[BUG] Can't install a plugin that's already installed on a different project

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?

The list of plugins available to install is filtering out plugins installed on a different project at project level. So it's not possible to install the same plugin on different projects at project level.

What Should Happen?

All the plugins should be available for installation on a project that has no plugins installed. I would even say, if the plugin is installed at the user level (not my case) it should still let you install at the project level.

Error Messages/Logs

Steps to Reproduce

1. Install a plugin on Repo A at project level
2. List plugins for installation in Repo B, the plugin will not be there.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.76

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Other

Additional Information

_No response_