Plugins from project enabledPlugins shown under 'User' scope and cannot be uninstalled

[vorou]

Description

Plugins referenced in a project's .claude/settings.json enabledPlugins that were never actually installed (no entry in ~/.claude/plugins/installed_plugins.json) are displayed under the User scope in the /plugin UI instead of Project. They also cannot be uninstalled via /plugin uninstall since they're not in the installed plugins registry.

Steps to Reproduce

1. Have a project .claude/settings.json with enabledPlugins referencing plugins that were never installed:

   {
     "enabledPlugins": {
       "some-plugin@some-marketplace": true
     },
     "extraKnownMarketplaces": {
       "some-marketplace": {
         "source": { "source": "github", "repo": "org/repo" }
       }
     }
   }

2. Open Claude Code in that project
3. Run /plugin and go to the Installed tab

Expected Behavior

• These plugins should appear under Project scope (since they come from project settings)
• There should be a way to manage/remove them from the UI (or at minimum a clear indication they need to be installed)

Actual Behavior

• Plugins appear under User scope
• They show as "failed to load · 1 error"
• Running /plugin uninstall plugin-name or claude plugin uninstall plugin-name fails with Plugin "plugin-name" not found in installed plugins
• The only way to remove them is manually editing .claude/settings.json

Screenshots

Plugins from project enabledPlugins showing under "User" instead of "Project":

  Project
❯ anvil2 Plugin · ServiceTitan · ✔ enabled    <-- this one is actually installed

  User
  code-review Plugin · Anthropic · ✘ failed to load · 1 error     <-- from project settings
  feature-dev Plugin · Anthropic · ✘ failed to load · 1 error     <-- from project settings
  ralph-skills Plugin · ralph-marketplace · ✘ failed to load · 1 error  <-- from project settings
  stdocs Plugin · ST-ToolbeltExtensions · ✘ failed to load · 1 error    <-- from project settings

Environment

• Claude Code v2.1.41
• macOS (Darwin 25.2.0)

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] Plugins show as "(installed)" in marketplace but don't appear in Installed tab #14815
2. Stale plugins from removed marketplaces still appear in /plugins menu #23839
3. Bug: Removing marketplace does not clean up associated plugin entries in installed_plugins.json #17061

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[github-actions]

This issue has been automatically closed as a duplicate of #14815.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.