eca-1.0.x-dev/modules/file/config/schema/eca_file.schema.yml

action.configuration.eca_file_rename:
  type: mapping
  label: 'Configuration for the "File Rename" action'
  mapping:
    new_filename:
      type: string
      label: 'New file name'
      constraints:
        NotBlank: []
    exists_behavior:
      type: string
      label: 'Behavior'
      constraints:
        Choice:
          callback: '\Drupal\eca_file\Plugin\Action\FileRename::getAllValidFileBehaviors'
        NotBlank: []
    object:
      type: string
      label: 'Token name holding the entity'

action.configuration.eca_file_write:
  type: mapping
  label: 'Configuration for the "File Write" action'
  mapping:
    data:
      type: text
      label: 'File content'
      constraints:
        NotBlank: []
    object:
      type: string
      label: 'Token name holding the entity'