Google has open-sourced A2UI – a UI language for AI agents It allows agents generate user interfaces instead of only text. → Agents send a JSON description of UI components, and the client app renders them with its own trusted widgets. The benefits: - declarative UI format (JSON, not code) - safe: only approved components can be rendered - framework-agnostic (web, Flutter, etc.) - supports incremental UI updates So agents can "speak UI," while the application keeps control over security and implementation https://github.com/google/A2UI