OK, freegot semble être plus adaptée à ce que je cherche
Merci !
scripts/anstype/00README:
freegot This is a numerical variable. Its content is incremented
by 1 if the answer is 100% OK, none if it is false,
or anything between 0 and 1 for partially good answer.
It is not recommended to decrement this value, nor to
increment it more than 1. The real score is computed using it.