Could you describe what this looks like in practice? Say I don't want it to use a certain concept or function. What would "positive reinforcement" look like to exclude something?
Instead of saying "don't use libxyz", say "use only native functions". Instead of "don't use recursion", say "only use loops for iteration".
Instead of saying "don't use libxyz", say "use only native functions". Instead of "don't use recursion", say "only use loops for iteration".