4 · Build
Agents build in reviewed units. Verification against the acceptance criteria happens inside the phase — before anything reaches you.
The CPO skills
Section titled “The CPO skills”- cpo-dispatch — ready cards become worktrees that build themselves, one agent per card.
- cpo-build — runs the plan unit by unit; every diff is reviewed against the spec before the next unit starts.
- cpo-verify — drives the running product against the card’s acceptance criteria and attaches the evidence to the ticket.
The implementation craft — tests, architecture, debugging, code review — belongs to the Eng seat. The stack keeps only the contract: units trace to acceptance criteria, review happens before the next unit, and nothing moves on without verification.
The checkpoint
Section titled “The checkpoint”Human review, with evidence. An agent stops here and shows you proof of the thing working — screenshots and recordings on the ticket, not assurances in a chat.
Deliverables
Section titled “Deliverables”The change (reviewed units on the card’s branch) · verification evidence · decision records.
Who participates
Section titled “Who participates”Eng builds; Ops runs the machinery; the CPO holds the evidence standard.