7 refactoring skills for Claude Code — 66 techniques, 23 code smells from refactoring.guru
Skill Claude CodeCodex
Use when reviewing or designing client or server state — covers Flux/Redux unidirectional data flow, server state with React Query/SWR/TanStack Query, optimistic updates and rollback, finite state machines with XState, session management (cookie vs JWT, session fixation, secure flags), distributed session stores…
Skill Claude CodeCodex
Use when writing, reviewing, or diagnosing tests — covers Test Double taxonomy, test smells, testing strategies (AAA, F.I.R.S.T., Test Pyramid), TDD anti-patterns, and a quick-reference classification table.
Skill Claude CodeCodex
Use when reviewing code for type system quality — covers Discriminated Unions, Phantom Types, Branded/Nominal Types, Generic Constraints, Type Narrowing, Immutable Types, Newtype Pattern, Result/Option Types, Builder Pattern with Types, and Conditional Types with red flags and anti-patterns across TypeScript, Java…
Skill Claude CodeCodex
Deep TypeScript-specific code review guide covering type escape hatches (any/as/!), type narrowing, async/Promise pitfalls, React hook rules, module patterns, and immutability. Load this skill when reviewing TypeScript or TSX code to catch type-system misuse, async bugs, and React antipatterns that generic review…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: