astral-sh/ruff
Grade a repo

97

/ 100

GradeA

Excellent work. The main thing left to polish is housekeeping.

Top 4% of 5,156 graded repos

An extremely fast Python linter and code formatter, written in Rust.

Documentation97
Engineering99
Health94
Rust49,847MIT9d ago

Outstanding. A score of 97/100 puts this repo in a very small tier of truly well-engineered projects.

Top fixes

Highest-impact changes first, ranked by point weight

3 to address
  1. 1
    Install and run instructions9pt

    Add a .env.example listing all required environment variables so contributors know what to set up.

  2. 2
    Reproducibility6pt

    Make sure the Renovate config is valid JSON, for example `{ "extends": ["config:recommended"] }`.

  3. 3
    Housekeeping3pt

    Remove them and add to .gitignore.

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Scorecard

Every check, grouped by category and sorted worst-first

Documentation

97

Install and run instructions9pt90

README documents how to install the project.

README12pt100

README is present.

License6pt100

Licensed under MIT.

Contributing guide5pt100

Contributing guide is detailed and thorough.

Engineering

99

Reproducibility6pt92

Lockfile present (Cargo.lock). Installs are reproducible.

Tests18pt100

Test files detected (crates/ruff/resources/test).

CI/CD14pt100

CI is configured (.github/workflows/build-binaries.yml).

Linting and formatting5pt100

Linter or formatter configured (.editorconfig).

Issue and PR templates6pt100

Issue or PR templates present.

Project health

94

Housekeeping3pt60

.gitignore present.

Dependency manifest6pt100

Dependency manifest found (Cargo.toml).

Repository metadata5pt100

Repository has a description.

Activity5pt100

Actively maintained (pushed within the last month).

Repository health signals

Activity, community, and responsiveness at scan time

Activity

  • 374 / 1532
    Commits (30d / 90d)
  • 2,454
    Forks
  • 429
    Releaseslatest 4y ago

Community

  • 87% - Good
    Community health
  • 4 bus factor
    authors own >50% of commits
  • 49,847
    Watchers

Responsiveness

  • 7h
    Median issue response
  • <1h
    Median PR merge time
  • 2,187
    Open issues
Repository files46 root entries
  • .agents
  • .cargo
  • .claude
  • .config
  • .devcontainer
  • .github
    Good: CI is configured (.github/workflows/build-binaries.yml).
    Good: Renovate config present (.github/renovate.json5).
    Good: Issue or PR templates present.
  • .vscode
  • agents
  • assets
  • changelogs
  • crates
    Good: Test files detected (crates/ruff/resources/test).
    Issue: Build artifacts or local files may be committed (crates/ty_vendored/vendor/typeshed/stdlib/venv/__init__.pyi) (−40 pts).Fix: Remove them and add to .gitignore.
  • docs
  • fuzz
  • playground
  • python
  • scripts
  • _typos.toml
  • .editorconfig
    Good: Linter or formatter configured (.editorconfig).
  • .git-blame-ignore-revs
  • .gitattributes
  • .gitignore
    Good: .gitignore present.
  • .ignore
  • .markdownlint.yaml
  • .pre-commit-config.yaml
  • .prettierignore
  • AGENTS.md
  • BREAKING_CHANGES.md
  • Cargo.lock
    Good: Lockfile present (Cargo.lock). Installs are reproducible.
  • Cargo.toml
    Good: Dependency manifest found (Cargo.toml).
  • CHANGELOG.md
  • CLAUDE.md
  • clippy.toml
  • CONTRIBUTING.md
    Good: Contributing guide is detailed and thorough.
    Good: Contributing guide includes setup/install instructions.
    Good: Contributing guide describes code style expectations.
    Good: Contributing guide explains how to run tests.
    Good: Contributing guide describes the PR/review workflow.
    Good: Contributing guide includes code examples.
  • dist-workspace.toml
  • Dockerfile
    Good: Environment pinned via Dockerfile.
  • hawk.toml
  • LICENSE
    Good: Licensed under MIT.
  • mkdocs.template.yml
  • mkdocs.yml
  • pyproject.toml
  • README.md
    Good: README is present.
    Good: README is well structured with multiple sections.
    Good: README includes screenshots or visuals. Great for first impressions.
    Good: README has code examples.
    Good: README links to a live demo or deployed app.
    Good: README includes status badges.
    Good: README documents how to install the project.
    Good: README documents how to run the project.
  • ruff.schema.json
  • rust-toolchain.toml
  • rustfmt.toml
  • ty.schema.json
  • uv.lock
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