What are Agent Skills (Claude Skills)?

Agent Skills, also known as Claude Skills, are folders containing instructions, scripts, and resources that AI agents load dynamically to improve performance on specialized tasks. They package expertise into discoverable capabilities that help AI assistants complete specific tasks more effectively.

How do Agent Skills work?

Skills are model-invoked—AI agents autonomously decide when to use them based on your request and the Skill's description. They use only ~100 tokens for scanning and less than 5,000 tokens when activated, making them efficient and powerful.

Do ChatGPT and Codex support skills?

Yes! As of December 2025, OpenAI adopted the skills format for ChatGPT and Codex CLI. Skills are now an open standard that works across Claude, ChatGPT, Codex, Cursor, and other MCP-enabled AI platforms.

How do I install an Agent Skill?

Skills can be installed in several ways depending on your platform. For Claude: Add to ~/.claude/skills/ for personal use, or .claude/skills/ for project sharing. For ChatGPT: Use the /home/oai/skills folder. For Codex CLI: Add to ~/.codex/skills/.

Where can I use Agent Skills?

Skills are portable—they use the same format everywhere. Build once, use across Claude, ChatGPT, Codex, Cursor, and any MCP-enabled platform. This open standard means skills work consistently across different AI assistants.

What's the difference between Skills and MCP servers?

Skills extend AI agent capabilities through instructions and scripts that agents load when needed for specific tasks. MCP (Model Context Protocol) servers are standalone protocol implementations that connect AI agents to external tools, services, and data sources. Skills teach agents how to do things, while MCP servers connect agents to things—they work best together.

Agent Skills Directory for Claude, ChatGPT & Codex

Top Agent Skills

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GH Issues Auto-Fixer

Automates the end-to-end GitHub issue lifecycle by spawning sub-agents to implement code fixes, open pull requests, and resolve review comments.

Collaboration Tools

330,129

Discord Integration

Manages Discord operations including messaging, reactions, and channel management directly through Claude.

Collaboration Tools

313,459

React Code Fix & Linter

Automates code formatting and linting checks to ensure code quality and CI compliance before committing.

Developer Tools

242,682

GitHub Integration

Manages GitHub pull requests, issues, and CI/CD workflows directly through the command line using the GitHub CLI.

Collaboration Tools

228,576

ordercli Food Delivery Manager

Manages and tracks Foodora delivery orders directly from the terminal with real-time status updates.

E-commerce Solutions

228,571

Coding Agent Orchestrator

Delegates complex development tasks and feature builds to specialized background AI agents like Codex and Claude Code.

Productivity & Workflow

228,567

Latest Agent Skills

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Executing Plans

Automates the systematic implementation of development plans by following task lists, running verifications, and managing code integration.

Productivity & Workflow

Minto Slides Generator

Generates structured, data-driven presentation pages including consumer insight charts, user personas, and brand analysis modules directly from Claude Code.

Marketing Automation

WS Verifier

Reviews and validates implementation output against project documentation, coding standards, and specific task requirements.

Security & Testing

Firefox Extension Development

Provides comprehensive reference guides and best practices for building, debugging, and publishing Firefox WebExtensions.

Learning & Documentation

WS Dev Implementation Agent

Implements fully-specified development tasks across frontend, backend, and fullstack domains by following established project patterns.

Developer Tools

Deep Dive Codebase Analysis

Performs systematic codebase analysis to generate high-fidelity documentation covering architectural patterns, data flows, and design intent.

Learning & Documentation