astral-sh/ruff vs crablang/crab
astral-sh/ruff shows stronger signals overall
As of June 2026, ruff shows healthier maintenance signals than crab. ruff rates Healthy overall while crab rates Mixed. ruff was committed to today with 21+ active contributors, while crab last saw a commit 1 year ago with 25+ active contributors. ruff is MIT-licensed while crab is Other-licensed. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
astral-sh/ruff →
Healthy across the board
Permissive license, no critical CVEs, actively maintained — safe to depend on.
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ✓Last commit today
- ✓21+ active contributors
- ✓Distributed ownership (top contributor 35% of recent commits)
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against OpenSSF Scorecard
crablang/crab →
Stale — last commit 2y ago
non-standard license (Other); last commit was 2y ago
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Stale — last commit 2y ago
- ⚠Non-standard license (Other) — review terms
- ✓25+ active contributors
- ✓Distributed ownership (top contributor 25% of recent commits)
- ✓Other licensed
- ✓CI configured
- ✓Tests present
What would improve this?
- →Use as dependency Concerns → Mixed if: clarify license terms
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| ruff | crab | |
|---|---|---|
| Stars | 48,249 | 5,091 |
| Last commit | today | 1y ago |
| License | MIT | Other |
| Open issues | 2,036 | 4 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 100% | 12% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Mixed signals |
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