One implementation provides a method for modifying a knowledge base on a client device. The method includes receiving input from a user of the client device specifying a first proposed modification to the knowledge base, modifying the knowledge base as specified by the first proposed modification, and subsequently receiving electronic information from a host server specifying a second proposed modification to the knowledge base. The method further includes comparing the second proposed modification to the first proposed modification previously made to the knowledge base and, upon comparison, determining whether to modify the knowledge base as specified by the second proposed modification.