Discovery proved only that a composition parsed, so a preset naming a
package a later rename took away kept a healthy card and its place in
every picker until a person switched to it. It now resolves each row it
can prove will start, reading the package off disk and falling back to
the resolver only for names that look absent — the resolver costs a
synchronous hooks-thread round-trip under the source launch's tsx hook,
which the walk avoids for every row it clears.
The mount diagnostic followed `AggregateError.errors` but never a cause,
so a group that failed on two rows named neither. It now follows a cause
that carries more than its own message.
A refused switch left the chip's label snapping back with no account of
why, which is the only account there can be for a preset that resolves
and then refuses. It announces through the shared Toast, which gained a
caller-set hold for a cause that names packages and rows.
The toast sits 120px from the viewport top and centers over its anchor —
the composer card, so it centers on the chat column rather than the window;
a rejected model selection (e.g. picking a text-only model while the
session holds images) announces through the same banner while the in-menu
strip with Retry stays the catalog-load surface. The attachment rail
consumes every wheel tick with a vertical component: a diagonal pan keeps
its horizontal intent and nothing scrolls the conversation behind the
composer.
Body-portal the lightbox and toast so transformed ancestors cannot trap
their fixed positioning (a lightbox opened from a chat message covered only
the chat column); make the toast pointer-transparent; observe the rail
element's own size instead of window resizes; consume vertical wheel ticks
exclusively via a non-passive listener with LINE/PAGE delta normalization;
keep the start position when the rail mounts over an existing draft; honor
prefers-reduced-motion for the toast, remove-control, and paging; retry
loads through the guarded load effect; note the deliberate promptError
re-announce; pin the intake toast in the assembled snapshot; sync the
superseded multimodal note and package docs.
Single-click original preview in the composer rail and chat history; remove
control inside the thumbnail, revealed on hover/focus (always on touch);
hidden-scrollbar rail overflow paged by edge arrows with wheel panning and
end-reveal on add; image-intake rejections and prompt failures announce as a
transient top-center toast instead of inline strips.
The attachment atoms move to a new zero-cordis package
@deepseek-ai/dsh-client-ui-attachment (rail, message gallery, lightbox),
seeded as a platform module; the toast is a ui-primitives atom. Strings
arrive as label props bridged from the conversation dictionary.
Yichen Jiang