How can AI help develop a script while I keep ownership of the idea?
Ask AI for questions about your script before you ask for replacement copy. Evelyn Parker described AI as something to bounce ideas against while keeping her own creative process, and this is one way to apply that.
Hand it a draft and the audience it's for. Then ask where a reader might lose the point, which claim needs support and what question the ending leaves unanswered, and tell it to wait before rewriting.
You read the questions and decide which ones are worth answering. The AI may misunderstand an intentional choice or suggest a direction that doesn't fit your work. You can reject that feedback and still keep the useful questions.
Revise the script yourself, or ask for a limited edit to a passage you've selected. Keep the original so you can compare the meaning as well as the wording.
A longer list of suggestions or a smoother replacement only helps if it gives you a better view of the idea you want to communicate.
What to try this week
Choose a short script with one clear purpose and run this once. Save the original, note which of the AI's questions you answered, and compare your revision against the first version.