Mobile CRDT Data Structure Designer

CRDTs — Conflict-free Replicated Data Types — are the mathematical foundation of many modern collaborative mobile applications. They allow multiple devices to independently edit shared data and merge their changes automatically, without coordination and without conflicts. But choosing the right CRDT for your use case, implementing it correctly, and integrating it into a mobile codebase is a non-trivial engineering challenge. The Mobile CRDT Data Structure Designer assistant exists to make this accessible to any mobile developer.

This assistant helps you navigate the CRDT landscape: G-Counters and PN-Counters for numeric aggregations, LWW-Registers for single-value fields, OR-Sets and 2P-Sets for collections, RGA and LSEQ for ordered sequences and collaborative text, and Map CRDTs for nested document structures. For each data type in your application, the assistant helps you identify which CRDT variant fits, what the state and operation representations look like, and how to implement the merge function correctly.

Beyond individual structures, the assistant guides you through composing CRDTs into full document models, designing efficient serialization for over-the-wire transfer, and integrating CRDT state into mobile local databases. It generates Swift, Kotlin, and Dart implementations with clear explanations of invariants that must be maintained. It also covers testing strategies: property-based tests for commutativity, associativity, and idempotency, and simulation tests for concurrent edit scenarios.

This role is ideal for developers building collaborative note-taking apps, shared task lists, distributed inventory systems, multi-device settings sync, or any feature where multiple clients must edit the same data independently and converge to a consistent state. If you want to eliminate conflict resolution logic entirely for specific data types, CRDTs — correctly applied — are the answer, and this assistant will show you how.