dsh-mobile-topbar

The DSH left sidebar, with its session list, workspaces, and settings, reserves a full grid column even in the collapsed rail state. On a phone, that means a meaningful chunk of a small screen is permanently given over to a sidebar that sits idle most of the time. dsh-mobile-topbar exists to reclaim exactly that space on narrow viewports, replacing the reserved column with a compact top bar.

On screens 768px wide or narrower, the sidebar stops occupying grid space and becomes an off-canvas drawer that appears only when the hamburger button is tapped. The top bar places the hamburger on the left, the DeepSeek Harness brand mark and wordmark in the center, and a new-session button on the right. The right-side file or document preview panel and the Settings modal are both repositioned so they never render underneath the top bar. If the right panel is open when the drawer is requested, it closes first so the drawer is what actually becomes visible. Screens wider than 768px are completely unaffected.

If you regularly use DSH on a phone or tablet and want the session list and other sidebar features within reach without sacrificing main content width, this plugin is built for that scenario. It does not fork or duplicate any sidebar internals; it injects scoped CSS overrides and reuses the built-in icon components and layout services of the app itself, keeping the footprint small and the risk low.