Continuous identity assurance keeps identity established for the length of a session rather than asserting it once at login, and uses that live assurance to authorize each consequential action. Zero Trust asks for per-request verification, but most deployments verify the token rather than the operator: a valid token proves a credential was presented, not who is presenting it now. Agentic AI made the gap concrete, because software can operate any interface a human can operate using the human's own authenticated session. MagenTrust implements the category through MAGEN Gate for presence at entry, MAGEN Miner for interaction intelligence, MAGEN IAM Guard for continuous trust signals into identity decisions, MagenMCP for machine-to-machine trust proofs across agent hops, and the Human Exclusion Zone for machine-only perimeters where a human signal is the anomaly. The runtime deploys inside the network perimeter with no data egress, and rollout is staged through dry run, shadow mode, and per-service enforcement.