Master Skills

Master Skills

The unified skill library for Claude, Codex, Cursor, Antigravity & every AI agent.

2,658 skills · 15 domains · one machine-readable catalog · zero dependencies

⚡ Install  ·  🗂 Domains  ·  📦 Manifest  ·  ▶️ Usage  ·  ❓ FAQ

npx skills add sinhoneyy/master-skills

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✨ What is Master Skills

One source of truth for agent skills. Instead of juggling scattered, inconsistent collections, you get a single clean catalog — deduplicated, domain-organized, and indexed.

Master Skills is a standardized catalog of 2,658 AI-agent skills, sorted into 15 normalized domains. Every skill is runtime-agnostic — it works with Claude, Codex, Cursor, Antigravity, and anything else that loads SKILL.md skills. Each one has a stable id, version, domain, and slash trigger, all described in one authoritative manifest: skills_index.json.

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⚡ Install — choose your tool

One command installs the skills into the path your host expects:

Tool	Install	First use
Claude Code	npx master-skills --claude	/<skill> … (or the Claude plugin marketplace)
Cursor	npx master-skills --cursor	@<skill> …
Gemini CLI	npx master-skills --gemini	Use <skill> to …
Codex CLI	npx master-skills --codex	Use <skill> to …
Antigravity IDE	npx master-skills --antigravity	@<skill> …
Antigravity CLI (agy)	npx master-skills --agy	/<skill> …
Kiro	npx master-skills --kiro	@<skill> …
OpenCode	npx master-skills --opencode	opencode run @<skill> …
AdaL CLI	npx master-skills --adal	Use <skill> to …
Custom path	npx master-skills --path ./my-skills	depends on your tool

Filter what gets installed:

npx master-skills --claude --category security,backend   # only those domains
npx master-skills --cursor --risk safe,none              # only low-risk skills
npx master-skills --list                                 # show all categories
npx master-skills --path ./skills --dry-run              # preview, write nothing

Default tool paths are best-effort — if your host stores skills elsewhere, use --path.

Or clone and point your agent's loader at skills/ directly. No build step, no dependencies. ✅

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🧩 Install as a plugin (Claude · Codex · Antigravity)

Master Skills ships as one plugin with a manifest for each platform, so the same catalog installs everywhere:

Claude Code

/plugin marketplace add sinhoneyy/master-skills
/plugin install master-skills@master-skills

Codex — point Codex at the repo; it reads .codex-plugin/plugin.json (skills → ./skills/).

Antigravity — add the repo as a plugin source; it reads .agents/plugins/marketplace.json.