Capital Logic Designer serves as a robust graphical environment tailored for the creation of both logical connectivity designs, encompassing signals, and physical wiring designs, which include wires, splices, and multicores. This sophisticated tool enables engineers to efficiently and effectively craft logical electrical designs with ease. It facilitates electrical design and visualization at the platform level, streamlining modifications and enhancing decision-making through straightforward navigation between wiring and topology abstractions. The system automates design tasks through rules-driven device placements and wire routing, incorporating naming conventions, design rule checks, and customizable templates that can be automatically implemented. Furthermore, it offers preliminary insights into wire routing, bundle diameters, and harness complexity, thus allowing for the back-annotation of wire lengths to ensure precision in analyses related to voltage drop, weight, and additional factors. Overall, Capital Logic Designer significantly enhances the design process, making it an invaluable asset for engineers in the field.