Zof is an independent verification and control layer that sits between AI coding agents and production systems. It uses a continuously updated System Graph to map services, dependencies, and blast radius for every proposed change. Changes must collect evidence across up to 19 verification domains before receiving policy-governed approval. Zof integrates with existing CI/CD, cloud, and observability tooling without replacing them, and generates audit-ready compliance evidence for SOC 2, ISO, and executive reviews.