1Mutable Reference TrustA mutable reference is a convenient name that can point somewhere else tomorrow; trusting it blindly is how stable systems inherit surprise.Governance 2Plaintext JournalA plaintext journal is a durable, searchable record kept in ordinary text files instead of a specialized app or format.Governance 3Unsupervised PerimeterUnsupervised models can watch the security edge for unfamiliar behavior, but they need careful scope, context, and human judgment.Governance 4Documented Defence That Doesn't ExistA documented defence is only real when it changes what can happen in the system, and evidence proves it is still working.Governance 5Internal-to-Product GapAn internal capability becomes a product only when it is reliable, explainable, supported, and valuable beyond its original team.Governance