AI agents call delete_secret to permanently remove resources in Vercel MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Deleting secrets is an irreversible destructive action. Once deleted, secrets cannot be recovered and their absence could break deployed applications or expose missing authentication. This has high blast radius if an AI agent accidentally targets the wrong secret or deletes critical credentials.
From the tool's definition Tool name 'delete_secret' and description 'Delete a secret' explicitly indicate permanent removal of sensitive data (secrets/environment variables) with no recovery mechanism.
Documented attack patterns abuse exactly the kind of access delete_secret gives an agent:
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_secret:
{
"version": "1",
"default": "deny",
"hide": [
"delete_secret"
]
}delete_secret disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Delete a secret. 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.
Register the Vercel MCP Server MCP server in PolicyLayer and add a rule for delete_secret: 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.
delete_secret is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_secret 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.
Set action: deny in the PolicyLayer policy for delete_secret. 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.
delete_secret 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.
Deterministic rules across all 154 Vercel MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
154 Vercel MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.