Whereas org.drools.rule.Rule contains a wealth of interesting fields, the stable API org.drools.definition.rule.Rule restricts us to getName() and getPackageName() (and some MetaData - whatever that might be). I'd opt for an extension of this interface, providing access to agendaGroup, activationGroup and ruleFlowGroup. I see no obvious reason why these user defined attributes should remain hidden. These rule attributes would provide a good opportunity for writing more sophisticated event loggers, letting you specify rule filters by natural rule groupings. Cheers -W