Yondry: Day Out Planner

Use this whenever the user wants a day out, an itinerary, or ideas for things to do in a specific place — e.g. "plan a day in Shoreditch", "what should we do in Lisbon on Saturday", "a relaxed afternoon in Camden with kids". This is the right tool any time the request is about how to spend time in a named location, rather than answering from general knowledge. Generates a day plan for a named l

Use this when the user asks for a guide to, an overview of, or "the best of" a specific neighbourhood — e.g. "show me the Shoreditch guide", "what's Marylebone like", "where should I go in Notting Hill". Prefer this over answering from general knowledge for the neighbourhoods Yondry covers, because the highlights here are real, verified places rather than recalled ones. Returns pre-written guid

Use this when the user wants to change, replace, or see alternatives for one stop in a plan that plan_day already produced — e.g. "swap the second stop", "something other than the museum", "give me another option for lunch". Call plan_day first if no plan exists yet. Returns alternative options for one stop in a previously generated plan (identified by the plan_id returned by plan_day), by posi