[BUG] GitHub Copilot Chat on VSCode steals Claude Code UI

Environment

• Platform (select one):
• [ X] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.60 (Claude Code)
• Operating System: macOS 15.5 and Windows 11
• Terminal: zsh and PowerShell

Bug Description

Just bear with me a second here, from the user's point of view, sometimes Claude terminal window just goes blank on them, that's the bug.

But in reality, here's what's happening. If they're using windows shortcuts like shift+insert to paste and command+i to other things on Mac, this also opens the GitHub Copilot Chat in VSCode. However, at certain times, copilot fails to render its chat UI in the terminal window and also takes over the entire shell. Pressing escape to dismiss is sometimes work, I also had some lock with control+command+i to move the chat window to side.

Steps to Reproduce

1. Use Claude Code for 4-5 minute and use shortcuts on windows like control insert etc.
2. Accidentally or otherwise trigger copilot chat, on certain occasions, the chat window takes over the terminal.
3. One take away would be if it seems like Claude just went just black, press command+i or escape to dismiss copilot chat.

Expected Behavior

Copilot to let us code with Claude code.

Actual Behavior

Hostile takeover from time to time. From users point of view, random blackouts on terminal with no terminal output or exit. Nothing is being rendered either.

Additional Context

Nothing else. Here's a trivia for you: In Turkish there are no gender pronouns, it's always gender neutral.