revoke_authorized_app

THE RISK

Critical Risk

Why revoke_authorized_app needs a policy

Revoking OAuth access permanently removes an application's ability to authenticate and act on behalf of the user. This is effectively irreversible (the app must go through the authorization flow again), and misuse by an AI agent could disrupt integrations or services depending on that OAuth app's access.

From the tool's definition 'Revoke access for an authorized OAuth app' — revoking authorization is an irreversible action that removes an app's access token/credentials, which cannot be undone without re-authorization by the user.

Documented attack patterns abuse exactly the kind of access revoke_authorized_app gives an agent:

POLICY

How to control revoke_authorized_app

PolicyLayer is an MCP gateway — it sits between your AI agents and Linode MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for revoke_authorized_app:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "revoke_authorized_app"
  ]
}

revoke_authorized_app disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Linode MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

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EXPLORE

Related tools and policies

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All 416 Linode MCP Server tools →

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Go deeper

Critical-risk tools in Linode MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about revoke_authorized_app

What does the revoke_authorized_app tool do? +

Revoke access for an authorized OAuth app. It is categorised as a Destructive tool in the Linode MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on revoke_authorized_app? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for revoke_authorized_app: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Linode MCP Server. Nothing to install.

What risk level is revoke_authorized_app? +

revoke_authorized_app is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit revoke_authorized_app? +

Yes. Add a rate_limit block to the revoke_authorized_app rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block revoke_authorized_app completely? +

Set action: deny in the PolicyLayer policy for revoke_authorized_app. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides revoke_authorized_app? +

revoke_authorized_app is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Linode MCP Server tool call.

Start from Linode MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →