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Inventory workload identities with agent-like behavior

Implementation Effort: Medium – Requires reviewing existing managed identities and service principals across Azure subscriptions to identify those exhibiting autonomous, agent-like behavior patterns.
User Impact: Low – Identity administration activity; end users are not affected.

Overview

Before the introduction of Microsoft Entra Agent ID, organizations built autonomous workloads — services that authenticate, make decisions, and take actions without direct user interaction — using managed identities and service principals. These workloads are functionally agents, but they lack the governance controls that the agent identity framework provides: centralized registry visibility, lifecycle management, and agent-specific security policies. Without inventorying these existing workload identities, the organization has a population of de facto agents operating outside its agent governance perimeter.

The inventory step identifies which workload identities exhibit agent-like behavior: autonomous operation, access to sensitive resources, cross-service communication patterns, and elevated or persistent permissions. This is not simply listing all managed identities — it is classifying them by behavior to determine which ones warrant migration to the agent identity framework. System-assigned managed identities tied to single-resource lifecycles may not qualify, while user-assigned managed identities shared across multiple resources with broad access scopes likely do.

This supports Verify explicitly by cataloging every identity that behaves autonomously so the organization can validate whether each identity's access scope and lifecycle management are appropriate for its actual behavior. It supports Use least privilege access by identifying workload identities whose permissions were granted under older governance models that may no longer reflect the principle of just-enough access. Without this inventory, agent-like workloads continue to operate under legacy identity constructs that lack the visibility and governance controls needed for a Zero Trust environment, and the organization cannot determine the scope of its agent migration effort.

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