I recently talked about Neptune, an AI driven app I built that takes a design in Figma and outputs a standards based WordPress block theme.

Still testing viable alternatives, I gave an AI the HTML output from claude.ai/design along with this prompt:

You’re in a folder for a WordPress website, the site URL is {URL}, you have full access to the theme I’m building in /{dir}. That theme should become a duplicate of the HTML design output in /design. in /design/index.html and /design/single.html you can load these into a browser and view them directly for the desired output. In the design folder you’ll also find example WordPress Blog theme files like theme.json and others for how the designer envisioned this translation to a WordPress theme might take place. Also see HANDOFF in the same folder. You have full access to the site itself through the studio mcp and you’re allowed to edit any content on the site you wish to acheive this goal. Work methodically. Section by section building, and stop to verify a section and refine it by checking browser screenshots before moving onto the next section. Work in modern block theme standards.

That’s it, not even a good prompt, and the humbling part is, the output is better than Neptune. It doesn’t follow standards as well, uses to many custom classNames and style.css directly rather than theme.json, but the output is much better.

I think the failings can be improved with a better prompt.

I should have just let them cook.