1. A method comprising: receiving a data stream of an integrated circuit design layout from a design stage; optimizing, by a processor, one or more layout shapes in the integrated circuit design layout to obtain an optimized integrated circuit design layout; extracting one or more new layout features from the optimized integrated circuit design layout; determining a physical location and one or more characteristics of the one or more new layout features; and determining, at a manufacture stage, one or more router-specific directives to replicate instantiation of the one or more new layout features at the design stage.