Tell me the exact city/region, how many days you want, and your arrival date/time so I can build a geographically sensible route and check opening hours for the correct dates.
Give the address or neighborhood of your hotel/Airbnb and how you'll get around (walking, public transit, rental car) so each day's start/end points are efficient.
List must-sees, preferred pace, budget level, dietary restrictions, mobility access needs, and any specific restaurants or experiences you want to include.