Sure, here are a few tips:

- Use a static website generator (I use Astro but there are others) where the agent can fully control every aspect of the website

- Use skills to enhance the prompting, like this frontend-design one but can also combine it with copy writing/seo skills etc

- Give the agent control access to the browser to give it visibility into the result in order to iteratively improve upon it

- The last thing is to just be very demanding and setting a high bar, so ask for animations and ask the agent over and over again “ok and now let’s improve what you just did”