An AI agent becomes materially riskier when it can call tools, reach private data, act under delegated identity, or make changes. Governance should follow the authority path: who can invoke the agent, what it can see, what actions it can take, what requires approval, and how every consequential action is reviewed and reversed.
Current as of 2026-08-15
NIST’s February 2026 agent identity concept paper is a draft project concept, not a final standard. NIST AI RMF 1.0 remains voluntary and is being revised.
Decision summary
- Inventory agents separately from ordinary chat tools.
- Give each agent an attributable identity and the least authority needed.
- Require approvals for irreversible, financial, external, privileged, or safety-impacting actions.
- Log intent, inputs, tools, approvals, outcomes, exceptions, and rollback.
Classify by authority, not by model name
- Advisory: produces information for human review.
- Drafting: prepares records or messages but cannot send or commit them.
- Bounded action: performs approved operations inside a narrow scope.
- High-impact action: can affect money, access, production, people, legal duties, or public communications.
Identity and authorization
NIST’s concept paper highlights identification, authorization, auditing, non-repudiation, and prompt-injection considerations for software and AI agents. Avoid shared human credentials. Use short-lived, scoped credentials; separate read and write authority; and make the effective principal visible in logs.
Govern, map, measure, and manage
The NIST AI RMF Core organizes outcomes across Govern, Map, Measure, and Manage. Apply those functions to the full system: model, prompts, tools, data, memory, users, vendors, and operational context.
Test failure and abuse cases
- Prompt injection in retrieved or user-supplied content.
- Cross-tenant, cross-client, or cross-role access attempts.
- Stale approvals, expired credentials, and unavailable dependencies.
- Duplicate, partial, or reordered actions.
- Unsafe output, secret leakage, and rollback failure.
- Operator override, incident isolation, and agent retirement.
Next step
Create an authority register for every deployed agent and remove any tool or credential without a named owner and testable business need. For an environment-specific baseline, request an ITECS technology and security assessment.
Primary Sources
- NIST — Software and AI agent identity concept paper
- NIST AIRC — AI RMF Core
- NIST — AI Risk Management Framework 1.0
Review trigger: Review after any change to tools, credentials, data, memory, user population, model, approvals, vendor, or external action.
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