[BUG] UI totally frozen including lost input every few seconds, likely from ide connection

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?

I'm constantly losing keystrokes (frozen/ignored input) in one of my claude code windows, every few seconds.

the lost keystrokes coincide with when ◯ /ide for Cursor disappears for about 1 second. whenever ◯ /ide for Cursor my keystrokes into the claude text input window are lost.

What Should Happen?

shouldn't lose keystrokes into input ever.

Error Messages/Logs

Steps to Reproduce

1. open claude code, also have cursor open so ◯ /ide for Cursor is showing
2. if ◯ /ide for Cursor disappears briefly every 5-10 seconds, then this will likely happen
3. type into input box until ◯ /ide for Cursor disappears, then your typed characters during that time will not be entered into the text box.

Claude Code 1.0.128
Running in WSL2 on Windows 11
Cursor is running in Windows.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.0.126

Claude Code Version

1.0.128 (Claude Code)
1.0.127 also still exhibits this behavior, had to switch to 1.0.126 to stop

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Claude Code 1.0.128
Running in WSL2 on Windows 11
Cursor is running in Windows