Library assistant composer

Design References

• Expression children
• Render tree contract

Contract

AIComposer renders assistant draft input. Draft text comes from the controller. Omitted send or interrupt event names hide the matching interactive control.

Prop	Required	Behavior
draft	no	String draft text; defaults empty.
placeholder	no	Public-safe input hint.
send	no	Runtime event name for submit.
interrupt	no	Runtime event name for stopping active work.
disabled	no	Boolean; defaults false.

Send and interrupt events emit source identity only. No draft text, model id, attachments, provider request, or command payload is included. The controller reads draft state from its model after receiving the event:

emitted := map[string]any{
	"event": "send-message",
	"source": map[string]string{
		"id":   "assistant-composer",
		"path": "/AIPanel[0]/AIComposer[0]",
	},
}

var composer = <AIComposer
  draft={draft}
  send="send-message"
  interrupt="interrupt-run">
</AIComposer>

The composer emits intent and source identity. Prompt validation, provider policy, model availability, attachment policy, and run scheduling stay outside the component.

Consequence

Assistant draft input stays reusable because it does not own provider behavior.

UI framework index

Sources

• AIComposer
• Callback props