A2UI SDK Implementation Guide (Phased Execution)

This skill provides expert instructions and sequences for AI agents or contributors tasked with implementing A2UI Core SDKs, Framework Adapters, or Agent/Inference SDKs in a new programming language or UI framework.

1. Core State SDK Phases

If you are building a new Core SDK (e.g., in Rust, Swift, Go, or C++), you must follow this sequence of phases:

Phase 1: Context & Schemas Ingestion

Thoroughly review:

• blueprints/modules/a2ui_core.blueprint.md (for state and message structures).
• specification/v1_0/json/common_types.json (dynamic binding schemas).
• specification/v1_0/json/server_to_client.json (message envelopes).
• specification/v1_0/catalogs/basic/catalog.json (target components catalog).