dsh-session-cost-live

Show the live cost of the current session — in CNY or USD — right next to the token-usage chip at the bottom of the DeepSeek Harness composer.

Token counts are already in the shipped chip; this plugin prices them.

Features

• Session total, subagents included. The chip prices the current Session's own log plus every descendant Session the agent spawned, so a delegation-heavy conversation does not under-report.
• Two official price tables, zero config. CNY (the account-billed list) and USD (the English pricing page) are built in for deepseek-flash and deepseek-v4-pro. The panel can switch display currency; the choice is remembered per browser.
• Peak / off-peak split. Official peak windows (Beijing 09:00–12:00 and 14:00–18:00, Monday–Friday) are billed at the peak rate and everything else at the off-peak rate, tracked separately.
• Exactly the billing buckets. Uncached input, cached input, cache write and output are disjoint, so the numbers line up with the provider's invoice.
• Honest about unknown models. A model with no configured rate makes the total - and the panel says the rate is not configured; it never reuses another model's price.
• Editable from the Web UI. Plugins → this bundle → Configure edits both price tables as a table: add a model, override a built-in, restore defaults. Only overrides are stored, saving applies live without restarting the plugin.
• Offline and read-only. No network calls, no telemetry; the Host half only reads session logs.

Install

dsh plugin --profile web add dsh-session-cost-live

Replace web with your profile name (for example desktop), then restart dsh web (or refresh the page). The plugin targets the DSH Web profile; it renders into the composer dock next to the shipped token-usage chip.

From source:

dsh plugin --profile web add git+https://github.com/hiyijian/dsh-session-cost-live.git

Usage

• The composer dock shows the session cost: click it for the total plus the peak-hours and off-peak billing lines (uncached input / cached input / output; zero lines are hidden), and to switch between CNY and USD.
• A session with no billed usage shows no chip.
• Configure prices at Plugins → dsh-session-cost-live → Configure. Built-in models are listed and marked; edit a rate in place, add a model with provider/model or model plus its four rates, and save. A built-in row you override can be reset; custom rows can be deleted.

Pricing currently covers the DeepSeek models. For any other route, add its entry in the same page, for example moonshotai-cn/kimi-k2.6; set Separate peak / off-peak pricing off when that provider charges a flat rate.

Advanced setups can still write the same values into the profile's cordis.patch.yml:

- id: session-cost
  name: 'dsh-session-cost-live'
  config:
    currency: CNY
    peakPricing: false
    prices:      # CNY per 1M tokens
      'moonshotai-cn/kimi-k2.6': { input: 4, cacheRead: 0.4, cacheWrite: 4, output: 16 }
    pricesUsd:   # USD per 1M tokens
      'moonshotai-cn/kimi-k2.6': { input: 0.95, cacheRead: 0.16, cacheWrite: 0, output: 4 }

How the cost is computed

• Usage comes from the committed Session log (assistant/message, with the in-flight assistant/attempt sample and the shipped tokenUsage retry replacement rule), attributed to the model route of the settled message.
• Descendant Sessions are located under <DSH_HOME>/sessions and folded with the same logic, cached by log-file version, so closed subagent Sessions are still counted.
• Money is applied in the projection's client view from the configured tables, so a price edit re-prices the session without a state migration.

Sample reconciliation output (real run, one day of logs):

$ node tools/reconcile-day.mjs
day 2026-11-06 (Asia/Shanghai), prices as shipped with this plugin

   8 root Session(s), 8 descendant Session(s)

  what each chip shows (root Session + its descendants):
    ¥14.9484  session-90d20aed-…  (standard)  +4 descendant(s)
    ¥6.9516   session-7403ddd7-…  (standard)  +2 descendant(s)
    ¥5.2839   session-c2af9d0a-…  (standard)  +2 descendant(s)
  …

  TOTAL ¥29.73  (sum of every Session's own cost = the platform bill)

tools/reconcile-day.mjs replays every local session log through the plugin's exact fold and price table. It reads logs only; it never calls a provider.

Permissions and privacy

• Reads session logs under $DSH_HOME/sessions (read-only) to price descendant Sessions and to run the reconciliation tool.
• Registers one Host session-projection unit, one composer-dock entry, and the configuration page for this bundle.
• Writes nothing except this plugin's own configuration when you press Save in its configuration page.
• No network access at runtime.

Compatibility

• DeepSeek Harness >=0.2.2-rc.1 <0.3.0-0 (tested on 0.2.2-rc.1).
• Web profile; platform-independent (Windows, macOS, Linux).
• Requires the shipped composer (conversation.composer.dock slot) and the session-projection registry.

Category

Models & Reasoning — cost tracking for model usage.

Development

node --check index.js
node --check client.js
node test/host-fold.test.mjs

License

MIT © 2026 hiyijian