[BUG] /terminal-setup fails on Windows Terminal despite listing it as supported

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?

Running /terminal-setup inside Claude Code on Windows Terminal gives the error:

Terminal setup cannot be run from windows-terminal.

However, the same output then lists Windows Terminal as a supported terminal:

This is contradictory — it detects the terminal as "windows-terminal," refuses to run, but then tells me to run it in Windows Terminal.

What Should Happen?

The Shift+Enter shortcut should be configured for Windows Terminal.

Error Messages/Logs

The command fails with "Terminal setup cannot be run from windows-terminal."

Steps to Reproduce

1. Open Windows Terminal on Windows 11
2. Launch Claude Code (claude)
3. Run /terminal-setup at the Claude Code prompt

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.100

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_