langchain-ai — 15 Open-Source AI Agent Skills

langchain-ai is the organization behind 15 open-source AI agent skills and MCP servers spanning agent-tool, mcp-server, claude-skill, with a combined 260,387+ GitHub stars. On AgentSkillsHub each is quality-scored (avg 63/100) and security-graded — 15 verified safe.

Top skills by langchain-ai

• langchain — The agent engineering platform. (149.2k★ · quality 59/100 · security: safe)
• langgraph — Build resilient agents. (44.6k★ · quality 56/100 · security: safe)
• deepagents — Python & TypeScript agent harness built with LangChain and LangGraph. Equipped with a planning tool, a filesystem backend, and the ability t (29.6k★ · quality 68/100 · security: safe)
• openwiki — OpenWiki is a CLI that writes and maintains agent documentation for your codebase. (17.8k★ · quality 62/100 · security: safe)
• open-swe — An Open-Source Asynchronous Coding Agent (11.2k★ · quality 65/100 · security: safe)
• langchain-mcp-adapters — LangChain 🔌 MCP (3.7k★ · quality 67/100 · security: safe)
• deepagentsjs — Agent harness built with LangChain and LangGraph. Equipped with a planning tool, a filesystem backend, and the ability to spawn subagents - (1.6k★ · quality 70/100 · security: safe)
• mcpdoc — Expose llms-txt to IDEs for development (1.0k★ · quality 65/100 · security: safe)

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