Claude Code Dev Tools

Essential toolkit for Claude Code CLI users - track usage, manage sessions, and optimize costs.

Features

Usage Tracking

Monitor your Claude Code usage in real-time from the VSCode status bar.

API Mode (pay-per-token billing):

• Token counts and estimated costs from local session files
• Toggle between session and today's usage

Subscription Mode (Pro/Max plans):

• Real-time usage limits from Anthropic's API (accurate across all devices)
• 5-hour and 7-day windows with exact reset times
• Optional "Today's Tokens" view for cost estimation

Multi-Account Pool

Manage multiple Claude subscription accounts and automatically switch when approaching limits.

• Monitor usage across all accounts
• Get prompted to switch at configurable threshold (default 90%)
• Auto-switch at 100% if alternative available
• Per-account usage cards in tooltip

Wake-up Scheduler

Pre-warm your 5-hour usage window before you start work (Subscription mode).

• Schedule daily wake-up times
• Multi-account support: wakes all accounts simultaneously via API
• Handles system sleep: catches up on missed wake-ups when Mac wakes
• Cost: ~$0.01 per account per wake-up (using Haiku)

Installation

1. Search for "Claude Code Dev Tools" in VSCode Extensions
2. Click Install

Prerequisites: Claude Code CLI installed and authenticated.

Quick Start

The extension adds a status bar item showing your current usage:

• API Mode: $(database) 45.2K tokens or $(currency-dollar) $0.0234
• Subscription Mode: $(clock) 2h 34m | 65% or $(database) 28.4K tokens

Click to cycle display modes. Hover for detailed breakdown.

Commands (Cmd+Shift+P)

Configuration

Key Settings

{
  "claudeDevTools.authMode": "auto",           // "auto", "api", or "subscription"
  "claudeDevTools.accountPool.enabled": false, // Enable multi-account pool
  "claudeDevTools.accountPool.threshold": 90,  // Switch prompt threshold (%)
  "claudeDevTools.wakeup.enabled": false,      // Enable wake-up scheduler
  "claudeDevTools.wakeup.times": ["06:00", "11:00", "16:00", "21:00"]  // Wake-up times (HH:MM)
}

Multi-Account Setup

1. Enable: Set claudeDevTools.accountPool.enabled to true
2. Log in to accounts using Claude Code CLI - the extension auto-detects new credentials
3. Label each account when prompted

Note: Restart Claude Code CLI after switching accounts.

Wake-up Setup

1. Enable: Set claudeDevTools.wakeup.enabled to true
2. Set your preferred times: claudeDevTools.wakeup.times
3. Keep VSCode running (can be in background)

The scheduler polls every minute and handles system sleep gracefully - when VSCode resumes, it detects missed executions and runs immediately.

macOS: Wake from Sleep

The extension catches up on missed wake-ups when your Mac wakes, but does not wake it from sleep. To wake your Mac automatically:

1. Open Terminal
2. Run: sudo pmset repeat wake MTWRFSU 06:00:00
   • Replace 06:00:00 with your wake-up time
   • MTWRFSU = every day (Mon-Sun)
3. Enter your password when prompted
4. Verify: pmset -g sched

Managing wake schedules:

• List all: pmset -g sched
• Remove all repeating: sudo pmset repeat cancel
• Remove one-time by index: sudo pmset schedule cancel wake 0

Alternative: System Settings → Battery → Options → Schedule → Set "Start up or wake"

Authentication Mode

The extension auto-detects your billing mode:

1. VSCode setting (claudeDevTools.authMode)
2. Environment variables (CLAUDE_CODE_USE_FOUNDRY or ANTHROPIC_API_KEY)
3. OAuth credentials (subscription)
4. API key

Tip: If launched from GUI (Dock/Finder), VSCode can't see terminal environment variables. Either launch from terminal (code .) or set authMode manually.

Troubleshooting

License

MIT