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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();

reference_impl/mcplets/internal/erp/index.ts

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+/**
+ * ERP 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('erp-mcplet');
+
+server.registerTool({
+  name: 'query_erp',
+  description: 'ERPシステムから在庫・発注情報を取得します。商品在庫確認や調達状況の把握に使用します。',
+  inputSchema: {
+    type: 'object',
+    properties: {
+      entity: {
+        type: 'string',
+        enum: ['inventory', 'orders'],
+        description: '取得するエンティティ種別',
+      },
+      item: {
+        type: 'string',
+        description: '商品カテゴリ (例: dessert, drink)',
+      },
+    },
+    required: ['entity'],
+  },
+  mcpletType: 'read',
+  visibility: ['model'],
+  handler: async (args) => {
+    const entity = args['entity'] as string;
+    const item = args['item'] as string | undefined;
+
+    if (entity === 'inventory') {
+      const qs = item ? `?item=${encodeURIComponent(item)}` : '';
+      const res = await fetch(`${MOCK_SERVICE_URL}/erp/inventory${qs}`);
+      if (!res.ok) throw new Error(`ERP API returned ${res.status}`);
+      return res.json();
+    }
+
+    return { entity, message: 'Mock ERP orders data' };
+  },
+});
+
+await server.listen();

reference_impl/mcplets/internal/hr/index.ts

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+/**
+ * HR MCPlet (内部システム)
+ * pool: なし (pool-less) | mcpletType: read | visibility: [model]
+ */
+import { MCPletServer } from '../../mcplet-server.js';
+
+const server = new MCPletServer('hr-mcplet');
+
+server.registerTool({
+  name: 'query_hr',
+  description: 'HRシステムからスタッフ情報・シフトを取得します。施策実行に必要な人員確認に使用します。',
+  inputSchema: {
+    type: 'object',
+    properties: {
+      entity: {
+        type: 'string',
+        enum: ['staff', 'shifts'],
+        description: '取得するエンティティ種別',
+      },
+      date: {
+        type: 'string',
+        description: '対象日付 (YYYY-MM-DD形式)',
+      },
+    },
+    required: ['entity'],
+  },
+  mcpletType: 'read',
+  visibility: ['model'],
+  handler: async (args) => {
+    const entity = args['entity'] as string;
+    const date = (args['date'] as string | undefined) ?? new Date().toISOString().slice(0, 10);
+
+    if (entity === 'staff') {
+      return {
+        staff: [
+          { staffId: 'S001', name: '中村 りか', role: 'manager', available: true },
+          { staffId: 'S002', name: '小林 けん', role: 'waiter', available: true },
+          { staffId: 'S003', name: '加藤 みゆ', role: 'waiter', available: false },
+        ],
+      };
+    }
+
+    if (entity === 'shifts') {
+      return {
+        date,
+        shifts: [
+          { staffId: 'S001', startTime: '17:00', endTime: '23:00' },
+          { staffId: 'S002', startTime: '17:00', endTime: '22:00' },
+        ],
+      };
+    }
+
+    throw new Error(`Unknown HR entity: ${entity}`);
+  },
+});
+
+await server.listen();