State Management Skill

When to Activate

• Deciding where to put state in a React/Vue/Svelte app
• Server data is going stale or showing inconsistent values
• Global state causing unnecessary re-renders
• Form state is getting complex
• URL not reflecting application state (back button broken)
• Migrating server data out of Zustand into TanStack Query to eliminate manual cache sync
• Adding optimistic updates to a mutation so the UI responds instantly before the server confirms

State Type Decision Tree