An action performed by an AI assistant or agent on behalf of a person, using scoped identity and authorization rather than a human session alone. The key governance issue is that the actor is not the user, so audit, scope, and revocation need to reflect delegated execution.
What Delegated Assistant Action Means
Delegated assistant action is the point where an assistant or agent is not merely responding, but executing an authorized task on someone’s behalf. The distinction matters because the system is acting under delegated authority, not under the user’s live interactive session.
How Delegation Changes the Security Model
Once action is delegated, the security question shifts from “did the user ask for it?” to “what was the assistant allowed to do, under what scope, and for how long?” That changes how teams think about approval, auditability, and revocation, because the delegated actor may outlive the initiating session.
Good governance also requires separate treatment of the actor, the initiator, and the evidence trail. A delegated action should be traceable to the person who granted authority, the assistant that executed it, and the specific scope that constrained it.
Identity, Scope, and Auditability
Delegated assistant action is inseparable from authorization design. The assistant needs bounded rights that reflect the task, not a broad standing session that happens to be convenient. If scope is too wide, the action becomes hard to justify, difficult to review, and more dangerous if the assistant is misused or compromised.
Audit records should capture delegation context, not just the final effect. That means preserving who initiated the delegation, what permissions were granted, what tool or system was used, and whether the action was one-time, time-limited, or revocable.
Where Delegated Actions Fail
Delegated assistant action fails when teams treat it as an ordinary user click path. In practice, the assistant may retain access after the original user context has changed, or may continue to act with rights that no longer fit the intended task. That creates a gap between human intent and machine execution.
Revocation is often the weak point. If the delegation cannot be withdrawn cleanly, or if the assistant can reuse authorization outside the expected window, the organisation inherits a lingering access path that was meant to be temporary.
Risk and Threat Considerations
Delegated assistant action creates exposure when delegated rights are broader than the task or when revocation is weak. The main security concern is that an assistant can continue to execute meaningful actions even after the user believes control has ended.
Failure mechanism: Overbroad delegation, weak scoping, or poor token/session lifecycle control lets the assistant act beyond the intended boundary, which can turn a narrow task into a persistent access path.
Impact: Mis-scoped delegated actions can produce unauthorized changes, weak accountability, delayed revocation, and a misleading audit trail that obscures who actually caused the action.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Agentic AI Top 10 addresses the attack and risk surface, while NIST SP 800-53 Rev 5 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Agentic AI Top 10 | ASI03 — Identity & Privilege Abuse | Delegated assistant action depends on constrained agent authority and privilege. |
| Recommendation — Bind delegated actions to scoped agent authority and review privilege boundaries regularly. | ||
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Delegated execution should be limited to the minimum rights needed for the task. |
| AU-2 — Event Logging | Delegated actions need audit records that show who granted and who executed authority. | |
| IA-5 — Authenticator Management | Delegated execution often relies on tokens or secrets whose lifecycle must be governed. | |
| Recommendation — Restrict delegated assistant permissions to the minimum scope needed for each action. Log delegation context, execution details, and revocation events for each assistant action. Control the lifecycle of delegation credentials, tokens, and other secret material. | ||
| NIST SP 800-63 | Digital Identity Guidelines | Delegated action depends on identity binding, assurance, and session-aware authorization. |
| Recommendation — Align delegated authority with verified identity and session assurance requirements. | ||
Practitioner Guidance
Governance implication: Treat delegated assistant action as a distinct authorization pattern, not as a user session extension. The practical requirement is to bind each action to explicit scope, duration, and revocation rules so that review and accountability reflect delegated execution rather than human presence.
Practitioner takeaway: If the assistant can act, then the governance model must explain exactly when, where, and under whose authority that action is valid.
Related resources from NHI Mgmt Group
- Who is accountable when an AI assistant performs a sensitive action after DOM manipulation?
- Who is accountable when a delegated agent performs the wrong tool action?
- Who should be accountable when an AI assistant initiates a recovery action?
- Who is accountable when a delegated action is approved for one party but executed by another?