LangChain

by davila7

LangChain is an AI Engineering skill for Claude Code, published by davila7 in claude-code-templates.

30.2K stars3.4K forkson davila7/claude-code-templatesAdded 2026/08/14Repository updated 2026/08/14

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Install in seconds

Install LangChain

Copy LangChain into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/davila7/claude-code-templates/tree/main/cli-tool/components/skills/ai-research/agents-langchain ~/.claude/skills/agents-langchain

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/davila7/claude-code-templates.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: cli-tool/components/skills/ai-research/agents-langchain/SKILL.md in davila7/claude-code-templates
Installs to: ~/.claude/skills/agents-langchain
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What LangChain does

LangChain is a framework for building LLM-powered applications with agents, chains, and RAG. Use it for chatbots, question-answering systems, autonomous agents, and rapid prototyping across multiple providers.

LangChain is cataloged under AI Engineering on DirSkills. LangChain comes from a repository tagged anthropic, anthropic-claude, claude and claude-code.

Documentation

README

Excerpt

LangChain - Build LLM Applications with Agents & RAG

The most popular framework for building LLM-powered applications.

When to use LangChain

Use LangChain when:

Building agents with tool calling and reasoning (ReAct pattern)
Implementing RAG (retrieval-augmented generation) pipelines
Need to swap LLM providers easily (OpenAI, Anthropic, Google)
Creating chatbots with conversation memory
Rapid prototyping of LLM applications
Production deployments with LangSmith observability

Metrics:

119,000+ GitHub stars
272,000+ repositories use LangChain
500+ integrations (models, vector stores, tools)
3,800+ contributors

This is the opening of the README. Read the full README on GitHub.

Frequently asked about LangChain

What else does davila7 publish alongside LangChain?
LangChain is one of 25 skills that DirSkills catalogs from davila7/claude-code-templates, the repository it ships in. Its siblings there include AI Agents Architect, Agent Evaluation and Agent Management. Each one is a separate skill with its own page in this directory, installs the same way LangChain does, and is maintained by davila7 in that same repository. The rest of the collection is listed on the davila7/claude-code-templates page.
How does LangChain compare to other AI Engineering skills?
LangChain ranks #208 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of LangChain against them. Open each page to compare what they document and how they install.