create_marketing_event · Shopify Graphql MCP: Risk & Policy

WHAT IT DOES

What create_marketing_event does on Shopify Graphql

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

WHY IT NEEDS A POLICY

Why create_marketing_event needs a policy

This tool creates (writes) a new marketing event record in Shopify, which is a reversible operation—marketing events can be updated or deleted later. It does not execute arbitrary code, delete data irreversibly, move money, or trigger financial transactions.

From the tool's definition Tool name 'create_marketing_event' and description 'Create a new marketing event' indicate creation of a new data record in Shopify's marketing system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_marketing_event Rate-limited

create_marketing_event 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_marketing_event": {
      "limits": [
        {
          "counter": "create_marketing_event_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 Shopify Graphql, so you can run agents against it safely.

FAQ

Questions about create_marketing_event

What does the create_marketing_event tool do? +

Create a new marketing event. It is categorised as a Write tool in the Shopify Graphql 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_marketing_event? +

Register the Shopify Graphql MCP server in PolicyLayer and add a rule for create_marketing_event: 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 Shopify Graphql. Nothing to install.

What risk level is create_marketing_event? +

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

Can I rate-limit create_marketing_event? +

Yes. Add a rate_limit block to the create_marketing_event 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_marketing_event completely? +

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

create_marketing_event is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.