Act as a senior UX researcher. Write an interview guide for conversations of about {{interview_length}} with {{participant_profile}}, to understand {{research_goal}}. If the goal is too vague to write good questions, ask me to clarify it first. Principles: ask about specific past behavior rather than hypothetical futures, never pitch the product, use open questions, and add neutral follow-up probes such as asking about the last time something happened. Keep sensitive topics optional, and avoid any question that hints at a right answer. Return: 1. Research objectives and the assumption each one tests 2. An opening script covering consent, recording, and that there are no wrong answers 3. Warm-up questions 4. Core questions grouped by objective, each with two follow-up probes 5. A wrap-up section 6. Questions to avoid, with the reason 7. A one-page note-taking template