[BUG]

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

When using Claude Code for a conversation, the AI's response is displayed twice.
<img width="907" height="253" alt="Image" src="https://github.com/user-attachments/assets/2f22e7f8-986b-49c6-8f26-5100d04883ee" />

What Should Happen?

In conversations using Claude Code, it's sufficient if the AI's response is displayed only once.

Error Messages/Logs

Steps to Reproduce

Steps and everything else can be reproduced through conversation.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.0.177

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_