Borrowing it
Nothing to install: this file belongs to d-kimuson/esa-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/d-kimuson/esa-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/d-kimuson/esa-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/d-kimuson/esa-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/d-kimuson/esa-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/d-kimuson/esa-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/d-kimuson/esa-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/d-kimuson/esa-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 | $0.00667 | $0.00667 |
| Opus 5 | $0.00333 | $0.00333 |
| Sonnet 5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00067 | $0.00067 |
Grade A, and why
esa-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 10d 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.
What it actually says
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
開発コマンド
- ビルド:
pnpm build- orvalによるコード生成 + esbuildによるバンドルを実行 - 開発モード:
pnpm dev- TypeScriptのwatch mode + OpenAPIのwatch modeを開始 - テスト:
pnpm test- vitestのテストスイートを実行 - リント:
pnpm lint- redocly lint + prettierチェックを実行 - 型チェック:
pnpm typecheck- TypeScriptの型チェックを実行 - コード整形:
pnpm fix- prettierで自動フォーマット - MCP Inspector:
pnpm inspect- ビルド後にMCPインスペクターを起動（デバッグ用）
アーキテクチャ概要
このプロジェクトは esa.io API を MCP (Model Context Protocol) サーバーとして提供するものです。
主要コンポーネント
- エントリーポイント:
src/index.ts- stdio transportでMCPサーバーを作成・起動 - サーバー定義:
src/server.ts- 全MCPツールとその実装を定義 - APIクライアント:
src/api.ts- esa.io API呼び出しとエラーハンドリング、レスポンス処理 - 生成されたAPI:
src/generated/esa-api/- orvalでOpenAPI仕様から自動生成
提供するMCPツール
get_search_query_document- 検索クエリのドキュメントを返すsearch_esa_posts- ページネーションとフィルタリングでesa記事を検索read_esa_post/read_esa_multiple_posts- 記事コンテンツを取得create_esa_post/update_esa_post/delete_esa_post- CRUD操作
コード生成ワークフロー
orvalを使用してOpenAPI仕様からTypeScript APIクライアントコードを生成：
- OpenAPI仕様は
openapi-spec/ディレクトリに格納 - orval設定は
orval.config.ts - 生成されたコードは
src/generated/esa-api/に配置 pnpm build:orvalでAPIクライアントを再生成
環境変数
ESA_API_KEY- esa.io API認証に必要DEFAULT_ESA_TEAM- esa操作のデフォルトチーム名
レスポンス形式
全ツールレスポンスは formatTool ユーティリティを通じてトークン効率化のためYAML形式を使用。
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.
- 10d ago First seen · 48 lines · 667 tokens per session scan A 7ce731a51230
esa-mcp-server CLAUDE.md is an instructions file published in the GitHub repository d-kimuson/esa-mcp-server (37 stars, last pushed 10mo ago), licensed MIT. It adds 667 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.
Other instructions, from other repositories
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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.
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.