langchain-framework

Guide building LLM-powered agents with LangChain, LangGraph, and Deep Agents.

58|16|Updated May 14, 2026
One-click install
npx skills add https://github.com/NVIDIA-NeMo/nemo-platform --skill langchain-framework-nvidia-nemo
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: langchain-framework
Source: https://github.com/NVIDIA-NeMo/nemo-platform/tree/main/plugins/nemo-experimentalist/framework-skills/langchain-framework
Command: npx skills add https://github.com/NVIDIA-NeMo/nemo-platform --skill langchain-framework-nvidia-nemo

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires langchain, langchain-core, langgraph, langsmith, deepagents, and includes references (resource) components.

What problem does it solve?

This Skill provides a structured framework for building LLM-powered agents, helping developers navigate the complexity of choosing between LangChain, LangGraph, and Deep Agents while ensuring best practices for orchestration and tool-calling.

Core Features & Use Cases

  • Framework Selection: Clear guidance on when to use LCEL, LangGraph, or Deep Agents based on task complexity.
  • Agent Orchestration: Standardized patterns for implementing tool-calling agents, stateful graph workflows, and multi-step orchestration.
  • Use Case: When building a customer support agent, use this Skill to determine if a simple LangChain chain suffices or if a LangGraph state machine is required to handle complex, multi-turn conversations with human-in-the-loop approval.

Quick Start

Use the langchain-framework skill to guide the implementation of a stateful agent using LangGraph for a multi-step workflow.

Frequently Asked Questions about langchain-framework

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

FAQPage Schema
How do I build LLM agents with LangChain for multi-step tool calling?

To build LLM agents with LangChain, use this framework to implement tool-calling patterns and multi-step orchestration logic. It provides structured guidance for defining tools, integrating models, and managing agent loops for complex workflows.

When should I use LangGraph instead of LangChain for agent orchestration?

Use LangGraph for agent orchestration when your workflow requires stateful graph workflows or human-in-the-loop approval. LangChain is sufficient for simpler chains, while LangGraph handles complex, multi-turn conversations with state management.

What is the best way to structure stateful graph workflows for LLM agents?

The best way to structure stateful graph workflows for LLM agents is by using LangGraph. This framework facilitates state machine patterns to manage multi-step orchestration, track conversation state, and handle complex conditional logic.

Does this framework selection guidance help choose between LCEL and Deep Agents?

Yes, this framework provides clear selection guidance to choose between LCEL, LangGraph, and Deep Agents. It helps determine the right approach based on your task complexity, ensuring best practices for orchestration and tool-calling.

How do I manage agent loops and state when building customer support agents?

Manage agent loops and state for customer support agents by utilizing LangGraph state machines. This approach handles multi-turn conversations, maintains state across interactions, and supports human-in-the-loop approval steps.