Forbidding LLM to write comments and docstrings (preferrably enforced by build and commit hook) is one of the best "hacks" for using that thing. LLM cannot help itself but emit poisonous comments.
Or maybe clone the comments from where it cloned the source.
And since it's vibe coded, no one knows what the opcodes are. LLM won't remember. Human has no comments. Human can't trust post-hoc LLM-generated comments because they're poisonous.