check_shopping_item · Pantrist MCP: Risk & Policy

WHAT IT DOES

What check_shopping_item does on Pantrist

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

WHY IT NEEDS A POLICY

Why check_shopping_item needs a policy

Checking off a shopping list item is a reversible state change (it can be unchecked), modifying existing data without deletion or irreversible consequences. This is a Write operation with low blast radius since it only affects shopping list item state.

From the tool's definition "Check off a shopping-list item" — marks an item as checked/completed on the shopping list

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

check_shopping_item Rate-limited

check_shopping_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": {
    "check_shopping_item": {
      "limits": [
        {
          "counter": "check_shopping_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 Pantrist, so you can run agents against it safely.

FAQ

Questions about check_shopping_item

What does the check_shopping_item tool do? +

Check off a shopping-list item. The list\. It is categorised as a Write tool in the Pantrist MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on check_shopping_item? +

Register the Pantrist MCP server in PolicyLayer and add a rule for check_shopping_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 Pantrist. Nothing to install.

What risk level is check_shopping_item? +

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

Can I rate-limit check_shopping_item? +

Yes. Add a rate_limit block to the check_shopping_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 check_shopping_item completely? +

Set action: deny in the PolicyLayer policy for check_shopping_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 check_shopping_item? +

check_shopping_item is provided by the Pantrist MCP server (pantrist-dev/pantrist-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.