// Contrast
Fail-open vs fail-closed
Fail-open systems optimize availability: they execute unless a guard explicitly blocks. Fail-closed systems optimize safety: they do not execute unless explicitly permitted. AI systems that touch money, safety, or regulated data usually require fail-closed semantics at the execution boundary.
// SILENCE
A third outcome
TrigGuard’s three-valued decision model includes SILENCE for cases where proceeding or explicitly denying would be misleading. This is part of conservative automation, see decision model.
// Related
Cluster
// Hub
Category pillar
Return to the cluster hub: AI execution governance.