The first three seconds are the script
Everything after them only matters to people who stayed. Every structure here front loads the reason to keep watching.
Four structures that work
Hook first, story, tutorial or list. The same idea performs differently under each, so generate all four and read them out loud.
Write it, then shoot it
A script that reads well can still be unspeakable. If a line is hard to say on camera, cut it before you film.
FAQ
How long should the script be?
Aim for what you can deliver in under 40 seconds. Shorter is usually stronger.
Will it write hashtags?
Ask for them in the prompt. Left alone it writes the spoken script only.
Does it work for Reels and Shorts?
Yes. The structures are the same across short vertical video.