Tanstack Query Best Practices

This is a comprehensive reference for TanStack Query patterns organized into 38 rules across ten categories, from critical query key management to offline support. It covers the stuff that trips people up: query key factories, optimistic updates with rollback context, when to use placeholderData versus initialData, and proper SSR hydration patterns. Each rule follows a consistent format with bad and good examples. The priority system is helpful, putting query keys and caching at critical because those are where the hardest bugs come from. If you're building a data-heavy React app and tired of cache invalidation gotchas or wondering why your mutations aren't updating the UI correctly, this gives you the patterns to get it right.

Install to Claude Code

npx -y skills add deckardger/tanstack-agent-skills --skill tanstack-query-best-practices --agent claude-code