[BUG] Claude Code crashes when receiving rapid text injection from ydotool

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?

Actual Behavior

Claude Code crashes when receiving rapid keyboard input from ydotool.

What Should Happen?

Expected Behavior

Claude Code should handle rapid text injection gracefully, similar to how Gemini CLI handles it without crashing.

Error Messages/Logs

Steps to Reproduce

Environment

• OS: Fedora Linux (Wayland)
• Kernel: 6.17.12-300.fc43.x86_64
• ydotool flags: -d 1 (1ms delay between keys), -H 1 (1ms hold time)

Use Case

I use a voice-to-text tool that transcribes speech and injects the text into the active window using ydotool. This workflow works with other terminal applications but not with Claude Code.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.0.76 (Claude Code)

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

_No response_