> AI models don't replace compilers, they replace software developers

No, what agents do is expand the scope of problems software developers can solve. It is no different than the introduction of compilers, type checkers, garbage collection, and so forth. A programmer in the 1950s could not have imagined how anyone could build a software system like Hacker News, let alone the complex software systems we basically take for granted in this century. It is hard to imagine what kind of software future generations will take for granted because of how much more power programmers will have with things like agents (and whatever comes next -- this is hardly the end of the story).