I use cursor agent mode with claude on my NextJS frontend and Typescript GraphQL backend. It's a real, reasonably sized, production app that's a few years old (pre-ChatGPT).
I vibe code the vast majority features nowadays. I generally don't need to write a single line of code. It often makes some mistakes but the agent figures out that the tests fail, or it doesn't build, fixes it, and basically "one shots" it after it doing its thing.
Only occasionally I need to write a few lines of code or give it a hint when it gets stuck. But 99% of the code is written by cursor.
When you say "vibe code" do you mean the true definition of that term, which is to blindly accept any code generated by the AI, see if it works (maybe agent mode does this) and move on to the next feature? Or do you mean prompt driven development, where although you are basically writing none of the code, you are still reading every line and maintain high involvement in the code base?
Kind of in between. I accept a lot of code without ever seeing it, but I check the critical stuff that could cause trouble. Or stuff that I know the AI is likely to mess up.
Specifically for the front end I mostly vibe code, and for the backend I review a lot of the code.
I will often follow up with prompts asking it to extract something to a function, or to not hardcode something.
That's pretty impressive - a genuine real-world use case where the AI is doing the vast majority of the work.