What makes a premise actually work
A weak idea describes a world: "a school for witches." A strong premise describes a problem: "the worst student at a witch school is the only one who can hear the school's founder screaming under the floorboards."
Every idea below follows the same formula — a specific character, a situation with pressure on it, and a hook that makes you want to see the next scene. That's exactly the input an AI story pipeline needs to produce good shots.