LLM’s are fundamentally text generators, not verifiers.
They might spot some typos and stylistic discrepancies based on their corpus, but they do not reason. It’s just not what the basic building blocks of the architecture do.
In my experience you need to do a lot of coaxing and setting up guardrails to keep them even roughly on track. (And maybe the LLM companies will build this into the products they sell, but it’s demonstrably not there today)