[BUG] /terminal-setup: hint message is not displayed properly

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?

Use backslash ( + Enter for multi-line input.

The backslash character \ is being interpreted as an escape sequence and disappears from the output, making the hint unclear for users.

What Should Happen?

The message should display Use backslash (\) + Enter for multi-line input. with the backslash character visible.

Error Messages/Logs

Steps to Reproduce

1. Use Claude Code in Warp terminal
2. Run /terminal-setup command
3. Observe the hint message about multi-line input

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.7

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Warp

Additional Information

_No response_