{
  "context": "This criteria evaluates how well the engineer uses Flask-WTF's FileRequired validator to implement file upload validation. The focus is on proper usage of Flask-WTF's file upload field and validation components to ensure files are present before processing.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "FileField Usage",
      "description": "Uses Flask-WTF's FileField class (from flask_wtf.file) for the document field in DocumentUploadForm",
      "max_score": 30
    },
    {
      "name": "FileRequired Validator",
      "description": "Applies the FileRequired validator (from flask_wtf.file) to the document field to enforce file presence",
      "max_score": 40
    },
    {
      "name": "FlaskForm Inheritance",
      "description": "DocumentUploadForm correctly inherits from FlaskForm (from flask_wtf) to enable Flask-specific form features",
      "max_score": 15
    },
    {
      "name": "Form Validation",
      "description": "Uses Flask-WTF's validation methods (validate() or validate_on_submit()) in the process_upload function to check form validity",
      "max_score": 15
    }
  ]
}