create_reminder_list · Reminders MCP Server MCP

WHAT IT DOES

What create_reminder_list does on Reminders MCP Server

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

WHY IT NEEDS A POLICY

Why create_reminder_list needs a policy

This tool creates or adds new data (a reminder list) in a reversible manner. It does not execute arbitrary code, delete data irreversibly, or move money. While it modifies the user's reminder system, the action can be undone by deleting the created list.

From the tool's definition Tool name 'create_reminder_list' and description states 'Create a new reminder list in macOS Reminders app.' This is a create operation that adds a new data structure to the Reminders app.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_reminder_list Rate-limited

create_reminder_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": {
    "create_reminder_list": {
      "limits": [
        {
          "counter": "create_reminder_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 Reminders MCP Server, so you can run agents against it safely.

FAQ

Questions about create_reminder_list

What does the create_reminder_list tool do? +

Create a new reminder list in macOS Reminders app. It is categorised as a Write tool in the 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 create_reminder_list? +

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

What risk level is create_reminder_list? +

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

Can I rate-limit create_reminder_list? +

Yes. Add a rate_limit block to the create_reminder_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 create_reminder_list completely? +

Set action: deny in the PolicyLayer policy for create_reminder_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 create_reminder_list? +

create_reminder_list is provided by the Reminders MCP Server MCP server (jagadeesh52423/remainders-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.