Treat them as incomplete identity states, not as harmless metadata. A registry entry without a linked identity object should be tracked separately, ownership should be explicit, and no access should be assumed until the identity layer is created and validated. That prevents inventory from being mistaken for enforceable authorization.
Why This Matters for Security Teams
An agent registry record without a linked identity object is not just incomplete inventory. It is an ungoverned security state where ownership, authentication, and authorization can drift apart. If teams treat the record as “known,” they often let tool access, secret issuance, or approval workflows proceed before the identity layer exists. That breaks traceability and makes later remediation far harder than creating the identity correctly up front.
This matters because non-human identity risk is already oversized in most environments. NHI Mgmt Group notes that NHIs outnumber human identities by 25x to 50x in modern enterprises in the Ultimate Guide to NHIs, which means gaps in registry governance scale quickly. The registry is often the first place an automation workload appears, but it is not proof of who or what can act. Guidance from the NIST AI Risk Management Framework and current agentic AI practice both point to the same principle: identity and authority must be established before operation, not inferred from presence in a catalog. In practice, many security teams discover this only after an orphaned entry has already been used to justify access.
How It Works in Practice
The safest pattern is to separate registry state from identity state. A registry entry should be treated as a pending object with explicit ownership, lifecycle status, and an approval path, while the actual identity object remains the only authority for authentication and privilege. Until that identity is created, validated, and bound to a workload or agent, the record should not receive secrets, scopes, or policy exceptions.
Practitioners typically implement this in three layers:
- Registry metadata: name, owner, business purpose, environment, and risk tier.
- Identity binding: cryptographic workload identity, service account, or agent identity object.
- Authorization: runtime policy that grants access only after binding exists and is trusted.
This approach aligns with modern NHI governance in the Ultimate Guide to NHIs and with the direction of the OWASP Agentic AI Top 10, which treats uncontrolled agent capability as a security failure. For agentic workloads, the useful control is not “is it in the registry?” but “has the registry record been converted into a verified workload identity with bounded authority?” That is where runtime guardrails, policy-as-code, and ephemeral secrets become relevant. If the environment supports it, teams should also attach evidence of attestation or provisioning completion before the record can advance from pending to active.
These controls tend to break down in fast-moving CI/CD pipelines where registry creation is automated but identity provisioning is delayed or handled by a separate team.
Common Variations and Edge Cases
Tighter registry controls often increase onboarding friction, so organisations must balance speed against the risk of letting placeholder records become shadow identities. Best practice is evolving for agentic systems, but the current guidance suggests that “temporary” registry entries should still have an owner, expiry, and explicit non-authoritative status. Without those markers, teams lose the ability to distinguish a legitimate pending record from abandoned inventory.
Edge cases appear when the registry record represents a future agent, a vendor-managed integration, or a workload that will not receive a stable identity object until deployment. In those cases, the record still needs compensating controls: no standing credentials, no default entitlements, and automatic expiration if the identity layer is not completed within a defined window. That is especially important for environments that mix human approvals with machine-generated provisioning, because an entry can look approved while still lacking enforceable identity.
For teams that already use service discovery or CMDB-style inventories, the key distinction is simple: discovery systems describe what exists, but they do not establish who can act. Current guidance does not support using registry presence as a substitute for identity proof. The practical test is whether the record can be safely ignored if the identity object never appears. If the answer is no, then the record is already part of the security boundary and must be governed accordingly.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10, OWASP Agentic AI Top 10 and CSA MAESTRO address the attack and risk surface, while NIST AI RMF and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Orphaned registry records are a form of unmanaged non-human identity lifecycle risk. |
| OWASP Agentic AI Top 10 | A-03 | Agent records without identity bindings can become unauthorized autonomous execution paths. |
| CSA MAESTRO | GOV-2 | MAESTRO emphasizes governance and ownership for agentic systems before operational trust. |
| NIST AI RMF | GOVERN | AI RMF governance requires accountable processes for identity, access, and lifecycle decisions. |
| NIST CSF 2.0 | PR.AC-1 | Access control must be based on established identities, not inventory entries alone. |
Require every registry entry to map to a verified NHI lifecycle state before access is considered.
