dsh-usage-chart

A usage, cost, and account-balance dashboard for DeepSeek Harness Web.

简体中文 · Report an issue · Changelog (EN) · 更新日志（中文）

Interface preview: light English on the left and dark Simplified Chinese on the right. Both variants follow the DSH theme and in-app language setting.

Light theme · English

Dark theme · 简体中文

Both screenshots use fictional demo data only. They contain no real session content, token counts, costs, balances, or API keys.

The plugin adds a compact indicator below the conversation composer. It shows input/output tokens, cache-hit ratio, estimated cost, active model, a multi-segment context-pressure bar (system/tools/messages breakdown, v1.1.0), and DeepSeek account balance. Click it to open a zero-dependency SVG dashboard with per-turn usage history — including a cost view (every bar shows its own cost value, not just the current round), a duration overlay, anomaly markers, an explainer tooltip (tokens + cost + model + billing tier + duration/TTFT/TPS + user input source attribution: human/agent/continuation, v1.1.0 + end reason), horizontally scrollable per-round bars (all rounds, fixed slim bar width, auto-scroll to latest), a dedicated Context & Compaction Diagnostics section (system/tools/messages token composition, compaction timeline, freed tokens, summarize cost, context occupancy suggestions, v1.1.0), a dismissible ≈ ¥/$0.00xx badge on each assistant message, peak/off-peak tiered billing with a live red/green billing-tier tag in the panel (red = peak, green = off-peak, v1.0.1), and official dual-currency pricing (CNY from the Chinese pricing page, USD from the English pricing page — no FX conversion, v1.0.1).

▸ Input 12.4M · Output 86.2K · Hit 72% · Cost ≈$0.042 / ≈¥0.284 · demo-model · Balance --

Click ▸ to open the dashboard panel:

• Session usage summary — Input (uncached/cached), output, cache-hit percentage, and context occupancy (derived from official adapter tokenUsage / contextPressure projections).
• Context breakdown & compaction diagnostics (v1.1.0) — Official contextBreakdown projection breakdown (System prompt / Tools schema / Message history token counts and percentage with a 3-segment color bar, annotated as heuristic approximations); Host folds compaction/* events (which round was compacted, how many tokens were freed, model used, and summarize call cost); provides proactive suggestions (≥75% / ≥90% occupancy) to start a new session or reduce large file injections.
• Cost estimation — Estimated from official list prices (CNY/USD dual-currency per 1M tokens, peak/off-peak tiers) with verified source date; supports user override via pricing.json; unpriced models are explicitly tagged.
• Peak / off-peak tiered billing (v1.0.1) — Peak hours (Beijing time Monday–Friday 09:00–12:00 and 14:00–18:00, UTC 01:00–04:00 and 06:00–10:00) billed at 2× the off-peak rate; all other hours and weekends billed at off-peak rates; rounds bill automatically based on start time (or conservative peak if unknown); live red/green tag in the panel header.
• Official dual-currency list pricing (v1.0.1) — Builtin official CNY and USD prices directly used according to the active display currency — no FX conversion applied to costs (matching official billing); "Refresh rate" updates only the informational "1 USD ≈ X CNY" reference note.
• Multi-currency display (v0.3 / v1.0.1) — One-click toggle between USD and CNY (persisted in localStorage); indicator, panel, chart, and badges all follow.
• Per-round usage & source attribution (v1.1.0) — "Total / Composition / Cost" view modes; cost mode shows each bar's monetary amount; duration line overlay; anomaly marker chips on cost spikes; cache hit miniature ticks; hover explainer card with full round metrics + user input source attribution: human/agent/continuation; horizontal scroll for full session history.
• Cost badge — Dismissible ≈ ¥/$0.00xx badge rendered at the bottom of each assistant message.
• Multi-segment context pressure bar (v1.1.0) — Slim bar in the composer dock indicating total context occupancy from green to red, segmented by System (blue), Tools (amber), and Messages (green) with hover percentages.
• Account balance — Real-time balance queried via official DeepSeek API (proxied securely through Host, API key never exposed to browser).
• Bilingual (ZH / EN) — Automatically follows DSH in-app language setting, with runtime switching between zh and en.

Data sources

Tech stack

• Language: TypeScript source, compiled to DSH loadable JavaScript bundles
• Framework: Cordis plugin model + React 18
• Build: esbuild (Host half = Node ESM; Client half = browser factory bundle matching DSH Web PLATFORM_MODULES)
• Visualization: Zero-dependency handcrafted SVG (matches platform rendering, minimal footprint, ultra-stable)

Install

Prerequisites: DeepSeek Harness ≥ 0.1.0-rc.6 · Node.js ≥ 20 · pnpm on PATH (dsh plugin forwards installs to pnpm).

If you get dsh: command not found (or PowerShell The term 'dsh' is not recognized…), you ran npx @deepseek-ai/dsh transiently — see FAQ item 1 (install globally, or prefix commands with npx --yes @deepseek-ai/dsh).

Option 1: npm registry (recommended, prebuilt — no build tooling needed)

dsh plugin --profile web add dsh-usage-chart   # installs and registers the profile plugin layer
dsh web --profile web                          # starts DSH Web (stop it first if already running)

To update (upgrade to a new version): pnpm may print Already up to date when already installed — use an explicit version (recommended) or remove then re-add:

# Option ①: pin the target version explicitly
dsh plugin --profile web add dsh-usage-chart@1.1.2
# Option ②: remove, then re-add (back to latest)
dsh plugin --profile web remove dsh-usage-chart
dsh plugin --profile web add dsh-usage-chart

Then restart DSH Web.

⚠️ Restarting the dsh web process is required after any upgrade. The Host caches plugin code in memory (no hot reload): new routes (e.g. /pricing, /meta, /rate) are only served after a restart. See the Changelog.

Option 2: install from GitHub (source build)

dsh plugin --profile web add github:Max-Samson/dsh-usage-chart#<commit-sha>

Git installs run the package prepare script (node build.mjs) to build from source. pnpm ≥ 10 blocks prepare scripts by default — allow this package in the profile's pnpm-workspace.yaml, then re-run:

allowBuilds:
  dsh-usage-chart: true

Option 3: local directory (development)

git clone https://github.com/Max-Samson/dsh-usage-chart.git
cd dsh-usage-chart
npm ci && npm run build
dsh plugin --profile web add "$PWD"   # links the current checkout
dsh web --profile web

Verify the install

1. The composed profile should contain the plugin row:

   dsh --profile web --dump-config | grep -A4 'id: dsh-usage-chart'
   

2. Open DSH Web and enter any existing session: the "Usage" indicator (tokens / cost / model) appears below the composer, with the account balance on the right; click ▸ to open the dashboard.

Balance query configuration

The balance query needs a DeepSeek API key, resolved per request in this order (no restart needed):

1. DSH Web settings (recommended, requires plugin ≥ 0.1.1): configure the DeepSeek API key under Settings → Models. The plugin reads the same key through the DSH credentials service (.credentials.yaml user layer); no extra setup is required.
2. Environment variable: DEEPSEEK_API_KEY=sk-... before starting dsh web (the credentials service's env layer resolves it the same way).
3. Plugin config: override config.apiKey in the profile's cordis.patch.yml (stored in plain text on disk — only recommended for a protected local profile):

- insert:
    - id: dsh-usage-chart
      name: dsh-usage-chart
      config:
        apiKey: 'sk-...'        # empty falls back to web settings / env variable
        baseUrl: 'https://api.deepseek.com'
        # pricingFile: '/path/to/pricing.json'   # optional: price override file
        # currency: 'cny'        # optional (v0.3): 'usd' (default) | 'cny'
        # cnyPerUsd: 6.76        # optional (v0.3): FX rate for note display
        # fxUrl: 'https://open.er-api.com/v6/latest/USD'   # optional (v0.3): custom live rate source

The key stays in the Host process and is never sent to the browser.

Price overrides (optional, v0.2+ / v1.0.1 dual-currency, tiered)

Costs are resolved with priority user override file > builtin list price > fallback estimate (prices are resolved only on the Host; the client consumes the /dsh-usage-chart/pricing snapshot — a single source of truth, ADR 2). The default override file is $DSH_HOME/data/dsh-usage-chart/pricing.json (or ~/.dsh/... without DSH_HOME); both flat and { "models": { … } } shapes are accepted and changes are picked up live:

{
  "deepseek-v4-flash": {
    "offPeak": {
      "cny": { "cacheMissInput": 1.5, "cacheHitInput": 0.05, "output": 4.5 },
      "usd": { "cacheMissInput": 0.22, "cacheHitInput": 0.007, "output": 0.66 }
    },
    "peak": {
      "cny": { "cacheMissInput": 3.0, "cacheHitInput": 0.10, "output": 9.0 },
      "usd": { "cacheMissInput": 0.44, "cacheHitInput": 0.014, "output": 1.32 }
    },
    "verifiedAt": 1755100800000
  }
}

Unit prices are dual-currency (CNY + USD) per 1M tokens: peak covers peak hours (Beijing time Monday–Friday 09:00–12:00 and 14:00–18:00, charged at 2×), offPeak covers the rest (including weekends). Unpriced models are explicitly marked "Unpriced model" in the UI.

Display currency and live FX rate (v0.3+ / v1.0.1 official dual-currency)

Costs are computed with the official list price of the selected currency (CNY quote from the Chinese pricing page, USD quote from the English pricing page — no FX conversion, consistent with the official bill). The cost section has a one-click CNY/USD toggle (remembered in the browser); the indicator, panel, chart and badge all follow it. config.cnyPerUsd (default 6.76) and the "Refresh rate" button (via Host /dsh-usage-chart/rate proxy) are used only for the informational "1 USD ≈ X CNY" note:

• Multi-source fallback: when the custom source (config.fxUrl) is unreachable, a built-in fallback source (frankfurter.dev) is tried;
• Offline resilience: the last successful rate is persisted, so a refresh while offline keeps the last real rate instead of the fixed default;
• Config distribution: the Host /dsh-usage-chart/meta route sends the display currency and rate config to the client.

Uninstall

dsh plugin --profile web remove dsh-usage-chart   # removes the dependency and de-registers the layer
dsh web --profile web                             # restart; indicator and panel disappear

remove also cleans the package out of node_modules and dsh.profile.bundles (no leftovers).

FAQ

Q: dsh is not found (command not found / PowerShell The term 'dsh' is not recognized)? A: npx @deepseek-ai/dsh runs transiently and installs no global command. Run npm install -g @deepseek-ai/dsh and open a new terminal, or prefix commands with npx --yes @deepseek-ai/dsh .... Missing pnpm is the same: npm install -g pnpm.

Q: Install shows WARN missing peer react@^18.2.0? A: Harmless — react is provided by the DSH Web platform in the browser; the profile does not need it. Plugin ≥ 0.1.1 marks react as an optional peer.

Q: The balance still shows – / "not configured" after setting the API key in the web UI? A: Make sure the plugin is ≥ 0.1.1, then restart dsh web. As a stopgap, set DEEPSEEK_API_KEY or config.apiKey.

Q: add reports dsh-usage-chart is not in the npm registry? A: Use "Option 3: local directory" to test, or wait for the maintainer to publish.

Development

git clone https://github.com/Max-Samson/dsh-usage-chart.git
cd dsh-usage-chart
npm ci
npm run verify       # typecheck + build + node:test
npm pack --dry-run   # check package tarball

Visual probe scripts (optional)

scripts/ provides playwright-core based probes targeting a running DSH Web instance (http://127.0.0.1:3080 by default):

node scripts/shot.mjs          # Take collapsed/expanded screenshots
node scripts/probe-panel.mjs   # Test panel container clipping
node scripts/probe-popover.mjs # Test popover bounds and toggle
node scripts/verify-render.mjs # Full render verification (light/dark themes, ZH/EN)

Maintainer releases

For the first release, complete npm account verification and run npm publish --access public locally. Once the package exists on npm, configure Trusted Publishing for this repository. Subsequent GitHub Releases publish new versions through the workflow.

1. Ensure package.json and CHANGELOG.md versions match and run npm run verify.
2. Create v<version> GitHub Release.
3. release.yml publishes the prebuilt package via npm Trusted Publishing with provenance.

Plugin architecture

dsh-usage-chart/
├── package.json          # dsh.bundle (install layer) + dsh.client (browser half) + exports["./client"]
├── cordis.patch.yml      # Plugin insertion config (config.apiKey / baseUrl / pricingFile / currency…)
├── build.mjs             # esbuild dual outputs (+ client pure test bundle) + tsc type defs (lib/types)
├── src/
│   ├── index.ts          # Host half: /balance proxy + /usage round fold + /pricing snapshot
│   │                     #          + /meta currency config + /rate live FX proxy
│   ├── pricing/
│   │   ├── calc.ts       # Pure shared pricing math (dual-currency, peak/off-peak)
│   │   ├── source.ts     # PricingSource seam: builtin list prices + pricing.json file adapter
│   │   └── resolve.ts    # PricingResolver: user file > builtin > fallback
│   ├── usage/
│   │   ├── rounds.ts     # RoundFold: duration/TTFT/TPS/model/source attribution/end reason/cost
│   │   └── compactions.ts # CompactionFold: compaction range/freed tokens/summarize dual-currency cost
│   └── client/
│       ├── index.ts      # Client entry: registers composer.dock + assistant-actions slots
│       ├── UsageIndicator.tsx  # Dock indicator line (with 3-segment colored pressure bar)
│       ├── UsagePanel.tsx      # Visual dashboard panel composition root
│       ├── charts.tsx          # Zero-dependency SVG/HTML primitives (bars / legends)
│       ├── chart/RoundBars.tsx # Deep module round bar chart (3 modes + duration line + anomaly chip + source)
│       ├── rounds/             # observed.ts / history.ts / types.ts
│       ├── diagnose/
│       │   ├── anomaly.ts      # Cost anomaly detector (shared pure module)
│       │   └── context.ts      # ContextReport: breakdown / compaction stats / suggestions
│       ├── badge/CostBadge.tsx # Assistant message cost badge
│       ├── pricing-api.ts      # usePricing: /pricing snapshot consumer
│       ├── currency.ts         # Currency store (/meta config + switch + /rate refresh)
│       ├── balance.ts          # Balance query hook (proxied through Host)
│       └── styles.ts           # Injected CSS (<style data-plugin>)
└── types/                # Vendored minimal type declarations

Data and security boundaries

• Token and context data come from the active DSH session projections; per-round chart reads the session log and falls back to page-observed deltas if unavailable.
• Costs are estimated based on official list prices (user-overridable via pricing.json); price resolution happens only on the Host.
• Currency and rates: /meta delivers display config; /rate proxies live FX rates via the Host (browser never directly contacts external rate providers); rate URLs require HTTPS (loopback HTTP allowed for local testing).
• Balance is queried via the same-origin Host proxy (direct browser requests have CORS and key-exposure risks).
• Host routes only accept same-origin GET requests and set no-store on JSON responses; the plugin never sends the API key to the browser.

Compatibility

Community and open source

• Contributing
• Code of Conduct
• Support
• Security reporting
• Third-party notices

License

MIT