Policy poured in concrete, not ink: the Non-Agentic Filter's four absolute rules between hospital IT and the deterministic estate; the A7 sole gateway; the A12 [P+N] terminal gate; ward-matched WM-Series stacks; the x.1 hardware heartbeat with the Fail-Loud Doctrine — silence cannot be faked — and the 10-Point Sovereignty Audit where a single failure locks the system in maintenance. Audit objects, not promises.