What is google-calendar-mcp-app CLAUDE.md?

Repository instructions for a TypeScript server that lets AI assistants work with Google Calendar through the Model Context Protocol, a standard way for assistants to use external tools.

Use them when installing dependencies, building the server, running type checks, executing unit or integration tests, and configuring Google OAuth login.

They give developers the commands and setup details needed to build, check, and test the server, including authentication requirements.

google-calendar-mcp-app CLAUDE.md — Instructions file for coding agents by QuantGeekDev: Repository instructions for a TypeScript server tha

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add instructions/quantgeekdev/google-calendar-mcp-app/claude-md

Clone the repo

git clone --depth 1 https://github.com/QuantGeekDev/google-calendar-mcp-app

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/quantgeekdev/google-calendar-mcp-app/claude-md.svg)](https://agentmods.dev/instructions/quantgeekdev/google-calendar-mcp-app/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/quantgeekdev/google-calendar-mcp-app/claude-md"><img src="https://agentmods.dev/badge/instructions/quantgeekdev/google-calendar-mcp-app/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 2,189 This file is loaded in full into every session.

When invoked 2,189 The same file — it is already loaded in full.

Security scan A 0 findings. Scan, not verified.

Origin 100% copy Near-identical to another mod 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	$0.02189	$0.02189
Opus 5	$0.01094	$0.01094
Sonnet 5	$0.00438	$0.00438
Haiku 4.5	$0.00219	$0.00219

Measured 5d ago against content hash 2210aea7e5bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

google-calendar-mcp-app CLAUDE.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 5d 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

This is a copy

100% identical to google-calendar-mcp CLAUDE.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 237 lines

How it starts

The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Overview

Google Calendar MCP Server - A Model Context Protocol (MCP) server providing Google Calendar integration for AI assistants. Built with TypeScript, supports both stdio and HTTP transports, with OAuth 2.0 authentication.

Development Commands

npm install              # Install dependencies
npm run build            # Build with esbuild (outputs to build/)
npm run dev              # Show interactive development menu with all commands
npm run lint             # TypeScript type checking (no emit)

# Testing - Quick Start
npm test                             # Unit tests only (no auth required)
npm run test:watch                   # Unit tests in watch mode
npm run dev test:integration:direct  # Direct integration tests (recommended for dev)
npm run dev coverage                 # Generate test coverage report

# Testing - Full Suite (rarely needed, incurs LLM usage costs)
npm run dev test:integration:claude  # Claude + MCP integration (requires CLAUDE_API_KEY)
npm run dev test:integration:openai  # OpenAI + MCP integration (requires OPENAI_API_KEY)
npm run dev test:integration:all     # All integration tests (requires all API keys)

# Authentication
npm run auth                # Authenticate main account
npm run dev auth:test       # Authenticate test account (for integration tests)
npm run dev account:status  # Check authentication status

# Running the server
npm start                        # Start with stdio transport
npm run dev http                 # Start HTTP server on localhost:3000
npm run dev http:public          # HTTP server accessible from any host

Architecture

Handler Architecture

All MCP tools follow a consistent handler pattern:

Handler Registration: Handlers are auto-registered via src/tools/registry.ts
Base Class: All handlers extend BaseToolHandler from src/handlers/core/BaseToolHandler.ts
Schema Definition: Input schemas defined in src/tools/registry.ts using Zod
Handler Implementation: Core logic in src/handlers/core/ directory

Read the full file on GitHub · 237 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.

5d ago First seen · 237 lines · 2,189 tokens per session scan A 2210aea7e5bb

Subscribe to this mod's changes

google-calendar-mcp-app CLAUDE.md is an instructions file published in the GitHub repository QuantGeekDev/google-calendar-mcp-app (3 stars, last pushed 5mo ago), licensed MIT. It adds 2,189 tokens to every session, about $0.0109 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to google-calendar-mcp CLAUDE.md, differing in 0 lines, and is treated as a copy.

Backend and APIs

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

google-calendar-mcp-app CLAUDE.md