TanStack Query

Reference for TanStack Query v5 (@tanstack/react-query), the async state manager for server data in React. Prefer the project's existing API client, query-key conventions, and hook layer; apply these rules on top so cache identity, staleness, and invalidation stay predictable.

TanStack Query owns server state: data it did not create, stored elsewhere, potentially stale at any moment. It is not a replacement for client state (form inputs, modal toggles, wizard steps) — keep those in React state.

Branch-specific references, loaded on demand: