Borrowing it
Nothing to install: this file belongs to ruchernchong/mcp-server-google-analytics. 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/ruchernchong/mcp-server-google-analytics/main/CLAUDE.mdgit clone --depth 1 https://github.com/ruchernchong/mcp-server-google-analyticsWrote 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/ruchernchong/mcp-server-google-analytics/claude-md)<a href="https://agentmods.dev/instructions/ruchernchong/mcp-server-google-analytics/claude-md"><img src="https://agentmods.dev/badge/instructions/ruchernchong/mcp-server-google-analytics/claude-md.svg" alt="Measured on agentmods" 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 | $0.00663 | $0.00663 |
| Opus 5 | $0.00331 | $0.00331 |
| Sonnet 5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
mcp-server-google-analytics 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 8d 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 — 81 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.
Essential Commands
Build and Development
pnpm build- Compile TypeScript to JavaScript (output indist/)pnpm dev- Run the server in development mode with ts-nodepnpm start- Start the compiled server fromdist/index.js
Testing
pnpm test- Run Vitest tests from thetests/directory- Tests are configured with Vitest and target Node.js environment
Code Quality
pnpm lint- Run Biome linter onsrc/directorypnpm format- Format code with Biome (writes changes)pnpm check- Run Biome check and apply fixes automatically
Project Architecture
Core Structure
This is a Model Context Protocol (MCP) server that provides Google Analytics 4 data access. The architecture consists of:
Single Entry Point: src/index.ts contains the entire server implementation using:
@modelcontextprotocol/sdkfor MCP server functionality@google-analytics/datafor GA4 API accessgoogleapisfor Google Cloud authentication
Server Pattern: The server uses:
StdioServerTransportfor communication- Request handlers for
ListToolsRequestSchemaandCallToolRequestSchema - Environment variable validation on startup
Tool Implementation
The server exposes 5 main tools through the MCP protocol:
- runReport - Generic analytics report runner with custom dimensions and metrics
- getPageViews - Page view metrics with optional dimensions
- getActiveUsers - Active and new user counts over time
- getEvents - Event tracking with optional event name filtering
- getUserBehavior - Session duration, bounce rate, and sessions per user
Each tool follows the pattern:
- Date range validation (YYYY-MM-DD format)
- Google Analytics API call via
analyticsDataClient.runReport() - JSON response formatting
- Comprehensive error handling with
McpError
Environment Requirements
The server requires these environment variables:
GOOGLE_CLIENT_EMAIL- Service account emailGOOGLE_PRIVATE_KEY- Service account private keyGA_PROPERTY_ID- Google Analytics 4 property ID
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.
- 8d ago First seen · 81 lines · 663 tokens per session scan A 1ffa6118d460
mcp-server-google-analytics CLAUDE.md is an instructions file published in the GitHub repository ruchernchong/mcp-server-google-analytics (70 stars, last pushed 12mo ago), licensed MIT. It adds 663 tokens to every session, about $0.0033 per session on Opus 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.
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