@dpiponi any input that was acquired by built-in hardware or software is a feature.
1. There's no harm in providing pre-computed features along with the original input.
2. Without giving the machine the ability to extend its sources of input i.e. the ability for itself to build a tool that allows it e.g. to look into the eyes of the opposing chess player or to browse the Web freely, it's still being fed features.
Hope you find this useful.