apple_reminders_create_list · Apple Reminders MCP

WHAT IT DOES

What apple_reminders_create_list does on Apple Reminders

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

WHY IT NEEDS A POLICY

Why apple_reminders_create_list needs a policy

Creating a new list is a write operation that modifies the user's reminders data structure by adding a new container. It is reversible (the list can be deleted), so it does not qualify as Destructive. There are no code execution, financial, or data retrieval aspects. The blast radius is minimal since creating a list has limited negative consequences if triggered unintentionally by an AI agent.

From the tool's definition Tool name contains 'create' and description states 'Create a new reminder list.' This is a reversible write operation that adds new data to the Reminders app.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apple_reminders_create_list Rate-limited

apple_reminders_create_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": {
    "apple_reminders_create_list": {
      "limits": [
        {
          "counter": "apple_reminders_create_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 Apple Reminders, so you can run agents against it safely.

FAQ

Questions about apple_reminders_create_list

What does the apple_reminders_create_list tool do? +

Create a new reminder list. This tool creates a new list with optional color and emblem customization. Args: - name (string, required): Name for the new list - color (string, optional): Hex color code (#RRGGBB) like. It is categorised as a Write tool in the Apple Reminders MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on apple_reminders_create_list? +

Register the Apple Reminders MCP server in PolicyLayer and add a rule for apple_reminders_create_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 Apple Reminders. Nothing to install.

What risk level is apple_reminders_create_list? +

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

Can I rate-limit apple_reminders_create_list? +

Yes. Add a rate_limit block to the apple_reminders_create_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 apple_reminders_create_list completely? +

Set action: deny in the PolicyLayer policy for apple_reminders_create_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 apple_reminders_create_list? +

apple_reminders_create_list is provided by the Apple Reminders MCP server (mggrim/apple-reminders-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.