[BUG] /ide command fails to detect VS Code on Windows (non-WSL)

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?

Description
The /ide command does not detect VS Code when running Claude Code from VS Code's integrated terminal on Windows
(native, not WSL).

Environment

• Claude Code: 2.1.34
• VS Code: 1.109.0
• Claude Code VS Code extension: anthropic.claude-code@2.1.34
• OS: Windows 11 (10.0.26100.4652)
• Node.js: v22.18.0
• Shell: bash (VS Code integrated terminal)

What Should Happen?

/ide should detect VS Code and enable IDE integration.

Actual Behavior
/ide does not find VS Code.

Error Messages/Logs

- code --version works (in PATH): Yes
- VSCODE_IPC_HOOK environment variable: not set (empty)
- VS Code extension installed: anthropic.claude-code@2.1.34
- Running from VS Code integrated terminal: Yes

Steps to Reproduce

1. Open VS Code on Windows (not WSL)
2. Open the integrated terminal
3. Run claude
4. Type /ide

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

It worked before the 28th of January (around 10 days ago)

Claude Code Version

2.1.34

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

The emssage the /ide command returns is:
No available IDEs detected. Make sure your IDE has the Claude Code extension or plugin installed and is running.
No changes were applied to the settings, it worked around ten days ago and now it does not anymore