A comprehensive refactoring guide that covers modern TypeScript through 6.0 and React 19, organized into 47 rules across nine categories. Worth using when you're cleaning up type architectures, eliminating unsafe casts, or migrating to newer features like the `using` keyword, const type parameters, and inferred type predicates. The prioritization is helpful: it puts discriminated unions and type narrowing at the top, compiler performance in the middle, and quirks lower down. Particularly strong on React component typing, including the shift away from `React.FC` and the new ref-as-prop pattern in React 19. The rule prefixes and quick reference make it easy to scan when you just need a specific pattern.
npx skills add https://github.com/pproenca/dot-skills --skill typescript-refactor