A comprehensive utility for parsing, validating, and translating cron expressions into human-readable language.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install schedule-interpreter
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install schedule-interpreter using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Cron Expression Parser?
The Cron Expression Parser is an essential tool designed to streamline the management of scheduled tasks. It bridges the gap between technical crontab syntax and human understanding by providing instant validation and clear explanations for any cron string. As part of the Openclaw Skills ecosystem, this tool ensures that developers and system administrators can deploy automation triggers with confidence, avoiding the common pitfalls of syntax errors and incorrect timing logic.
Whether you are dealing with standard five-field expressions or specialized crontab aliases, this skill provides a reliable interface for interpreting schedule patterns. It supports a wide range of characters including steps, ranges, and lists, making it a versatile addition to any workflow involving Openclaw Skills.
Cron Expression Parser Use Cases
- Validating complex cron syntax before committing to server configurations.
- Converting technical strings like 0 9 * * 1-5 into human-readable schedules such as Weekdays at 9 AM.
- Troubleshooting automation triggers within the Openclaw Skills framework to ensure tasks run at intended intervals.
- Learning cron field positions and valid ranges for minute, hour, day, month, and weekday segments.
How Cron Expression Parser Works
- The user inputs a cron expression or a shorthand alias into the Openclaw Skills interface.
- The skill identifies the five distinct fields: minute, hour, day of month, month, and day of week.
- Each field is validated against its respective numeric range (e.g., 0-59 for minutes, 0-23 for hours).
- Special characters such as hyphens for ranges, commas for lists, and slashes for steps are processed and interpreted.
- The skill generates a human-friendly summary of the schedule and confirms its validity or highlights specific errors.
Cron Expression Parser Setup
To add this capability to your environment, use the standard installation command for Openclaw Skills:
claw install skylv-cron-parser
Cron Expression Parser Data Schema & Taxonomy
The skill processes data according to the standard crontab specification, organizing metadata as follows:
| Field | Range | Description |
|---|---|---|
| Minute | 0-59 | The exact minute of the hour |
| Hour | 0-23 | The hour of the day |
| Day of Month | 1-31 | The specific calendar day |
| Month | 1-12 | The month of the year |
| Day of Week | 0-6 | Sunday (0) through Saturday (6) |
It also recognizes several common shorthand patterns including @yearly, @monthly, @weekly, @daily, and @hourly.
Cron Expression Parser Advanced Features
- Full support for crontab aliases to simplify common scheduling frequencies.
- Detailed error messaging for out-of-range values or invalid character usage.
- Step-value processing (e.g., */5) for defining specific execution intervals.
- Seamless integration as a helper utility for larger automation workflows using Openclaw Skills.
SKILL.md
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