[BUG] `plugins list --json` produces invalid output

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?

When I run claude plugins list --json (or claude plugin list --json for SEO) the output isn't valid JSON as it contains various non-printable characters.

What Should Happen?

The output of this command should be valid JSON.

Error Messages/Logs

^[7^[[r^[8^[[?25h[^M^M$
^[[2C{^M^M$
^[[4C"id":^[[1C"foobar@my-plugins",^M^M$

Steps to Reproduce

Run claude plugins list --json (or claude plugin list --json).

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.143 (Claude Code)

Platform

Other

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_