What 54 graded repositories reveal

Every repo RepoGrade scores feeds these aggregates: how quality tracks reach, age, and maintenance, and what separates the best repos from the rest.

Repositories
54
Jupyter Notebook
Median score
26
out of 100
Median stars
0
GitHub stars
Median age
3 yr
47 measured
Ship releases
15%
46 measured
Are forks
15%
47 measured
AllPythonTypeScriptJavaScriptGoJava

How the corpus scores

Each dot is a repo, colored by grade. Corpus medians divide the four quadrants. Distributions below show the same data sliced by band and popularity tier.

Quality vs popularity

Hover a region to highlight it and see counts. Toggle the X axis between stars and contributors.

X axis
median 0★med. 26HIDDEN GEMS0 · 0%EXEMPLARY22 · 81%NEEDS WORK0 · 0%VIRAL, MESSY5 · 19%02550751001101001k10k100kStars (log scale)Score

Score distribution

Repos per 10-point band, colored by grade

Score by popularity tier

Box = P25-P75, line = median, whisker = P10-P90. Colored by grade.

Group by
0204060708090100ABCDF< 10n=910-100n=4100-1kn=81k-10kn=4

GitHub stars · box = P25-P75, line = median, whisker = P10-P90

Scores climb steadily with popularity

Median score within each star tier. The grade mix hides this because most repos have few stars - but quality and reach rise together.

What top repos do that the rest don't

Average pass rate for A/B vs D/F repos, by dimension and by check. Filtered to Jupyter Notebook. Based on 46 repos.

Quality gap, by dimension

Average check pass rate across all checks in each category, for top-graded vs. bottom-graded repos.

Documentation+75pp
A/B
100%
D/F
25%

4 checks averaged

Engineering+67pp
A/B
83%
D/F
17%

6 checks averaged

Project health+57pp
A/B
100%
D/F
43%

2 checks averaged

Pass rates side by side

Each row is one check. Filled = A/B pass rate, hollow = D/F. +Npp = percentage-point gap.

D/F passA/B pass0%25%50%75%100%CI/CD+98ppContributing guide+93ppTests+80ppInstall and run instructions+77ppREADME+68ppReproducibility+68ppDependency manifest+66ppActivity+64ppLicense+61ppHousekeeping+50ppLinting and formatting+45ppIssue and PR templates+43pp

All checks

CheckA / B pass rateD / F pass rateGap
CI/CD
100%
2%
+98
Contributing guide
100%
7%
+93
Tests
100%
20%
+80
Install and run instructions
100%
23%
+77
README
100%
32%
+68
Reproducibility
100%
32%
+68
Dependency manifest
100%
34%
+66
Activity
100%
36%
+64
License
100%
39%
+61
Housekeeping
100%
50%
+50
Linting and formatting
50%
5%
+45
Issue and PR templates
50%
7%
+43

Does a better grade attract more attention?

Median traction signals per grade band. Toggle across stars, forks, watchers, open issues, and contributors.

Median traction by grade

Toggle across stars, forks, watchers, issues, contributors

Metric

How actively are repos maintained?

Release discipline and project posture signals - the upkeep story behind a grade.

Release discipline by grade

Share of repos shipping at least one tagged release, per grade band

Project posture

Fork quality penalty, archived repos, and release cadence

Quality: forks vs. original repos

Originals
16
Forks
34

Forks score -18 points lower on average (7 forks of 47 measured)

Archived (read-only)0%

0 of 47 measured

Ship releases15%

7 of 46 measured

Does age or size move the score?

Median score across how long a repo has existed and how large it is on disk.

Score by repo age

Median score across age cohorts

Score by repo size

Median score across size on disk