How your GPT starts the conversation shapes how people use it. Onboarding is part of the design, not an afterthought. Begin with a short explanation of what the assistant does and what it does not do. Offer two or three example prompts to remove guesswork. If needed, ask for initial inputs so the tool can personalize the response. This reduces friction and prevents incorrect usage. It also helps the user understand the structure behind the assistant. A clear onboarding flow transforms a static tool into a guided experience.