custom_unapprove_email_program · Marketo MCP Server MCP

WHAT IT DOES

What custom_unapprove_email_program does on Marketo MCP Server

AI agents use custom_unapprove_email_program 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_unapprove_email_program needs a policy

Unapproving an email program changes its status from approved to unapproved, preventing it from being sent/active. This is a reversible state modification (Write), not a deletion. However, it could have significant operational impact if an active campaign is unapproved mid-execution. Severity is high because it could disrupt live marketing campaigns and communications.

From the tool's definition 'custom_unapprove_email_program' - unapproving an email program reverts its approval state, which is a reversible state change (it can be re-approved). Tool calls 'Marketo REST API directly'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

custom_unapprove_email_program Rate-limited

custom_unapprove_email_program 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_unapprove_email_program": {
      "limits": [
        {
          "counter": "custom_unapprove_email_program_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_unapprove_email_program

What does the custom_unapprove_email_program 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_unapprove_email_program? +

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

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

Can I rate-limit custom_unapprove_email_program? +

Yes. Add a rate_limit block to the custom_unapprove_email_program 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_unapprove_email_program completely? +

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

custom_unapprove_email_program 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.