AI that builds AI.

import { AIChatAgent } from "@cloudflare/ai-chat";
import { createWorkersAI } from "workers-ai-provider";
import { streamText, createUIMessageStream,
  createUIMessageStreamResponse, convertToModelMessages
} from "ai";

export class Chat extends AIChatAgent<Env> {
  async onChatMessage(onFinish, options) {
    const workersai = createWorkersAI({
      binding: this.env.AI
    });

    const stream = createUIMessageStream({
      execute: async ({ writer }) => {
        const result = streamText({
          model: workersai("auto", {}),
          messages: await convertToModelMessages(
            this.messages
          ),
          system: "You are a helpful assistant.",
        });
        writer.merge(result.toUIMessageStream());
      ,
    });

    return createUIMessageStreamResponse({ stream });
  }
}