As we all know, it is much easier to read and verify code you've written yourself - perhaps it is only code you've written yourself that can be properly read and verified. As ever, tests can be of only limited utility (separate discussion).
It's easier to read the code you recently wrote, sure. But in real life people use and debug other people's code all the time, LLM generated code is just like that. Also, if you make it generate the code in small enough blocks you also end up knowing the codebase is if you wrote it.
