explaingit

fruafr/skills

Analysis updated 2026-05-18

3Audience · developerComplexity · 1/5LicenseSetup · easy

TLDR

A small collection of reusable instruction sets, called agent skills, that AI coding tools like Claude Code can load to improve at specific tasks.

Mindmap

mindmap
  root((skills))
    What it does
      Packages AI skill folders
      Offline docs for Incus
      Reduces hallucinations
    Tech stack
      Markdown skill files
      Agent Skills format
      Apache 2.0 license
    Use cases
      Add Incus CLI knowledge to AI
      Write custom agent skills
      Load skills into Claude Code
    Audience
      Developers
      AI harness users
      Sysadmins

Code map

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What do people build with it?

USE CASE 1

Copy the incus-doc skill into Claude Code to get verified Incus CLI help

USE CASE 2

Use the template folder as a starting point for writing a new agent skill

USE CASE 3

Reduce AI hallucinations on a specialized topic by grounding answers in reference files

USE CASE 4

Learn the Agent Skills open format by studying a working example

What is it built with?

MarkdownClaude Code

How does it compare?

fruafr/skills000madz000/payload-test-api-route-handler0marildo/imago
Stars333
LanguageTypeScriptPython
Setup difficultyeasyeasyeasy
Complexity1/52/52/5
Audiencedeveloperdevelopergeneral

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

Just copy the skill folder into your AI harness's skills directory, no build step needed.

Use freely for any purpose, including commercial use, as long as you keep the copyright and license notices.

In plain English

This repository holds a small collection of agent skills, which are folders of instructions and reference files that an AI coding tool like Claude Code can load automatically to get better at a specific specialized task. The idea is that instead of relying only on general knowledge, the AI reads the files in a skill folder and follows them when a matching task comes up. Right now the repository contains one skill called incus-doc, which gives offline, verified command-line help and documentation for Incus, a system for managing containers and virtual machines. The goal of this skill is to reduce mistakes and made-up answers by having the AI check its claims against the reference files included in the skill rather than guessing from memory, and it is kept up to date with Incus version 6.0. To use a skill from this repository, you copy the contents of its folder into the correct skills directory that your particular AI harness looks in, such as a project-level or global Claude Code skills folder, or an equivalent folder used by other compatible agent tools. Each skill folder is self contained, meaning it includes everything needed to run, such as a main instructions file plus any supporting reference documents or scripts. The repository also includes a template folder with a starting point for writing new skills, based on an open format for agent skills, extended with sections for things like decision rules, edge cases, and examples. Skills in this repository are released under the Apache 2.0 license by default, with each skill folder specifying its own license file. The author notes these skills are meant for demonstration and learning, and recommends testing them carefully before relying on them for anything important, since AI behavior can vary.

Copy-paste prompts

Prompt 1
Help me copy the incus-doc skill into my Claude Code project skills folder
Prompt 2
Explain how the incus-doc skill reduces hallucinated answers about Incus commands
Prompt 3
Show me how to write a new skill using the template in this repository
Prompt 4
Walk me through the Agent Skills open format used by this template
Prompt 5
Explain the difference between a project-level and global skills folder

Frequently asked questions

What is skills?

A small collection of reusable instruction sets, called agent skills, that AI coding tools like Claude Code can load to improve at specific tasks.

What license does skills use?

Use freely for any purpose, including commercial use, as long as you keep the copyright and license notices.

How hard is skills to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is skills for?

Mainly developer.

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