Comment by victorNicollet

The snippet you shared is consistent with the kind of output I have also been seeing out of LLMs: it looks correct overall, but contains mistakes and code quality problems, both of which would need human intervention to fix.

For example, why is the root object's entityType being passed to the recursive mergeEntities call, instead of extracting the field type from the propSchema?

Several uses of `as` (as well as repeated `result[key] === null`) tests could be eliminated by assigning `result[key]` to a named variable.

Yes, it's amazing that LLMs have reached the level where they can produce almost-correct, almost-clean code. The question remains of whether making it correct and clean takes longer than writing it by hand.