[BUG] Claude /resume hogs CPU Core and becomes unresponsive

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 I launch a claude instance on the TUI it becomes unresponsive after a very short amount of time. Grooving in this screenshot step. it's instantly frozen if launched with --resume flag

It does not matter if launched in a CLI directly or behind tmux. Tried with alacritty and kitty. One CPU Core gets fully loaded and I have to terminate the process to get this unstuck.

What Should Happen?

Usually it just launches and works.

Error Messages/Logs

Steps to Reproduce

Start the Claude Tui and prompt anything / use a command

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.0.107

Claude Code Version

1.0.110 (Claude Code)

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

<img width="1243" height="647" alt="Image" src="https://github.com/user-attachments/assets/0a63692c-866a-42cb-92c9-a078491eaf74" />