[BUG] /terminal-setup not available via ssh

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?

I run claude code on a remote ubuntu server via ssh.
I use Tabby Terminal on Windows to connect, then I sudo to the web app user so I can see in real time how changes work on dev.
I absolutely hate the CTRL + J for new lines, so I was running /terminal-setup to change it back to SHIFT + Enter, however, it tells me it cannot run via ssh.

What Should Happen?

It should work like any other command or provide workaround, manually triggered.

Error Messages/Logs

/terminal-setup
  ⎿  Terminal setup cannot be run from ssh-session.

     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:
        • IDE: VSCode, Cursor, Windsurf
        • Other: Ghostty, WezTerm
     3. Return to tmux/screen - settings will persist


/terminal-setup 
  ⎿  Terminal setup cannot be run from xterm-256color.

     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:
        • IDE: VSCode, Cursor, Windsurf
        • Other: Ghostty, WezTerm
     3. Return to tmux/screen - settings will persist

Steps to Reproduce

login via ssh, run claude and the command.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.0.2

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

_No response_