Knowledge: Capture, Summarize, and Organize Manage a personal knowledge base that extracts content from artifacts, generates summaries, and organizes entries into fluid categories. When to activate this skill: 1. Explicit knowledge operations: the user says "save this", "add to knowledge", "capture this article", "summarize this video", "sort knowledge", "organize categories", "import knowledge", etc. 2. Proactive recall: the user asks about ANY topic where the knowledge base might have relevant entries. This includes general questions like "what's a good workout routine", "how should I appro…