kvozianov

Skill Freshness — Security skill for Claude Code

Security community

Audit the agent skills on your machine (Claude Code, Codex, Cursor, Gemini, Copilot, OpenCode...): find broken, outdated, duplicated and now-built-in skills, with sources.

How to install Skill Freshness

This entry records only its repository, not the path inside it, so there is no exact command to give. Open kvozianov/skill-freshness and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Skill Freshness does

Audit the agent skills on your machine (Claude Code, Codex, Cursor, Gemini, Copilot, OpenCode...): find broken, outdated, duplicated and now-built-in skills, with sources.

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README

skill-freshness

[![ci](https://github.com/kvozianov/skill-freshness/actions/workflows/ci.yml/badge.svg)](https://github.com/kvozianov/skill-freshness/actions/workflows/ci.yml) [![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE) [![Agent Skills spec](https://img.shields.io/badge/Agent%20Skills%20spec-valid-0f766e)](https://agentskills.io/specification) ![Works with](https://img.shields.io/badge/works%20with-Claude%20Code%20·%20Codex%20·%20Cursor%20·%20Gemini%20·%20Copilot%20·%20OpenCode-555)

**Find the agent skills on your machine that are broken, outdated, duplicated, or already built into your agent.**

You install skills for Claude Code, Codex, Cursor, Gemini, Copilot… and they quietly rot. A CLI disappears, an upstream repo moves on, a model id gets retired, or the agent ships the feature natively (Claude Code added `/loop`, and every "looper" skill became dead weight). `skill-freshness` is a skill that audits all of them at once and tells you, with sources, what to keep, update, replace or delete. It never changes anything until you confirm each item.

/skill-freshness              audit everything
/skill-freshness defuddle     one skill, every copy of it
/skill-freshness --fix        then apply the fixes you approve, one by one

What it checks

Question	How
Where are my skills, and which agent actually loads them?	Scans every known skill folder (Claude Code, Codex, Gemini CLI, Antigravity, Cursor, Copilot, OpenCode, Qwen Code, Kilo Code, Roo Code, Windsurf, the shared `~/.agents/skills` store, plugins, project folders) and sweeps your home folder for the rest. Flags copies no installed agent reads, nested `SKILL.md` files that never load, and duplicates (identical vs diverged).
Does it still work?	Is the CLI it calls on `PATH`? Do its scripts compile? Are its Python modules importable? Do the files it references exist? Optional `--smoke` runs scripts with `--help`.
*Is it outdated?