add_to_reminders

Add upcoming deadlines to macOS Reminders.

SERVERSchool MCP SOURCE54yyyu/school-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/54yyyu-school-mcp/add-to-reminders.md

WHAT IT DOES

What add_to_reminders does on School MCP

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

RISK

Why add_to_reminders is rated Medium

The tool creates new data (reminder entries) in the user's macOS Reminders app. This is a Write action because it modifies application state reversibly—reminders can be deleted or edited afterward. Severity is medium because misuse would clutter the Reminders app with unwanted entries but poses no financial risk, data deletion, or arbitrary code execution.

From the tool's definition Tool explicitly performs 'Add' action to macOS Reminders, which creates new reminder entries. This is a reversible write operation that modifies the user's Reminders database.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_to_reminders safely

PolicyLayer is an MCP gateway: it sits between your AI agents and School MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_to_reminders, this is the rule to start with:

add_to_reminders Rate-limited

add_to_reminders 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": {
    "add_to_reminders": {
      "limits": [
        {
          "counter": "add_to_reminders_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect School MCP, apply this rule, and every add_to_reminders call is checked against it from then on.

FAQ

Questions about add_to_reminders

What does the add_to_reminders tool do? +

Add upcoming deadlines to macOS Reminders. It is categorised as a Write tool in the School MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_to_reminders? +

Register the School MCP server in PolicyLayer and add a rule for add_to_reminders: 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 School MCP. Nothing to install.

What risk level is add_to_reminders? +

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

Can I rate-limit add_to_reminders? +

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

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

add_to_reminders is provided by the School MCP server (54yyyu/school-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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