dsh-balance

A lightweight DeepSeek Harness sidebar plugin that shows your real API account balance via the official /user/balance endpoint. No local price-table estimation — a decrease is real spend, a refill is ignored. Since the official API does not expose per-request usage breakdowns, local cost estimates have historically drifted badly (one known case overestimated by 70x). This plugin simply trusts the balance delta from the billing system.

The experience is built around speed and zero overhead. About twenty seconds after a model response finishes (when billing settles), the plugin queries once and pushes the result over an SSE long-poll channel within one second; a fifteen-second fallback poll keeps things alive. Below the alert threshold (default 5 in your account currency), the number turns orange with a hover hint. On network failure it backs off exponentially from 5 s to 5 min, greys out the last known value, and auto-pauses polling when the tab is hidden. The whole plugin ships with zero npm runtime dependencies and no build step; the API key is referenced via an environment variable, re-resolved per request, and never written to disk.

Ideal for DeepSeek Harness users who run batch prompts daily, care about API spend, and would rather glance at a sidebar widget than log into a console. The UI is bilingual and follows the system locale automatically. Setup is a few key-value lines in your profile config — no extra service, no dashboard, just the number where you already look.