What is mcp-server-apple-events GEMINI.md?

Instructions for an MCP server that connects AI assistants on macOS to Apple Reminders and Apple Calendar. MCP is a standard way for an AI assistant to call tools provided by another program.

It helps assistants build and test features for reading, creating, updating, and deleting reminders and calendar events, managing lists, and handling macOS permissions.

It explains how the server is divided into communication, task logic, validation, and the native macOS connection, so changes fit the existing design.

How FradSer/mcp-server-apple-events configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to FradSer/mcp-server-apple-events. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/FradSer/mcp-server-apple-events/main/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/FradSer/mcp-server-apple-events

Made for: Gemini CLI.

Wrote this? Show the measurements

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README.md

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Per session 1,143 This file is loaded in full into every session.

When invoked 1,143 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01143	$0.01143
Opus 5.5	$0.00457	$0.00457
Sonnet 5.5	$0.00229	$0.00229
Haiku 4.5	$0.00114	$0.00114

Measured 22d ago against content hash 9bc5d31575dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-server-apple-events GEMINI.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 22d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

apple-calendar-mcp GEMINI.md — 100% identical, 2 lines differ

GEMINI.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Apple Events MCP Server

Project Overview

This project is a Model Context Protocol (MCP) server that provides native integration with Apple Reminders and Apple Calendar on macOS. It allows AI agents to read, create, update, and delete reminders and calendar events, manage lists, and organize tasks using natural language.

Key Technologies:

Runtime: Node.js (TypeScript)
Native Integration: Swift (EventKit)
Protocol: Model Context Protocol (MCP) SDK
Validation: Zod
Testing: Jest
Linting/Formatting: Biome

Architecture

The project follows a 4-layer Clean Architecture:

Server Layer (src/server/): Handles MCP protocol communication and request routing.
Handlers Layer (src/tools/handlers/): Business logic for specific tools (reminders, calendars).
Utils/Repository Layer (src/utils/): Helper functions, validation, data access patterns, and eventCli.ts — the wrapper around the vendored event CLI.
Native Bridge: The vendored event Swift CLI (built from vendor/event submodule into bin/event) directly interacts with the macOS EventKit API and handles permissions.

Building and Running

Prerequisites

Node.js 18+
macOS (for EventKit integration)
Xcode Command Line Tools (for Swift compilation)
pnpm

Commands

Install Dependencies: pnpm install (also builds bin/event via postinstall on macOS)
Build (TS & event CLI): pnpm build (Required before starting)
Build event CLI Only: pnpm build:event
Start Server: pnpm start (Runs via stdio)
Development Mode: pnpm dev
Run Tests: pnpm test
Lint & Format: pnpm lint (Uses Biome)

Available Tools

The server exposes 5 main tools:

reminders_tasks: CRUD operations for individual reminders (create, read, update, delete). Supports filtering by list, due date, etc.
reminders_lists: Manage reminder lists (create, read, update, delete).
calendar_events: CRUD operations for calendar events. Supports time blocking and scheduling.
calendar_calendars: Read-only access to available calendars.
reminders_subtasks: Manages subtasks/checklists within reminders (create, read, update, delete, toggle, reorder).

Read the full file on GitHub · 81 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

22d ago Changed · +7 tokens per session 9bc5d31575dd
2mo ago First seen · 81 lines · 1,136 tokens per session scan A cb76befa95f0

Subscribe to this mod's changes

mcp-server-apple-events GEMINI.md is an instructions file published in the GitHub repository FradSer/mcp-server-apple-events (231 stars, last pushed 10d ago), licensed MIT. It adds 1,143 tokens to every session, about $0.0046 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Backend and APIs Building agents calendar eventkit macos mcp-server model-context-protocol reminders

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mcp-server-apple-events: Instructions file for Gemini CLI