It's not worthless, it's just not worldchanging as is even in the fields where it's most useful, like programming. If the trajectory changes and we reach AGI then this changes too but right now it's just a way to

- fart out demos that you don't plan on maintaining, or want to use as a starting place

- generate first-draft unit tests/documentation

- generate boilerplate without too much functionality

- refactor in a very well covered codebase

It's very useful for all of the above! But it doesn't even replace a junior dev at my company in its current state. It's too agreeable, makes subtle mistakes that it can't permanently correct (GEMINI.md isn't a magic bullet, telling it to not do something does not guarantee that it won't do it again), and you as the developer submitting LLM-generated code for review need to review it closely before even putting it up (unless you feel like offloading this to your team) to the point that it's not that much faster than having written it yourself.