langchain

Build AI agents and RAG pipelines with LangChain's modular framework.

Updated Mar 16, 2026
One-click install
npx skills add https://github.com/arsity/scholar-tools --skill langchain-arsity
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: langchain
Source: https://github.com/arsity/scholar-tools/tree/main/vendor/ai-research-skills/14-agents/langchain
Command: npx skills add https://github.com/arsity/scholar-tools --skill langchain-arsity

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires langchain, langchain-core, langchain-openai, langchain-anthropic, and includes references (resource) components.

What problem does it solve?

LangChain enables building AI-powered applications by providing a modular framework for agents, chains, and retrieval-augmented generation (RAG), helping teams create complex AI workflows with fewer moving parts.

Core Features & Use Cases

  • Build AI agents with tool calling and ReAct reasoning for automated decision-making.
  • Implement Retrieval-Augmented Generation pipelines with memory, vector stores, and multi-provider LLMs.
  • Swap providers and integrate with 500+ integrations for rapid prototyping and production.
  • Use cases cover chatbots, QA systems, autonomous workflows, and research assistance.

Quick Start

Install LangChain, configure a basic agent, and run a simple example to observe tools, memory, and retrieval in action.

Frequently Asked Questions about langchain

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build AI agents with tool calling and memory?

Build AI agents with tool calling and memory using a modular framework that supports ReAct reasoning and automated decision-making. It enforces observability and integrates multi-provider LLMs for scalable production workflows.

What is retrieval-augmented generation and how does it work with vector stores?

Retrieval-augmented generation pipelines combine memory and vector stores with multi-provider LLMs to fetch context for AI workflows. This modular framework reduces moving parts for chatbots and QA systems.

Can I swap LLM providers when building AI applications with LangChain?

Yes, you can swap LLM providers when building applications. The framework supports 500+ integrations for rapid prototyping and production, enabling multi-provider LLM transitions across your AI workflows.

Does LangChain support autonomous workflows and research assistance use cases?

LangChain supports autonomous workflows and research assistance by providing a modular agent and chain framework for scalable production. It targets developers building end-to-end AI assistants with extensive integrations.

What are the limitations of building AI agents with a modular framework?

Building AI agents with this modular framework requires managing complex workflows with fewer moving parts. You must enforce observability and handle multi-provider support carefully to maintain scalable production applications.