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To review and revoke an autonomous AI agent’s permissions, first inventory its identity, owner, tools, connected accounts, credentials and downstream resources. Then remove each grant at the system that issued it—not just by switching off a tool—and verify with audit logs and a test request that access is no longer effective. A removed grant may not invalidate tokens already issued, so revocation is not complete until you have checked the agent’s actual access paths.
What can the agent access?
Start with the agent’s effective capabilities, not the list of tools visible in its builder. An agent may use its own identity, act through a signed-in user, inherit access from group membership, use a connected provider account, or present a credential to a downstream API. Each layer can have a separate owner and revocation control.
Identify the agent and accountable owner
- Record the agent’s unique identity, named owner, approver, purpose and deployment environment.
- List the task it is approved to perform and the data and systems it needs for that task.
- Note connected accounts, service principals, groups, access packages, sub-agents and any cross-tenant or guest access paths.
Microsoft recommends unique agent identities with named owners and documentation of purpose, approved data access, tool dependencies and operating environment in its least-privilege guidance for AI agents.
Build a capability inventory
For every permission or integration, record the resource, data scope, allowed actions (such as read or write), granting identity, approving owner and credential lifecycle owner. Include identity-provider roles, delegated OAuth scopes, app-only permissions, tool and action settings, group assignments, user accounts, tokens and downstream APIs or data stores. A tool being enabled does not prove that the agent can use it, and a tool being disabled does not prove that an existing provider grant has been removed.
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Compare each capability with the task it serves. Narrow broad access to the smallest practical resource and action scope, remove grants the agent no longer uses, and allowlist only reviewed tools. For high-impact actions, consider approval gates or time-bound elevation. Microsoft recommends task-scoped authorization and reviewing effective permissions across roles, tools and downstream systems in the same agent identity guidance.
Which authorization layer holds the grant?
Before changing settings, determine how the agent obtained access. Common mechanisms include delegated user consent, app-only application permissions, role assignments, group membership, an access package, a platform’s tool/action policy, or authorization maintained by a connected service. These mechanisms are not interchangeable: changing a tool policy may block an invocation while leaving the underlying identity-provider grant in place.
Microsoft Entra: delegated versus app-only access
In Microsoft’s Microsoft 365 examples, delegated permissions let an agent act on behalf of a signed-in user, while application permissions let an autonomous agent act with app-only access. In tokens, delegated scopes appear in the scp claim and application permissions in the roles claim. The distinction helps identify whose access is being exercised, but inspect the actual grants and assignments in the tenant rather than relying only on a token or configuration label. See Microsoft’s guidance on agent access to Microsoft 365 resources.
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ChatGPT connected apps: action settings versus provider authorization
ChatGPT’s app-permission setting controls whether ChatGPT asks before using an available action; it does not itself grant source-system access or revoke consent already given to the provider. OpenAI states: “Changing an app permission does not disconnect the app or revoke access already granted to a provider account.” Treat app enablement, workspace role access, action availability, action approval and the provider’s OAuth authorization as separate controls. OpenAI describes these distinctions in Managing app permissions in ChatGPT and its admin controls guidance for plugins and apps.
How do you remove the grant?
Revoke access at the layer that issued or stores it. If the agent has more than one identity or route to a resource, review each route; removing one assignment will not remove a separate user consent or app-only permission.
Microsoft Entra example
- In the Microsoft Entra admin center, open Enterprise applications > All applications, select the application used by the agent, then open Permissions. Review both delegated permission grants and application role assignments. Microsoft documents this review path in Review permissions granted to enterprise applications.
- For every grant that is no longer needed, use the supported portal control or the documented Microsoft Graph or PowerShell method to remove the relevant OAuth permission grant or app role assignment. Check user and group assignments and other access paths as well; removing a single grant may leave another effective route.
- Record what was removed and retain the change evidence. For command-line or API procedures, follow the current Microsoft documentation for the exact operation and required administrative role rather than assuming a permission name or API call.
ChatGPT connected-app example
- In ChatGPT, open Settings, then Apps or Plugins as presented in your product surface.
- Select the app and the connected account, then use its disconnect control. This stops future access through that connected account; changing action approval alone does not disconnect it.
- Check whether the provider has a separate account-unlink or authorization-revocation control, and use it when appropriate. In managed workspaces, review role access, app enablement, action controls and provider authorization independently.
Labels and available controls can vary by product surface, app and workspace. OpenAI’s connected-app help and workspace admin guidance describe the relevant distinctions; consult current product documentation for the interface you administer.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How do you contain a risky agent and verify revocation?
For an urgent concern, block new activity while you remove the underlying access. Microsoft advises testing revocation paths such as disabling the agent, rotating credentials, invalidating tokens and removing stale permissions in its least-privilege guidance.
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- Remove the relevant grants at their issuing layers. Rotate or invalidate credentials when appropriate, including credentials cached outside the agent platform.
- Inspect identity-provider and application audit records for the permission change. Microsoft’s application permission activity logs include events for adding and removing app role assignments and delegated grants.
- After the change, attempt a representative tool call or downstream request using the affected identity and resource. Confirm that the request is denied and that no alternate identity or credential still succeeds.
- Record the test, its time, the identity and resource used, the observed result and any remaining access path.
Do not assume removal takes effect instantly everywhere. An already-issued access token can remain valid for its lifetime in some cases, and propagation and enforcement depend on the provider and resource configuration. Microsoft’s emergency user-access guidance describes this token caveat; it is not a substitute for agent-specific testing. Report access as revoked only after checking behavior in the deployment.
What should the review record contain?
Keep a concise record so another administrator can understand both the intended access and the result of removing it.
- Agent identity, owner, reviewer, review date, purpose and environment.
- Resources, data scopes, actions, credentials, integrations and authorization paths examined.
- Grants removed or narrowed, the system where each change was made, and relevant audit evidence.
- Validation method and result, including any token or downstream access that remained temporarily usable.
Repeat the review when the agent’s purpose, tools, data scope or deployment environment changes. Microsoft recommends reviewing effective permissions and rechecking access after material changes in its agent guidance.
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