mcp-apps-todo: Instructions file for Claude Code

CLAUDE.md

mcp-apps-todo CLAUDE.md is an instructions file for Claude Code from Stella2211/mcp-apps-todo. It costs 967 tokens per session, scanned A, original, MIT.

Project instructions for an MCP todo application that lets Claude Desktop, Claude Code, and VS Code manage tasks through an embedded conversation interface. It describes a React application using Cloudflare Workers and a SQLite database.

In plain words
What is it for?
Use them when developing, testing, building, or deploying the todo app, especially its MCP server, embedded UI, database code, routes, and Cloudflare Worker setup.
Why use it?
They give developers the project's architecture, technology choices, directory layout, and commands, reducing uncertainty when changing the app. The instructions also note that authentication and authorization are not implemented.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is Stella2211/mcp-apps-todo's own configuration. It tells Claude Code how to work on mcp-apps-todo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-apps-todo configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Stella2211/mcp-apps-todo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Stella2211/mcp-apps-todo/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Stella2211/mcp-apps-todo

Made for: Claude Code.

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Per session 967 This file is loaded in full into every session.
When invoked 967 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00967 $0.00967
Opus 5 $0.00483 $0.00483
Sonnet 5 $0.00193 $0.00193
Haiku 4.5 $0.00097 $0.00097

Measured 8d ago against content hash d79d8a9f626e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

mcp-apps-todo 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.

CLAUDE.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

MCP Apps を活用した Todo アプリケーション。Claude Desktop / Claude Code / VS Code から MCP 経由で Todo を操作でき、会話内にインタラクティブな UI が表示される。

プロジェクト概要

  • MCP Apps Todo — MCP (Model Context Protocol) のリモートサーバーとして動作し、MCP Apps 拡張により会話内に埋め込みUIを提供する Todo アプリ
  • 学習・練習用リポジトリ。認証・認可は未実装

技術スタック

  • フレームワーク: React 19 + TanStack Start (SSR)
  • MCP: @modelcontextprotocol/sdk + @modelcontextprotocol/ext-apps
  • DB: Cloudflare D1 (SQLite) + Drizzle ORM
  • ホスティング: Cloudflare Workers
  • ビルド: Vite 7 + Bun
  • UI: Tailwind CSS v4 + shadcn/ui

ディレクトリ構成

mcp/           → MCP サーバー (ツール定義・ハンドラー)
mcp-ui/        → MCP 埋め込み UI (単一 HTML にビルド)
src/server.ts  → Cloudflare Worker エントリポイント (/mcp と Web UI のルーティング)
src/db/        → Drizzle ORM スキーマ・DB 初期化
src/lib/       → DB 操作関数・TanStack Server Functions
src/routes/    → ファイルベースルーティング
src/components/→ React コンポーネント (TodoList, TodoItem, AddTodo, Header)
drizzle/       → DB マイグレーション

開発コマンド

bun install                # 依存関係インストール
bun run dev                # 開発サーバー起動 (localhost:3000)
bun run build              # MCP UI + メインアプリのビルド
bun run deploy             # Cloudflare Workers にデプロイ
bun run test               # テスト実行
bunx wrangler d1 migrations apply mcp-todo-db --local   # ローカル DB マイグレーション

MCP エンドポイント

  • ローカル: http://localhost:3000/mcp
  • 本番: https://mcp-apps-todo.starry-night.dev/mcp
  • トランスポート: Streamable HTTP (セッションレス)

MCP ツール一覧

ツール 説明
list_todos Todo 一覧取得 (username, status?)
add_todo Todo 追加 (username, title, description?)
update_todo Todo 更新 (id, username, title?, description?)
complete_todo 完了/未完了トグル (id, username)
delete_todo Todo 削除 (id, username)

全ツールに _meta.ui.resourceUri が付与され、MCP Apps 対応クライアントで UI が表示される。

アーキテクチャの要点

  • src/server.ts でパス /mcp を MCP ハンドラーに、それ以外を TanStack Start に振り分け
  • MCP サーバーはリクエストごとにインスタンスを生成 (セッションレス)
  • mcp-ui/vite-plugin-singlefile で単一 HTML にビルドし、?raw で MCP サーバーに埋め込み
  • MCP UI は @modelcontextprotocol/ext-apps/react-with-depsuseApp() で MCP クライアントと通信
  • Web UI は useOptimistic() によるオプティミスティック更新で即時反映

Read the full file on GitHub · 74 lines

Changes

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.

  1. 8d ago First seen · 74 lines · 967 tokens per session scan A d79d8a9f626e

Subscribe to this mod's changes

mcp-apps-todo CLAUDE.md is an instructions file published in the GitHub repository Stella2211/mcp-apps-todo (0 stars, last pushed 6mo ago), licensed MIT. It adds 967 tokens to every session, about $0.0048 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 2026-08-31.

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