[BUG] Selecting a skill from autocomplete always resolves to first plugin when multiple plugins share the same skill name

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?

When two installed plugins register a skill with the same short name (e.g., both plugin-a and plugin-b have a jira skill), the autocomplete doesn't correctly show both entries with their plugin prefix (only the description has the plugin info):

/jira (plugin-a) Description A...
/jira (plugin-b) Description B...

However, selecting the second entry (plugin-b) still resolves and executes the first plugin's skill (plugin-a:jira). The only workaround is manually typing the fully qualified name /plugin-b:jira, which has no autocompletion.

What Should Happen?

Selecting a specific entry from the / autocomplete list should invoke that plugin's skill using its fully qualified name (e.g., /plugin-b:jira).

Error Messages/Logs

No error — the wrong skill silently executes.

Steps to Reproduce

1. Install two plugins that each expose a skill with the same name (e.g., jira)
2. Type /jira in the input — both options appear in autocomplete
3. Select the second entry from the list
4. Observe that the first plugin's skill is always executed
5. Manually typing /plugin-b:jira correctly invokes the intended skill, confirming the resolution logic works — the bug is in the autocomplete picker not passing the qualified name

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.37

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

The fully qualified name (/plugin-b:jira) works correctly when typed manually but has no autocompletion support. The autocomplete picker appears to discard the plugin namespace when dispatching the selected skill.

Additionally, before skills and commands were merged, skills were autodiscovered and invoked automatically. The logs would show the full skill path, making it clear which skill was being used. After the merge (skills became slash-invocable like commands), the namespace seems to be discarded during resolution, and there is no longer any indication in the logs that a skill is being used or which one was selected.