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Festipod persists each entity as its own document (via the SDK), placed in its scope. The document is the SDK's unit of sharing/permission, so per-document isolation (private→owner, protected→owner+connections, public→all) is only possible when each entity has its own document. Writing several entities into a store-level document defeats per-scope isolation. Framed as SDK usage; the SDK owns enforcement (app-security/knowledge_trust-model). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>