opencode-usage-stats

Where do all your tokens go? Find out with a real-time dashboard that tracks every token, model, and session across your OpenCode projects.

Features

• Token tracking — input, output, reasoning, and cache-read tokens per message
• Session tracking — titles, directories, timestamps, parent/child relationships
• Agent tracking — subagent types (explore, product-manager, software-architect, etc.) with per-agent token breakdowns
• Cost tracking — per-message cost as reported by the provider
• Local storage — all data stored in a single SQLite file (~/.config/opencode/usage-stats.db), no external services

Requirements

• Bun runtime (uses bun:sqlite for zero-dependency SQLite)
• OpenCode with plugin support

Installation

Add the plugin to your opencode.json:

{
  "plugin": ["@sleipi/opencode-usage-stats"]
}

Restart OpenCode to load the plugin. The plugin starts tracking immediately.

Manual installation (alternative)

git clone https://github.com/sleipi/opencode-usage-stats-plugin.git
cd opencode-usage-stats-plugin
bun install
ln -s "$(pwd)/src/plugin.ts" ~/.config/opencode/plugins/opencode-usage-stats.ts

Configuration

The plugin reads configuration from ~/.config/opencode/usage-stats.jsonc (or .json). If no config file is found, environment variables are used as fallback.

Example config file:

{
  // Start the dashboard automatically when the plugin loads (default: true)
  "dashboardEnabled": true,
  // Port for the dashboard web server (default: 3333)
  "dashboardPort": 3333
}

Environment variable fallbacks (for backward compatibility):

| Variable | Description | Default | |---|---|---| | OPENCODE_USAGE_STATS_DASHBOARD | Set to "false" to disable auto-start | true | | OPENCODE_USAGE_STATS_PORT | Dashboard port | 3333 |

Dashboard

By default the dashboard starts automatically with the plugin. To run it manually instead, disable auto-start in the config and use:

bunx @sleipi/opencode-usage-stats

Or with a custom port:

OPENCODE_USAGE_STATS_PORT=3334 bunx @sleipi/opencode-usage-stats

Opens at http://localhost:3333.

The dashboard auto-refreshes every 5 seconds and shows:

• Token summary bar (Today / This Week / This Month / Last Month)
• Session cards with token breakdown and agent details
• Cache hit percentages with explanatory tooltips

Development

See AGENTS.md for coding standards, test commands, and architecture details.

bun test tests/unit     # unit tests
bun run test:e2e        # Playwright e2e tests

License

MIT