custom_update_email_template2 · Marketo MCP Server MCP

WHAT IT DOES

What custom_update_email_template2 does on Marketo MCP Server

AI agents use custom_update_email_template2 to create or update resources in Marketo MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Marketo MCP Server environment.

WHY IT NEEDS A POLICY

Why custom_update_email_template2 needs a policy

This tool updates email templates in Marketo, which is a Write operation—it creates or modifies data reversibly. It does not delete (not Destructive), does not involve financial transactions (not Financial), and does not execute arbitrary code or shell commands (not Execute).

From the tool's definition Tool name 'custom_update_email_template2' combined with description indicating it 'Calls the Marketo REST API directly' and the server's stated purpose of 'comprehensive management of Marketo assets including...emails' establishes this modifies email…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

custom_update_email_template2 Rate-limited

custom_update_email_template2 stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "custom_update_email_template2": {
      "limits": [
        {
          "counter": "custom_update_email_template2_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Marketo MCP Server, so you can run agents against it safely.

FAQ

Questions about custom_update_email_template2

What does the custom_update_email_template2 tool do? +

[CUSTOM] Calls the Marketo REST API directly (not Adobe's native MCP). It is categorised as a Write tool in the Marketo MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on custom_update_email_template2? +

Register the Marketo MCP Server MCP server in PolicyLayer and add a rule for custom_update_email_template2: 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_update_email_template2? +

custom_update_email_template2 is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit custom_update_email_template2? +

Yes. Add a rate_limit block to the custom_update_email_template2 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_update_email_template2 completely? +

Set action: deny in the PolicyLayer policy for custom_update_email_template2. 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_update_email_template2? +

custom_update_email_template2 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.