Visum Thinker MCP Server

Instructions

Implementation Reference

• src/index-backup.ts:1062-1102 (registration)

  MCP tool registration for 'project_save', including inline Zod schema for parameters and the handler function that delegates to ProjectServerManager.saveProject.

    "project_save",
    "Save the currently opened project in its TCP server",
    {
      projectId: z.string().describe("Project ID to save"),
      saveAs: z.string().optional().describe("Optional: Save with a different filename")
    },
    async ({ projectId, saveAs }) => {
      try {
        const result = await serverManager.saveProject(projectId, saveAs);
        
        if (result.success) {
          return {
            content: [
              {
                type: "text",
                text: `💾 **Progetto Salvato**\n\n✅ ${result.message}${saveAs ? `\n\n📁 Salvato come: ${saveAs}` : ''}`
              }
            ]
          };
        } else {
          return {
            content: [
              {
                type: "text",
                text: `❌ **Errore Salvataggio**\n\n${result.message || result.error}`
              }
            ]
          };
        }
      } catch (error) {
        return {
          content: [
            {
              type: "text",
              text: `❌ **Errore:** ${error instanceof Error ? error.message : String(error)}`
            }
          ]
        };
      }
    }
  );

• src/project-server-manager.ts:168-182 (handler)

  Handler logic in ProjectServerManager.saveProject that retrieves server info and sends a TCP command {type: 'save_project', saveAs} to the project-specific TCP server process for executing the save operation.

  async saveProject(projectId: string, saveAs: string | null = null): Promise<any> {
    const serverInfo = this.activeServers.get(projectId);
    if (!serverInfo) {
      return {
        success: false,
        message: 'Progetto non trovato'
      };
    }
  
    // Invia comando di salvataggio al server TCP
    return await this.sendCommandToServer(projectId, {
      type: 'save_project',
      saveAs: saveAs
    });
  }

• src/project-server-manager.ts:229-288 (helper)

  Helper method sendCommandToServer that establishes TCP connection to project server, sends the 'save_project' command as JSON, and parses the response from the server.

  async sendCommandToServer(projectId: string, command: any): Promise<any> {
    const serverInfo = this.activeServers.get(projectId);
    if (!serverInfo) {
      throw new Error('Server progetto non trovato');
    }
  
    return new Promise((resolve, reject) => {
      const client = createConnection(serverInfo.port, 'localhost');
      let buffer = '';
      
      client.on('connect', () => {
        const message = JSON.stringify({ ...command, requestId: Date.now() });
        client.write(message + '\n');
      });
  
      client.on('data', (data: any) => {
        buffer += data.toString();
        
        // Dividi per newlines per separare i messaggi
        const messages = buffer.split('\n');
        buffer = messages.pop() || ''; // Mantieni l'ultimo pezzo (potrebbe essere incompleto)
        
        for (const message of messages) {
          if (message.trim()) {
            try {
              // Rimuovi backslash-n letterali che il server TCP Python aggiunge
              const cleanedResponse = message.replace(/\\n$/g, '');
              const response = JSON.parse(cleanedResponse);
              
              // Ignora il messaggio di welcome, aspetta la risposta vera
              if (response.type === 'project_welcome') {
                continue;
              }
              
              // Risposta al comando ricevuta (query_result, save_result, error, etc.)
              if (response.type === 'query_result' || response.type === 'save_result' || 
                  response.type === 'error' || response.type === 'shutdown_ack' ||
                  response.result !== undefined) {
                client.end();
                resolve(response);
                return;
              }
            } catch (error) {
              // Ignora messaggi malformati, continua ad aspettare
              console.error('WARN: Messaggio TCP non parsabile:', message);
            }
          }
        }
      });
  
      client.on('error', (error: any) => {
        reject(error);
      });
  
      setTimeout(() => {
        client.end();
        reject(new Error('Timeout comando server'));
      }, 300000); // 5 minuti timeout per operazioni pesanti su reti grandi
    });
  }