apple_reminders_create · Apple Reminders MCP: Risk & Policy

WHAT IT DOES

What apple_reminders_create does on Apple Reminders

AI agents use apple_reminders_create 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 needs a policy

This tool creates new data (reminders) in Apple Reminders, which is a reversible write operation. The user can later delete or modify the created reminder. There is no irreversible deletion (Destructive), no code execution (Execute), no financial impact (Financial), and it goes beyond simple retrieval (Read).

From the tool's definition Tool description states 'Create a new reminder' and 'creates a new reminder with support for due dates, priorities, notes' — explicit creation operation that modifies state by adding a new reminder to Apple Reminders.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apple_reminders_create Rate-limited

apple_reminders_create 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": {
      "limits": [
        {
          "counter": "apple_reminders_create_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

What does the apple_reminders_create tool do? +

Create a new reminder in Apple Reminders. This tool creates a new reminder with support for due dates, priorities, notes, and natural language date parsing. You can specify which list to add the reminder to, or it will be added to the default list. Args: - name (string, required): The reminder. 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? +

Register the Apple Reminders MCP server in PolicyLayer and add a rule for apple_reminders_create: 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? +

apple_reminders_create 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? +

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

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

apple_reminders_create 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.