[BUG] claude default copy chars to tmux at v 2.1.209

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?

claude will default copy chars to tmux buffer at v 2.1.209. who do this function? It should decided by user use it or not. And there is no config file to close it .

What Should Happen?

claude should disable this function first

Error Messages/Logs

copied xxx chars to tmux buffer paste with prefix +.

Steps to Reproduce

1 use mouse to choose a char in chat.
2 then "copied xxx chars to tmux buffer paste with prefix +." will appear at the right-down corner of chat

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.209

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_