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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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

Google Workspace CLI Assistant

Integrates Google Workspace services like Gmail, Calendar, Drive, and Sheets directly into your terminal workflow.

Productivity & Workflow

228,567

n8n Pull Request Creator

Automates the creation of GitHub pull requests for the n8n repository while ensuring compliance with internal CI title validation rules.

Developer Tools

170,914

Latest Agent Skills

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GOG Library Manager

Manages and organizes your GOG.com game library using automated web tools and command execution.

Productivity & Workflow

Uv Python Tool Installer

Installs Python command-line tools instantly using Astral's high-performance uv engine.

Developer Tools

Codex Root Cause Fixer

Diagnoses and resolves software errors by tracing root causes and delegating verified fixes to the Codex stack.

Security & Testing

NixOS Module Patterns

Streamlines the creation and management of NixOS and Home-Manager modules using standardized architectural patterns and best practices.

Deployment & DevOps

AI-Ready PRD Generator

Generates detailed, agent-executable Product Requirements Documents (PRDs) by analyzing repository context and clarifying feature goals through interactive questioning.

Productivity & Workflow

Strict TDD Workflow

Enforces a rigorous, state-based Test-Driven Development (TDD) process to ensure AI-generated code is honest, minimal, and fully verified.

Security & Testing