get_lead_changes

Get data value changes for a lead from Marketo.

SERVERMarketo MCP Server SOURCEtyron-pretorius/marketo-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/tyron-pretorius-marketo-mcp/get-lead-changes.md

WHAT IT DOES

What get_lead_changes does on Marketo MCP Server

AI agents call get_lead_changes to retrieve information from Marketo MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_lead_changes is rated Low

This tool retrieves historical change data for a lead—a read-only query operation. It queries existing information without creating, modifying, deleting, or executing any operations.

From the tool's definition Tool name 'get_lead_changes' and description 'Get data value changes for a lead from Marketo' indicate pure data retrieval with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_lead_changes 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 get_lead_changes, this is the rule to start with:

get_lead_changes Allowed

get_lead_changes is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_lead_changes": {}
  }
}

ALLOW ONLY 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 get_lead_changes call is checked against it from then on.

FAQ

Questions about get_lead_changes

What does the get_lead_changes tool do? +

Get data value changes for a lead from Marketo. It is categorised as a Read tool in the Marketo MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_lead_changes? +

Register the Marketo MCP Server MCP server in PolicyLayer and add a rule for get_lead_changes: 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 get_lead_changes? +

get_lead_changes is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_lead_changes? +

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

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

get_lead_changes is provided by the Marketo MCP Server MCP server (tyron-pretorius/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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