A development environment includes a graphical design tool and a build agent. The graphical design tool allows a designer to design a primary logic component of a circuit. The graphical design tool generates modules using a hardware description language to represent the primary logic component of the circuit. The modules include abstract references to infrastructure for the circuit. The build agent synthesizes the modules into netlists and merges the netlists with a description of the infrastructure for the circuit. The infrastructure is generated in a development environment separate from the graphical design tool. The build agent includes an adjuster that adjusts the modules. The adjustment to the modules includes replacing the abstract references to the infrastructure with actual references utilized within the infrastructure.