940842546/dsh-usage-billing

中文 | English

A build-free dual-face plugin for DeepSeek Harness: tracks every DeepSeek model call across all sessions, bills them by official pricing, and provides charted usage panels on the main UI and the settings page.

Billing: legacy prices before 2026-08-17 00:00 (Beijing time); peak/off-peak pricing after that (peak = weekdays 9:00–12:00 & 14:00–18:00 (effective 2026-08-23; before that weekends also counted as peak); off-peak is half the peak rate; from 9/10 12:00 the flash series reprices again (off-peak hit 0.02 / miss 1 / out 4, peak ×2, pro unchanged; V4 Pro continues after 9/14 at unchanged pro rates (a routing toggle is kept for a future official change; currently off))). Public holidays and make-up workdays bill off-peak all day (the 2026 State Council schedule is built in; extra dates can be added in settings). Price table at the bottom.

Features

• Automatic tracking: listens to llm/stream and records every model call (input / output / cache hit / cache miss tokens)
• Historical backfill: on first start, scans local session logs to rebuild historical usage and cost, with session titles
• Tiered billing: each call falls into "pre-change · legacy", "post-change · peak", or "post-change · off-peak" by Beijing time (since 2026-08-23, peak applies on weekdays only; before that weekends also counted as peak; public holidays and make-up workdays are off-peak all day — the holiday list is editable in settings, so the 2027 schedule can be added once published)
• Budget alert notifications: desktop toast when crossing 80%/100% thresholds (once per threshold per day), plus progress bars (orange near 80%, red when over)
• Configurable pricing: price table, peak hours, boundary date, and USD exchange rate are all editable (changes apply to subsequent calls only), with one-click reset to defaults
• Export: one-click CSV (daily / per-session, filename includes the date range) or JSON export for accounting
• Official balance: auto-detects the configured DeepSeek API key and fetches the official account balance (total / topped up / granted), refreshing every 10 minutes; silently skipped when no key is configured
• Balance runway: estimates days left and the projected exhaust date from the 7-day average spend
• Alert history: recent budget alerts listed in the settings page
• Daily trend chart: 30-day daily cost bars in the settings page
• More robust storage: writes keep a .tmp copy and auto-recover from it when the main file is corrupt; multi-instance heartbeat detection warns about concurrent writes
• Main UI:
  • A "Token Usage" card at the sidebar foot (current model + this-session tokens/cost, thousands-separated) → opens a centered "Token Usage & Cost Stats" dialog (¥/USD currency toggle, overview cards, by-model / by-session tables, budget progress, official balance, billing-segment ratio, usage heatmap)
  • A persistent line under the composer showing the current session usage: a ring (daily budget, amber ≥80%, red ≥100%) plus cost/calls/tokens — click to open a detail panel (session cost & today total, billing-band ratio bar, calls/in/cache-hit-rate/out rows, per-band cost, per-model split, daily budget; Esc or outside click dismisses) — interaction and styling match the official ContextMeter
• Settings → Usage Stats: full details (stat cards, budget progress, segment ratio, day/week/month/year/all heatmap with instant hover tooltips, per-session Top 8 (click to open the session), per-model, recent calls, backfill/clear/export, pricing & budget editor)
• **Dynamic tool usage_billing **: the model can query statistics directly ("how much have I spent?" / "today?" — supports today/month/all scopes)
• Persistence: data is written to .dsh-usage-billing.json under the write-policy root; survives restarts (before v0.5.4: .dsh-usage-stats.json, auto-migrated on upgrade)
• Bilingual UI: all panel copy follows the app language setting (Chinese / English) and switches instantly

Screenshots

The screenshots below use fictional demo data.

Stats dialog · overview (opened from the sidebar Token Usage card)

Stats dialog · charts (billing-segment ratio + usage heatmap, with ¥/USD toggle)

USD mode (one-click toggle in the dialog header, exchange-rate converted)

Settings · Usage Stats

Install

Option A: one-line npm install (recommended, prebuilt)

dsh plugin --profile web add dsh-usage-billing

npm package: https://www.npmjs.com/package/dsh-usage-billing

The package auto-mounts at startup through its dsh.bundle.patch (cordis.patch.yml) — no other configuration needed.

⚠ Do not patch official bundles (e.g. @deepseek-ai/dsh-web-app/cordis.patch.yml) directly, and do not place the plugin inside the npm-cache\_npx cache (npm reify rebuilds it and leaves dangling links).

A local path works too: dsh plugin --profile web add <repo path>.

Option B: user patch layer (without touching the profile)

Add the content of the repo-root cordis.patch.yml to:

%USERPROFILE%\.dsh\cordis.patch.yml

- insert:
    - id: usage-billing
      name: 'dsh-usage-billing'

Data & billing

Data	Location / notes
Stats file	.dsh-usage-billing.json under the write-policy root (usually the user home)
Billing zone	Beijing time; rate-change boundary 2026-08-17 00:00
Unit	CNY per million tokens

Price table (CNY per million tokens):

Period	Model	Cache hit	Cache miss	Output
Before 8/17	flash	0.02	1	2
Before 8/17	v4-pro	0.025	3	6
After 8/17 · off-peak	flash	0.05	1.5	4.5
After 8/17 · peak	flash	0.10	3.0	9.0
After 8/17 · off-peak	v4-pro	0.15	4.5	13.5
After 8/17 · peak	v4-pro	0.30	9.0	27.0
Since 9/10 12:00 · off-peak	flash	0.02	1	4
Since 9/10 12:00 · peak	flash	0.04	2	8

Models are classified by name substring: names containing flash (the new deepseek-flash plus legacy deepseek-v4-flash / deepseek-v4-flash-vision-exp — retired names are served by V4.1-Flash at Flash rates) are billed at flash rates, pro at pro rates, others as "unpriced / free".

Reference: DeepSeek API pricing

Holiday billing: the 2026 State Council holiday schedule (holidays plus make-up workdays) is built in; a matching date bills off-peak all day. The "Off-peak dates" editor in settings accepts one YYYY-MM-DD per line, so the 2027 schedule can be added by hand once published — no plugin release needed.

Structure

.
├── lib/
│   ├── index.js     # Host half: llm/stream tracking, billing, backfill, persistence, /usage-billing route, usage_billing tool
│   └── client.js    # Client half: main-UI entries + settings panel (window.__ModuleLoader__ bundle, build-free)
├── cordis.patch.yml # Bundle patch declaring the mount row (dsh.bundle.patch mechanism)
├── package.json     # exports ("." / "./client" / "./cordis.patch.yml") + dsh.client / dsh.bundle declarations
├── PUBLISH.md       # Publishing guide (GitHub / npm / install)
├── LICENSE
└── README.md

FAQ

• Doubled stats: older versions rebuilt without clearing first; since v0.2.0 a schemaVersion migration marker triggers a single clean rebuild on restart.
• Panel not showing: the client bundle is discovered by the deployment's clientModules service; restart the app and refresh the page after first install.
• Two instances at once: the stats file is a shared resource and concurrent writes overwrite each other — keep a single instance.
• Overwritten by upgrades: redeploying the app directory overwrites built-in patch lines and package files; re-run the install step.
• dsh version compatibility: verified against 0.1.2-alpha.1 through 0.1.6-alpha.2 (since 0.1.6 sessions.open is gone; session navigation automatically uses uiWorkspace.openSession with a fallback for older runtimes — no version-specific install needed).

License

MIT