There's nothing insane about writing a de/serializer for an open source format with tests telling you every time you get it wrong to fix in a loop. Insane would be if they were willing to entrust critical production data to their vibecoded replacements (in multiple ways).

Most of the SQLite test suite, TH3, is not open source or available to the public. You need to pay an undisclosed amount of money to access it, which would seem to defeat the already dubious proposition of vibe-coding a SQLite clone.

https://sqlite.org/th3.html

If you had told me five years ago that OpenAI was going to be able to do this at all, much less that they were going to do it routinely as a test of new AI models, I would have thought you were being so unrealistically optimistic that I might have suggested that you up your dosage of antipsychotic drugs.

I mean, if you had said they definitely would not be able to do this, I would also have thought you were probably kind of stupid. But we're definitely on the path that looks like AIs keep getting smarter with no limit in sight.