apple_reminders_complete · Apple Reminders MCP

WHAT IT DOES

What apple_reminders_complete does on Apple Reminders

AI agents use apple_reminders_complete 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_complete needs a policy

This tool creates or modifies data (reminder completion status) in a reversible manner. It can be toggled back, making it Write rather than Destructive. The severity is medium because an AI agent could mark many reminders complete or incomplete without user intent, creating confusion and loss of task visibility, but the action is reversible.

From the tool's definition Tool name and description indicate state modification: 'Mark a reminder as complete or incomplete' and 'toggles the completion status'. This is a reversible state change (complete → incomplete or vice versa), not data deletion or external execution.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

apple_reminders_complete Rate-limited

apple_reminders_complete 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_complete": {
      "limits": [
        {
          "counter": "apple_reminders_complete_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_complete

What does the apple_reminders_complete tool do? +

Mark a reminder as complete or incomplete. This tool toggles the completion status of a reminder. When marked complete, the completion date is automatically set. Args: - id (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_complete? +

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

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

Can I rate-limit apple_reminders_complete? +

Yes. Add a rate_limit block to the apple_reminders_complete 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_complete completely? +

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

apple_reminders_complete 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.