Agentic RSS digest using the feed CLI. Fetch, triage, and summarize RSS feeds to surface high-signal posts. Use when: (1) reading RSS feeds or catching up on news, (2) user asks for a digest, roundup, or summary of recent posts, (3) user asks what's new or interesting today, (4) user mentions feed, RSS, or blogs.

使用 feed CLI 构建智能 RSS 摘要，自动抓取、分类和总结 RSS 订阅源，筛选高价值内容。适用场景：(1) 阅读 RSS 订阅源或浏览最新新闻，(2) 用户请求最近文章的摘要、周报或汇总，(3) 用户询问今日有何新动向或有趣内容，(4) 用户提及订阅源、RSS 或博客