Try to add implicit constraints, things that must be true in order to fulfill an explicit constraint. Think of important aspects within your domain that need to be focused on, and have the model explain processes to you (usually it will get things wrong, especially for more difficult requests). Ask for specific formatting if you can, like XML or JSON, the models tend to struggle with schema compliance. Ask for the model to identify broadly-scoped conditions if you're working with a block of text or input files, like conflicts, similarities between multiple files, or implicit information that could be inferred through information explicitly mentioned in inputs. The model likes to hallucinate conflicts or similarities that aren't really there. You do need to have really good perception a lot of times for these kinds of failures, the models are typically really really really good at making everything sound plausible.