tiendanube_add_cart_item · Tienda Nube MCP Server MCP

WHAT IT DOES

What tiendanube_add_cart_item does on Tienda Nube MCP Server

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

WHY IT NEEDS A POLICY

Why tiendanube_add_cart_item needs a policy

This tool adds items to a shopping cart, which is a reversible modification of cart data. It does not delete data (not Destructive), does not execute arbitrary code (not Execute), and does not move money directly (not Financial, as it only modifies the cart state prior to checkout).

From the tool's definition Tool description states 'Add a variant to the cart' which creates or modifies cart data. The verb 'Add' and the action of modifying the shopping cart state are indicative of a Write operation that creates/modifies data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tiendanube_add_cart_item Rate-limited

tiendanube_add_cart_item 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": {
    "tiendanube_add_cart_item": {
      "limits": [
        {
          "counter": "tiendanube_add_cart_item_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 Tienda Nube MCP Server, so you can run agents against it safely.

FAQ

Questions about tiendanube_add_cart_item

What does the tiendanube_add_cart_item tool do? +

ADD CART ITEM - Add a variant to the cart (by id or token) with the desired quantity. It is categorised as a Write tool in the Tienda Nube 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 tiendanube_add_cart_item? +

Register the Tienda Nube MCP Server MCP server in PolicyLayer and add a rule for tiendanube_add_cart_item: 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 Tienda Nube MCP Server. Nothing to install.

What risk level is tiendanube_add_cart_item? +

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

Can I rate-limit tiendanube_add_cart_item? +

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

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

tiendanube_add_cart_item is provided by the Tienda Nube MCP Server MCP server (pedrohsguimaraes/nuvem-shop-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.