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• v1.2.0 e4288248b1

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  v1.2.0 Stable

  naomi released this 2026-02-04 20:21:00 -08:00 | 39 commits to main since this release

  Cost Management Features

  1. Historical Cost Tracking & Persistence

  • Backend (src-tauri/src/cost_tracking.rs): Full Rust implementation for tracking daily costs with persistence via Tauri's store plugin
  • Tracks: input tokens, output tokens, cost in USD, messages sent, and session counts
  • Data stored per-day with automatic aggregation for weekly/monthly periods
  • Supports cost summary generation for any number of days (7, 30, 90, etc.)
  • CSV export functionality for cost data

  2. Cost Alert System

  • Configurable thresholds: Set daily, weekly, and monthly spending limits
  • Alert triggering: When spending exceeds thresholds, alerts are generated
  • Desktop notifications: Alerts trigger the notification system with the "Cost Alert!" sound (reuses the "oh-no.mp3" sound file)
  • Alert state resets daily to prevent duplicate notifications

  3. Per-Message Cost Attribution

  • New MessageCost type (src-tauri/src/types.rs): Tracks input tokens, output tokens, and cost USD per message
  • Cost flows through the entire pipeline:
    • Rust backend calculates cost when processing assistant messages
    • Cost data included in OutputEvent emitted to frontend
    • TypeScript receives and converts snake_case to camelCase
    • Terminal lines can display cost badges

  4. Session Recording

  • Automatic session tracking (src-tauri/src/bridge_manager.rs): Each time Claude starts, a new session is recorded
  • Sessions counted in daily cost summaries
  • Enables tracking usage patterns over time

  5. Frontend Cost Display

  StatsDisplay Component (src/lib/components/StatsDisplay.svelte)

  • Historical Costs section: Collapsible panel showing:
    • Quick stats badges (Today, Week, Month costs)
    • Expanded view with detailed cost breakdown
    • Link to settings for detailed history

  CostSummary Component (src/lib/components/CostSummary.svelte)

  • Full cost management UI in the Config Sidebar:
    • Quick stats cards (Today/Week/Month)
    • Period selector (7/30/90 days)
    • Detailed summary: total cost, average daily, messages, sessions, token counts
    • Mini bar chart showing daily spending (last 14 days)
    • CSV export button
    • Alert threshold configuration UI

  6. Cost Tracking Store (src/lib/stores/costTracking.ts)

  • Svelte store managing cost tracking state
  • Methods: refresh(), getSummary(), setAlertThresholds(), exportCsv()
  • Derived store formattedCosts for display-ready values
  • Helper functions: formatCost(), formatAlertType(), getAlertMessage()
  • Automatic alert notification triggering on refresh

  7. Notification Integration

  • New notification type: NotificationType.COST_ALERT
  • Sound: Uses "oh-no.mp3" with "Cost Alert!" phrase
  • Helper method: notificationManager.notifyCostAlert()

  8. Tauri Commands (Backend API)

  • get_today_cost: Returns today's total cost
  • get_week_cost: Returns current week's total cost
  • get_month_cost: Returns current month's total cost
  • get_cost_summary: Returns detailed summary for N days
  • get_cost_alerts: Checks thresholds and returns triggered alerts
  • set_cost_alert_thresholds: Configure daily/weekly/monthly limits
  • export_cost_csv: Generate CSV export of cost data
  • record_cost: Record a cost entry (called internally)
  • record_session: Record a new session start

  9. Supporting Infrastructure

  • Tool cache analytics (src-tauri/src/tool_cache.rs): Framework for tracking potential cache hits (for future optimisation)
  • Budget status types (src-tauri/src/stats.rs): ContextWarning, BudgetStatus, BudgetType enums for frontend budget warnings
  • Conversation utilities (src/lib/utils/conversationUtils.ts): JSON sanitisation for safe IPC, summary generation helpers

  Technical Details

  Pricing Model

  Uses Claude API pricing:

  • Sonnet: $3/$15 per MTok (input/output)
  • Opus: $15/$75 per MTok
  • Haiku: $0.25/$1.25 per MTok

  Data Flow

  1. Assistant message received in wsl_bridge.rs
  2. Cost calculated using calculate_cost()
  3. Cost recorded via record_cost() command (async)
  4. MessageCost attached to OutputEvent
  5. Frontend receives event, updates conversation store
  6. costTrackingStore.refresh() called on stats updates
  7. Alerts checked and notifications triggered if thresholds exceeded

  Downloads

  • hikari-desktop-1.2.0-1.x86_64.rpm
    15 MiB

    2026-02-04 20:13:06 -08:00
  • hikari-desktop_1.2.0_amd64.AppImage
    84 MiB

    2026-02-04 20:20:57 -08:00
  • hikari-desktop_1.2.0_amd64.deb
    15 MiB

    2026-02-04 20:13:57 -08:00
  • hikari-desktop_1.2.0_x64-setup.exe
    10 MiB

    2026-02-04 20:14:20 -08:00
  • Source Code (ZIP)
  • Source Code (TAR.GZ)