marketo_delete_lead

Permanently delete a lead by its numeric ID. This action cannot be undone.

SERVERMarketo MCP Server SOURCEalexleventer/marketo-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexleventer-marketo-mcp/marketo-delete-lead.md

WHAT IT DOES

What marketo_delete_lead does on Marketo MCP Server

AI agents call marketo_delete_lead to permanently remove resources in Marketo MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why marketo_delete_lead is rated Critical

The tool irreversibly deletes lead data from Marketo. The description explicitly states the deletion is permanent and cannot be undone, which is the defining characteristic of the Destructive category. While not financial in itself, the loss of customer/prospect data could have significant business impact.

From the tool's definition "Permanently delete a lead by its numeric ID. This action cannot be undone."

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs marketo_delete_lead safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Marketo MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For marketo_delete_lead, this is the rule to start with:

marketo_delete_lead Hidden

marketo_delete_lead is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

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

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Marketo MCP Server, apply this rule, and every marketo_delete_lead call is checked against it from then on.

FAQ

Questions about marketo_delete_lead

What does the marketo_delete_lead tool do? +

Permanently delete a lead by its numeric ID. This action cannot be undone. It is categorised as a Destructive tool in the Marketo 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 marketo_delete_lead? +

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

What risk level is marketo_delete_lead? +

marketo_delete_lead 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 marketo_delete_lead? +

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

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

marketo_delete_lead is provided by the Marketo MCP Server MCP server (alexleventer/marketo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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