We use it at Uclusion to make sure our front end is passing the right arguments, by having it be the first thing our lambdas do with the request body:

  from jsonschema import validate as validate_schema
  def validate_syntax(self, event):
        """
        Subclasses are expected to override this to handle any syntactical validation different from here
        :param event: the request event object
        :return:
        """
        schema = self.get_schema() # implemented by individual validator objects
        validate_schema(event, schema)