custom_get_leads_by_filter

A read tool on the Marketo MCP server.

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/custom-get-leads-by-filter.md

WHAT IT DOES

What custom_get_leads_by_filter does on Marketo MCP Server

AI agents call custom_get_leads_by_filter 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 custom_get_leads_by_filter is rated Low

This tool fetches or lists lead records matching specified filter criteria. Getting/filtering data is a Read operation—it queries existing information without creating, modifying, deleting, or executing external operations. No description provided reduces confidence slightly, but the verb 'get' and filter-based retrieval pattern are unambiguous indicators of Read category.

From the tool's definition Tool name 'custom_get_leads_by_filter' uses 'get' verb which retrieves data; described as querying leads by filter criteria.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

custom_get_leads_by_filter Allowed

custom_get_leads_by_filter 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": {
    "custom_get_leads_by_filter": {}
  }
}

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 custom_get_leads_by_filter call is checked against it from then on.

FAQ

Questions about custom_get_leads_by_filter

What does the custom_get_leads_by_filter tool do? +

custom_get_leads_by_filter is a read tool on the Marketo MCP Server MCP server. 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 custom_get_leads_by_filter? +

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

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

Can I rate-limit custom_get_leads_by_filter? +

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

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

custom_get_leads_by_filter 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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