DEC_000 · handbook v1.3.1 · open source
AI-Native
Product Building
Not how to build AI products — how AI changes the process of building any product. Decision frameworks that outlive the tools. Versioned in public like software.
How this works
Most material teaches tools in scattered pieces. This handbook is the spine — organized bydecisions founders and product engineers actually make, not by vendor changelog.
Each chapter runs the same loop: principle → decision → workflow → artifact.
Maturity tracks depth — refined chapters include scenarios and falsifiers.
Depth pass chapters
Start here for the fullest essays — composite scenarios and falsifiers included.
Inspired by Making Softwareand AI Engineering from Scratch — in the voice of footnotes.