I do regularly read the code that Claude outputs. And about 25% of the time the tests it writes will reimplement the code under test in the test.

Another 25% of the time the tests are wrong in some other way. Usually mocking something in a way that doesn't match reality.

And maybe 5% of the time Claude does some testing that requires a database, it will find some other database lying around and try to use that instead of what it's supposed to be doing.

And even if Claude writes a correct test, it will general have it skip the test if a dependency isn't there--no matter how fervently I tell it not to.

If you're not looking the code at all, you're building a house of cards. If you not reading the tests you're not even building you're just covering the floor in a big sloppy pile of runny shit.