MCP TypeScript Simple Template
MCP TypeScript シンプルテンプレート
モデルコンテキストプロトコル(MCP)サーバーを構築するためのシンプルなTypeScriptテンプレート。このプロジェクトは、AIシステムに統合できるカスタムMCPツールを作成するための基盤を提供します。
概要
このテンプレートは、サンプルのBMI計算ツールを備えた基本的なMCPサーバーを実装します。以下の操作方法を示します。
TypeScriptでMCPサーバーをセットアップする
Zodを使用した入力検証を備えたMCPツールの定義と実装
通信のためにサーバーを標準I/Oに接続する
Related MCP server: MCP Server Python Template
前提条件
Node.js (v20以上を推奨)
npmまたはyarn
インストール
このリポジトリをクローンする
依存関係をインストールします:
npm installプロジェクト構造
index.ts- サンプルツールを使用したメインサーバーの実装package.json- プロジェクトの依存関係とスクリプトtsconfig.json- TypeScript 設定
使用法
構築と実行
サーバーをビルドして起動します。
npm startこれにより、TypeScript コードがコンパイルされ、MCP サーバーが起動します。
発達
開発の場合、次のことが可能です。
index.tsを修正して独自のツールを追加するビルド コマンドを実行してコンパイルします。
npm run buildカスタムツールの作成
新しいツールを作成するには、 index.tsの次のパターンに従います。
server.tool(
"your-tool-name",
{
// Define input schema using Zod
paramName: z.string(),
// Add more parameters as needed
},
async ({ paramName }) => ({
content: [{
type: "text",
text: "Your tool's response"
}]
})
);依存関係
@modelcontextprotocol/sdk- コア MCP SDKzod- スキーマ検証dotenv- 環境変数の管理typescript- TypeScript コンパイラ
ライセンス
ISC
貢献
貢献を歓迎します!お気軽にプルリクエストを送信してください。
Available Tools
2 toolscalculate-bmiD
| Name | Required | Description | Default |
|---|---|---|---|
| heightM | Yes | ||
| weightKg | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Tool has no description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool has no description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Tool has no description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Tool has no description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Tool has no description.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Tool has no description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
echoD
| Name | Required | Description | Default |
|---|---|---|---|
| text | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Tool has no description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool has no description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Tool has no description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Tool has no description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Tool has no description.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Tool has no description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
2 tool updates
v1.0.0- First observed
calculate-bmi - First observed
echo
TDQS
Scored across 2 tools
The two tools have clearly distinct purposes: calculate_bmi is for health-related calculations, while echo is for text repetition. There is no overlap or ambiguity between them, making it easy for an agent to choose the right tool.
The naming is inconsistent: calculate_bmi uses kebab-case, while echo uses lowercase without a clear pattern. There is no consistent verb_noun convention, and the styles are mixed, though the names are still readable.
With only 2 tools, the server feels too thin for a general-purpose template. It lacks depth and variety, suggesting an incomplete or minimal implementation that doesn't fully cover a meaningful domain.
The server is severely incomplete; it only offers two unrelated tools with no descriptions, making it impossible to assess domain coverage. There are obvious gaps, and it doesn't support any coherent workflow or lifecycle.
Maintenance
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