The Peter Principle [describes how] people tend to rise through organisations through promotions until they reach a level of respective incompetence. (…) And because we are now incompetent, we no longer get promotions. We’re stuck. Our career has reached a dead-end because we’ve been promoted into incompetence. We’ve become bad at our jobs through no fault of our own.

And that is, as the essay goes on to explain, an apt principle to apply to developers who are embracing “agentic software development”, too.