noteplan_eventkit · Noteplan MCP: Risk & Policy

WHAT IT DOES

What noteplan_eventkit does on Noteplan

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

WHY IT NEEDS A POLICY

Why noteplan_eventkit needs a policy

This tool manages Calendar and Reminders on macOS, which implies creating, updating, and potentially deleting calendar events and reminders. The description is truncated, reducing confidence.

From the tool's definition macOS Calendar and Reminders operations

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

noteplan_eventkit Rate-limited

noteplan_eventkit 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": {
    "noteplan_eventkit": {
      "limits": [
        {
          "counter": "noteplan_eventkit_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 Noteplan, so you can run agents against it safely.

FAQ

Questions about noteplan_eventkit

What does the noteplan_eventkit tool do? +

macOS Calendar and Reminders operations.\n\nCalendar actions (source=. It is categorised as a Write tool in the Noteplan MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on noteplan_eventkit? +

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

What risk level is noteplan_eventkit? +

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

Can I rate-limit noteplan_eventkit? +

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

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

noteplan_eventkit is provided by the Noteplan MCP server (@noteplanco/noteplan-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.