W4M.ai - AI Lessons to help you stand out!

Agents 101 + LangGraph

Class 3

Agents 101

LangGraph Basics

Tools, planning, memory, termination, HITL checkpoints.

What Is an Agent?

LangGraph Concepts

Core

  • Nodes, edges, state
  • Tool nodes, model nodes
  • Conditional edges & guards

Interoperability

  • Use with CrewAI/AutoGen roles
  • Validate state with Pydantic

In-Class Build

  1. JD parser → extract skills
  2. Resume bullets generator (STAR)
  3. HITL gate before overwrite

Assignment

Tools

Frameworks

  • LangGraph, CrewAI, AutoGen
  • Pydantic for typed state

LLMs

  • Claude / Gemini Pro 2.5
  • OpenRouter routing