uncompleteReminder · Apple Reminders MCP Server MCP

WHAT IT DOES

What uncompleteReminder does on Apple Reminders MCP Server

AI agents use uncompleteReminder 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 uncompleteReminder needs a policy

This tool reverses the completion status of a reminder, which is a reversible modification of data state. It does not destroy data (not Destructive), does not execute arbitrary code or commands (not Execute), and has no financial implications (not Financial). The action is Write-category because it modifies existing reminder metadata without side effects beyond the reminder system itself.

From the tool's definition Tool description states "Mark a reminder as incomplete in Apple Reminders" — this modifies the completion status of a reminder, reversing a prior state change.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

uncompleteReminder Rate-limited

uncompleteReminder 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": {
    "uncompleteReminder": {
      "limits": [
        {
          "counter": "uncompletereminder_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 uncompleteReminder

What does the uncompleteReminder tool do? +

Mark a reminder as incomplete 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 uncompleteReminder? +

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

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

Can I rate-limit uncompleteReminder? +

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

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

uncompleteReminder 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.