My answer is that the code they generate is still crap, so the new skill is in being able to spot the ways and places it wrote crap code, and how to quickly tell it to refactor to fix specific issues, and still come out ahead on productivity. Nothing like an ultra wide screen monitor (LG 40+) and having parallel codex or claude sessions going, working on a bunch of things at once in parallel. Get good at git worktree. Use them to make tools that make your own life easier that you previously wouldn't even have bothered to make. (chrome extensions and MCPs!)

The other skill is in knowing exactly when to roll up your sleeves and do it the old fashioned way. Which things they're good/useful for, and which things they aren't.