skill-evaluator

A plugin manifest for a tool that evaluates Claude Code skills against quality and best-practice criteria. A plugin manifest is a file describing an add-on and its metadata.

In plain words
What is it for?
Use it to catalogue or distribute the skill-evaluator plugin for skill quality reviews.
Why use it?
It identifies the evaluator and its purpose so it can be listed or installed as a coding-agent add-on.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add lhohan/claude-code-plugins
agentmods
npx agentmods add plugins/lhohan/claude-code-plugins/skill-evaluator
Clone the repo
git clone --depth 1 https://github.com/lhohan/claude-code-plugins

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

skill-evaluator scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skill-evaluator/.claude-plugin/plugin.json · 13 lines

What it actually says

{
  "name": "skill-evaluator",
  "description": "Evaluate Claude Code skills against best practices including size, structure, examples, and prompt engineering quality. Provides comprehensive analysis with actionable suggestions.",
  "version": "0.1.0",
  "author": {
    "name": "Hans L'Hoest",
    "email": "[email protected]"
  },
  "license": "MIT",
  "keywords": ["skill", "evaluation", "quality-assurance", "best-practices", "code-review"],
  "repository": "https://github.com/lhohan/claude-code-plugins"
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 13 lines scan A f8046ddf4e15

Subscribe to this mod's changes

skill-evaluator is a plugin published in the GitHub repository lhohan/claude-code-plugins (2 stars, last pushed 9mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.