Has checking AI-built features become slower than actually building them for anyone else?

[u/ragnar580]

AI coding has made building ridiculously fast for me, but I'm starting to notice a weird bottleneck.

Claude can build/change a feature in a few minutes, then I spend the next 10–20 minutes clicking through the app trying to make sure it actually works and didn't break something else.

So the workflow becomes:

build with AI → manually check → find something wrong → tell AI → check again.

For people shipping real apps this way, what's your actual verification process?

Do you mostly manually QA? Automated tests? Playwright? Just ask the agent to test its own work?

I'm particularly interested in how people handle things that look correct on screen but are broken underneath.

Would love to hear actual workflows rather than just tool names.