Reading paths

The book has four parts. Each has a natural audience, but none are gated — read what’s useful to you.

Part	For	What you’ll get
Part I: The Foundation	Everyone	The thesis. The shift from human-only to AI-native delivery, why it’s happening now, and the vocabulary the rest of the book uses. Start here regardless of role.
Part II: For Leaders	CEO, CTO, CIO, VP Engineering, Director, Head of Platform	Landscape, business case, reference architecture, governance, team structures, the economics of agent run-cost, transition planning. The frame for deciding what to build, buy, or compose — and how to organize the team that will do it.
Part III: For Practitioners	Staff/Principal engineer, tech lead, senior developer building with agents this week	The runtime machine, the instrumented codebase, PROSE, the load lifecycle, attention economy, multi-agent orchestration, primitives as code. The substrate practitioners design and operate against.
Part IV: Case Studies	Everyone	Four worked examples — APM, this book, the publishing pipeline, the growth engine — showing the methodology in production. Read after Part II or Part III for grounding, or sample any one as a standalone.

The two appendices (Cross-harness reference, Genesis worked example) are reference material — bookmark them, return as needed.