I don’t know in which one but I was able to buy a book to reset my skill points in another dragon age, are these books available again?
I didn’t found anything for it but neither against it.
All the blacksmith NPCs sell an amulet that resets all skill points when equipped (to you, or to your companions). The first one costs 1 coin, consecutive ones cost 439 coins. After equipping it, it disappears (it’s a single-use item). Be sure to re-equip your old amulet!
You’ll encounter your first blacksmith in Haven.