A powerful CLI utility for testing, matching, extracting, and explaining regular expressions with a library of 25+ pre-defined patterns.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install regex-toolkit
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 regex-toolkit 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 Regex Toolkit?
Regex Toolkit is a comprehensive utility designed to simplify the complex world of regular expressions for developers. As a standout entry in the Openclaw Skills collection, it provides a zero-dependency Python environment to validate syntax, perform search-and-replace operations with backreferences, and extract data from files or piped input.
Beyond basic matching, the toolkit excels at demystifying cryptic patterns by providing plain-English explanations of regex components. Whether you are debugging a custom capturing group or leveraging the built-in library of common patterns like ISO dates and UUIDs, this skill ensures your text processing is both accurate and efficient.
Regex Toolkit Use Cases
- Debugging complex regular expressions by visualizing capturing groups and match positions.
- Extracting specific data points like emails, IP addresses, or phone numbers from large log files.
- Performing bulk search-and-replace operations across text documents using backreferences.
- Learning and teaching regex through the automated plain-English explanation feature.
- Validating user-provided regex patterns within a CI/CD pipeline or automation script.
How Regex Toolkit Works
- The user provides a regular expression pattern or selects one of the 25+ named built-in patterns.
- Input is ingested via direct text strings, file paths, or standard input (stdin) piping.
- The toolkit processes the pattern using Python's regex engine, applying requested flags like ignore-case or multiline.
- For matching tasks, it calculates start/end positions and identifies all defined capturing groups.
- For the explain task, it recursively parses the pattern to generate a human-readable breakdown of the logic.
- Results are returned to the console or output as a structured JSON object for further automation.
Regex Toolkit Setup
To integrate this into your Openclaw Skills workflow, ensure you have Python 3.x installed. No external dependencies are required.
# Clone your skills repository
# Navigate to the scripts directory
cd scripts/
# Verify the toolkit is ready
python3 regex_toolkit.py patterns --list
Regex Toolkit Data Schema & Taxonomy
The toolkit handles data dynamically based on the command used. When using the --json flag, it returns structured data for programmatic use:
| Data Component | Format | Description |
|---|---|---|
| Match Position | Integer Pair | Start and end indices of the match within the source text. |
| Capturing Groups | Object/List | Key-value pairs for named groups or indexed lists for standard groups. |
| Pattern Library | Dictionary | A collection of 25+ pre-defined strings for common formats like email, ipv4, and uuid. |
| Explanation Tree | String | A multi-line breakdown of regex tokens and their functional meaning. |
Regex Toolkit Advanced Features
- Named Pattern Library: Instant access to industry-standard patterns for semver, credit cards, and social security numbers without manual entry.
- Backreference Support: Advanced search-and-replace logic that allows re-ordering or transforming captured text.
- JSON Output Mode: Enables seamless integration with other Openclaw Skills by outputting machine-readable match data.
- Stream Processing: Full support for stdin piping, allowing it to function as a filter in complex shell pipelines.
- Syntax Validation: Pre-flight checks to catch malformed regex patterns before they cause runtime errors in production code.
SKILL.md
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