They should re-check whether the resumed workflow still has the right context, approvals, and permissions to continue. A paused agent may be acting on stale conditions, so resumption should not be treated as automatic continuity. The safer approach is to define which steps can resume freely and which must be revalidated before completion.
Revalidate the agent’s working context before letting it continue
When an agent resumes after an interruption, teams should treat the restart as a fresh control point, not as an automatic continuation of the prior run. The key question is whether the workflow still has the same context, approvals, and permissions that existed before the pause. If any of those changed, the agent needs a new decision boundary before it proceeds.
That matters because interruptions are where stale assumptions accumulate. The agent may still hold references, tokens, task state, or intended actions that were valid earlier but no longer match the current request, environment, or policy. For that reason, resumption should be designed as a checkpointed state transition, with some steps allowed to resume and others forced back through review.
For AI agents that act on behalf of users, a strong reference point is AI Agent Authorisation Guide, because it frames authorisation as per-action and task-scoped rather than one-time and open-ended. That is the right mental model for resumption: the authority to start a workflow does not automatically prove authority to finish every remaining step.
Which steps can resume, and which must be revalidated?
The practical distinction is between inert workflow state and security-sensitive decision points. Purely mechanical progress, such as restoring intermediate work product, may be safe to resume if the context is still current. By contrast, any step that changes data, issues a request, approves a transaction, exposes a secret, or spends privilege should be revalidated before execution.
This is especially important when the workflow spans multiple systems or uses delegated access. A paused workflow can cross from “prepared” to “unsafe” simply because the underlying conditions changed while it was idle. Teams should explicitly define the restart policy for each workflow class, including when the agent may continue silently, when it must re-check human approval, and when it should discard the prior execution context and begin again.
For agent identity and lifecycle handling, Agentic AI Identity Guide is a useful companion because it separates identity, delegation, registration, and retirement. That separation helps teams decide whether the resumed agent is continuing under the same identity context or has crossed a boundary that requires fresh verification.
Resumption controls should limit stale approvals, over-scoped access, and hidden side effects
A paused agent is risky when the original approval has expired, the scope has broadened, or the environment has changed enough that earlier assumptions no longer hold. The safest pattern is to couple resumption with policy checks that can detect expired approvals, revoked access, changed destinations, and any new dependency on privileged or sensitive actions. Where the action is consequential, resumption should require an explicit decision rather than a silent restart.
That is why observability matters. Teams need to know what the agent had already done before the interruption, what it still plans to do, and whether the resume event itself should trigger review. A good resume design leaves an audit trail that distinguishes continuation from re-authorisation, so responders can tell whether the agent resumed safely or simply inherited stale authority.
If you want a broader control model for this behaviour, Zero Trust for AI Agents is relevant because it treats every action as something to verify, not something to inherit. That approach aligns well with paused workflows, where the safest default is continuous validation rather than trust in prior state.
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 Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Agentic AI Top 10 | ASI03 — Identity & Privilege Abuse | Resumed agents can act on stale authority or permissions. |
| ASI09 — Human-Agent Trust Exploitation | Pause and resume flows can rely on outdated human trust or approval. | |
| Recommendation — Revalidate the agent’s effective authority before allowing continuation. Require fresh confirmation when resumption depends on prior human approval. | ||
| NIST SP 800-53 Rev 5 | IA-5 — Authenticator Management | Resumption depends on whether credentials, tokens, or sessions remain valid. |
| AC-6 — Least Privilege | A resumed workflow should not inherit more access than the next step needs. | |
| Recommendation — Check credential and session validity before the agent resumes. Limit resumed actions to the minimum permissions required for that step. | ||
| NIST Zero Trust (SP 800-207) | Zero Trust Architecture | Resumption is a fresh trust decision that should be re-evaluated each time. |
| Recommendation — Verify each resumed action instead of trusting earlier workflow state. | ||
Practitioner Guidance
What to prioritise: Separate low-risk resumptions from security-sensitive ones. If the resumed step can change data, trigger an external action, or consume privilege, require revalidation before the agent continues.
What to verify: Confirm that the resumed workflow still has current context, current approval, and current permissions. If any input, destination, or authorisation boundary changed during the pause, treat the workflow as stale.
Decision rule: If the pause could have invalidated the reason the agent was allowed to act, do not resume automatically. Re-check or re-authorise first, then let the agent continue only within the narrowed scope that is still valid.
Practitioner takeaway: Resume is a control decision, not a convenience feature, and the safest designs make the agent prove that its authority is still valid before it takes the next consequential step.