(Someone deleted a comment about why you'd want a mobile Codex app. This is the answer I wrote.) Once you've used these coding agents a lot, you develop a pretty intuitive feel for how they work, what they're capable of, what they're good at, and where their weaknesses are. Hopefully, you're already pretty familiar with the code base you're working on. Combining the two, this means you can get quite far essentially "…
> i.e. not looking at the actual code You must be kidding me.
Imagine saying that you don't need to look at the roads or have no hands on the wheel whilst driving because someone-else said that the car can 'drive' itself; therefore, no need for anyone (including taxi drivers) to learn how to drive.
Just because a machine can generate plausible looking code does not mean you don't need to look at it or not know how it works or why it doesn't work.