Agent skill · LangChain
LangGraph Fundamentals
Officialname: langgraph-fundamentals★ 1.3k (repo)pushed 2026-10-21MITSKILL.md on GitHubchecked 2026-10-24
Install
The skills CLI copies the skill into the folder of each agent you pick (Claude Code, Codex, Cursor, Copilot, Gemini CLI, OpenCode, Windsurf...). Add -g for all projects. Needs Node.js 22.20+. docs
npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals
This repo is a plugin marketplace. Inside Claude Code, add it and install the plugin that holds the skill (langchain-skills), or copy only this skill into ~/.claude/skills. docs
/plugin marketplace add langchain-ai/langchain-skills /plugin install <plugin>@langchain-skills # or only this skill: npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals -a claude-code
Download the skill folder, zip it, then Customize > Skills > + > Create skill > Upload a skill. Code execution must be on (Settings > Capabilities). docs
git clone --depth 1 https://github.com/langchain-ai/langchain-skills.git /tmp/langgraph-fundamentals-src cp -r /tmp/langgraph-fundamentals-src/config/skills/langgraph-fundamentals ./langgraph-fundamentals zip -r langgraph-fundamentals.zip langgraph-fundamentals
Codex reads skills from .agents/skills in the repo or ~/.agents/skills. Type $ in Codex to use one. docs
npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals -a codex
gh skill (GitHub CLI 2.90+, preview) installs it for Copilot in VS Code, the CLI and the cloud agent. Copilot also reads .github/skills and ~/.copilot/skills. docs
gh skill install langchain-ai/langchain-skills langgraph-fundamentals
Cursor reads .cursor/skills, .agents/skills and ~/.cursor/skills (and .claude/skills). It does not install loose skills from a GitHub URL, so copy it in. docs
npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals -a cursor
Installs from the GitHub repo; --path picks this skill out of the repo. Default scope is user (all projects). docs
gemini skills install https://github.com/langchain-ai/langchain-skills.git --path config/skills/langgraph-fundamentals
OpenCode reads .opencode/skills, ~/.config/opencode/skills and the Claude and .agents folders. docs
npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals -a opencode
Windsurf (now Devin Desktop) reads .devin/skills, .windsurf/skills and ~/.codeium/windsurf/skills. docs
npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals -a windsurf
Pairs with the LangChain MCP server: the server gives the agent the tools, the skill teaches it how to use them.
More from langchain-ai/langchain-skills
- Deep Agents: Builds agents with LangChain's Deep Agents harness and its configuration options.
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FAQ
How do I install the langgraph-fundamentals skill?+
Run npx skills add langchain-ai/langchain-skills --skill langgraph-fundamentals and pick your agents, or use the tab for your agent above. In Claude Code the skill ends up in ~/.claude/skills/langgraph-fundamentals/SKILL.md.
Which agents can use LangGraph Fundamentals?+
Any agent that reads the Agent Skills format (SKILL.md): Claude Code, the Claude apps, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf and more.
Who maintains LangGraph Fundamentals?+
LangChain, the company or project behind it, in the langchain-ai/langchain-skills repo on GitHub, last pushed 2026-10-21.
Read a skill's SKILL.md and scripts before you install it: skills aren't verified by any agent vendor. All agent skills · MCP servers