In response to detecting a code change request for a particular file of multiple files of a software build during testing, a computer generates a sensitivity rating of the particular file to cause breaks in the software build based on a relative level of failure of the particular file as compared to the multiple files based on one or more factors. The computer outputs a response to the code change request based on the sensitivity rating to one or more integrated development environment interfaces with access to the particular file of the software build. The computer uses the sensitivity rating to determine whether to grant the code change request.