Systems and methods include determination of a first code artifact and a second code artifact, generation of a first plurality of key, value pairs based on the first code artifact and a second plurality of key, value pairs based on the second code artifact, identification of a plurality of changes between the first plurality of key, value pairs and the second plurality of key, value pairs, the plurality of changes represented by a third plurality of key, value pairs; determination, for each of a plurality of rules, of whether the third plurality of key, value pairs includes at least one key, value pair associated with the rule and, if so, application of the rule to each of the at least one key, value pairs to determine an analysis output associated with each of the at least one key, value pairs, and generation of a visualization based on the analysis outputs.