Vibe Check Your Code — Analyze the ratio of human vs AI-generated contributions in your repository.
vibeloc (Vibe LOC) analyzes your git history to quantify how much of your codebase was written by humans versus AI assistants like Codex, Claude Code, GitHub Copilot, Droid, and more.
Perfect for:
- 📊 Metrics teams tracking AI adoption
- 🔍 Tech leads auditing code authorship
- 🎯 Open source maintainers understanding contribution patterns
- 💡 Curious developers seeing their "vibe rate"
npx vibeloc@latest /path/to/your/repoOr install globally:
npm install -g vibeloc
vibeloc /path/to/your/repoAnalyzing git history in: /your/repo
=== Human ===
┌─────────────────────────────────────────────┬──────────┬────────────┐
│ Email │ Commits │ Lines │
├─────────────────────────────────────────────┼──────────┼────────────┤
│ john@example.com │ 142 │ 58934 │
│ jane@company.com │ 89 │ 32100 │
└─────────────────────────────────────────────┴──────────┴────────────┘
Total: 2 contributors, 91034 lines
=== AI ===
┌─────────────────────────┬─────────────────────────┬──────────┬────────────┐
│ Agent │ Model │ Commits │ Lines │
├─────────────────────────┼─────────────────────────┼──────────┼────────────┤
│ Claude Code │ * │ 45 │ 28450 │
│ │ Claude Opus 4.6 │ 42 │ 27100 │
│ │ Claude Sonnet 4.6 │ 3 │ 1350 │
├─────────────────────────┼─────────────────────────┼──────────┼────────────┤
│ Droid │ * │ 28 │ 15420 │
├─────────────────────────┼─────────────────────────┼──────────┼────────────┤
│ GitHub Copilot │ * │ 12 │ 4890 │
└─────────────────────────┴─────────────────────────┴──────────┴────────────┘
Total: 3 AI contributors, 48760 lines
=== Human + AI ===
┌────────────────────┬────────────────────┬────────────────────┬────────┬──────────┐
│ Human Email │ Agent │ Model │ Commi… │ Lines │
├────────────────────┼────────────────────┼────────────────────┼────────┼──────────┤
│ john@example.com │ Claude Code │ * │ 45 │ 28450 │
│ │ │ Claude Opus 4.6 │ 42 │ 27100 │
│ │ │ Claude Sonnet 4.6 │ 3 │ 1350 │
└────────────────────┴────────────────────┴────────────────────┴────────┴──────────┘
Total: 1 human+AI pairs, 28450 lines
=== Vibe Rate (AI / Project Human LOC) ===
┌─────────────────────────────────────────────┬───────────────┐
│ Email │ Vibe Rate │
├─────────────────────────────────────────────┼───────────────┤
│ * │ 53.6% │
├─────────────────────────────────────────────┼───────────────┤
│ john@example.com │ 48.3% │
├─────────────────────────────────────────────┼───────────────┤
│ jane@company.com │ 63.7% │
└─────────────────────────────────────────────┴───────────────┘
Human-attributed LOC is split across the human participants in each commit. AI lines remain full assistant-attributed totals, so Vibe Rate can exceed 100% in heavily assisted histories.
- 🤖 AI Agent Detection — Recognizes Codex, Claude Code, GitHub Copilot, Factory Droid, Google Jules
- 📈 Model-Level Stats — Drill down into specific AI models (e.g., Claude Opus vs Sonnet)
- 👥 Human + AI Pairs — See which humans work with which AI assistants
- 📊 Vibe Rate — Calculate AI assistance as
AI lines / project human LOC
| Agent | Detection Method |
|---|---|
| Codex | codex@openai.com, OpenAI Codex, Codex |
| Claude Code | @anthropic.com emails, claude in name |
| GitHub Copilot | copilot@users.noreply.github.com |
| Factory Droid | factory-droid in email/name |
| Google Jules | google-labs-jules in email/name |
Licensed under Apache-2.0.