async function loop() {
  console.log("Enter a message or press ENTER to quit...\n\n");

  const messages: ModelMessage[] = [];

  while (true) {
    const input = await prompt.input("😏");

    if (input === "") {
      break; // quit
    }

    messages.push({ role: "user", content: input });

    process.stdout.write("> 🤖 ");

    const result = await agent.stream({
      messages,
      experimental_transform: [smoothStream({ delayInMs: 50, chunking: "word" })],
    });

    for await (const text of result.textStream) {
      process.stdout.write(text);
    }

    messages.push(...(await result.response).messages);

    process.stdout.write("\n\n");
  } // loop
}

? 😏 replace "Sunny" with "Rainy" in hello.txt
> 🤖 
I'll {
  path: 'hello.txt',
  rootPath: '/home/mindplay/workspace/agent-cooper',
  targetPath: '/home/mindplay/workspace/agent-cooper/hello.txt',
  offset: undefined,
  limit: undefined
}
help you replace "Sunny" with "Rainy" in hello.txt. First, let me read the file to see its current contents.

Now { path: 'hello.txt', old_str: 'Sunny', new_str: 'Rainy' }
I can see the file contents. I'll replace "Sunny" with "Rainy":

Done! I've successfully replaced "Sunny" with "Rainy" in hello.txt. The file now contains:

```
One
Rainy
Day
```

@ai-sdk/devtools@0.0.15
@openrouter/ai-sdk-provider@2.2.5
ai@6.0.116