A method of processing a specification may include receiving, by a home site, information regarding a search for at least one good or service, automatically generating, by the home site, a specification comprising a command block, an origin block and a routing block, based on the received information, and transmitting, by the home site, the specification to the one or more destination marketplaces. One or more of the command block, the origin block and the routing block may include one or more domain-specific language instructions. The command block may include one or more instructions defining the search and one or more instructions defining one or more actions to perform with respect to results of the search. The origin block may include information identifying the home site. The routing block comprises information identifying one or more destination marketplaces.