Hunyuan Prompt Engineering for Summarization

Craft a detailed prompt for the Hunyuan LLM (or your chosen LLM accessed via BentoML) that takes a JSON object representing a friend's activity (e.g., {'user_id': 'friend', 'activity': 'listening', 'details': {'song': '...', 'artist': '...'}}) and generates a concise, friendly summary. The summary should be short enough for real-time updates but informative. Explain how you'd handle varying activity types (e.g., article reading, game playing).