The
people.

AI builds. Stewards govern. Owners own.

Owner

Signs for the whole project: Contract, Access, Blueprint, Full sign-off and Delivered. Never each build phase.

Human

Stakeholder

Signs a build phase when the Master Blueprint or their Build Inspector calls for it.

A department leader or build-phase owner

Build Inspector

Runs each build phase's tests and approves.

An assigned tester from the stakeholder's department

Chief Architect

Owns the Master Blueprint, signs Readiness, approves the merge list and signs the single merge to main for each build phase.

Human, certified

Build Architect

Per build phase, writes and signs the build spec and its acceptance criteria, and updates the spec when an answer changes it.

Human, certified

Build Foreman

Runs the build as it happens: clears bottlenecks, leads human and AI coders, and runs the inspection after each build phase.

Human; ours or the Owner's

Customer Crew

Code beside the In-Haus Crew and check the code against the Building Code.

The customer's developers

Building Code Owner

Answer questions about their area of the Building Code by signed link, with a named backup.

Named per area at Contract; email only

Stewards

Design, Build and Delivery Stewards govern and sign their gates. No AI holds a Steward title.

Human, certified

Chief of Staff

The single channel for people: reads back what it heard, routes the work and keeps the record. It never decides or signs.

AI

In-Haus Crew

Build, test and draft. An AI manager approves each agent's work before people see it. The crew never decides or signs.

AI agents and AI managers