[insane_dreamer]

Except a god-level engineer wouldn't write unit tests that pass but don't actually test anything because it mocked the responses instead of testing the _actual_ responses, so your app is still broken despite tests passing and "victory!" claims by the "engineer".

Just one example of many personal experiences.

It is helpful, and very very fast at looking things up, sifting through logs and documentation to figure out a bug, writing ad-hoc scripts, researching solutions; but definitely junior-level when it comes to reasoning, you really have to keep your thinking cap on and guide it.