[BUG] Claude Code Remote Control doesn't support any slash commands

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?

Any attempt to use a slash command during a remote-control session, either directly in the local CLI or from the remote controller, results in Claude not recognizing the command and responding to it as if it was a prompt.

What Should Happen?

Slash commands ('/') should function normally during remote control sessions and get invoked in the local CLI.

Error Messages/Logs

❯ /plugin                                                                                                                                                                                                                               
       
⏺ /plugin isn't in my available skills list. Could you clarify what you're looking for? For example:                                                                                                                                    
                                                                                                                                                                                                                                      
  - Are you trying to manage Claude Code plugins/MCP servers?                                                                                                                                                                           
  - Install or configure a specific plugin?                                                                                                                                                                                             
  - Something else?  

Steps to Reproduce

1. Start a Claude remote control session (/remote-control) and let it connect
2. Connect to it from another device - Android app, mobile web or desktop web
3. Attempt to use any slash command such as /plugin, /init.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.71

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

IntelliJ IDEA terminal

Additional Information

_No response_