Oh yay, thanks for trying it out! Do you have your project up somewhere? I'd love to take a look.
TIL that apparently you can simply use the generic follow up prompt “did you do what I asked?” and it will verify and course correct on its own, see for instance:
https://twitter.com/ericjang11/status/1639882111338573824
No idea how well this works in practice for things like JS games with visual elements, but seemed like an interesting approach!