zustand-state-management

SKILL.md

Last Updated: 2026-01-21 Latest Version: zustand@5.0.10 (released 2026-01-12) Dependencies: React 18-19, TypeScript 5+

✅ Use create ()() (double parentheses) in TypeScript for middleware compatibility ✅ Define separate interfaces for state and actions ✅ Use selector functions to extract specific state slices ✅ Use set with updater functions for derived state: set((state) => ({ count: state.count + 1 })) ✅ Use unique names for persist middleware storage keys

✅ Handle Next.js hydration with hasHydrated flag pattern ✅ Use useShallow hook for selecting multiple values ✅ Keep actions pure (no side effects except state updates)

Build type-safe global state in React with Zustand. Supports TypeScript, persist middleware, devtools, slices pattern, and Next.js SSR with hydration handling. Prevents 6 documented errors. Use when setting up React state, migrating from Redux/Context, or troubleshooting hydration errors, TypeScript inference, infinite render loops, or persist race conditions. Source: jezweb/claude-skills.

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