Borrowing it
Nothing to install: this file belongs to mikechao/metmuseum-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/mikechao/metmuseum-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/mikechao/metmuseum-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/mikechao/metmuseum-mcp/agents-md)<a href="https://agentmods.dev/instructions/mikechao/metmuseum-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/mikechao/metmuseum-mcp/agents-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/mikechao/metmuseum-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/mikechao/metmuseum-mcp/agents-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 | $0.00576 | $0.00576 |
| Opus 5.5 | $0.00230 | $0.00230 |
| Sonnet 5.5 | $0.00115 | $0.00115 |
| Haiku 4.5 | $0.00058 | $0.00058 |
Grade A, and why
metmuseum-mcp AGENTS.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 — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Project Structure & Module Organization
The codebase is a TypeScript MCP server for The Met API.
src/index.ts: entrypoint (stdio by default,--httpfor Streamable HTTP).src/MetMuseumServer.ts: server composition and registration.src/tools/: MCP tools (ListDepartmentsTool.ts,SearchMuseumObjectsTool.ts,GetObjectTool.ts).src/handlers/: request/response handlers.src/utils/andsrc/types/: shared utilities and type definitions.dist/: build output generated bypnpm run build(do not hand-edit)..github/workflows/publish.yml: release workflow for npm publish + MCPB packaging.
Build, Test, and Development Commands
pnpm install: install dependencies (useCI=true pnpm install --frozen-lockfilein CI).pnpm run build: compile TypeScript todist/and set executable bits.pnpm run lint: run ESLint with auto-fix.pnpm run lint:check: lint without file changes.pnpm run typecheck: strict TS compile checks without emitting files.pnpm run check: full local gate (lint:check+typecheck).node dist/index.js --http: smoke-test HTTP transport onhttp://localhost:3001/mcp.
Coding Style & Naming Conventions
Use the existing ESLint config (@antfu/eslint-config) and keep formatting consistent:
- 2-space indentation, semicolons, single quotes.
- ESM/TypeScript modules (
"type": "module"). - Keep tool/handler classes in
PascalCase.ts; utility modules may usekebab-case.ts(for example,server-utils.ts). - Prefer small, focused modules; place shared types in
src/types/types.ts.
Testing Guidelines
There is currently no dedicated unit-test framework in this repository. For contributions:
- Run
pnpm run checkbefore opening a PR. - Smoke-test the built server (
pnpm run buildthennode dist/index.js --http). - If adding tests, use
*.test.tsnaming and place them close to the feature or under asrc/__tests__/folder.
Commit & Pull Request Guidelines
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 · 50 lines · 576 tokens per session scan A 1886b032c663
metmuseum-mcp AGENTS.md is an instructions file published in the GitHub repository mikechao/metmuseum-mcp (35 stars, last pushed 6mo ago), licensed MIT. It adds 576 tokens to every session, about $0.0023 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.
metmuseum-mcp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| metmuseum-mcp AGENTS.mdmikechao/metmuseum-mcp | Instructions file | 35 | 6mo ago | MIT | A | 576 | Codex, OpenCode |
| 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 |