catalog_add_to_cart · ServiceNow MCP Server MCP

WHAT IT DOES

What catalog_add_to_cart does on ServiceNow MCP Server

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

WHY IT NEEDS A POLICY

Why catalog_add_to_cart needs a policy

This tool modifies cart data by adding items, which is a reversible write operation. While it doesn't execute code or delete data, it does commit actions that could have downstream consequences (e.g., unintended procurement requests if chained to checkout). The severity is medium rather than high because the action is containable—items can be removed from carts before checkout.

From the tool's definition Tool name 'catalog_add_to_cart' and description 'Add a catalog item to the shopping cart' indicate a modification action that creates or updates cart state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

catalog_add_to_cart Rate-limited

catalog_add_to_cart 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": {
    "catalog_add_to_cart": {
      "limits": [
        {
          "counter": "catalog_add_to_cart_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 ServiceNow MCP Server, so you can run agents against it safely.

FAQ

Questions about catalog_add_to_cart

What does the catalog_add_to_cart tool do? +

Add a catalog item to the shopping cart. It is categorised as a Write tool in the ServiceNow 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 catalog_add_to_cart? +

Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for catalog_add_to_cart: 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 ServiceNow MCP Server. Nothing to install.

What risk level is catalog_add_to_cart? +

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

Can I rate-limit catalog_add_to_cart? +

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

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

catalog_add_to_cart is provided by the ServiceNow MCP Server MCP server (schwarztim/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.