Robotic processor embodiments determine via graphical image analysis physical attributes of an engagement area of a work-piece that a specified tool physically engages to execute a specific action. The processors identify a model set plurality of alternate substitute tools that are each available within a physical environment of the engagement area and have a body portion with physical dimensions that conform to physical dimensions of the work-piece engagement area, and thereby select a substitute tool that has a body portion that best conforms to the physical dimensions of the work-piece engagement area and meets constraints for substitute tool selection for executing the specific action.