58

/ 100

GradeF

Early-stage engineering. The fastest wins are test coverage and CI.

Higher than 42% of 5,156 graded repos

The math library of Lean 4

Lean4,353Apache-2.014d ago

A low grade is a to-do list, not a judgment of your code

Most gaps here are documentation, tests, and setup, not the code itself. Closing your top 3 gaps alone would lift this repo to B (83).

See your top fixes
Now
F
58
Potential
B
83

Top fixes

Highest-impact changes first, ranked by point weight

11 to address
  1. 1
    Tests18pt

    Add automated tests. They prove the code works and give contributors confidence to make changes.

  2. 2
    CI/CD14pt

    Add a step like `run: npm test`, `run: pytest`, or `run: tox` to your workflow file.

  3. 3
    CI/CD14pt

    Add a lint step to catch style issues automatically.

  4. 4
    CI/CD14pt

    Add `tsc --noEmit`, `mypy`, or `cargo check` to catch type errors before they merge.

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Scorecard

Every check, grouped by category and sorted worst-first

Documentation

94

Contributing guide5pt77

CONTRIBUTING guide found.

Install and run instructions9pt90

README documents how to install the project.

README12pt100

README is present.

License6pt100

Licensed under Apache-2.0.

Engineering

31

Tests18pt0

No tests detected anywhere in the repository.

→ Add automated tests. They prove the code works and give contributors confidence to make changes.

Linting and formatting5pt0

No linter or formatter config found.

→ Add a linter config such as .eslintrc.json, .prettierrc, ruff.toml, or .golangci.yml to enforce consistent code style.

Reproducibility6pt22

No dependency lockfile found (−70 pts).

→ Commit the lockfile for this project's package manager so installs produce the same dependency versions everywhere.

CI/CD14pt57

CI is configured (.github/workflows/build_fork.yml).

Issue and PR templates6pt100

Issue or PR templates present.

Project health

68

Dependency manifest6pt0

No dependency manifest detected at root.

→ Add a manifest (package.json, pyproject.toml, Cargo.toml, go.mod, etc.) so others can install dependencies in one command.

Repository metadata5pt100

Repository has a description.

Activity5pt100

Actively maintained (pushed within the last month).

Housekeeping3pt100

.gitignore present.

Repository health signals

Activity, community, and responsiveness at scan time

Activity

  • 586 / 2446
    Commits (30d / 90d)
  • 1,792
    Forks
  • 32
    Releaseslatest 6mo ago

Community

  • 87% - Good
    Community health
  • 21 bus factor
    authors own >50% of commits
  • 4,353
    Watchers

Responsiveness

  • 1d 21h
    Median issue response
  • 3d 20h
    Median PR merge time
  • 2,985
    Open issues
Repository files31 root entries
  • .devcontainer
    Good: Environment pinned via .devcontainer/Dockerfile.
  • .docker
  • .github
    Good: CONTRIBUTING guide found.
    Issue: CONTRIBUTING guide contents could not be read (−28 pts vs a readable file).Fix: Move the file to the repo root or docs/CONTRIBUTING.md so its setup, style, test, and PR sections can be graded.
    Good: CI is configured (.github/workflows/build_fork.yml).
    Good: Dependabot configured for github-actions.
    Good: Issue or PR templates present.
  • .vscode
  • Archive
  • Cache
    Good: Security policy present.
  • Counterexamples
  • docs
  • DownstreamTest
  • Mathlib
  • MathlibTest
  • scripts
  • Wanted
  • widget
  • .git-blame-ignore-revs
  • .gitignore
    Good: .gitignore present.
  • .pre-commit-config.yaml
  • Archive.lean
  • bors.toml
  • CITATION.md
  • CODE_OF_CONDUCT.md
    Good: Code of conduct present.
  • Counterexamples.lean
  • docs.lean
  • lake-manifest.json
  • lakefile.lean
  • lean-toolchain
  • LICENSE
    Good: Licensed under Apache-2.0.
  • Mathlib.lean
  • 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.
  • SECURITY.md
  • Wanted.lean
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