Claude Code Status Bar Monitor

A VS Code extension that displays real-time Claude Code usage statistics directly in your status bar.

📊 Status Bar & Tooltip

The extension automatically starts monitoring when you open VS Code. The status bar shows real-time usage with color-coded warnings based on token usage:

Reset: 03:45:12 | C: 35.9% | T: 74.4% | M: 25.5%

Status Bar Components:

• Reset: Countdown timer to session reset (HH:MM:SS)
• C: Cost usage percentage
• T: Token usage percentage
• M: Message count percentage

Color Indicators:

• ⚪ Neutral: < 75% of token limit
• 🟠 Orange: 75-89% of token limit
• 🔴 Red: ≥ 90% of token limit

Hover over the status bar to see a quick tooltip with session timing and key metrics:

Tooltip showing quick overview: session timer, token usage, cost, message count, and burn rates

🎨 Detailed Popup & Advanced Analytics

Click the status bar to open the main popup with comprehensive metrics:

Main popup view with session timer, token usage, cost tracking, and message count with visual progress bars

Main Popup includes:

• Progress bars for tokens, cost, and messages
• Percentage indicators
• Per-minute consumption rates (tokens/min, $/min, messages/min)
• Session timing information
• Token breakdown (input, output, cache creation, cache read)

Advanced Analytics - Click "More..." buttons to access detailed breakdowns:

Expanded view showing token breakdown by component, usage by model (Opus/Sonnet/Haiku), and usage by project

Extended information includes:

• Token Components: Individual counts of input, output, cache creation, and cache read tokens
• Burn Rate Analysis: Real-time token and cost consumption rates (tokens/min, $/min)
• Model Breakdown: Pie chart showing which models (Opus, Sonnet, Haiku) consumed the most tokens
• Project Breakdown: Visualization of token usage across different Claude projects

⚙️ Configuration

Simple configuration with just two settings:

1. Plan: Choose from Pro, Max5, Max20, or Custom
2. Refresh Interval: Update frequency (1-60 seconds)

VS Code Settings

{
  "claudeStatusBar.plan": "max5",              // pro, max5, max20, or custom
  "claudeStatusBar.customTokenLimit": 44000,   // Only for custom plan
  "claudeStatusBar.refreshInterval": 5          // 1-60 seconds
}

Plan Limits

Plan	Token Limit	Cost Limit	Message Limit
Pro	19,000	$18.00	250
Max5	88,000	$35.00	1,000
Max20	220,000	$140.00	2,000
Custom	User-defined	$50.00	250

Installation

Via VS Code Extension Manager

1. Open VS Code
2. Go to Extensions (Ctrl+Shift+X / Cmd+Shift+X)
3. Search for "Claude Code Status Bar Monitor"
4. Click Install

Or visit the VS Code Marketplace page

Manual Installation

npm install
npm run package
code --install-extension claude-statusbar-0.1.0.vsix

Usage & Commands

Access via Command Palette (Ctrl+Shift+P / Cmd+Shift+P):

• Claude: Show Usage Details - Open detailed metrics popup
• Claude: Set Plan to Pro - Switch to Pro plan (19k tokens)
• Claude: Set Plan to Max5 - Switch to Max5 plan (88k tokens)
• Claude: Set Plan to Max20 - Switch to Max20 plan (220k tokens)
• Claude: Set Plan to Custom - Set custom token limit
• Claude: Refresh Usage Stats - Force refresh metrics

How It Works

Data Source

Claude Code stores conversation data locally in JSONL files:

• Windows: %USERPROFILE%\.claude\projects\
• macOS/Linux: ~/.claude/projects/ or ~/.config/claude/projects/

The extension monitors these files for changes and calculates metrics in real-time.

Session Windows

Claude Code uses 5-hour rolling sessions. The extension:

1. Detects your first message timestamp
2. Calculates session expiry (5 hours later)
3. Tracks usage within the active window
4. Automatically resets when session expires

Token Calculation

What counts toward limits:

• ✅ input_tokens - Your prompts
• ✅ output_tokens - Claude's responses

What doesn't count toward token limits:

• ❌ cache_creation_input_tokens - Cache overhead
• ❌ cache_read_input_tokens - Cache hits

Note: Cache tokens ARE included in cost calculations but NOT in token limits.

Cost Calculation

Costs are calculated using model-specific pricing:

Model	Input	Output	Cache Creation	Cache Read
Opus	$15.00/M	$75.00/M	$18.75/M	$1.50/M
Sonnet	$3.00/M	$15.00/M	$3.75/M	$0.30/M
Haiku	$0.25/M	$1.25/M	$0.30/M	$0.03/M

Pricing per million tokens

Privacy

All data processing happens locally on your machine:

• ✅ No data sent to external servers
• ✅ No telemetry or analytics
• ✅ No account required
• ✅ Reads only your local Claude files

Requirements

• VS Code: 1.104.0 or higher
• Claude Code: Active installation with local conversation data
• Node.js: Only for development

Development

Building

npm install
npm run compile

Watch Mode

npm run watch

Packaging

npm run package
vsce package

Testing

npm run test

Credits & Inspiration

This project was inspired by and built upon the excellent work of:

GUI & Architecture

• yahyashareef48/claude-usage-monitor - Visual design and VS Code extension architecture
  • Status bar layout and styling
  • Webview panel implementation
  • Real-time file watching approach

Calculation Logic & Accuracy

• Maciek-roboblog/Claude-Code-Usage-Monitor - Precise usage calculations
  • Token counting methodology (excluding cache tokens from limits)
  • Cost calculation formulas with model-specific pricing
  • 5-hour rolling session window logic
  • P90-based custom plan analysis

Note: This extension combines the best of both projects - accurate calculations from Maciek's monitor with the polished GUI from Yahya's extension.

License

MIT License - see LICENSE file for details.

Support

For issues or feature requests, please visit the GitHub repository.

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Enjoy monitoring your Claude Code usage! 🚀