doc-flow Purpose Orchestrate the Specification-Driven Development (SDD) workflow . does not create artifacts itself; it points you at the right skill, explains how the layers connect, and enforces the rules that keep the chain coherent. Layer : cross-cutting (no upstream; routes into all 8 layers). Use the artifact skills for creation — , plus for supplementary docs. Authoritative spec: and . When to Use - You are unsure which skill applies to the task at hand. - You need an overview of the 8-layer flow or where you are in it. - You are starting a brand-new project — run first to scaffold fol…