{
  "context": "This evaluation assesses how effectively the engineer uses the apache-airflow-providers-ftp package to retrieve structured directory metadata from an FTP server. The focus is on proper use of the FTPHook class and its describe_directory() method, which utilizes the MLSD FTP command for machine-parseable directory listings.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "FTPHook instantiation",
      "description": "Uses FTPHook class from airflow.providers.ftp.hooks.ftp to establish connection with the FTP server using the provided ftp_conn_id parameter",
      "max_score": 25
    },
    {
      "name": "describe_directory usage",
      "description": "Calls the describe_directory() method on the FTPHook instance to retrieve structured directory metadata using the MLSD command",
      "max_score": 40
    },
    {
      "name": "Remote path parameter",
      "description": "Correctly passes the remote_path parameter to describe_directory() to specify which directory to list",
      "max_score": 15
    },
    {
      "name": "Return structured data",
      "description": "Returns the dictionary output from describe_directory() which contains item names mapped to their metadata attributes (type, size, modify time, etc.)",
      "max_score": 20
    }
  ]
}