Building Agentic Systems

A field guide to designing LLM agents that actually work in production

Chapters

1. Introduction
Who this book is for, what production agents look like, and why most demos never ship.
1. The Anatomy of an Agent
Perception, reasoning, and action — the three subsystems every production agent needs.
1. Protocols
MCP for tools, ACP for agents — how standardized protocols connect the ecosystem.