dsh-plugin-cost-lens

Cost Lens — DeepSeek API rates and per-session costs for dsh web.

• Sidebar rate pill (above Settings): current rate state (Peak hours / Off-peak hours; until the peak/off-peak schedule starts it shows Peak hours with the flat prices), an Ends in: hh:mm countdown to the next change, and a click-to-expand detail with Input: $x.xxx/M · Output: $x.xxx/M. The peak/off-peak windows are shown in the browser's local timezone. A small spinner shows while rates refresh; a warning dot + tooltip appear when the last update failed ("working with data from last update date").
• Chat stats strip (under the prompt box): ≈ $0.35 · 1.2M in · 80k out for the active session.
• Session rows + hover cards (sidebar): a small cost next to the time field and a cost line in the hover card.
• Schedule to off-peak: long-press the send button to open a small menu and queue the draft for the next off-peak window start; scheduled prompts show above the composer (a distinct tint) with a cancel button. The host half keeps the queue and fires each prompt via the session's agent (agent.followup) — it works while the dsh web server is running, with no browser open.
• Workspace cost totals next to each workspace in the sidebar (sum of its sessions' costs).
• Account balance on the pill: shown in the expanded view and tooltip, with the last-updated time on hover; refresh interval configurable (5 minutes default).
• Config card (Settings → Plugins → Configurable): rate refresh interval, balance refresh interval, backfill window, per-surface display toggles (session rows, session cards, chat stats, workspace totals), Refresh now, and Recalculate costs buttons — the plugin configuration page.

Install / rebuild / revert

From GitHub

# install the plugin (and its host-half dependency,
# dsh-lib-context-injection, resolved as a git dependency)
dsh plugin --profile web add github:davidgereb/dsh-plugin-cost-lens

Then add the loader row to the profile patch file ($DSH_HOME/profiles/web/cordis.patch.yml):