a2ui-renderer

This skill builds on copilotkit/react-core (for CopilotKit provider fundamentals) and copilotkit/runtime (for CopilotRuntime fundamentals). Read those first.

Setup

A2UI has two halves. The runtime declares a2ui middleware; the client enables the a2ui prop on the provider. Once both are set, /info flags A2UI and the client auto-mounts createA2UIMessageRenderer — you do NOT wire renderActivityMessages yourself.

Runtime side (app/routes/api.copilotkit.$.tsx)