A comprehensive developer tool for transforming natural language descriptions into tested and explained regular expressions.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install regex-wizard
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-wizard 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 Wizard?
Regex Wizard is a powerful utility designed to bridge the gap between human language and complex pattern matching. By utilizing Openclaw Skills, this tool enables developers to describe what they want to match in plain English and receive a syntactically correct regex pattern in return. It supports various flavors including Python, JavaScript, PCRE, and Go, ensuring the generated code fits your specific technical stack.
Beyond simple generation, the skill prioritizes education and safety. Every pattern produced comes with a detailed breakdown of its components, explaining exactly how each token contributes to the final match. This transparency helps developers understand the logic behind the code while avoiding common pitfalls like catastrophic backtracking or greedy matching errors that often plague manual regex creation.
Regex Wizard Use Cases
- Creating complex validation patterns for emails, URLs, or custom data formats from plain English descriptions.
- Deconstructing and explaining legacy regular expressions found in existing codebases to improve maintainability.
- Generating localized testing scripts to verify patterns against multiple match and non-match cases.
- Learning the differences between regex flavors and how flags like case-insensitivity or multiline affect performance.
- Auditing patterns for security risks like ReDoS (Regular Expression Denial of Service) using Openclaw Skills recommendations.
How Regex Wizard Works
- The user provides a natural language description of the desired pattern or submits an existing regex for analysis.
- The skill asks for clarification on specific requirements such as multiline support, global matching, or case-insensitive flags.
- A pattern is generated or parsed, identifying the most appropriate flavor for the user's environment.
- The skill provides a detailed Markdown table that explains each component of the regex in plain English.
- Example match and non-match strings are generated to demonstrate the pattern's behavior in practice.
- A portable Python or Grep command is provided to allow the user to immediately test the pattern against their own data.
Regex Wizard Setup
To get started with this skill, ensure you have a local environment capable of executing one of the supported testing languages. No external API keys are required for the core functionality within Openclaw Skills.
CLI Testing Requirements
- Python 3 (Recommended for portability)
- Grep (with -P support for PCRE)
- Node.js (Optional for JS-specific patterns)
Quick Test Command
You can verify a pattern locally using a quick Python one-liner:
python3 -c "import re; pattern = r'YOUR_PATTERN'; print('Match' if re.search(pattern, 'test_string') else 'No match')"
Regex Wizard Data Schema & Taxonomy
The Regex Wizard skill organizes its output into a structured format that is easy to read and integrate into project documentation. The schema includes:
| Data Point | Content Description |
|---|---|
| Pattern | The final regular expression string. |
| Flavor | The specific syntax used (Python, PCRE, JS, Go). |
| Component Table | A breakdown of tokens and their plain English meanings. |
| Match Sets | A list of strings that should successfully match the pattern. |
| Non-Match Sets | A list of strings that should fail the pattern matching. |
| Warnings | Security and performance alerts (e.g., ReDoS or greedy quantifiers). |
Regex Wizard Advanced Features
- Advanced flavor-specific feature detection to ensure compatibility with Python 3 Unicode or JavaScript-specific flags.
- Security-first warnings for catastrophic backtracking, preventing potential ReDoS vulnerabilities in production.
- Interactive debugging that explains the difference between greedy and lazy matching in the context of your specific pattern.
- Automated generation of edge-case test strings to ensure robust input validation.
- Integration with Openclaw Skills to provide portable CLI snippets for cross-platform pattern verification.
SKILL.md
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