refresh_shop_cart · Aareguru MCP Server MCP: Risk & Policy

WHAT IT DOES

What refresh_shop_cart does on Aareguru MCP Server

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

WHY IT NEEDS A POLICY

Why refresh_shop_cart needs a policy

Refreshing cart and checkout state is a Write operation as it updates session state. However, the description is vague and doesn't indicate financial transactions directly (no money movement, just state refresh). The presence of sibling tools like create_checkout_session and complete_checkout suggests a payment flow context, but this tool itself only refreshes/syncs state rather than committing financial obligations.

From the tool's definition 'Refresh cart and checkout state for a session' — modifies/updates the state of a shopping cart and checkout session

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

refresh_shop_cart Rate-limited

refresh_shop_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": {
    "refresh_shop_cart": {
      "limits": [
        {
          "counter": "refresh_shop_cart_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Aareguru MCP Server, so you can run agents against it safely.

FAQ

Questions about refresh_shop_cart

What does the refresh_shop_cart tool do? +

Refresh cart and checkout state for a session (called from UI). It is categorised as a Write tool in the Aareguru 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 refresh_shop_cart? +

Register the Aareguru MCP Server MCP server in PolicyLayer and add a rule for refresh_shop_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 Aareguru MCP Server. Nothing to install.

What risk level is refresh_shop_cart? +

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

Can I rate-limit refresh_shop_cart? +

Yes. Add a rate_limit block to the refresh_shop_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 refresh_shop_cart completely? +

Set action: deny in the PolicyLayer policy for refresh_shop_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 refresh_shop_cart? +

refresh_shop_cart is provided by the Aareguru MCP Server MCP server (schlpbch/aareguru-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.