发现和使用优秀的技能扩展
统一网络搜索技能。后备顺序 — web_search(Brave) → duckduckgo → claude.ai。自动缓存搜索结果(保存至 memory/research/)
Unified web search skill. Fallback order — web_search(Brave) → duckduckgo → claude.ai. Auto-cache search results (saved to memory/research/)