# Annotation Type Defaults

@Retention(RUNTIME) @Target(METHOD) @Incubating public @interface Defaults
Denotes that the `RuleSource` method rule carrying this annotation initializes the rule subject with default values.

Default rules execute first for a given subject, just after the subject has been created but before `Model` rules and `Mutate` rules. The first parameter of the rule is the rule subject, which is mutable for the duration of the rule.

Please see `RuleSource` for more information on method rules.