langchain

Build and orchestrate LLM agents and RAG pipelines across providers.

Updated Apr 12, 2026
One-click install
npx skills add https://github.com/dotlab-hq/torque --skill langchain-dotlab-hq
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: langchain
Source: https://github.com/dotlab-hq/torque/tree/main/.agents/skills/langchain
Command: npx skills add https://github.com/dotlab-hq/torque --skill langchain-dotlab-hq

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

LangChain provides a framework to build and orchestrate LLM-powered agents, chains, memory, and RAG pipelines across providers like OpenAI, Anthropic, and Google. It enables rapid prototyping and production-grade deployments for chatbots, QA systems, and autonomous workflows.

Core Features & Use Cases

  • ReAct-style reasoning and tool calling
  • Memory management and context handling
  • Vector store integration and LangSmith observability
  • Use cases include building chatbots, QA systems, and multi-tool agents
  • Integrates with multiple providers to switch models and tools seamlessly

Quick Start

Create a simple tool-using agent with a local LLM and run a sample task to observe agent reasoning and actions.

Frequently Asked Questions about langchain

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

FAQPage Schema
How do I build LLM-powered agents with tool calling and memory?

You can build LLM-powered agents with tool calling and memory using LangChain to orchestrate ReAct-style reasoning, context handling, and multi-provider model integrations for autonomous workflows.

What is the best way to build a RAG pipeline for a QA system?

The best way to build a RAG pipeline for QA systems is using LangChain, which provides vector store integration and orchestration for rapid prototyping and production deployments.

Can I use LangChain to switch between OpenAI, Anthropic, and Google models?

Yes, LangChain integrates with multiple providers like OpenAI, Anthropic, and Google, allowing you to switch models and tools seamlessly across your LLM applications.

Does LangChain support LangSmith observability for production deployments?

LangChain supports LangSmith observability, enabling you to monitor and trace LLM-powered agents and RAG pipelines during production-grade deployments.

When do I need ReAct-style reasoning for my LLM chatbot?

You need ReAct-style reasoning when building LLM chatbots that require autonomous decision-making, allowing the agent to dynamically call tools and manage memory context.

What are the limitations of building autonomous workflows with local LLMs?

Limitations of building autonomous workflows with local LLMs involve managing context handling and memory, though LangChain helps mitigate this with its robust framework for tool calling.