@apilium/regex-builder

Build, explain, and test regular expressions with examples. Provides common patterns, syntax reference, cross-language differences, and performance guidance.

Installation

Copy this skill directory into your Mayros skills folder:

cp -r skills/regex-builder ~/.mayros/skills/regex-builder

Or install via the Mayros CLI:

mayros skill install @apilium/regex-builder

Usage

Once configured, the agent can:

• Build patterns: generate a regex for email, URL, phone, UUID, date, semver, and more
• Explain patterns: break any regex into plain English, token by token
• Test patterns: provide test strings and show which match, which do not, and extracted groups
• Cross-language: adjust syntax for JavaScript, Python, Go, Rust, or Java
• Performance: detect catastrophic backtracking and suggest safe alternatives

Example prompts

"Build a regex to validate email addresses"
"Explain this regex: /^(?:\+?1[-.\s]?)?\(?[0-9]{3}\)?[-.\s]?[0-9]{3}[-.\s]?[0-9]{4}$/"
"Test this URL regex against these strings: https://example.com, ftp://bad, not-a-url"
"Convert this JavaScript regex to Python syntax"
"Is /^(a+)+$/ safe from backtracking?"

Semantic Predicates

| Predicate | Scope | Description | |---|---|---| | regex:pattern_created | agent | Patterns built by the agent | | regex:explanation | agent | Pattern explanations recalled by the agent |

License

MIT