The amount of documentation and attention to detail spent on code layout and API design (example: whether array sizes should be signed to unsigned integers, whe

The amount of documentation and attention to detail spent on code layout and API design (example: whether array sizes should be signed to unsigned integers, whether to use (start, length) or (start, end) to specify ranges) is often off the charts, too, and those are things the users will never see. As in those cases, the investment in these kinds of guidelines should be worth it because less time gets spent on such discussions later and consistency of products is improved.