[BUG] Claude code does not support non github repositories for plugin marketplaces

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 --version
2.0.27 (Claude Code)
~~~

When I supply a git url to claude code, it prefixes git@github.com before cloning and fails.

~~~
claude --verbose plugin marketplace add git@work.com/proj/marketplace
Adding marketplace...
Cloning via SSH: git@github.com:git@work.com/proj/marketplace.git
Cloning repository: git@github.com:git@work.com/proj/marketplace.git
✘ Failed to add marketplace: Failed to clone marketplace repository: Cloning into '/home/vmandela/.claude/plugins/marketplaces/git@work.com-proj/marketplace'...
fatal: remote error:
git@work.com/proj/marketplace is not a valid repository name
Visit https://support.github.com/ for help
~~~

What Should Happen?

~~~
claude --verbose plugin marketplace add git@work.com/proj/marketplace
Adding marketplace...
Cloning via SSH: git@work.com/proj/marketplace.git
Cloning repository: git@work.com/proj/marketplace.git
~~~

Error Messages/Logs

git@work.com/proj/marketplace is not a valid repository name
Visit https://support.github.com/ for help

Steps to Reproduce

See the issue description

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.27

Platform

AWS Bedrock

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_