Single RemoteError with a merge-extensible, domain-prefixed code map;
owners throw at the failure point; streams surface marked failures;
clients consume ctx.remote directly with isRemoteFailure as the only
discrimination point and construct no failure instances.
Replace the two-row footer (TurnUsageDisclosure + icon-row clock chrome)
with a single whole-line trigger (clock · run time · turn usage · cache
hit · speed · TTFT) that opens a per-Turn usage dialog. The latest turn
keeps its tail always visible; older turns reveal the whole row on
hover/focus. Turns without usage data keep the plain clock line with
identical spacing.
Derive --dsh-content-font-size-secondary (setting -1 at <=14, setting -2
above; 13px at the default) with --dsh-content-font-delta-secondary in
gradient-shadow-text.css, and move every one-step-under-the-body text
onto it: think text and reasoning summaries, the shared DisclosureRow
title, ToolRow and bash-row summaries and file links, compaction/
context/command/retry/error rows, StatsLine, the workflow-run panel
tiers, reference summaries, the turn-status clock, and the feedback
note trigger. The markdown table variants join the same tier instead of
staying fixed; its 13px floor keeps them legible at the 12px setting.
At the default setting the flow-row titles and summaries render at 13px
(previously 14px) so they match think text at every setting instead of
sitting 2px above it.
Adopt --dsh-content-font-size / --dsh-content-font-delta across the flow
rows around the transcript body: DisclosureRow header (row height, title,
leading box, and registered glyphs, with StateDot exempt), ToolRow and
bash-row summaries and file links, think text, compaction/context/retry/
error rows, message clock and icon actions, the workflow-run panel, and
the workspace browser. Update the font-size Agent Note and add CSS-text
specs for the new adoptions.
The message-feedback note editor previously expanded inline inside the
assistant message's shared IconActions row, overflowing the row at every
viewport and pushing the branch action and the clock out of the column.
Rework it into a portable popover: the note editor is a fixed-position panel
portaled to document.body and anchored to the note trigger, so the row keeps
its single 28px line whether the editor is open or not and the panel escapes
the column's overflow clip.
The like/dislike buttons and the note trigger stay in the row unchanged; the
trigger toggles the popover (textarea + Save/Cancel + note-save failure) which
auto-focuses the input and closes on Escape or an outside click, returning
focus to the trigger. Rating/list-load failures surface in the row, note-save
failures inside the popover. Reuse the Menu portal surface tokens and add
@types/react-dom so the createPortal usage typechecks.
Layout e2e sweeps six viewports and pins that opening the editor leaves the
row's overflow, line count, and out-of-column items unchanged, and that the
panel is outside the column, within the viewport, and anchored to its trigger.
Unit tests cover the popover's portal-to-body, toggle, Escape/outside-click
dismissal, and unmount early-returns.
imccyu