delete_auth_token

THE RISK

Critical Risk

This tool permanently removes/invalidates an authentication token, preventing its further use. This action cannot be undone and represents an irreversible change to the authentication infrastructure. While not data destruction in the traditional sense, token invalidation is a destructive operation that cannot be reversed without re-issuing a new token.

From the tool's definition Tool name: 'delete_auth_token'; description: 'Invalidate an authentication token'. The verb 'delete' combined with 'invalidate' indicates irreversible removal of an authentication credential.

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

HOW TO CONTROL DELETE_AUTH_TOKEN

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

policy.json

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

delete_auth_token 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 Vercel 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

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FAQ

What does the delete_auth_token tool do? +

Invalidate an authentication token. It is categorised as a Destructive tool in the Vercel 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 delete_auth_token? +

Register the Vercel MCP Server MCP server in PolicyLayer and add a rule for delete_auth_token: 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 Vercel MCP Server. Nothing to install.

What risk level is delete_auth_token? +

delete_auth_token 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 delete_auth_token? +

Yes. Add a rate_limit block to the delete_auth_token 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 delete_auth_token completely? +

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

delete_auth_token is provided by the Vercel MCP Server MCP server (quegenx/vercel-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 Vercel MCP Server tool call.

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154 Vercel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT DELETE_AUTH_TOKEN ON VERCEL MCP SERVER DOES

// THE RISK

// HOW TO CONTROL DELETE_AUTH_TOKEN

// EXPLORE