@oksure/dsh-client-ui-mobile-comfort

Touch-device comfort fixes for the DeepSeek Harness web client, packaged as an out-of-tree dsh bundle plugin.

What it fixes

On phone and tablet browsers the dsh web UI shows two touch-specific problems:

1. Ghost tooltips. Tapping a sidebar control synthesizes mouseenter/focus, which mounts a tooltip; when the tapped control then moves (sidebar collapse animation), no trailing mouseleave ever fires on touch browsers, so the bubble lingers indefinitely. Reproduced on WebKit: the tooltip stays visible 3+ seconds after every tap with no pointer anywhere near. This sheet hides [role="tooltip"] under (hover: none) and (pointer: coarse) — tooltips are a hover affordance, and coarse pointers get none.
2. Double-tap-zoom ambiguity. The app ships no touch-action rules, so on iOS Safari rapid second taps zoom the page instead of clicking (and first clicks carry the legacy delay). The sheet sets touch-action: manipulation on interactive elements, leaving pinch zoom untouched.

Desktop pointers are unaffected: both rules key off input modality (touch-action) or pointer class (hover/pointer media features).

Install

dsh plugin --profile web add file:/path/to/dsh-mobile-comfort

Then restart the profile (dsh web). Verify by loading the UI on a phone: tapping the sidebar toggle must not leave a tooltip behind.

Files

• lib/client.js — browser half: injects one stylesheet for the lifetime of the plugin fiber (ctx.effect, HMR-safe disposer).
• lib/index.js — host half: no-op (browser-only plugin).
• cordis.patch.yml — bundle patch inserting the ui-mobile-comfort row.

Notes for upstream

The root causes live in @deepseek-ai/dsh-client-ui-primitives (Tooltip.tsx: onFocus shows immediately and only disabled handles the no-mouseleave case) and in the absence of any touch-action policy. A full diagnosis with engine-level event traces is in docs/mobile-touch-report.md; it is written up to be posted to the upstream Discussions as well.

License

MIT