Mastra is now fully AG-UI compatible

CopilotKit announced full AG-UI compatibility for Mastra agents through the enhanced `@ag-ui/mastra` integration, allowing a single agent to support features including generative UI, shared streaming state, human-in-the-loop interruptions, activity cards, frontend tools, memory, subagents, multimodal input, and persistent threads across web, mobile, Slack, Teams, and other Channels SDK platforms. Developers can begin with a CopilotKit CLI project or connect Mastra agents to the Copilot Runtime, then add CopilotKit chat components to their application. The update also improves support for Google’s framework-independent A2UI standard by enabling client-side catalog registration, dedicated sub-agent UI generation, validation-based self-healing output, in-place UI updates, and graceful fallback behavior. CopilotKit provides installation instructions, documentation, GitHub resources, and live demonstrations through its Dojo environments, while related posts highlight AG-UI support for React Native and CrewAI, along with deterministic AI-service testing through aimock.

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