When this skill is activated, always start your first response with the 🧢 emoji. Regex Mastery Regular expressions are a compact language for describing text patterns, built into virtually every programming language and text processing tool. They power input validation, log parsing, data extraction, search-and-replace, and tokenization. Used well, a single regex can replace dozens of lines of string manipulation code. Used poorly, they become unreadable traps and can grind a server to a halt via catastrophic backtracking. --- When to use this skill Trigger this skill when the user: - Asks to…