Copilot Cost & Token Tracker
Visualise Copilot agent session token costs directly inside VS Code. The extension runs locally, reads agent debug logs from your workspace storage, and shows the latest session, a full session table, and an aggregate summary.
Features
Dashboard views
- Latest Session — live per-model breakdown of your most recent Copilot agent session; auto-refreshes while the session is active
- All Sessions — sortable table of every session in the selected window with Cost, Credits, and Cache Hit % columns; click any row to expand per-model detail inline
- Aggregate — rolled-up totals across all sessions in the selected time window, broken down by model
Cost & token details
- USD cost and AI Credits (1 credit = $0.01) totals for every session and aggregate view
- Per-model token breakdown: fresh input, cached input, cache writes, and output tokens
- Cache hit rate per model with colour-coded health indicators
- Sub-agent call detection — badges distinguish main-agent vs. sub-agent LLM calls within a session
Time filtering
- Preset time windows: 6 h, 12 h, 24 h, 48 h, 72 h, and 7 days
- Custom date-range picker to query any arbitrary period
Pricing & model coverage
- Bundled
media/pricing.json pricing table covering all major Copilot model families
- Intelligent model-key matching (prefix and substring) so minor version variants resolve correctly
- Unknown models flagged with a warning and excluded from totals rather than silently misreported
Privacy & portability
- Reads only local Copilot agent debug logs from VS Code / VS Code Insiders workspace storage
- Cross-platform support: macOS, Windows, and Linux storage paths resolved automatically
- No data leaves your machine
Requirements
- VS Code 1.119 or later, or VS Code Insiders
- Existing Copilot agent session logs in your local workspace storage
Installation
From the Marketplace
- Open the Extensions view in VS Code
- Search for
Copilot Cost & Token Tracker
- Install the extension
- Reload when prompted
From a VSIX
- Download the
.vsix file
- Open the Extensions view
- Select
... and choose Install from VSIX...
- Pick the downloaded
.vsix file
- Reload when prompted
Usage
Open the dashboard with any of these entry points:
- Status bar:
Token Cost
- Activity bar:
Token Cost Tracker
- Command Palette:
Copilot Cost & Token Tracker: Open Dashboard
Use the Time window dropdown in the dashboard to switch between 6h, 12h, 24h, 48h, 72h, and 7 days.
Commands
| Command |
Description |
Copilot Cost & Token Tracker: Open Dashboard |
Open the dashboard webview |
Privacy
- Reads only local Copilot agent debug logs.
- Does not send data to an external service.
- Unknown models are excluded from totals and flagged in the dashboard.
How It Works
The extension scans local VS Code workspace storage directories, finds Copilot agent debug-log sessions, parses the JSONL data, and computes token usage and cost totals locally.
Model Coverage
The bundled pricing table currently covers the model families used by the extension. If a model is not present in media/pricing.json, it is shown with a warning and excluded from totals.
Troubleshooting
- If the dashboard is empty, make sure you have an existing Copilot agent session and that VS Code has created workspace storage debug logs.
- If a model is missing pricing data, it will be shown with a warning and its cost will be excluded.
Development
npm install
npm run compile
npm run package
License
MIT
