# AgentSkills.site > A practical reference for agent skills. ## Ecosystems - [Hermes Agent Skills: The Practical Guide](https://agentskills.site/hermes-agent-skills/): What Hermes Agent skills are, where they live, and the eight sources you can install them from. - [The Best Hermes Agent Skills](https://agentskills.site/best-hermes-agent-skills/): Eight Hermes skills worth installing, and exactly what each one is good for. - [How to Install Hermes Agent Skills](https://agentskills.site/how-to-install-hermes-agent-skills/): Install Hermes Agent and start adding skills — every command, verified. - [Hermes Agent Skills on GitHub](https://agentskills.site/hermes-agent-skills-github/): Where to find Hermes skills on GitHub, and how to tell a good repo from a risky one. - [Claude Code Skills: The Practical Guide](https://agentskills.site/claude-code-skills/): What Claude Code skills are, where they live, and the frontmatter fields that only work in Claude Code. - [The Best Claude Code Skills](https://agentskills.site/best-claude-code-skills/): The Claude Code skills worth installing, verified against the actual repos, not another roundup. - [How to Install Claude Code Skills](https://agentskills.site/how-to-install-claude-code-skills/): The three real ways to add a Claude Code skill, and when to use each one. - [Claude Code Skills on GitHub](https://agentskills.site/claude-code-skills-github/): Where to find Claude Code skills on GitHub, and how to vet one before you run it. - [Codex Skills: The Practical Guide](https://agentskills.site/codex-skills/): What Codex skills are, the two skill directories that both still work, and how Codex decides to load one. - [The Best Codex Skills](https://agentskills.site/best-codex-skills/): The Codex skills worth installing, taken from the real catalog rather than another roundup. - [How to Install Codex Skills](https://agentskills.site/how-to-install-codex-skills/): Three ways to add a Codex skill, and which directory each one actually writes to. - [How to Create a Codex Skill](https://agentskills.site/how-to-create-a-codex-skill/): Write a SKILL.md that Codex will actually trigger, then package it so other people can use it. - [Codex Skills vs AGENTS.md](https://agentskills.site/codex-skills-vs-agents-md/): Which one to reach for, and why context cost is the deciding factor. - [Cursor Skills: The Practical Guide](https://agentskills.site/cursor-skills/): All eight directories Cursor loads skills from, and the two frontmatter fields that only exist here. - [Cursor Skills vs Rules](https://agentskills.site/cursor-skills-vs-rules/): Cursor's own migration tool defines which rules should have been skills. Here's what it converts, and what it leaves alone. - [How to Install Cursor Skills](https://agentskills.site/how-to-install-cursor-skills/): Five ways to get a skill into Cursor, and the one that needs no work at all if you already run Claude Code. - [The Best Cursor Skills](https://agentskills.site/best-cursor-skills/): The 19 already installed, the reviewed marketplace, and the test for whether an outside skill will work here. - [OpenClaw Skills: The Practical Guide](https://agentskills.site/openclaw-skills/): The six directories OpenClaw loads from in priority order, and the gating metadata that decides what the agent ever sees. - [How to Install OpenClaw Skills](https://agentskills.site/how-to-install-openclaw-skills/): Every install form and the directory it actually writes to — including two commands that look alike and aren't. - [The Best OpenClaw Skills](https://agentskills.site/best-openclaw-skills/): The 51 skills already in the box, and why ClawHub's download counts can't rank the rest. - [Are OpenClaw Skills Safe?](https://agentskills.site/openclaw-skills-security/): What ClawHub's audits check, what they can't catch, and what the independent research actually found. - [How to Create an OpenClaw Skill](https://agentskills.site/how-to-create-an-openclaw-skill/): Write a skill that hides itself when its dependency is missing, then publish it to ClawHub. ## The standard, across ecosystems - [Agent Skills Not Working: A Diagnostic Reference](https://agentskills.site/agent-skills-not-working/): Why a skill doesn't load, doesn't appear, or doesn't trigger — sorted by mechanism, traced to the issue or document it came from. - [Where to Find Agent Skills](https://agentskills.site/where-to-find-agent-skills/): Seven kinds of source, what each one's provenance is worth, and what their download numbers actually count. - [SKILL.md: The Agent Skill File Format](https://agentskills.site/skill-md/): Every frontmatter field with its real constraints, and where five runtime implementations diverge from the spec. - [Agent Skills Compatibility: Which Agents Support SKILL.md](https://agentskills.site/agent-skills-compatibility/): What support means in each runtime, with explicit evidence levels — and the field that silently breaks a skill. - [Agent Skills vs MCP](https://agentskills.site/agent-skills-vs-mcp/): Two layers, not two options — argued from the manifests and hooks that already ship, rather than from analogy. ## Tools and browsing - [Agent Skills Library](https://agentskills.site/skills/): Search and browse a curated, source-verified set of agent skills. - [Browse Agent Skills by Topic](https://agentskills.site/topics/): Skills grouped into a small set of broad categories. - [Agent Skill Creators](https://agentskills.site/creators/): Every person and organization this site has catalogued a source from. - [Agent Skill Sources](https://agentskills.site/sources/): Every repository, plugin marketplace, and bundled collection catalogued. - [AgentSkills Doctor](https://agentskills.site/doctor/): A deterministic, offline skill-stack recommender — no model call. - [SKILL.md Validator](https://agentskills.site/skill-md/validate/): Check a skill against the specification and five real runtimes, in the browser. - [SKILL.md Validator — Rule Reference](https://agentskills.site/skill-md/rules/): Every rule the validator checks, each with its own page and sources. - [About AgentSkills.site](https://agentskills.site/about/): What this site is, how it's researched, and what it deliberately isn't. - [Skills dataset (JSON)](https://agentskills.site/skills.json): The full skills/topics/creators/sources dataset as structured JSON. ## Full text - [Full text export](https://agentskills.site/llms-full.txt): Every editorial page on this site, inlined as markdown.