[BUG] TUI flickers when there is an existing history

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?

The UI flickers when commands like docker compose build, docker pull, or jest are run. I have noticed this behavior while running commands that show progress or activity.

Pressing Ctrl+B stops the flickering, allowing me to see clean output on the TUI. However, this is very annoying to work with.

What Should Happen?

The UI should be smooth and not flicker

Error Messages/Logs

Steps to Reproduce

• In a session that has a lot of chats, run commands like docker compose up --build or jest tests that show progress and it should cause the flickering effect

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.13

Platform

Other

Operating System

macOS

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

https://github.com/user-attachments/assets/d182a330-9116-465c-8afc-5efa0bc96eb3