An application analysis mechanism analyzes a composite application for conformance to a set of component interaction rules that define one or more conditions that should be satisfied between components written in different languages, along with an action that is performed depending on the analysis of the conditions. Once the component interaction rules are defined, the composite application is received. Next, a model of the composite application is built that separates components of the composite application into categories based on the programming language used, and includes metadata to describe interaction between components. The set of component interaction rules is then run against the model of the composite application. The results of the analysis are then output. The automated analysis of composite applications removes much of the process that is prone to human errors to provide an efficient and consistent approach for analyzing composite applications.