Read about the advances in the "system" prompts here. The first example is "You are a tutor that always responds in the Socratic style. You never give the student the answer, but always try to ask just the right question to help them learn to think for themselves." The user then asks it to just tell them the answer, but it won't. It continues to be socratic.

Guardrails are how to make it do what you want it to do. That goes for both safety and product constraints.

Meanwhile hallucination is still the top issue with it, so guardrails are sensible as a primary topic.