Copilot Attribution Tracker

A VS Code extension that detects, tracks, and reports Copilot-generated vs human-written code with line-level attribution, gutter icons, a live dashboard, and server-side reporting on commits.

Features

Architecture

src/
├── extension.ts       Main entry point – wires all components together
├── types.ts           Shared TypeScript interfaces
├── classifier.ts      Multi-signal AI/human heuristic classifier
├── lineTracker.ts     Per-file line attribution state machine
├── visualizer.ts      Gutter decorations & status bar
├── dashboard.ts       Webview dashboard panel
├── gitIntegration.ts  Pre-commit hook & server reporting
├── persistence.ts     Load/save attribution to .vscode/copilot-attribution.json
└── test/
    ├── classifier.test.ts
    └── lineTracker.test.ts
icons/
├── ai.svg
├── human.svg
├── modified.svg
└── uncertain.svg

Getting Started

Prerequisites

• Node.js 18+
• VS Code 1.90+

Install & Run

npm install
npm run compile

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

Package as .vsix

npx vsce package
code --install-extension copilot-attribution-tracker-0.1.0.vsix

Configuration

Commands

Classifier Signals

A combined score ≥ 0.6 → AI. 0.3–0.6 → Uncertain. < 0.3 → Human.

Development

npm run watch     # Incremental TypeScript compilation
npm test          # Run unit tests
npm run lint      # ESLint

Server API

On commit the extension POSTs a CommitAttributionReport JSON payload to your configured endpoint:

{
  "commitHash": "abc1234",
  "timestamp": 1710000000000,
  "repository": "my-repo",
  "branch": "main",
  "author": "dev@example.com",
  "files": [...],
  "totals": {
    "aiLines": 120,
    "humanLines": 80,
    "modifiedAILines": 12,
    "totalLines": 200,
    "aiPercentage": 60.0
  }
}

See src/types.ts for the full schema.

vs-code-annotator