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Guides for creating and using agent skills — the SKILL.md files that give Claude, Codex, and Gemini new capabilities.
Agent Skills and SKILL.md: How to Create a Skill for Any AI AgentLearn 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.Read How to Create a Claude Skill (SKILL.md)Learn how to create a Claude skill step by step: write a SKILL.md, add YAML frontmatter, and install it to ~/.claude/skills. Build one free.Read Codex Skills: How to Create an OpenAI Codex SKILL.mdLearn what OpenAI Codex Skills are and how to create a Codex SKILL.md, step by step — folder structure, frontmatter, install, and a free generator.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.Read What Are Agent Skills? A Plain-English Definition of SKILL.mdAgent 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.Read SKILL.md Template: Copy-Paste, Generate and DownloadFree SKILL.md templates with correct YAML frontmatter. Copy-paste or use the inline generator to build and download a ready SKILL.md in seconds.Read SKILL.md Examples You Can Copy and PasteReal SKILL.md examples with full visible source — copy, paste, and use. See the same agent skill for Claude, Codex, and Gemini CLI. Free.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.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.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.Read