuances of different cron syntax variations without requiring external documentation.

    Why use this skill

    Manually calculating cron schedules is prone to "off-by-one" errors and timezone confusion. Unlike a generic AI prompt, this skill is specifically tuned to recognize cross-platform syntax differences (like Quartz vs. Unix) and provides a structured breakdown including the next five execution times. This ensures your background jobs, GitHub Actions, or Kubernetes CronJobs run exactly when you intend them to.

    Supported Formats & Tools

    • Standard 5-Field: Unix crontab, GitHub Actions, and Kubernetes.
    • Extended 6/7-Field: AWS EventBridge, Spring, Quartz, and node-cron (including seconds and years).
    • Special Characters: Supports complex logic using L (Last), W (Weekday), # (Nth weekday), and ? (blank).
    • Shorthand Aliases: Handles @daily, @weekly, @hourly, and more.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
    1. 1

      Download the ZIP

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    2. 2

      Unzip into your skills folder

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    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

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    Fresh listing

    Recently published to Agensi

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    Trust & safety

    Security scanned

    Verified clean 5 months ago

    • Passed all security checks, Safe to install

    Listed5 months ago

    What's inside

    Frequently Asked Questions