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Alem Tuzlak
355681cd3a
`@ag-ui/langgraph`'s message converter handles only user/assistant/system/tool
roles and throws `"message role is not supported."` on anything else. Agents
that stream reasoning summaries (OpenAI Responses API + `reasoning={summary:
"detailed"}`) emit AG-UI messages with `role: "reasoning"` that the AG-UI
client replays in the next turn's `input.messages`; the converter then crashes
before the model is ever called and the second pill click in a multi-turn
thread produces an `INCOMPLETE_STREAM` error.
Strip `role: "reasoning"` from `input.messages` inside CopilotKit's
LangGraphAgent.run subclass before delegating to super. This is the narrowest
fix at the runtime/AG-UI boundary — only the inbound message list is filtered,
the outbound event stream still carries reasoning summaries to the client, so
the `<ReasoningBlock>` slot continues to render on the active turn.
CopilotKit - Runtime
✨ Why CopilotKit?
- Minutes to integrate - Get started quickly with our CLI
- Framework agnostic - Works with React, Next.js, AGUI and more
- Production-ready UI - Use customizable components or build with headless UI
- Built-in security - Prompt injection protection
- Open source - Full transparency and community-driven
🧑💻 Real life use cases
Deploy deeply-integrated AI assistants & agents that work alongside your users inside your applications.
🏆 Featured Examples
Documentation
To get started with CopilotKit, please check out the documentation.
Analytics & Privacy
CopilotKit uses Scarf for anonymous usage analytics to help improve the product. Scarf handles all privacy compliance and does not store raw IP addresses. This helps us understand how CopilotKit is being used and prioritize improvements.
Opting Out
To disable analytics, set the environment variable:
export COPILOTKIT_TELEMETRY_DISABLED=true
Or use the DO_NOT_TRACK standard:
export DO_NOT_TRACK=1