What is Open Agent Skill?

Open Agent Skill is an open marketplace for AI agent skills. It helps developers discover, publish, and share reusable skills, tools, plugins, and workflows for AI agents like Claude, GPT, and LangChain.

How do I install a skill?

You can install any skill using the command: npx skills add . Each skill page also shows specific installation instructions.

How are skills ranked?

Skills are ranked by real agent usage data, not just GitHub stars. We track actual API calls from agents, success rates, and response times to surface the most reliable skills.

How do I submit my own skill?

Visit the Submit page and provide your GitHub repository URL. Our AI will review your skill for quality and security, then it will be listed in the marketplace.

Decision filters

Choose skills by scenario, quality, and trust signals.

Use casePlatform fitQuality tierGitHub adoption

4 skills matching "brain"

Best blend of quality, stars, freshness, and agent usage

Khoj

VERIFIEDEXCELLENT · 100

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

$ npx skills add khoj-ai/khoj

34.9K stars72 qualityClaude Code + OpenAI Agents

High-confidence pick with strong adoption and healthy maintenance signals.

pythonsemantic-search

by khoj-aiQuick view

Claude Obsidian

VERIFIEDEXCELLENT · 100

Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.

$ npx skills add AgriciDaniel/claude-obsidian

6.3K stars68 qualityClaude Code

High-confidence pick with strong adoption and healthy maintenance signals.

pythonai-agents

by AgriciDanielQuick view

Obsidian Second Brain

VERIFIEDEXCELLENT · 100

Cross-CLI skill for Obsidian: turn your vault into a living AI-first second brain across Claude Code, Codex, Gemini, and OpenCode. 43 commands - now with /obsidian-architect to document your codebase, key-less web research, Google Calendar, and self-rewriting notes.

$ npx skills add eugeniughelbur/obsidian-second-brain

2.3K stars65 qualityClaude Code + OpenAI Agents

High-confidence pick with strong adoption and healthy maintenance signals.

pythonai-agents

by eugeniughelburQuick view

Obsidian Wiki

VERIFIEDEXCELLENT · 100

Framework for AI agents to build and maintain a digital brain through Obsidian wiki using Karpathy's LLM Wiki pattern

$ npx skills add Ar9av/obsidian-wiki

1.8K stars64 qualityClaude Code

High-confidence pick with strong adoption and healthy maintenance signals.

pythonai-agents

by Ar9avQuick view