dsh-cost-pill

You spend a whole day building in DSH Web and the worst part of the month is not debugging but opening the bill and trying to reconstruct which calls hit the cache, which model ate the most, and how much the sub-agents quietly burned on top. dsh-cost-pill puts that ledger right under the input box: a capsule, visually identical to the official stats pill, sits at the far right of the same row and shows the current session's API cost, account balance, and cache-hit rate. A click expands a detail panel that breaks the spend down by peak/off-peak windows and per model, with the pricing source and verification date printed right on the panel.

A few details matter more than they first appear. Sub-agent sessions, even multi-level nested, are walked via the parentSession tree and folded into a single total, so a run that spawned twenty agents no longer reports only the parent's cost. The account balance is fetched through a host-side loopback-only route; the API key never leaves the host process, the browser receives a number and nothing more. Pricing refreshes in the background with TTL caching, multi-layer validation, and graceful fallback to the last known-good table when offline. Every color token, font size, border radius, and spacing value in the pill and panel is copied from the official source, so the plugin looks like it was always there.

Who it is for: long-running DeepSeek API users with heavy token volume, multi-model sessions, frequent sub-agent fan-out; anyone who wants to see exactly where each yuan went and cross-check the platform's actual deductions against the local estimate; and DSH Web developers who would rather glance at cost than switch tabs to the billing page. It renders on the Web surface only; TUI and other clients do not have this slot. The numbers are estimates, not invoices: transit-channel discounts, contract pricing, and hourly cache storage cannot be derived from session tokens, so for precise reconciliation the bundled fold-session script is the right companion.