A production-grade regex suite to test patterns, explain logic, build from natural language, and perform smart find-and-replace.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install openclaw-regex-engine
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 openclaw-regex-engine 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 OpenClaw Regex Engine?
The OpenClaw Regex Engine is a high-performance regex processing suite designed for modern AI agents and developers. This addition to the Openclaw Skills ecosystem provides a comprehensive set of tools to handle complex pattern matching, from explaining legacy code to generating new expressions using natural language. It leverages the ES2024 engine, ensuring support for the latest features like named groups and unicode sets.
Built for speed and reliability, this skill runs on Cloudflare Workers, offering sub-100ms execution times. Whether you are debugging a complex lookahead or searching for a battle-tested email validation pattern, this skill integrates seamlessly into your AI-assisted workflow, making regular expressions accessible and error-free.
OpenClaw Regex Engine Use Cases
- Testing regex patterns against sample text with detailed capture group reporting.
- Deconstructing complex or legacy regular expressions into plain English explanations.
- Generating production-ready regex patterns from natural language descriptions.
- Accessing a library of over 50 battle-tested patterns for common data types like UUIDs, URLs, and IPs.
- Performing advanced find-and-replace operations using backreferences and named groups.
How OpenClaw Regex Engine Works
- The AI agent detects a regex-related intent such as testing, building, or explaining a pattern.
- The specific tool (e.g., regex_test or regex_explain) is invoked via the Openclaw Skills protocol.
- The pattern is processed in a sandboxed environment on the edge to ensure security and performance.
- The skill returns structured data including match indices, token breakdowns, or generated patterns.
- The results are presented to the user with actionable insights and test cases.
OpenClaw Regex Engine Setup
To integrate this skill into your environment, add the following configuration to your MCP-compatible client like Claude Desktop or Cursor:
{
"openclaw-regex": {
"type": "streamable-http",
"url": "https://regex-engine-mcp.yagami8095.workers.dev/mcp"
}
}
No API key is required for the Free tier of Openclaw Skills.
OpenClaw Regex Engine Data Schema & Taxonomy
The skill organizes data into structured JSON responses based on the tool used. Below is the schema for core operations:
| Feature | Data Structure | Key Metadata |
|---|---|---|
| Pattern Matching | matchCount, matches[] | index, match, groups, namedGroups |
| Explanation | tokenArray[] | type, description, matches_example |
| Builder | pattern, flags | testCases (shouldMatch, shouldNotMatch) |
| Replacement | result, replacementCount | diff (before, after) |
All data is processed statelessly on Cloudflare Workers with zero persistence for maximum privacy within the Openclaw Skills ecosystem.
OpenClaw Regex Engine Advanced Features
- PatternForge: Natural language to regex generation with built-in test case validation.
- RegexLens: Token-by-token breakdown of advanced syntax like nested lookaheads and Unicode categories.
- BattleTest Library: A curated repository of 50+ production-grade patterns for global standards.
- SmartReplace: Support for complex backreferences ($1-$9) and named group substitutions.
- Multi-platform support: Native integration with Claude Desktop, Cursor, and Windsurf through Openclaw Skills.
SKILL.md
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