cron-visualizer
Visualizes system cron jobs on a 24h timeline to identify overlaps and bottlenecks.
Why use this skill?
Analyze and visualize your crontab schedule with the Cron Visualizer skill. Identify execution overlaps and prevent system performance bottlenecks easily.
Install via CLI (Recommended)
clawhub install openclaw/skills/skills/autogame-17/cron-visualizerWhat This Skill Does
The Cron Visualizer is a diagnostic tool designed for system administrators and developers who need a bird's-eye view of their server's automated task execution. By parsing standard crontab configurations, this skill renders a graphical 24-hour timeline directly in your terminal. It highlights potential points of contention where multiple resource-intensive scripts might be triggered simultaneously, causing spikes in CPU, memory, or I/O wait times. The tool identifies overlapping schedules, allowing you to optimize job distribution and ensure your system remains stable throughout the day.
Installation
To install this skill, use the ClawHub command line interface. Ensure your OpenClaw environment is initialized before running the command:
clawhub install openclaw/skills/skills/autogame-17/cron-visualizer
Once installed, you can invoke the script directly from your terminal using node skills/cron-visualizer/index.js. No complex configuration files are required, as the skill dynamically targets the system's local cron environment.
Use Cases
This skill is ideal for:
- Debugging performance bottlenecks occurring at specific times (e.g., midnight spikes).
- Onboarding new services to a server to see if their cron requirements conflict with existing background processes.
- Documenting legacy server infrastructure for easier maintenance and handover.
- Auditing backup schedules to ensure they do not collide with heavy traffic periods.
Example Prompts
- "OpenClaw, run the cron-visualizer and tell me if any of my midnight tasks overlap with the database backups."
- "Show me the 24-hour schedule output from the cron-visualizer and export it to a text file for my report."
- "Analyze my current cron jobs using the cron-visualizer and suggest a better timing for my log rotation script to avoid system congestion."
Tips & Limitations
- Tip: Use the redirection operator
> cron_schedule.txtto save the ASCII chart for documentation purposes or to attach to a ticket. - Limitation: The tool reflects the local time of the host machine; ensure your system clock is synchronized to avoid misleading visualizations.
- Limitation: Complex cron expressions involving specific days of the month or complex ranges are parsed based on their hour-frequency, so very granular monthly tasks may look slightly different in a daily view.
Metadata
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Find the right skillPaste this into your clawhub.json to enable this plugin.
{
"plugins": {
"official-autogame-17-cron-visualizer": {
"enabled": true,
"auto_update": true
}
}
}Tags(AI)
Flags: file-read
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Skill by autogame-17