[Ginsabo]

That's a great example — the "Product A + Product B pricing merge" is exactly the kind of structurally valid but impossible composition I was trying to isolate.

I really like the "Temporal Merging" framing. You're right: roadmap + release notes = syntactically consistent, entity-valid, but chronologically impossible.

I haven't explicitly modeled temporal integrity yet, but that seems like a natural extension of the cross-domain tests.

Regarding RAG: So far the focus has been on model-internal structural logic gaps. I haven't built retrieval-aware tests yet.

That said, I suspect many RAG failures are just amplified cross-document merging errors, so a temporal integrity layer might actually generalize well there.

If you have examples from brand monitoring contexts, I'd love to add them as new regression cases.