DEPRECATED — Modern Claude models produce accurate, well-explained regex patterns with edge-case test suites natively, including multi-language usage examples. The uplift delta from this skill approaches zero. Retained for archival reference only.

Regex Builder

Transforms matching requirements (positive and negative examples) into tested regex patterns with component-by-component explanations, capture group documentation, edge case identification, and ready-to-use code in Python and JavaScript.

Reference Files

File	Contents	Load When
`references/character-classes.md`	Character class reference, Unicode categories, POSIX classes	Always
`references/quantifiers.md`	Quantifier behavior, greedy vs lazy vs possessive, backtracking	Pattern needs repetition
`references/common-patterns.md`	Validated patterns for email, URL, phone, IP, date, UUID, etc.	Common validation requested
`references/flavor-differences.md`	Syntax differences between Python, JavaScript, PCRE, POSIX	Multi-language usage needed

regex-builder

Regex Builder

Reference Files