Chapter 2.1 - Stateful Agentic Workflows
While standard LangChain chains follow a Directed Acyclic Graph (DAG) flow, real-world autonomous agents require loops, conditional branching, state mutation, and self-correction.
Chapter 2.2 - Human-in-the-Loop & Persistence
For high-stakes applications (e.g. executing financial transactions, modifying production databases, sending emails), autonomous agents must not execute destructive actions without explicit human verification.