A2A与MCP：强强联合的智能体协议

interface IntegratedProtocol {
  communication: A2AProtocol;
  context: MCPProtocol;
  bridge: {
    messageToContext: (message: A2AMessage) => MCPContext;
    contextToMessage: (context: MCPContext) => A2AMessage;
  }
}

class ProtocolBridge {
  // 消息转换为上下文
  async transformMessageToContext(message: A2AMessage): Promise<MCPContext> {
    return {
      type: 'mcp.context',
      content: message.parts[0].text,
      metadata: {
        source: 'a2a',
        messageId: message.id
      }
    };
  }

  // 上下文转换为消息
  async transformContextToMessage(context: MCPContext): Promise<A2AMessage> {
    return {
      type: 'text',
      parts: [{
        type: 'text',
        text: context.content
      }],
      metadata: {
        source: 'mcp',
        contextId: context.id
      }
    };
  }
}

// 推荐的集成模式
class IntegratedAgent {
  private a2aClient: A2AClient;
  private mcpClient: MCPClient;
  private bridge: ProtocolBridge;

  async process(input: any) {
    // 1. 转换为A2A消息
    const message = await this.bridge.toA2AMessage(input);
    
    // 2. 处理A2A通信
    const response = await this.a2aClient.sendMessage(message);
    
    // 3. 更新MCP上下文
    const context = await this.bridge.toMCPContext(response);
    await this.mcpClient.updateContext(context);
    
    return response;
  }
}