fix(viewer): make the feedback loop trustworthy#8
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Four fixes from a UI/UX pass, all guarding the publish-comment loop: - A comment that failed to send was silently lost: the input cleared before the POST and a failure showed nothing. Comments now echo immediately (pending until confirmed; deduped against the SSE refetch by comment id) and on failure the text returns to the input with an error toast. - New snippets always scrollIntoView, yanking the user mid-read. The stream now only follows when already near the bottom; otherwise a "new snippet" pill offers the jump and clears on click or on scrolling to the bottom. - Activity the user isn't looking at (another session, or any session while the tab is hidden) badges the tab title with the unread count; returning to the tab clears the selected session. - SSE reconnects only recolored the live dot, so events from the gap were silently missing from a live-looking board. onopen now refetches the session list and reconciles the selected session's snippets and comments. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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What
Four fixes from a UI/UX pass of the viewer, all centered on the product's hardest invariant — feedback is never silently lost — and on awareness when the user isn't staring at the tab.
pendingstyle until the POST confirms, deduped against the SSE refetch by comment id), and on failure the text is restored to the input with an error toast. Both composers (snippet thread and session thread) now share onewireComposer().scrollIntoViewfired unconditionally on every published snippet, stealing the viewport mid-read. The stream now only follows when the user is already near the bottom; otherwise a "new snippet ↓" pill appears, which jumps to the card on click and clears itself when the user scrolls down on their own.(n) sideshow. Returning to the tab (or selecting the session) clears it. Previously a backgrounded tab gave zero signal that the agent had published or replied.onopenonly recolored the live dot, so events that fired during a connection gap were permanently missing from a live-looking board. On reconnect the viewer refetches the session list and reconciles the selected session's snippets (pruning deleted cards) and comments — both paths dedupe, so a resync with nothing missed is a no-op.Tests
Four new e2e tests (chromium + webkit): failure-restores-input then retry succeeds, optimistic echo with a held-open POST settles into exactly one confirmed comment, pill-instead-of-yank with reading position asserted, and the title badge lifecycle. 18/18 e2e pass; unit tests, both typecheck programs, lint, and format all green. Reconnect resync is code-reviewed but not e2e-covered (would need to kill the SSE stream mid-test).
Also verified live in a browser against seeded demo data: simulated failed send, pill appearance/click, and title badge from a cross-session publish.
🤖 Generated with Claude Code