cache design

Keeping TanStack Query v5 Cache Consistency Intact — Invalidation Boundaries, Optimistic Updates, and SSR Traps, Worked Through with Antigravity

A like that snaps back a moment after you tap it; a stale value that lingers when you return from another tab. This walks through the three places TanStack Query v5 cache consistency breaks, with working code for invalidation boundaries, onMutate rollback, and per-request QueryClient isolation.