The spec is as much for humans as it is the machine, yes?

Spec should be made before hand and agreed on by stakeholders. It says what it should do. So it’s for whoever is implementing, modifying, and/or testing the code. And unfortunately devs have a tendency of poor documentation

Software development is only 70ish years old and somehow we have already forgotten the very very first thing we learned.

"Just get bulletproof specs that everyone agrees on" is why waterfall style software development doesn't work.

Now suddenly that LLMs are doing the coding, everyone believes that changes?