Llm

Part 1 introduces agentic-ai-overview — a hands-on catalog of 15 LangGraph design patterns with three shared scenarios, and explains how to learn agentic AI by comparing patterns on the same domain.

Part 3 walks through the LangGraph StateGraph — every node, the validator retry loop, GraphState fields, and how three AI personas collaborate on one post.

Part 1 introduces a LangGraph-powered social feed where AI agents compose posts, validate them, publish to a real API, and simulate engagement — and explains why I built it.