create_shopping_list · Mcp Mealie MCP: Risk & Policy

WHAT IT DOES

What create_shopping_list does on Mcp Mealie

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

WHY IT NEEDS A POLICY

Why create_shopping_list needs a policy

This tool creates a new shopping list entity, which is a reversible write operation. It does not read-only data, execute external code, delete data irreversibly, or commit financial transactions. The blast radius is minimal—a shopping list can be easily deleted or modified by the user. Severity is low because the impact is confined to the user's shopping list management within the Mealie application.

From the tool's definition Tool description states 'Create a shopping list with the given name.' The verb 'Create' and the action of adding a new shopping list to the system indicate data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_shopping_list Rate-limited

create_shopping_list 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_shopping_list": {
      "limits": [
        {
          "counter": "create_shopping_list_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 Mcp Mealie, so you can run agents against it safely.

FAQ

Questions about create_shopping_list

What does the create_shopping_list tool do? +

Create a shopping list with the given name. It is categorised as a Write tool in the Mcp Mealie 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_shopping_list? +

Register the Mcp Mealie MCP server in PolicyLayer and add a rule for create_shopping_list: 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 Mcp Mealie. Nothing to install.

What risk level is create_shopping_list? +

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

Can I rate-limit create_shopping_list? +

Yes. Add a rate_limit block to the create_shopping_list 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_shopping_list completely? +

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

create_shopping_list is provided by the Mcp Mealie MCP server (obrien-matthew/mcp-mealie). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.