---
title: "Agent Skills · Context Atlas"
description: "Agent Skills (Instructions) for coding agents: 6 sources, including docs, an llms.txt, agent skills and a guide for agents, and the files that show a project uses it."
canonical: "https://contextatlas.dev/topics/agent-skills"
updatedAt: "2026-10-23"
---

# Agent Skills · Context Atlas

> The sources Agent Skills publishes for coding agents. Fetch the llms.txt or Rules source first; fetch Full text sources only to search them, they are often several megabytes. Full catalog and instructions: https://contextatlas.dev/llms.txt

Last updated: 2026-10-23

### Agent Skills
Role: Instructions
Signals: **/SKILL.md, .agents/skills/, .claude/skills/
- [agentskills.io](https://agentskills.io/home): Docs
- [Skill specification](https://agentskills.io/specification): Docs
- [Agent Skills llms.txt](https://agentskills.io/llms.txt): llms.txt
- [skills.sh directory](https://skills.sh): Agent skill
- [anthropics/skills](https://github.com/anthropics/skills): Agent skill
- [Agent Skills in Claude](https://docs.claude.com/en/docs/agents-and-tools/agent-skills/overview): Guide

Related topics:

- [AGENTS.md](https://contextatlas.dev/topics/agents-md): Instructions
- [Model Context Protocol](https://contextatlas.dev/topics/mcp): Tools
- [Agent2Agent (A2A)](https://contextatlas.dev/topics/a2a): Agent protocol
- [llms.txt](https://contextatlas.dev/topics/llms-txt): Docs index
- [Documentation servers](https://contextatlas.dev/topics/doc-servers): Docs index