[BUG] Error adding Superpowers plugin marketplace on Windows 10

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?

I'm using Git Bash on Windows 10 to run Claude Code. I executed the following command to add the Superpowers plugin marketplace:

/plugin marketplace add obra/superpowers-marketplace

After a while, I received the following error:

Error: Failed to finalize marketplace cache. Please manually delete the directory at C:\Users\jeremy.claude\plugins\marketplaces\superpowers-marketplace if it exists and try again. Technical details: EBUSY: resource busy or locked, rename 'C:\Users\jeremy.claude\plugins\marketplaces\obra-superpowers-marketplace' -> 'C:\Users\jeremy.claude\plugins\marketplaces\superpowers-marketplace'

Checking in Task Manager, I found that the file was being used by a Git process. I tried stopping the process and deleting the file, but executing the command again always results in the same error.

What Should Happen?

Superpowers plugin marketplace should be added successfully.

Error Messages/Logs

Error: Failed to finalize marketplace cache. Please manually delete the directory at C:\Users\jeremy.claude\plugins\marketplaces\superpowers-marketplace if it exists and try again.                                                                                                                                                                                                                                                                                                  Technical details: EBUSY: resource busy or locked, rename 'C:\Users\jeremy.claude\plugins\marketplaces\obra-superpowers-marketplace' -> 'C:\Users\jeremy.claude\plugins\marketplaces\superpowers-marketplace'

Steps to Reproduce

1. open Git bash
2. execute claude
3. exeucte /plugin marketplace add obra/superpowers-marketplace

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.70

Platform

Other

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_