Mobile Offline Sync

Trigger

Use this skill when the user:

• Wants the app to work without internet connectivity
• Asks about offline-first architecture or local-first data
• Needs background sync, conflict resolution, or operation queuing
• Mentions "offline", "sync", "local database", "conflict resolution", "CRDT", or "queue"
• Wants optimistic UI that updates instantly and syncs later
• Builds apps for unreliable network environments (field work, travel, rural areas)

Required Inputs

• Framework: Expo (React Native) or Flutter
• Backend: REST API, GraphQL, Supabase, Firebase, or custom sync server
• Data model: what entities need offline support (e.g., tasks, messages, forms)
• Conflict strategy: last-write-wins, field-level merge, or manual resolution