DATA_AND_CACHE.md

Data and cache (high level)

• 8DNA stores project and user JSON documents — primary app state
• Field Access Policy masks fields per role on read
• Client snapshots (sdk.protocol) cache JSON for fast UI; invalidate after writes
• RAG maintains separate collections and vectors — RAG_PLATFORM_GUIDE.md

Integrators do not need separate cache products for basic CRUD — use SDK snapshot helpers and TanStack Query on the client.