Free engineering analytics from your git history — no $36K/yr subscription required.
Computes DORA metrics and team velocity from any git repository in seconds.
npm install -g git-chronicle
# or run directly:
npx git-chronicle report .# Terminal report (default, last 90 days)
git-chronicle report /path/to/repo
# Last 30 days
git-chronicle report . --days 30
# Export markdown report
git-chronicle report . --format markdown --output report.md| Metric | What it measures | Data source |
|---|---|---|
| Deployment Frequency | How often code ships | Git tags/releases |
| Lead Time for Changes | Commit → release time | Commit timestamps vs tags |
| Change Failure Rate | % reverts + hotfixes | Commit messages |
| Mean Time to Recovery | Time from failure to fix | Commit message patterns |
- Commits per contributor with feature/fix/chore breakdown
- Lines added/removed per author
- Average commit size
- High-churn files that change frequently (refactoring candidates)
- Multi-author files (coordination risk)
- Scored by: commit frequency × author count × change volume
Based on DORA 2023 State of DevOps Report thresholds:
| Band | Deploy Freq | Lead Time | CFR | MTTR |
|---|---|---|---|---|
| Elite | On-demand (≥1/day) | <1 hour | <5% | <1 hour |
| High | 1/week–1/day | <1 day | 5–10% | <1 day |
| Medium | 1/month–1/week | <1 week | 10–15% | <1 week |
| Low | <1/month | >1 week | >15% | >1 week |
Enterprise engineering intelligence platforms (LinearB, Jellyfish, Hatica) cost $36K–$92K/year. This tool costs $0, runs locally, never phones home, and produces the same core metrics from your existing git history.
Terminal output:
◆ Team Summary (last 90 days)
────────────────────────────────────────────────────────────
Total commits: 247
Active contributors: 8
Commits/day: 2.74
Commits/week: 19.2
Lines added: +14320
Lines removed: -5891
◆ DORA Metrics
────────────────────────────────────────────────────────────
Deployment Frequency [High]
12 deploys · 2.8/week
Lead Time for Changes [High]
avg 6.5 hr
Change Failure Rate [Elite]
5.0% (12 of 247 commits)
Mean Time to Recovery [High]
avg 4.2 hr