[BUG] /ide integration not working for JetBrains IDE (Intellij IDEA)

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 you open claude code inside Intellij IDEA and use /ide, it says

Select IDE

Connect to an IDE for integrated development features.

No available IDEs detected. Please install the plugin and restart your IDE:

https://docs.claude.com/s/claude-code-jetbrains
>Enter to confirm · Esc to cancel

However, when you use claude inside PowerShell (same directory, powershell opened via Terminal app) it says:

Select IDE

Connect to an IDE for integrated development features.
No available IDEs detected. Make sure your IDE has the Claude Code extension or plugin installed and is running.
Found 1 other running IDE(s). However, their workspace/project directories do not match the current cwd.
• IntelliJ IDEA: /mnt/h/Projects/Minecraft/Mods/SmoothScroll
Press Ctrl-C again to exit

Also, any ide integration features like MCP not working too for claude code.

What Should Happen?

Claude should detect Intellij IDEA as ide

Error Messages/Logs

Steps to Reproduce

1. Open Intellij IDEA
2. Open terminal
3. Write claude

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Maybe 2.1.20 for npm installation and never for native installation

Claude Code Version

2.1.23

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

Have you actually seen reviews on your product in JetBrains market? Here, take a look: https://plugins.jetbrains.com/plugin/27310-claude-code-beta-/reviews