Premium AI prompt library for regex authors. Covers pattern building, lookarounds, named groups, and language-specific dialects grounded in Mastering Regular Expressions by Jeffrey Friedl.
Detects credit card formats with regex. Masterclass edition — cites canonical engineers and surfaces 3 anti-patterns most devs miss.
Detects credit card formats with regex. Budget edition — free tier and open-source only, trade-offs named honestly.
Detects credit card formats with regex. Advanced edition — assumes production experience, pushes frontier patterns, references RFCs and library source.
Detects credit card formats with regex. Fast edition — time-boxed to 30 minutes with the highest-leverage fix first.
Clone any prompt, customize it with variables, and test across ChatGPT, Claude, and Gemini. Free forever on the starter plan.