completeReminder · Apple Reminders MCP Server MCP

WHAT IT DOES

What completeReminder does on Apple Reminders MCP Server

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

WHY IT NEEDS A POLICY

Why completeReminder needs a policy

Completing a reminder changes its status but does not delete or destroy data, nor does it execute arbitrary code or move money. The action is reversible via uncompleteReminder. Therefore, it is classified as Write (modifies data reversibly).

From the tool's definition Tool description states 'Mark a reminder as completed', which modifies the state of a reminder from incomplete to complete. This is a reversible change—the sibling tool 'uncompleteReminder' explicitly allows reversal of this action.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

completeReminder Rate-limited

completeReminder 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": {
    "completeReminder": {
      "limits": [
        {
          "counter": "completereminder_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 MCP Server, so you can run agents against it safely.

FAQ

Questions about completeReminder

What does the completeReminder tool do? +

Mark a reminder as completed in Apple Reminders. It is categorised as a Write tool in the Apple Reminders MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on completeReminder? +

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

What risk level is completeReminder? +

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

Can I rate-limit completeReminder? +

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

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

completeReminder is provided by the Apple Reminders MCP Server MCP server (leawn/apple_reminders_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.