Need advice on makeability

Hey guys,
I want to develop a ai-assisted UI/UX improvement feature for a website, that creates prototypes out of event sourcing sessions (I want to improve UI/UX of the prototypes) and have following plan in mind:
extract html/css? from the frontend somehow -> feed it into ai with an optimized prompt -> insert the new html/css back.
Since I have no idea on if this can even work, I wanted to ask you guys. If this doesn't work, do you have any ideas on how this could be done?
Its for a Uni project.
used technologies:
react.ts frontend
express.js backend