Connect external agent platforms to Agent 365 via registry sync
Implementation Effort: Medium – Requires coordinating with teams that manage AWS Bedrock and Google Vertex AI environments to obtain authentication credentials, configure platform connections, and validate sync results.
User Impact: Low – Admin-only activity; synced agents appear in the registry for governance but do not change end-user workflows.
Overview
Organizations that deploy AI agents across multiple cloud platforms — Amazon Bedrock, Google Vertex AI, and Microsoft 365 — lack a unified view of their agent population. Each platform maintains its own agent inventory with its own metadata format, and without centralized visibility, security teams cannot assess cross-platform risk, enforce consistent governance, or even determine how many agents the organization operates. Agents built on non-Microsoft platforms may access organizational data through API integrations, operate with credentials managed outside Entra, and interact with users through channels that bypass Microsoft 365 governance controls. These agents represent a blind spot that grows with every new deployment.
Registry sync in Microsoft Agent 365 addresses this by enabling administrators to securely connect external AI agent environments to the Agent 365 registry in the Microsoft 365 admin center. Once a connection is established and authenticated, agents from the external platform synchronize into the same registry that governs Microsoft-built and organization-published agents. Synced agents gain registry metadata — name, platform, region, sync status — and become subject to a subset governance actions available for other agents in the registry, starting with deletion for platforms whose APIs support it. The initial preview supports Amazon Bedrock and Google Vertex AI, with additional platforms planned. For full integration of controls, then integration with A365 SDK is needed.
This supports Verify explicitly by bringing externally deployed agents into the same inventory surface where security teams validate agent identity, ownership, and risk posture — rather than relying on separate platform consoles that may not be accessible to the security team. It supports Assume breach by ensuring that agents operating on non-Microsoft platforms are visible to the organization's governance controls, so that a compromised or misconfigured external agent does not operate undetected simply because it was built outside the Microsoft 365 ecosystem. Without registry sync, organizations govern only the agents they can see in the Microsoft 365 admin center, while an unknown number of agents on external platforms operate without centralized oversight, risk assessment, or lifecycle management.