discord-mcp: Instructions file for Claude Code

CLAUDE.md

discord-mcp CLAUDE.md is an instructions file for Claude Code from yone-k/discord-mcp. It costs 1,925 tokens per session, scanned A, original, MIT.

A set of Japanese-language instructions for developing a Discord MCP server, which lets AI clients use Discord through the Model Context Protocol. It describes the project, technology choices, architecture, folder layout, testing, and security practices.

In plain words
What is it for?
Use it when developing or reviewing the yone-k/discord-mcp project, especially its TypeScript code, Discord integration, MCP tools, tests, and bot-token handling.
Why use it?
It gives contributors a shared description of how the project is organised and how it should be changed. This reduces uncertainty when working in an unfamiliar codebase.

Instructions file for Claude Code

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

This is yone-k/discord-mcp's own configuration. It tells Claude Code how to work on discord-mcp 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 discord-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to yone-k/discord-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.

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

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 1,925 This file is loaded in full into every session.
When invoked 1,925 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 $0.01925 $0.01925
Opus 5 $0.00962 $0.00962
Sonnet 5 $0.00385 $0.00385
Haiku 4.5 $0.00193 $0.00193

Measured 9d ago against content hash ba4de2d770c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

discord-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 9d 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 · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Japanese <character_code>UTF-8</character_code>

プロジェクト概要

Discord APIとの統合機能を提供するMCP (Model Context Protocol) サーバーの実装です。MCPプロトコルを通じてClaude DesktopなどのAIクライアントがDiscord APIを安全に利用できるようにします。

技術スタック

  • 言語: TypeScript
  • フレームワーク: MCP SDK (@modelcontextprotocol/sdk)
  • バリデーション: Zod
  • コンテナ: Docker
  • 実行環境: Node.js 22+
  • テストフレームワーク: Vitest
  • 主要ライブラリ: MCP SDK, axios (HTTP クライアント)

アーキテクチャ

設計方針

MCPプロトコル準拠: Model Context Protocolの仕様に完全準拠し、標準的なMCPクライアントとの互換性を保つ ドメイン分離: Discord API機能、MCPサーバーコア、ツール実装を明確に分離 型安全性: TypeScriptとZodを活用した厳密な型チェック セキュリティファースト: Discord Bot トークンの安全な管理と適切な権限制御

ディレクトリ構造

discord-mcp/
├── src/
│   ├── core/              # MCPサーバーのコア機能
│   │   └── tool-handler.ts    # 共通ツールハンドラー
│   ├── discord/           # Discord API統合機能
│   ├── tools/             # MCPツール実装(ドメイン別整理)
│   │   ├── registry.ts         # ツールレジストリ
│   │   ├── servers/           # サーバー関連ツール
│   │   ├── channels/          # チャンネル・メッセージ関連ツール
│   │   ├── users/             # ユーザー関連ツール
│   │   ├── roles/             # ロール関連ツール
│   │   └── docs/              # ツール固有ドキュメント
│   ├── types/             # 型定義
│   ├── utils/             # ユーティリティ関数
│   └── index.ts           # エントリーポイント(簡素化済み)
├── docs/                  # プロジェクト全体のドキュメント
│   ├── architecture/      # アーキテクチャ設計書
│   ├── api/               # Discord API仕様書
│   └── deployment/        # デプロイ手順
└── CLAUDE.md              # このファイル

ツール管理アーキテクチャ

ツールレジストリパターン: 各ツールファイルにMCP定義を含め、registry.tsで一元管理 動的ツール登録: index.tsはレジストリから動的にツール一覧を取得 共通ハンドラー: ToolHandlerクラスがDiscordクライアント初期化とエラーハンドリングを統一

開発ガイドライン

コーディング規約

  • ファイル命名: kebab-case (例: discord-client.ts)
  • クラス命名: PascalCase (例: DiscordMCPServer)
  • 関数・変数命名: camelCase (例: setupToolHandlers)
  • 定数命名: UPPER_SNAKE_CASE (例: DEFAULT_TIMEOUT)
  • 型命名: PascalCase with suffix (例: DiscordMessageType)

開発フロー

  • Git フロー: GitHub Flow (main ブランチからfeatureブランチを作成)
  • レビュープロセス: Pull Request必須、1名以上のレビュー
  • テスト戦略: ユニットテスト + 統合テスト (Jest使用予定)
  • ツール追加時: 新しいMCPツールを追加した場合は、必ずTOOLLIST.md(日本語版・英語版)を更新

Read the full file on GitHub · 171 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. 9d ago First seen · 171 lines · 1,925 tokens per session scan A ba4de2d770c4

Subscribe to this mod's changes

discord-mcp CLAUDE.md is an instructions file published in the GitHub repository yone-k/discord-mcp (0 stars, last pushed 1y ago), licensed MIT. It adds 1,925 tokens to every session, about $0.0096 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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