document-skills plugin loads all skills from repo instead of only declared ones in marketplace.json

[JiangHe12]

Description

When installing the document-skills plugin via /plugin install document-skills@anthropic-agent-skills, all 17 skills from the repository are loaded, instead of only the 4 skills declared in marketplace.json.

Expected Behavior

According to .claude-plugin/marketplace.json, the document-skills plugin declares only 4 skills:

{
  "name": "document-skills",
  "skills": [
    "./skills/xlsx",
    "./skills/docx",
    "./skills/pptx",
    "./skills/pdf"
  ]
}

Only these 4 skills should be available after installation.

Actual Behavior

After installation, 17 skills are loaded under the document-skills namespace, including skills from example-skills and claude-api plugins:

• Expected (4): xlsx, docx, pptx, pdf
• Also loaded (13 extra): algorithmic-art, brand-guidelines, canvas-design, claude-api, doc-coauthoring, frontend-design, internal-comms, mcp-builder, skill-creator, slack-gif-creator, theme-factory, web-artifacts-builder, webapp-testing

Root Cause

The install mechanism clones/caches the entire repository at a commit hash. The cached directory contains all skills from the repo under skills/. The plugin loader appears to load all skill directories found in the source path, without filtering against the skills array declared in marketplace.json.

Cache path example:

~/.claude/plugins/cache/anthropic-agent-skills/document-skills/{commit}/skills/

This directory contains all 17 skill folders, not just the 4 declared for document-skills.

Steps to Reproduce

1. Run /plugin install document-skills@anthropic-agent-skills
2. Run /skills to list available skills
3. Observe 17 skills instead of 4

Suggested Fix

The plugin loader should filter skill directories using the skills array from the matching plugin entry in marketplace.json, rather than loading all directories found in the source path.

[steibert-slx]

Just a heads-up, there's a matching issue on the Claude Code side at anthropics/claude-code#13344 that pins this on the plugin loader.

I was able to work around it by deleting the unrelated skills from my local plugin cache, it's something I'll need to repeat every time the plugin updates.

[JiangHe12]

提醒一下，Claude Code 方面有一个匹配的问题，anthropics/claude-code#13344，这个问题与插件加载器有关。

我通过从本地插件缓存中删除不相关的技能解决了这个问题，每次插件更新时我都需要重复这个操作。

Yes, me too.