[AI-05] Solo baseline (Swiss HF) (retry 1) (retry 2) (retry 3)

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  "model": "claude-sonnet-4-20250514",
  "status": "success",
  "transport": "anthropic_api",
  "latency_ms": 62200,
  "response_text": "I'll implement the ACP agent-to-agent choreography module for buyer/seller marketplace interactions.\n\n```typescript\n// src/lib/acp-agents.ts\n// EN: Agent Communication Protocol for buyer/seller marketplace choreography\n// VI: Giao thức truyền thông tác nhân cho điều phối thị trường mua/bán\n// ES: Protocolo de comunicación de agentes para coreografía de mercado comprador/vendedor\n\nimport { z } from 'zod'\n\n// SPEC: M4.AI-05 - ACP agent choreography schema validation\n// EN: Message types and protocol definitions\n// VI: Định nghĩa loại tin nhắn và giao thức\n// ES: Definiciones de tipos de mensajes y protocolo\n\nconst MessageSchema = z.object({\n  id: z.string(),\n  type: z.enum(['inquiry', 'quote', 'negotiate', 'accept', 'reject', 'confirm']),\n  sender: z.string(),\n  receiver: z.string(),\n  payload: z.record(z.any()),\n  timestamp: z.number(),\n})\n\nconst ProductSchema = z.object({\n  id: z.string(),\n  name: z.string(),\n  category: z.string(),\n  price: z.number(),\n  quantity: z.number().optional(),\n})\n\nconst AgentStateSchema = z.object({\n  id: z.string(),\n  type: z.enum(['buyer', 'seller']),\n  status: z.enum(['idle', 'negotiating', 'busy', 'offline']),\n  preferences: z.record(z.any()),\n})\n\ntype Message = z.infer<typeof MessageSchema>\ntype Product = z.infer<typeof ProductSchema>\ntype AgentState = z.infer<typeof AgentStateSchema>\n\n// SPEC: M4.AI-05 - Core ACP implementation\n// EN: Agent Communication Protocol base class\n// VI: Lớp cơ sở giao thức truyền thông tác nhân\n// ES: Clase base del protocolo de comunicación de agentes\n\nexport class acp {\n  private messageQueue: Message[] = []\n  private agents: Map<string, AgentState> = new Map()\n\n  // EN: Register agent in the ACP network\n  // VI: Đăng ký tác nhân trong mạng ACP\n  // ES: Registrar agente en la red ACP\n  registerAgent(agent: AgentState): boolean {\n    const validation = AgentStateSchema.safeParse(agent)\n    if (!validation.success) {\n      console.error('Invalid agent state:', validation.error)\n      return false\n    }\n\n    this.agents.set(agent.id, agent)\n    return true\n  }\n\n  // EN: Send message between agents with protocol validation\n  // VI: Gửi tin nhắn giữa các tác nhân với xác thực giao thức\n  // ES: Enviar mensaje entre agentes con validación de protocolo\n  sendMessage(message: Message): boolean {\n    const validation = MessageSchema.safeParse(message)\n    if (!validation.success) {\n      console.error('Invalid message format:', validation.error)\n      return false\n    }\n\n    // EN: Check if sender and receiver exist\n    // VI: Kiểm tra người gửi và người nhận có tồn tại\n    // ES: Verificar si el remitente y receptor existen\n    if (!this.agents.has(message.sender) || !this.agents.has(message.receiver)) {\n      console.error('Agent not found in network')\n      return false\n    }\n\n    this.messageQueue.push(message)\n    return true\n  }\n\n  // EN: Get pending messages for specific agent\n  // VI: Lấy tin nhắn đang chờ cho tác nhân cụ thể\n  // ES: Obtener mensajes pendientes para agente específico\n  getMessages(agentId: string): Message[] {\n    return this.messageQueue.filter(msg => msg.receiver === agentId)\n  }\n\n  // EN: Remove processed messages from queue\n  // VI: Xóa tin nhắn đã xử lý khỏi hàng đợi\n  // ES: Eliminar mensajes procesados de la cola\n  acknowledgeMessage(messageId: string): void {\n    this.messageQueue = this.messageQueue.filter(msg => msg.id !== messageId)\n  }\n}\n\n// SPEC: M4.AI-05 - Buyer agent implementation\n// EN: Buyer agent with marketplace choreography logic\n// VI: Tác nhân mua hàng với logic điều phối thị trường\n// ES: Agente comprador con lógica de coreografía de mercado\n\nexport class buyer_agent {\n  private state: AgentState\n  private acp: acp\n  private budget: number\n  private requirements: Product[]\n\n  constructor(id: string, acpInstance: acp, budget: number = 1000) {\n    this.state = {\n      id,\n      type: 'buyer',\n      status: 'idle',\n      preferences: { budget, maxNegotiationRounds: 3 }\n    }\n    this.acp = acpInstance\n    this.budget = budget\n    this.requirements = []\n    \n    // EN: Register with ACP network\n    // VI: Đăng ký với mạng ACP\n    // ES: Registrarse en la red ACP\n    this.acp.registerAgent(this.state)\n  }\n\n  // EN: Send product inquiry to seller agent\n  // VI: Gửi yêu cầu sản phẩm đến tác nhân bán hàng\n  // ES: Enviar consulta de producto al agente vendedor\n  sendInquiry(sellerId: string, product: Partial<Product>): string {\n    const messageId = `msg_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`\n    \n    const message: Message = {\n      id: messageId,\n      type: 'inquiry',\n      sender: this.state.id,\n      receiver: sellerId,\n      payload: { \n        product,\n        budget: this.budget,\n        urgency: 'normal'\n      },\n      timestamp: Date.now()\n    }\n\n    const success = this.acp.sendMessage(message)\n    if (success) {\n      this.state.status = 'negotiating'\n      console.log(`Buyer ${this.state.id} sent inquiry for ${product.name}`)\n    }\n    \n    return messageId\n  }\n\n  // EN: Process incoming messages and respond according to choreography\n  // VI: Xử lý tin nhắn đến và phản hồi theo điều phối\n  // ES: Procesar mensajes entrantes y responder según coreografía\n  processMessages(): void {\n    const messages = this.acp.getMessages(this.state.id)\n    \n    messages.forEach(message => {\n      switch (message.type) {\n        case 'quote':\n          this.handleQuote(message)\n          break\n        case 'negotiate':\n          this.handleNegotiation(message)\n          break\n        case 'confirm':\n          this.handleConfirmation(message)\n          break\n      }\n      \n      this.acp.acknowledgeMessage(message.id)\n    })\n  }\n\n  private handleQuote(message: Message): void {\n    const { price, product } = message.payload\n    \n    if (price <= this.budget) {\n      // EN: Accept quote if within budget\n      // VI: Chấp nhận báo giá nếu trong ngân sách\n      // ES: Aceptar cotización si está dentro del presupuesto\n      this.sendResponse(message.sender, 'accept', { \n        originalMessageId: message.id,\n        agreedPrice: price,\n        product \n      })\n    } else {\n      // EN: Negotiate if price exceeds budget\n      // VI: Thương lượng nếu giá vượt ngân sách\n      // ES: Negociar si el precio excede el presupuesto\n      const counterOffer = Math.min(price * 0.8, this.budget)\n      this.sendResponse(message.sender, 'negotiate', { \n        originalMessageId: message.id,\n        counterPrice: counterOffer,\n        reason: 'budget_constraint'\n      })\n    }\n  }\n\n  private handleNegotiation(message: Message): void {\n    // EN: Handle seller's counter-negotiation\n    // VI: Xử lý thương lượng phản hồi của người bán\n    // ES: Manejar contra-negociación del vendedor\n    const { counterPrice } = message.payload\n    \n    if (counterPrice <= this.budget) {\n      this.sendResponse(message.sender, 'accept', {\n        originalMessageId: message.id,\n        finalPrice: counterPrice\n      })\n    } else {\n      this.sendResponse(message.sender, 'reject', {\n        originalMessageId: message.id,\n        reason: 'price_too_high'\n      })\n    }\n  }\n\n  private handleConfirmation(message: Message): void {\n    console.log(`Purchase confirmed by seller: ${JSON.stringify(message.payload)}`)\n    this.state.status = 'idle'\n  }\n\n  private sendResponse(receiverId: string, type: Message['type'], payload: any): void {\n    const responseMessage: Message = {\n      id: `msg_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,\n      type,\n      sender: this.state.id,\n      receiver: receiverId,\n      payload,\n      timestamp: Date.now()\n    }\n    \n    this.acp.sendMessage(responseMessage)\n  }\n}\n\n// SPEC: M4.AI-05 - Seller agent implementation\n// EN: Seller agent with marketplace choreography logic\n// VI: Tác nhân bán hàng với logic điều phối thị trường\n// ES: Agente vendedor con lógica de coreografía de mercado\n\nexport class seller_agent {\n  private state: AgentState\n  private acp: acp\n  private inventory: Product[]\n  private minProfitMargin: number\n\n  constructor(id: string, acpInstance: acp, inventory: Product[] = [], minProfit: number = 0.1) {\n    this.state = {\n      id,\n      type: 'seller',\n      status: 'idle',\n      preferences: { minProfitMargin: minProfit, autoAcceptThreshold: 0.95 }\n    }\n    this.acp = acpInstance\n    this.inventory = inventory\n    this.minProfitMargin = minProfit\n    \n    // EN: Register with ACP network\n    // VI: Đăng ký với mạng ACP\n    // ES: Registrarse en la red ACP\n    this.acp.registerAgent(this.state)\n  }\n\n  // EN: Add products to inventory\n  // VI: Thêm sản phẩm vào kho\n  // ES: Agregar productos al inventario\n  addProduct(product: Product): boolean {\n    const validation = ProductSchema.safeParse(product)\n    if (!validation.success) {\n      console.error('Invalid product:', validation.error)\n      return false\n    }\n    \n    this.inventory.push(product)\n    return true\n  }\n\n  // EN: Process incoming buyer inquiries and negotiations\n  // VI: Xử lý yêu cầu và thương lượng từ người mua\n  // ES: Procesar consultas y negociaciones de compradores entrantes\n  processMessages(): void {\n    const messages = this.acp.getMessages(this.state.id)\n    \n    messages.forEach(message => {\n      switch (message.type) {\n        case 'inquiry':\n          this.handleInquiry(message)\n          break\n        case 'negotiate':\n          this.handleNegotiation(message)\n          break\n        case 'accept':\n          this.handleAcceptance(message)\n          break\n        case 'reject':\n          this.handleRejection(message)\n          break\n      }\n      \n      this.acp.acknowledgeMessage(message.id)\n    })\n  }\n\n  private handleInquiry(message: Message): void {\n    const { product: inquiredProduct, budget } = message.payload\n    \n    // EN: Find matching product in inventory\n    // VI: Tìm sản phẩm phù hợp trong kho\n    // ES: Encontrar producto coincidente en inventario\n    const availableProduct = this.inventory.find(p => \n      p.name.toLowerCase().includes(inquiredProduct.name?.toLowerCase() || '') ||\n      p.category === inquiredProduct.category\n    )\n\n    if (availableProduct) {\n      this.sendQuote(message.sender, availableProduct, message.id)\n      this.state.status = 'negotiating'\n    } else {\n      this.sendResponse(message.sender, 'reject', {\n        originalMessageId: message.id,\n        reason: 'product_not_available'\n      })\n    }\n  }\n\n  private handleNegotiation(message: Message): void {\n    const { counterPrice, originalMessageId } = message.payload\n    const minAcceptablePrice = this.calculateMinPrice(counterPrice)\n    \n    if (counterPrice >= minAcceptablePrice) {\n      // EN: Accept counter-offer if it meets minimum profit\n      // VI: Chấp nhận đề nghị nếu đạt lợi nhuận tối thiểu\n      // ES: Aceptar contraoferta si cumple con el beneficio mínimo\n      this.sendResponse(message.sender, 'accept', {\n        originalMessageId,\n        finalPrice: counterPrice,\n        agreedTerms: 'standard'\n      })\n    } else {\n      // EN: Make counter-counter offer\n      // VI: Đưa ra đề nghị phản hồi\n      // ES: Hacer contraoferta\n      const counterCounterPrice = (counterPrice + minAcceptablePrice) / 2\n      this.sendResponse(message.sender, 'negotiate', {\n        originalMessageId,\n        counterPrice: counterCounterPrice,\n        reason: 'below_minimum_profit'\n      })\n    }\n  }\n\n  private handleAcceptance(message: Message): void {\n    const { finalPrice, product } = message.payload\n    \n    // EN: Confirm transaction and update inventory\n    // VI: Xác nhận giao dịch và cập nhật kho\n    // ES: Confirmar transacción y actualizar inventario\n    this.sendResponse(message.sender, 'confirm', {\n      transactionId: `tx_${Date.now()}`,\n      finalPrice,\n      product,\n      deliveryEstimate: '3-5 business days'\n    })\n    \n    this.state.status = 'idle'\n    console.log(`Sale completed: ${product?.name || 'product'} for $${finalPrice}`)\n  }\n\n  private handleRejection(message: Message): void {\n    console.log(`Buyer rejected offer: ${message.payload.reason}`)\n    this.state.status = 'idle'\n  }\n\n  private sendQuote(buyerId: string, product: Product, originalMessageId: string): void {\n    const quoteMessage: Message = {\n      id: `msg_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,\n      type: 'quote',\n      sender: this.state.id,\n      receiver: buyerId,\n      payload: {\n        originalMessageId,\n        product,\n        price: product.price,\n        availability: product.quantity || 1,\n        validUntil: Date.now() + (24 * 60 * 60 * 1000) // 24 hours\n      },\n      timestamp: Date.now()\n    }\n    \n    this.acp.sendMessage(quoteMessage)\n  }\n\n  private sendResponse(receiverId: string, type: Message['type'], payload: any): void {\n    const responseMessage: Message = {\n      id: `msg_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,\n      type,\n      sender: this.state.id,\n      receiver: receiverId,\n      payload,\n      timestamp: Date.now()\n    }\n    \n    this.acp.sendMessage(responseMessage)\n  }\n\n  private calculateMinPrice(offeredPrice: number): number {\n    // EN: Calculate minimum acceptable price based on profit margin\n    // VI: Tính giá tối thiểu có thể chấp nhận dựa trên tỷ suất lợi nhuận\n    // ES: Calcular precio mínimo aceptable basado en margen de beneficio\n    return offeredPrice * (1 - this.minProfitMargin)\n  }\n}\n\n// SPEC: M4.AI-05 - Agent choreography orchestrator\n// EN: Choreography manager for coordinating agent interactions\n// VI: Trình quản lý điều phối cho phối hợp tương tác tác nhân\n// ES: Gestor de coreografía para coordinar interacciones de agentes\n\nexport const agent_choreography = {\n  // EN: Initialize marketplace with ACP and sample agents\n  // VI: Khởi tạo thị trường với ACP và tác nhân mẫu\n  // ES: Inicializar mercado con ACP y agentes de muestra\n  initializeMarketplace(): { acp: acp, buyers: buyer_agent[], sellers: seller_agent[] } {\n    const acpInstance = new acp()\n    \n    // EN: Create sample sellers with inventory\n    // VI: Tạo người bán mẫu với kho hàng\n    // ES: Crear vendedores de muestra con inventario\n    const seller1 = new seller_agent('seller_001', acpInstance, [\n      { id: 'laptop_001', name: 'Gaming Laptop', category: 'electronics', price: 1200 },\n      { id: 'phone_001', name: 'Smartphone', category: 'electronics', price: 800 }\n    ])\n\n    const seller2 = new seller_agent('seller_002', acpInstance, [\n      { id: 'book_001', name: 'Programming Guide', category: 'books', price: 45 },\n      { id: 'desk_001', name: 'Office Desk', category: 'furniture', price: 300 }\n    ])\n\n    // EN: Create sample buyers with different budgets\n    // VI: Tạo người mua mẫu với ngân sách khác nhau\n    // ES: Crear compradores de muestra con diferentes presupuestos\n    const buyer1 = new buyer_agent('buyer_001', acpInstance, 1000)\n    const buyer2 = new buyer_agent('buyer_002', acpInstance, 500)\n\n    return {\n      acp: acpInstance,\n      buyers: [buyer1, buyer2],\n      sellers: [seller1, seller2]\n    }\n  },\n\n  // EN: Execute choreography simulation step\n  // VI: Thực hiện bước mô phỏng điều phối\n  // ES: Ejecutar paso de simulación de coreografía\n  simulateMarketActivity(marketplace: ReturnType<typeof agent_choreography.initializeMarketplace>): void {\n    const { buyers, sellers } = marketplace\n\n    // EN: Process all pending messages for all agents\n    // VI: Xử lý tất cả tin nhắn đang chờ cho tất cả tác nhân\n    // ES: Procesar todos los mensajes pendientes para todos los agentes\n    [...buyers, ...sellers].forEach(agent => {\n      agent.processMessages()\n    })\n\n    console.log('Market activity simulation step completed')\n  }\n}\n```\n\nThis implementation provides a complete ACP (Agent Communication Protocol) module with:\n\n**Core Features:**\n- `acp`: Base communication protocol with message queuing and agent registration\n- `buyer_agent`: Intelligent buyer with budget constraints and negotiation logic\n- `seller_agent`: Seller with inventory management and profit optimization\n- `agent_choreography`: Orchestrator for coordinating marketplace interactions\n\n**Key Choreography Elements:**\n- Message-based communication with validation\n- Multi-step negotiation flows (inquiry → quote → negotiate → accept/reject → confirm)\n- State management for agents during negotiations\n- Inventory and budget constraint handling\n- Automatic response generation based on business rules\n\nThe module follows all specified conventions with trilingual comments, Zod validation, and proper error handling."
}