2 · Prototype
The design brief becomes something clickable. The design hire generates; the CPO holds the rubric.
The CPO skills
Section titled “The CPO skills”- cpo-brief — its demonstration list is the rubric for the whole phase: what a reviewer must be able to click through to call the prototype done.
The generation itself belongs to the design seat (now hiring — candidates are Impeccable and Claude Design). The stack never does the design craft; it defines what must be demonstrable and checks that it is.
Why prototypes come before plans
Section titled “Why prototypes come before plans”Generation is cheap now. The brief fixes what stays constant — the user, the moments, the flows, the constraints — and leaves the visual space open, so several candidates can be generated and judged against one stable rubric. You choose by clicking, not by imagining.
Deliverables
Section titled “Deliverables”The clickable prototype — a walkable artifact of the proposed experience.
Who participates
Section titled “Who participates”Design generates; Product reviews against the brief.