Enhanced Todoist MCP Server Extended

Instructions

Implementation Reference

• src/index.ts:1267-1281 (handler)

  Handler logic for the todoist_complete_task tool: validates arguments using isTaskIdArgs, calls todoistClient.closeTask(taskId), and returns success message.

  if (name === "todoist_complete_task") {
    if (!isTaskIdArgs(args)) {
      throw new Error("Invalid arguments for todoist_complete_task");
    }
  
    await todoistClient.closeTask(args.taskId);
    
    return {
      content: [{ 
        type: "text", 
        text: `Task ${args.taskId} completed successfully` 
      }],
      isError: false,
    };
  }

• src/index.ts:198-211 (schema)

  Tool schema definition for todoist_complete_task, specifying input schema requiring a taskId string.

  const COMPLETE_TASK_TOOL: Tool = {
    name: "todoist_complete_task",
    description: "Mark a task as complete by its ID",
    inputSchema: {
      type: "object",
      properties: {
        taskId: {
          type: "string",
          description: "The ID of the task to complete"
        }
      },
      required: ["taskId"]
    }
  };

• src/index.ts:1083-1121 (registration)

  Registration of the todoist_complete_task tool (as COMPLETE_TASK_TOOL) in the list of available tools returned by ListToolsRequestSchema handler.

  server.setRequestHandler(ListToolsRequestSchema, async () => ({
    tools: [
      // Task tools
      CREATE_TASK_TOOL,
      QUICK_ADD_TASK_TOOL,
      GET_TASKS_TOOL,
      GET_TASK_TOOL,
      UPDATE_TASK_TOOL,
      DELETE_TASK_TOOL,
      COMPLETE_TASK_TOOL,
      REOPEN_TASK_TOOL,
      SEARCH_TASKS_TOOL,
      MOVE_TASK_TOOL,
      BULK_MOVE_TASKS_TOOL,
      // Project tools
      GET_PROJECTS_TOOL,
      GET_PROJECT_TOOL,
      CREATE_PROJECT_TOOL,
      UPDATE_PROJECT_TOOL,
      DELETE_PROJECT_TOOL,
      // Section tools
      GET_SECTIONS_TOOL,
      CREATE_SECTION_TOOL,
      UPDATE_SECTION_TOOL,
      DELETE_SECTION_TOOL,
      // Label tools
      CREATE_LABEL_TOOL,
      GET_LABEL_TOOL,
      GET_LABELS_TOOL,
      UPDATE_LABEL_TOOL,
      DELETE_LABEL_TOOL,
      // Comment tools
      CREATE_COMMENT_TOOL,
      GET_COMMENT_TOOL,
      GET_COMMENTS_TOOL,
      UPDATE_COMMENT_TOOL,
      DELETE_COMMENT_TOOL,
    ],
  }));

• src/index.ts:788-798 (helper)

  Helper type guard function isTaskIdArgs used to validate input arguments for todoist_complete_task and similar task ID-based tools.

  function isTaskIdArgs(args: unknown): args is {
    taskId: string;
  } {
    return (
      typeof args === "object" &&
      args !== null &&
      "taskId" in args &&
      typeof (args as { taskId: string }).taskId === "string"
    );
  }