Borrowing it
Nothing to install: this file belongs to whichguy/gas_mcp. 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/whichguy/gas_mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/whichguy/gas_mcpWrote 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/whichguy/gas_mcp/claude-md)<a href="https://agentmods.dev/instructions/whichguy/gas_mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/whichguy/gas_mcp/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/whichguy/gas_mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/whichguy/gas_mcp/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 | $0.03387 | $0.03387 |
| Opus 5.5 | $0.01355 | $0.01355 |
| Sonnet 5.5 | $0.00677 | $0.00677 |
| Haiku 4.5 | $0.00339 | $0.00339 |
Grade A, and why
gas_mcp 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 — 248 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.
Build & Run Commands
Core Development
npm install # Install dependencies
npm run build # Production build (TypeScript → JavaScript)
npm run build:dev # Development build with source maps
npm run dev # Watch mode with auto-rebuild
npm start # Build and start MCP server
npm run clean # Clean dist/ directory
Testing
| Category | Command | Purpose |
|---|---|---|
| Core | npm test |
System tests (30s timeout) |
npm run test:unit |
Unit tests (mocked) | |
npm run test:integration |
Real GAS API (auth required, 5min) | |
npm run test:system |
MCP protocol tests | |
npm run test:all |
Unit + system combined | |
| Quality | npm run test:security |
Security & validation |
npm run test:performance |
Performance benchmarks (60s) | |
npm run test:verification |
API schema compliance | |
| Verify | npm run test:git/auth/files/project/execution/server |
Domain-specific verification |
| Debug | DEBUG=mcp:* npm test |
Enable debug logging |
npx mocha test/path/file.test.ts --timeout 30000 |
Single test file |
Code Quality
npm run lint # ESLint with auto-fix
npm run bundle:analyze # Analyze bundle size
npm run test:production # Production readiness report
npm run test:all-verify # Run all verification tests
Development Workflow
Critical: After making changes to MCP server code or CommonJS modules:
- Build:
npm run build - Restart Claude Code - Required to pick up changes
- Test the changes
Test Project: Use scriptId 1Y72rigcMUAwRd7bwl3CR57O6ENo5sKTn0xAl2C4HoZys75N5utGfkCUG for testing
Architecture Overview
MCP server: AI ↔ GAS → 52 tools for create/manage/execute GAS projects
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 · 248 lines · 3,387 tokens per session scan A ca51932a50bf
gas_mcp CLAUDE.md is an instructions file published in the GitHub repository whichguy/gas_mcp (6 stars, last pushed 4mo ago), licensed MIT. It adds 3,387 tokens to every session, about $0.0135 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.
gas_mcp CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| gas_mcp CLAUDE.mdwhichguy/gas_mcp | Instructions file | 6 | 4mo ago | MIT | A | 3,387 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
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| 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 |