Smartlead Simplified MCP Server

Instructions

Implementation Reference

• src/handlers/smartDelivery.ts:1213-1252 (handler)

  The core handler function that validates the input arguments using isDeleteFolderParams and executes the DELETE API request to the Smart Delivery endpoint `/spam-test/folder/{folder_id}` to delete the specified folder.

  async function handleDeleteFolder(
    args: unknown, 
    apiClient: AxiosInstance,
    withRetry: <T>(operation: () => Promise<T>, context: string) => Promise<T>
  ) {
    if (!isDeleteFolderParams(args)) {
      throw new McpError(
        ErrorCode.InvalidParams,
        'Invalid arguments for smartlead_delete_folder'
      );
    }
  
    try {
      const smartDeliveryClient = createSmartDeliveryClient(apiClient);
      const { folder_id } = args;
      
      const response = await withRetry(
        async () => smartDeliveryClient.delete(`/spam-test/folder/${folder_id}`),
        'delete folder'
      );
  
      return {
        content: [
          {
            type: 'text',
            text: JSON.stringify(response.data, null, 2),
          },
        ],
        isError: false,
      };
    } catch (error: any) {
      return {
        content: [{ 
          type: 'text', 
          text: `API Error: ${error.response?.data?.message || error.message}` 
        }],
        isError: true,
      };
    }
  }

• src/tools/smartDelivery.ts:564-578 (schema)

  MCP tool schema definition with input schema specifying the required folder_id parameter as integer.

  export const DELETE_FOLDER_TOOL: CategoryTool = {
    name: 'smartlead_delete_folder',
    description: 'Delete a folder from Smart Delivery.',
    category: ToolCategory.SMART_DELIVERY,
    inputSchema: {
      type: 'object',
      properties: {
        folder_id: {
          type: 'integer',
          description: 'ID of the folder to delete',
        },
      },
      required: ['folder_id'],
    },
  };

• src/types/smartDelivery.ts:423-430 (schema)

  Type guard function used for input validation, confirming args is an object containing a numeric folder_id.

  export function isDeleteFolderParams(args: unknown): args is DeleteFolderParams {
    return (
      typeof args === 'object' &&
      args !== null &&
      'folder_id' in args &&
      typeof (args as DeleteFolderParams).folder_id === 'number'
    );
  }

• src/index.ts:217-219 (registration)

  Registers the smartDeliveryTools array (including smartlead_delete_folder) with the tool registry if the smartDelivery category is enabled by license.

  if (enabledCategories.smartDelivery) {
    toolRegistry.registerMany(smartDeliveryTools);
  }

• src/handlers/smartDelivery.ts:122-124 (registration)

  Switch case in handleSmartDeliveryTool that routes calls to the specific delete folder handler.

  case 'smartlead_delete_folder': {
    return handleDeleteFolder(args, apiClient, withRetry);
  }