[BUG] Terminal-Setup claims windows-terminal is not Windows Terminal

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 i do terminal setup it claims windows-terminal is not supported while literally right below it says Windows Terminal. Seems like a bug to me

`❯ /terminal-setup
⎿ Terminal setup cannot be run from windows-terminal.

This command configures a convenient Shift+Enter shortcut for multi-line prompts.
Note: You can already use backslash (\) + return to add newlines.

To set up the shortcut (optional):

1. Exit tmux/screen temporarily
2. Run /terminal-setup directly in one of these terminals:

• Windows: Windows Terminal
• IDE: VSCode, Cursor, Windsurf, Zed
• Other: Alacritty

1. Return to tmux/screen - settings will persist

Note: iTerm2, WezTerm, Ghostty, Kitty, and Warp support Shift+Enter natively.`

What Should Happen?

it shouldn't think windows terminal is not windows terminal....

Error Messages/Logs

❯ /terminal-setup
  ⎿  Terminal setup cannot be run from windows-terminal.

     This command configures a convenient Shift+Enter shortcut for multi-line prompts.
     Note: You can already use backslash (\) + return to add newlines.

     To set up the shortcut (optional):
     1. Exit tmux/screen temporarily
     2. Run /terminal-setup directly in one of these terminals:
     • Windows: Windows Terminal
     • IDE: VSCode, Cursor, Windsurf, Zed
     • Other: Alacritty
     3. Return to tmux/screen - settings will persist

     Note: iTerm2, WezTerm, Ghostty, Kitty, and Warp support Shift+Enter natively.

Steps to Reproduce

Try /terminal-setup in Claude Code on Windows Terminal

❯ /terminal-setup
⎿ Terminal setup cannot be run from windows-terminal.

This command configures a convenient Shift+Enter shortcut for multi-line prompts.
Note: You can already use backslash (\) + return to add newlines.

To set up the shortcut (optional):

1. Exit tmux/screen temporarily
2. Run /terminal-setup directly in one of these terminals:

• Windows: Windows Terminal
• IDE: VSCode, Cursor, Windsurf, Zed
• Other: Alacritty

1. Return to tmux/screen - settings will persist

Note: iTerm2, WezTerm, Ghostty, Kitty, and Warp support Shift+Enter natively.

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.71

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_