MCP Test Server

Instructions

Implementation Reference

• src/domains/tasks.js:37-62 (handler)

  TaskService.create implements the core logic for the create_task tool: destructures input, validates title, generates new task ID, adds to mock data store, and returns success response with new task.

  static create(taskData) {
    const { title, status = 'pending', assignedTo } = taskData;
  
    if (!title) {
      return {
        success: false,
        message: 'Title is required'
      };
    }
  
    const newTask = {
      id: Math.max(...tasks.map(t => t.id)) + 1,
      title,
      status,
      assignedTo: assignedTo || null
    };
  
    tasks.push(newTask);
  
    return {
      success: true,
      message: 'Task created successfully',
      data: newTask
    };
  }

• src/domains/tasks.js:133-156 (schema)

  Schema definition for create_task tool within taskToolSchemas array, defining input parameters (title required, status with default, assignedTo optional).

  {
    name: 'create_task',
    description: 'Create a new task',
    inputSchema: {
      type: 'object',
      properties: {
        title: {
          type: 'string',
          description: 'Task title'
        },
        status: {
          type: 'string',
          description: 'Task status',
          enum: ['pending', 'in-progress', 'completed'],
          default: 'pending'
        },
        assignedTo: {
          type: 'number',
          description: 'ID of user assigned to this task'
        }
      },
      required: ['title']
    }
  },

• mcp-server.js:62-63 (registration)

  In the MCP server's CallToolRequestSchema handler, the switch statement registers and dispatches create_task calls to TaskService.create.

  case 'create_task':
    return createMcpResponse(TaskService.create(args));

• mcp-server.js:39-44 (registration)

  In the ListToolsRequestSchema handler, taskToolSchemas (containing create_task schema) is included in the list of available tools.

  return {
    tools: [
      ...userToolSchemas,
      ...taskToolSchemas,
      searchToolSchema
    ]