create_token · Marketo MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_token does on Marketo MCP Server

AI agents use create_token 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 create_token needs a policy

This tool creates a new token, which is a reversible write operation. While tokens in marketing automation platforms can have operational significance (e.g., for personalization in campaigns), the action itself is not destructive (can be undone), does not execute arbitrary code or commands, and does not involve financial transactions.

From the tool's definition Tool name 'create_token' and description 'Create a new token in Marketo' indicate creation of a new resource. Token creation is a reversible data modification operation (tokens can be updated, deleted, or replaced).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_token Rate-limited

create_token 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": {
    "create_token": {
      "limits": [
        {
          "counter": "create_token_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 create_token

What does the create_token tool do? +

Create a new token in Marketo. 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 create_token? +

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

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

Can I rate-limit create_token? +

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

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

create_token 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.