The collapsed rail becomes a 56px icon column (24px controls between 16px paddings) carrying expand, new session, search, and new workspace — each aligned with its expanded counterpart; rail search expands the sidebar and focuses the search box. Collapse/expand now animates: the frame transitions grid-template-columns (and the surviving handle its left) on the deepsuite sider curve — --ds-ease-in-out over --ds-transition-duration-slow, supplied by ui-theme's base sheet. Transitions pause during drags (data-dragging on the frame, set for the whole gesture) and under prefers-reduced-motion.
@deepseek-ai/dsh-client-ui-sidebar
Sidebar plugin: session multi-level tree (cwd grouping + parentId nesting), search, by-workspace grouping, state dots, three creation entries. The collapsed render is the layout-owned compact rail: expand / new session / search (expands and focuses the search box) / new workspace icons plus the settings entry. Contract: the slot system standard.
src/client/contract/slots.ts is the single-domain contract file: SidebarRootInjected (the registrant's own injected share — plain service callbacks: onOpen/onCreate/onToggleSidebar) and SidebarRootComponentProps = PropsRuntime<'sidebar'> & SidebarRootInjected (owner {collapsed,width} plus the standard useSessions hook, resolved off ui-layout's SlotMap declaration, never re-stated). apply registers SidebarRoot cast-free against that composition; the inject factory closes over the plugin's own ctx.
There is no plugin store: rows derive in the component (useMemo over the useSessions snapshot + local expansion/search state) through the pure deriveRows in tree.ts.
The /client export surface is the plugin body (apply/inject) plus the contract types only — SidebarRoot, the row components, and the tree derivation are internal (the slot registration closes over them; tests import src paths directly).
Model Experience
None, as the sidebar renders the browser session list; nothing here reaches a model request.
KV Cache effect
None; this package neither assembles nor sends a provider request.
Known Limitations and Deferred Work
- State dots have two live data states (running/none) — the done/error/amber sources arrive with P-II approvals and notifications; the four-color primitive is already wired.
- Group-by menu ships by-workspace only — Update/Status grouping strategies are drawn without specs and deferred.
- "New task completed" unread marking is local viewing state — completion-time > last-seen never reaches the host.