AI Insights — Token Tracker for VS Code

Track token usage, costs, and AI metrics across GitHub Copilot, Antigravity, and Claude Code — all from your VS Code status bar.

All data is read from local session logs — nothing leaves your machine.

Features

📊 Real-time Token Tracking

Displays current day and 30-day token usage directly in the VS Code status bar.

🤖 Multi-Provider Support

Track usage across three AI coding assistants simultaneously:

📈 Dashboard Views

• Main Dashboard — Token totals, cost estimates, provider breakdown, model usage
• Interactive Charts — Daily usage bars, stacked model breakdown, provider doughnut
• Diagnostics — System info, session file discovery, cache stats, JSON export

💰 Cost Estimation

Per-model pricing for 30+ models across OpenAI, Anthropic, and Google:

• Cache-aware pricing (Anthropic prompt caching, OpenAI prefix matching)
• Input/output token cost breakdown
• Daily and projected yearly cost

🌍 Environmental Impact

Estimates for CO₂ emissions, water usage, and tree equivalents based on published research.

📚 Wiki Export

Export usage data as markdown for llm-wiki integration:

• Overall usage summary
• Per-provider detailed reports
• Individual session logs

Install

From Source

git clone https://github.com/your-username/ai-insights
cd ai-insights
npm install
npm run compile

Run in Development

Press F5 in VS Code to launch the Extension Development Host.

Package as VSIX

npx @vscode/vsce package

Install VSIX

code --install-extension ai-insights-0.1.0.vsix

Commands

Settings

Status Bar

The extension shows token usage in the format:

$(pulse) <today> | <30 days>

Hover for detailed breakdown including:

• Today's tokens, sessions, and cost
• Last 30 days summary
• Per-provider breakdown

Click to open the full dashboard.

Architecture

src/
├── extension.ts              # Entry point
├── types.ts                  # Shared type definitions
├── providers/
│   ├── base.ts               # Abstract provider interface
│   ├── copilot.ts            # GitHub Copilot adapter
│   ├── antigravity.ts        # Antigravity adapter
│   └── claudeCode.ts         # Claude Code adapter
├── core/
│   ├── sessionAggregator.ts  # Multi-provider data merging
│   ├── costEstimation.ts     # Model pricing & cost calc
│   ├── cacheManager.ts       # File modification tracking
│   └── environmentalImpact.ts # CO₂/water/tree estimates
├── data/
│   ├── modelPricing.json     # 30+ model pricing data
│   └── tokenEstimators.json  # Character-to-token ratios
├── webview/
│   ├── dashboard.ts          # Main dashboard webview
│   ├── charts.ts             # Chart.js visualizations
│   └── diagnostics.ts        # Diagnostic report
└── wiki/
    └── exporter.ts           # Markdown wiki export

Build Process

1. TypeScript → Strict type checking via tsc --noEmit
2. esbuild → Single-file bundle to dist/extension.js (~40KB minified)
3. vsce → Package as .vsix for distribution

# Type check
npm run compile

# Watch mode for development
npm run watch

# Production build
npm run package

# Create VSIX
npx @vscode/vsce package

Session Log Locations

GitHub Copilot

• Linux: ~/.config/Code/User/workspaceStorage/{hash}/chatSessions/
• macOS: ~/Library/Application Support/Code/User/workspaceStorage/{hash}/chatSessions/
• Windows: %APPDATA%/Code/User/workspaceStorage/{hash}/chatSessions/

Antigravity

• All platforms: ~/.gemini/antigravity/brain/{conversation-id}/.system_generated/logs/overview.txt

Claude Code

• All platforms: ~/.claude/projects/{project}/*.jsonl

Known Limitations

• Antigravity token counts are estimated from text length (no raw token API exposure)
• Copilot sessions without explicit token counts use character-based estimation
• Environmental impact uses industry average estimates, not per-provider data
• Dev Container paths may not resolve if session logs are on the host

License

MIT