First running version

reference_impl/mcplets/internal/crm/index.ts

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+/**
+ * CRM MCPlet (内部システム)
+ * pool: なし (pool-less) | mcpletType: read | visibility: [model]
+ */
+import { MCPletServer } from '../../mcplet-server.js';
+
+const MOCK_SERVICE_URL = process.env.MOCK_SERVICE_URL ?? 'http://localhost:5100';
+
+const server = new MCPletServer('crm-mcplet');
+
+server.registerTool({
+  name: 'query_crm',
+  description: 'CRMシステムから顧客・予約情報を取得します。キャンセル傾向分析や顧客リスト取得に使用します。',
+  inputSchema: {
+    type: 'object',
+    properties: {
+      entity: {
+        type: 'string',
+        enum: ['customers', 'reservations'],
+        description: '取得するエンティティ種別',
+      },
+      filter: {
+        type: 'string',
+        description: 'フィルタ条件 (例: rain_cancel_tendency, date=YYYY-MM-DD)',
+      },
+    },
+    required: ['entity'],
+  },
+  mcpletType: 'read',
+  visibility: ['model'],
+  handler: async (args) => {
+    const entity = args['entity'] as string;
+    const filter = args['filter'] as string | undefined;
+
+    if (entity === 'customers') {
+      const qs = filter ? `?filter=${encodeURIComponent(filter)}` : '';
+      const res = await fetch(`${MOCK_SERVICE_URL}/crm/customers${qs}`);
+      if (!res.ok) throw new Error(`CRM API returned ${res.status}`);
+      return res.json();
+    }
+
+    if (entity === 'reservations') {
+      // filter may be "date=2026-03-28"
+      const dateMatch = filter?.match(/date=(\d{4}-\d{2}-\d{2})/);
+      const date = dateMatch ? dateMatch[1] : '';
+      const qs = date ? `?date=${date}` : '';
+      const res = await fetch(`${MOCK_SERVICE_URL}/crm/reservations${qs}`);
+      if (!res.ok) throw new Error(`CRM API returned ${res.status}`);
+      return res.json();
+    }
+
+    throw new Error(`Unknown CRM entity: ${entity}`);
+  },
+});
+
+await server.listen();