Plugin Management Issues in Claude Code Marketplace

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 experiencing several plugin management issues (which occur in a sequence to form the bug.. so I though of creating a single issue for all) in Claude Code on Windows 11:

1. Cannot remove/delete previous plugins: When trying to install plugins from a marketplace (after removing the same marketplace once), the marketplace gets added successfully, but there is no way to remove previously installed plugins from the UI.

1. Inconsistent plugin state: When attempting to install a plugin through the CLI UI:

• The CLI shows there is a plugin available to install
• After attempting installation, it indicates the plugin is already installed
• When trying to uninstall, it shows there are no plugins installed

1. Previously installed plugins not visible: Plugins that were previously installed are not visible in the UI, and there appear to have been errors during their installation from the same marketplace.

1. No way to clean installation errors: There is no clear way to clean up or remove these failed plugin installations.

What Should Happen?

The plugin management system should:

1. Provide a clear UI to view all installed plugins - Both successful and failed installations should be visible
2. Allow removal/uninstallation of plugins - There should be a straightforward way to uninstall individual plugins even after the marketplace is removed or remove the plugins with marketplace
3. Show consistent plugin state - The CLI and UI should reflect the actual installation state accurately
4. Provide cleanup mechanism - There should be a way to clear failed installation attempts and their errors
5. Handle marketplace deletion properly - Ideally, removing a marketplace should also offer to clean up/remove its associated plugins (or at least clarify the expected behavior)

Error Messages/Logs

Steps to Reproduce

1. Install Claude Code on Windows 11
2. Install a marketplace with plugins (e.g., via the marketplace installation feature)
3. Attempt to install a plugin from the marketplace through the TUI (After Installing and Removing a marketplace without removing the plugins)
4. Observe that:

• The CLI may show a plugin is available to install
• After installation attempt, it shows as "already installed"
• When trying to uninstall via CLI, it shows "no plugins installed"

1. Try to view installed plugins in the UI - previously installed plugins are not visible
2. Attempt to remove/uninstall a plugin - there is no clear way to do this
3. Try deleting the marketplace - observe that plugins may remain (unclear behavior)

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.14 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Marketplace with a plugin available:
<img width="1512" height="139" alt="Image" src="https://github.com/user-attachments/assets/64e10f5c-0ee2-4253-8d64-340d95610a39" />
<img width="1507" height="139" alt="Image" src="https://github.com/user-attachments/assets/685e52df-c1e5-49c4-a97d-714e5e69ccc0" />

No plugins installed even tho the above image shows otherwise
<img width="1516" height="129" alt="Image" src="https://github.com/user-attachments/assets/3ec85c43-3fb1-48a9-8110-d5cc812a7ef4" />