revoke_trusted_device

THE RISK

Critical Risk

Why revoke_trusted_device needs a policy

Revoking a trusted device is a destructive, one-way action that invalidates a device's trusted status. While it doesn't delete data, it permanently removes a security authorization that would require the device owner to re-authenticate/re-trust. Misuse by an AI agent could lock out legitimate users or devices from accessing the account.

From the tool's definition 'Revoke trusted status for a device' — revoking trust is an irreversible security action that removes a device's trusted status, which cannot be undone without re-authentication or re-authorization

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

POLICY

How to control revoke_trusted_device

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_trusted_device:

policy.json

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

revoke_trusted_device 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

More Linode MCP Server tools

Destructive cancel_account Cancel your account Destructive cancel_backups Cancel backups for a Linode instance Destructive cancel_object_storage Cancel Object Storage service Destructive delete_alert_definition Delete an alert definition Destructive delete_api_token Delete an API token Destructive delete_config_interface Delete an interface from a configuration profile Destructive delete_domain Delete a domain Destructive delete_domain_record Delete a domain record

All 416 Linode MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

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_trusted_device

What does the revoke_trusted_device tool do? +

Revoke trusted status for a device. 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_trusted_device? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for revoke_trusted_device: 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_trusted_device? +

revoke_trusted_device 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_trusted_device? +

Yes. Add a rate_limit block to the revoke_trusted_device 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_trusted_device completely? +

Set action: deny in the PolicyLayer policy for revoke_trusted_device. 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_trusted_device? +

revoke_trusted_device 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 →