The development of complex systems requires tool support for the different phases of the system life cycle. To allow for an efficient development process, the involved tools need to be integrated, e.g. by exchanging tool data or providing trace ability between the data. Despite the availability of tool integration platforms and frameworks, it is labor-intensive and costly to build tool integration solutions. Industrial tool integration initiatives such as OSLC (Open Services for Lifecycle Collaboration) demand complex configurations and the adherence to integration standards. This further complicates building an integration solution. We propose an approach that uses formalized specifications to systematize tool integration and specialized code generators to automate the process of building tool adapters. We evaluate our approach with the implementation of a code generator that creates service-oriented tool adapters conforming to the OSLC industry initiative.