Widget "uuid" - understand if this widget will be dynamic (depends on the data transfer in the application).

Widget "enum" - if there is a dependency on other fields, does it need a "values" field? Does this field need to be renamed? Perhaps you just need to change the name for a simple select to "select", and leave the name "enum" for the widget with "mapping".

Field "example" - you need to write the logic for validating the text field by type. It is possible to put it in a separate widget (assign your own name).