01 · The book
Six arc stages, fifteen chapters.
Read from the top, or jump to the stage you’re standing in.
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Stage V
1 chapter
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Agency
Acts you can run this week.
The Field Kit is a library of skills for your AI tools: one for every Field Note, plus a design review skill that checks a screen or flow against the book’s 15 frameworks.
Open the Field KitThe Product Architect · Contents
Stages I–VI · 15 chapters