It would be so awesome to make a cartoon today using original techniques with hand-drawn scenes, multiplane cameras, and most importantly jazz music :)
Tbf, as long as you really know what you're doing and have the sense to avoid falling into a spaghetti code trap, generating bigger chunks of code absolutely works and should be done. The pitfall happens when
(a) the dev has no idea what the agent is doing
(b) the dev gives overtly-broad instructions.
If you give it specific enough tasks (not to the point where it's writing singular functions) but a general class description, you're on a good track.