Microsoft Agent ID blueprint creation exposes new identity governance gaps

At a glance

What this is: This walkthrough explains how Microsoft Agent ID objects are created in Entra and shows the identity model behind the blueprint, credentials, and agent user relationship.

Why it matters: It matters because IAM teams now have to govern a new class of non-human identity with lifecycle, permission, and logging controls that were designed for older workload patterns.

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.
• 71% of NHIs are not rotated within recommended time frames, increasing the risk of compromise over time.

👉 Read Semperis's guide to creating and governing Microsoft Agent ID objects

Context

Microsoft Agent ID is a new non-human identity pattern, not a human account disguised with different labels. The blueprint, blueprint principal, credential, and agent user objects form a governance chain that identity teams will need to inventory, approve, and review like any other workload identity.

The practical question is whether existing IAM and IGA processes can explain who created the blueprint, what permissions were granted, how credentials are issued, and how the child agent user is offboarded. If those answers are unclear, the control gap is organisational rather than technical.

Key questions

Q: How should security teams govern Microsoft Agent ID objects as non-human identities?

A: Treat the blueprint, blueprint principal, credentials, and agent user as a linked identity chain with separate ownership, approval, and retirement steps. Governance should cover who can create the chain, which credential types are allowed, how permissions are granted, and how every object is revoked when the agent is no longer needed.

Q: What breaks when an agent identity is managed like a normal service account?

A: You lose the object relationships that make the Agent ID model auditable. A normal service-account approach can miss the blueprint, ignore the child agent user, and leave permissions or credentials active after the agent should have been retired, which creates orphaned access and unclear accountability.

Q: Why do federated credentials matter for Agent ID governance?

A: Federated credentials reduce secret handling exposure because they avoid a long-lived shared secret in many deployment patterns. That matters for Agent ID because the credential choice affects rotation burden, leakage risk, and how confidently teams can prove the identity at runtime.

Q: Who should approve creation and permission grants for a new agent identity?

A: Creation should sit with identity governance and application ownership together, while permission grants should be approved separately from object creation. If one approver controls the whole flow, teams usually miss privilege expansion and create an identity that is technically valid but poorly governed.

Technical breakdown

Blueprint principal and agent identity objects

The walkthrough creates a blueprint object, then a tenant service principal that represents that blueprint, and finally an agent identity and agent user tied back to it. That is a layered identity model, not a single account. The important point for governance is that each layer can carry its own permissions, logs, and lifecycle state. In practice, this means an identity team must treat the blueprint as an origin object, the principal as the executable identity, and the agent user as the child object that inherits authority and accountability.

Practical implication: build inventory and review processes that track all three objects as separate governance entities.

Credential creation and authentication paths

The guide shows certificate, federated identity credential, and client secret options, with the client secret explicitly described as not recommended. Those options define how the identity proves itself at runtime. In non-human identity governance, the authentication path matters as much as the object itself because the secret type determines exposure, rotation, and revocation complexity. Where a secret can be copied out of band, the identity becomes harder to contain than a federated or certificate-based pattern.

Practical implication: classify Agent ID credentials by proof method and restrict long-lived secrets where federated or certificate-based trust is feasible.

Logging, permissions, and 1:1 child relationships

The article notes that the blueprint service principal and blueprint ID appear in sign-in logs, and that the agent identity has a 1:1 relationship with a single agent user. That is useful because it creates traceability, but traceability alone is not governance. The permission grants still determine what the blueprint can do, and the 1:1 relationship still needs lifecycle controls for creation, change, and revocation. For IAM teams, that means audit evidence, privilege assignment, and lifecycle closure all have to line up.

Practical implication: verify that logging, permission grants, and offboarding steps are all mapped to the same identity record.

NHI Mgmt Group analysis

Agent ID turns a documentation walkthrough into an identity governance problem. The article is not just showing how to create objects in Entra, it is defining a new machine identity lifecycle with blueprint, principal, credential, and child account states. That means IAM teams must stop thinking about the agent as a single asset and start governing the object chain as a whole. The practitioner conclusion is that visibility, ownership, and review must attach to the full object graph, not just the end user surface.

Blueprint-driven identity creation is a governance choke point, not a convenience feature. The creation flow makes the blueprint the root of trust for the downstream agent identity and agent user. Once that root exists, permissions and credential issuance can be extended in ways that are easy to miss if teams still rely on human-account approval models. The practitioner conclusion is that creation authority, sponsor approval, and delegated permission grants need separate control paths.

Credential choice is the named concept here: blueprint credential trust debt. The guide shows that the blueprint can be authenticated with a client secret, even while acknowledging that this is not recommended. That creates trust debt because the identity model now tolerates a weaker credential path during early lifecycle formation. The practitioner conclusion is to treat the authentication method as a first-class governance decision, not a setup detail.

Agent ID inherits the same lifecycle obligations as other non-human identities. A 1:1 agent user relationship does not reduce governance burden. It simply changes the shape of the offboarding and review problem, because revoking the wrong object leaves the child identity or the blueprint principal behind. The practitioner conclusion is that JML, access review, and revocation processes must be redesigned for linked non-human objects.

Microsoft Graph logging helps, but logs are not lifecycle control. The fact that the blueprint principal and agent identity appear in logs is useful for investigation and attestation, yet it does not answer who can create them, what they can do, or when they should be removed. NIST CSF and OWASP NHI both point in the same direction here: governance must cover creation, access, and retirement. The practitioner conclusion is to align telemetry with lifecycle enforcement, not substitute one for the other.

From our research:

• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface, according to Ultimate Guide to NHIs.
• Only 20% have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them.
• That lifecycle gap is why teams should pair object inventory with 52 NHI Breaches Analysis to understand how unmanaged access becomes incident impact.

What this signals

Blueprint-driven agent identity will force IAM teams to expand their control boundary. A model that creates linked objects, not single accounts, exposes the limits of reviewer workflows built around one principal at a time. When the programme cannot trace creation, credentialing, and child-object retirement together, governance breaks at the handoff point rather than at the login point.

The immediate signal is that non-human identity management is becoming object-graph management. Teams should expect more demand for ownership metadata, sponsor mapping, and lifecycle evidence because agent identities create more than one auditable artefact.

Blueprint credential trust debt: when setup workflows allow weaker authentication paths, the programme inherits risk before the agent is even used. Identity teams should prepare to measure not just whether an identity exists, but whether its creation path already encodes avoidable exposure.

For practitioners

• Inventory Agent ID object chains separately Track the blueprint, blueprint principal, agent identity, and agent user as distinct records in your identity inventory so reviews can map authority and accountability correctly.
• Restrict client secret usage for blueprint authentication Prefer federated identity credentials or certificates where possible, and require explicit exception handling when a client secret is used during blueprint setup.
• Split creation, credential, and permission approvals Do not let one approval cover the full Agent ID lifecycle. Separate the authority to create the blueprint, assign app roles, and create the downstream agent user.
• Bind offboarding to the child and parent objects When an agent is retired, revoke the blueprint principal, any credentials, and the linked agent user together so no orphaned identity remains active.
• Test sign-in logs against lifecycle records Verify that blueprint IDs, service principal IDs, and child agent identities all appear in logs and reconcile those entries back to the owning sponsor and approval record.

Key takeaways

• Microsoft Agent ID introduces a linked non-human identity chain that IAM teams must govern as a lifecycle, not as a single account.
• The main risk is excessive privilege and weak credential choice at creation time, which can outlive the original setup workflow.
• Practitioners should separate approval, credentialing, and offboarding so the blueprint, principal, and child agent are all controlled together.

Key terms

• Agent Identity Blueprint: A blueprint is the originating object used to define and create an agent identity in a tenant. In practice, it becomes the template and control point for downstream identities, so governance must track who created it, what permissions it has, and how it is retired.
• Blueprint Principal: The blueprint principal is the service principal instance created from the blueprint and used for execution and authentication. It matters because it is the operative identity in the chain, which means its permissions, logs, and lifecycle state must be reviewed separately from the blueprint object.
• Agent User: An agent user is the child identity associated with an agent identity, created after the blueprint is authenticated and authorised. It is not a person, but it can still hold access and generate activity, so offboarding and attestations must cover it explicitly.
• Credential Trust Debt: Credential trust debt is the risk created when an identity lifecycle permits a weaker or longer-lived authentication path than the programme would prefer. For agent identities, it appears when setup convenience, such as a client secret, is tolerated even though stronger proof methods exist.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity lifecycle are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Semperis: Creating an agent identity blueprint and its blueprint principal. Read the original.