Borrowing it
Nothing to install: this file belongs to wanthigh/google-calendar-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/wanthigh/google-calendar-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/wanthigh/google-calendar-mcp-serverWrote 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.
[](https://agentmods.dev/instructions/wanthigh/google-calendar-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/wanthigh/google-calendar-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/wanthigh/google-calendar-mcp-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/wanthigh/google-calendar-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/wanthigh/google-calendar-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02495 | $0.02495 |
| Opus 5.5 | $0.00998 | $0.00998 |
| Sonnet 5.5 | $0.00499 | $0.00499 |
| Haiku 4.5 | $0.00249 | $0.00249 |
Grade A, and why
google-calendar-mcp-server 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 2mo 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.
How it starts
The opening of the file, as written. The whole thing — 315 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Calendar MCP Server 开发指导
项目概述
这是一个基于 Model Context Protocol (MCP) 的 Google Calendar 集成服务,提供了完整的日历事件管理功能。项目使用 TypeScript 开发,通过 MCP SDK 与 Claude 集成,支持单一和批量操作,并具备企业级的错误处理和重试机制。
核心架构
技术栈
- TypeScript: ES模块 (ESNext)
- MCP SDK: @modelcontextprotocol/sdk v0.4.0+
- Google APIs: googleapis v126.0.1+
- 验证库: Zod v3.22.4+
- 运行时: Node.js 18+
项目结构
google_chrome_calendar_server/
├── src/
│ ├── index.ts # MCP Server 主入口
│ ├── services/
│ │ ├── auth.ts # OAuth2 认证服务
│ │ ├── calendar.ts # Google Calendar API 封装
│ │ └── config.ts # 配置管理
│ ├── tools/
│ │ ├── create-event.ts # 创建事件工具
│ │ ├── update-event.ts # 更新事件工具
│ │ ├── delete-event.ts # 删除事件工具
│ │ ├── list-events.ts # 列表事件工具
│ │ ├── search-events.ts # 搜索事件工具
│ │ ├── batch-create-events.ts # 批量创建
│ │ ├── batch-update-events.ts # 批量更新
│ │ └── batch-delete-events.ts # 批量删除
│ ├── utils/
│ │ ├── validation.ts # 输入验证
│ │ ├── error.ts # 错误处理
│ │ └── retry.ts # 重试机制
│ └── types/
│ └── calendar.ts # 类型定义
├── config/
│ ├── config.json # 应用配置
│ ├── credentials.json # Google OAuth2 凭证
│ └── token.json # OAuth2 令牌(自动生成)
└── dist/ # 编译输出目录
关键实现细节
1. Google Calendar API 特性
更新事件的重要注意事项
Google Calendar API 在更新事件时要求提供完整的事件数据,而不是仅提供更改的字段。必须先获取现有事件,然后合并更新:
async updateEvent(input: UpdateEventInput): Promise<CalendarEvent> {
// 先获取现有事件数据 - 这是关键步骤!
const existingEvent = await this.calendar.events.get({
calendarId: this.configManager.getDefaultCalendarId(),
eventId: input.eventId,
});
// 保留所有现有数据,仅更新提供的字段
const updateData = {
summary: existingEvent.data.summary,
start: existingEvent.data.start,
end: existingEvent.data.end,
// ... 其他必需字段
};
// 应用更新
if (input.summary !== undefined) updateData.summary = input.summary;
// ... 更多字段更新
}
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.
- 2mo ago First seen · 315 lines · 2,495 tokens per session scan A ac4fc2fac484
google-calendar-mcp-server CLAUDE.md is an instructions file published in the GitHub repository wanthigh/google-calendar-mcp-server (1 stars, last pushed 1y ago), licensed MIT. It adds 2,495 tokens to every session, about $0.0100 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 2026-08-31.
google-calendar-mcp-server CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| google-calendar-mcp-server CLAUDE.mdwanthigh/google-calendar-mcp-server | Instructions file | 1 | 1y ago | MIT | A | 2,495 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |