Short Rest to use Hit Dice to gain HP during a short rest and possibly restore spell slots. (I think some classes do this, wizards maybe?) Also restore class features depending on the class level (bards get bardic inspiration back during a short rest only after level 5, for example).
Long Rest to regain all Hit Dice, all HP, and all spell slots and class features. Basically a complete reset.
Spell slots and class features would need some thought with the current state of this library (they technically are included but need reworking for a better developer experience).
Features I would like to see included:
Spell slots and class features would need some thought with the current state of this library (they technically are included but need reworking for a better developer experience).
The HP/HD aspect should be easier.