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Guides & tutorials

Learn Agent Skills

Everything you need to create and use agent skills — the SKILL.md files that give Claude, Codex, and Gemini new capabilities.

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Agent Skills and SKILL.md: How to Create a Skill for Any AI Agent

Learn what Agent Skills and the SKILL.md format are, and how to write one skill that runs on Claude, Codex, and Gemini. Build one free.

2 min readRead guide

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How to Create a Claude Code Skill (SKILL.md)

Learn how to create a Claude Code skill step by step: write a SKILL.md, add YAML frontmatter, and install it to ~/.claude/skills. Build one free.

Platform 4 min read

Codex Skills: How to Create an OpenAI Codex SKILL.md

Create an OpenAI Codex skill in minutes: copy-paste SKILL.md template, the exact install path, and a free generator — no config needed. Updated 2026.

Platform 3 min read

Gemini CLI Skills: How to Create a Gemini Agent Skill (SKILL.md)

Learn how to create a Gemini CLI skill using the SKILL.md open standard. Build a Gemini Agent Skill (also works in Antigravity) and install it fast.

Platform 3 min read

What Are Agent Skills? A Plain-English Definition of SKILL.md

Agent skills are reusable SKILL.md files that give AI agents new capabilities. Learn what they are, how they differ from prompts and MCP, and build one.

Fundamentals 3 min read

SKILL.md Template: Copy-Paste, Generate and Download

Free SKILL.md templates with correct YAML frontmatter. Copy-paste or use the inline generator to build and download a ready SKILL.md in seconds.

Template 4 min read

SKILL.md Examples You Can Copy and Paste

Real SKILL.md examples with full visible source — copy, paste, and use. See the same agent skill for Claude, Codex, and Gemini CLI. Free.

Examples 2 min read

SKILL.md vs CLAUDE.md vs AGENTS.md: what's the difference?

SKILL.md vs CLAUDE.md vs AGENTS.md: on-demand skills vs always-on project instructions. Which one to use, and how they work together.

Fundamentals 4 min read

Are Agent Skills Safe?

Are agent skills safe? Yes, if you read what you install. A calm guide to SKILL.md security: real risks, a checklist, and how to vet skills before use.

Fundamentals 6 min read

Agent Skills vs MCP: what's the difference?

Agent skills vs MCP explained: Skills package expertise the model reads on demand; MCP connects agents to tools. Skill vs MCP, and how to use both.

Fundamentals 5 min read

Best Coding Skills

Install-ready coding skills for Claude, Codex, and Gemini — code review, refactoring, testing, and debugging, packaged as SKILL.md.

Skill collection

Best DevOps Skills

The best DevOps skills for AI agents — CI/CD, infrastructure-as-code, containers, and observability as installable SKILL.md files.

Skill collection

Best Security Skills

Security skills for AI agents — code scanning, dependency and secret auditing, and threat modeling as install-ready SKILL.md packages.

Skill collection

Best Productivity Skills

Productivity skills for Claude, Codex, and Gemini — automate writing, summarizing, and planning with packaged SKILL.md expertise.

Skill collection

Best Design Skills

Design skills for AI agents — UI, UX, and design-system help packaged as installable SKILL.md files for Claude, Codex, and Gemini.

Skill collection

Best Claude Code Skills

The best Claude Code skills — official Anthropic SKILL.md packages (skill-creator, document review, and more), install-ready for Claude Code.

Skill collection

Best Codex Skills

The best Codex skills — official OpenAI SKILL.md packages for the Codex CLI and agents, install-ready.

Skill collection

Best Gemini CLI Skills

The best Gemini CLI skills — official Google Gemini SKILL.md packages, install-ready for the Gemini CLI / Antigravity.

Skill collection