langchain-skills
LangChain Skills is a comprehensive collection of 21 agent skills designed for building AI agents with LangChain, LangGraph, and Deep Agents frameworks. These skills can be installed into coding agents like Claude Code, Cursor, and Windsurf via the Agent Skills specification. The package provides quickstart templates, framework fundamentals, evaluation engineering workflows, and architectural guidance to accelerate agent development. Developers can install all skills at once or selectively add individual capabilities based on their project needs.
Key Features
Use Cases
- 01Scaffolding new LangChain or LangGraph projects with framework-specific quickstarts
- 02Building stateful agents with checkpointers and cross-thread memory in LangGraph
- 03Implementing RAG pipelines with document loaders, embeddings, and vector stores
- 04Creating evaluation tasks for agent testing using Harbor framework integration
- 05Deploying managed Deep Agents with streaming, MCP tool connections, and React UIs
- 06Adding human approval workflows and interrupts to agent decision-making processes
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langchain-skills — FAQ
What is langchain-skills?+
langchain-skills is a collection of 21 agent skills for building AI agents with LangChain, LangGraph, and Deep Agents. It follows the Agent Skills specification and provides quickstarts, fundamentals, and advanced capabilities for agent development.
How do I install langchain-skills?+
Run 'npx skills add langchain-ai/langchain-skills --skill "*" --yes' for local installation in your current project, or add '--global' to install across all projects. For Claude Code, you can also use '/plugin marketplace add langchain-ai/langchain-skills' followed by '/plugin install langchain-skills@langchain-skills'.
Which AI coding agents support langchain-skills?+
langchain-skills works with any agent supporting the Agent Skills specification, including Claude Code, Cursor, and Windsurf. It can also be installed as a native Claude Code plugin via the marketplace.
Do I need API keys to use langchain-skills?+
Yes, you need to set OPENAI_API_KEY for OpenAI models or ANTHROPIC_API_KEY for Anthropic models as environment variables. The eval-engineering skill additionally requires Harbor framework to be running locally with Docker or in a supported cloud environment.
Is langchain-skills free to use?+
The langchain-skills package itself is open-source and free to use. However, using the skills requires API keys for LLM providers (OpenAI or Anthropic), which have their own pricing.
Can I install individual skills instead of all 21?+
Yes, you can install specific skills using 'npx skills add langchain-ai/langchain-skills --skill <skill-name> --yes', for example '--skill eval-engineering' to install only the evaluation engineering skill.
How do I install langchain-skills?+
Open the source repository on GitHub and follow its README. langchain-skills is a skill — MCP Agents Market links you directly to the official repo.
Is langchain-skills free?+
langchain-skills is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.