Community Health

Community Size

7,249

Authors

1,138

Active Authors

last 2 years

616

Multi-Pub Authors

2+ publications

1.1%

Top Author Share

top 10 authors

60,561

Contributors

2,977

Active Contributors

23,105

Core Contributors

19,497

Multi-Repo

2+ repos

102,989

Participants

Publications

Avg Authors/Pub6.2

International448 (33.9%)

Cross-Institutional785 (59.5%)

Network Density0.0040

Collaboration Bridges

Keyvan Farahani

Steve Pieper

Henry Schreiner

Jean‐Christophe Fillion‐Robin

Stephen Aylward

Domain Connectors

Egon Willighagen9 fields, 25 topics

Vanessa Sochat7 fields, 19 topics

Tom Palmer6 fields, 13 topics

Matthew L. Evans6 fields, 9 topics

Christoph Steinbeck6 fields, 9 topics

Repositories

Avg Contributors/Repo7.3

International Repos0

Cross-Institutional Repos0

Network Density0.0045

Domain Connector Repos

ropensci/gigs10 fields, 43 topics

brainglobe/brainglobe-atlasapi10 fields, 32 topics

furrer-lab/abn8 fields, 18 topics

moritznegwer/friendlyclearmap-scripts8 fields, 18 topics

stivalaa/estimnetdirected7 fields, 12 topics

Publications

Author Concentration1%

Healthy (3+ authors)1043/1320 (79%)

Solo author105/1320 (8%)

At-Risk Publications (37)

Publication	Author	Year
Untitled	Michael Hirsch	-
Start Your ENGINEs: Dynamically Loadable Contemporary Crypto	Billy Bob Brumley	2019
Matplotlib: A 2D Graphics Environment	John D. Hunter	2007
Class, Caste and Gender - Women in Parliament in India	Shirin Rai	2002
Jerk-limited Real-time Trajectory Generation with Arbitrary Target States	Lars Berscheid	2021

Repositories

Portfolio Bus Factor:1

Healthy distribution1907/17538 (11%)

Single maintainer9412/17538 (54%)

At-Risk Repositories (10517)

Repository	Top %	Core
openslab-osu/datavisualizationapp	100%	1
autognc/starfish	100%	1
narimimatsumoto/fw_capon	100%	1
mlibrary/card-castle	100%	1
sg-dev/15yearssg	100%	1

Publications

Publication Trend↘

Author Consistency0.98

Avg Years Active/Author1.1

Publications by Year

2019

2020

2021

174

2022

220

2023

316

2024

314

2025

237

2026

Repositories

Commits (52 weeks)306,855

Commits (12 weeks)75,757→

Avg Contributor Consistency0.64

Avg Active Weeks/Contributor15.3

Author Retention

Year	Total	New	Ret.	Churn
2021	979	943	36	458
2022	1157	1125	32	947
2023	1526	1438	88	1069
2024	1462	1407	55	1471
2025	973	931	42	1420
2026	165	165	0	973

Overall Retention Rate2.1%

Contributor Retention

New Contributors (12mo)3,104

Retained1785

Churned34318

Retention Rate4.9%

Engagement

Citing Community

Citing Authors576,584

Citing Institutions30,015

Citing Topic Breadth

Domains4

Fields26

Subfields247

Topics3,984

Top Citing Fields

Biochemistry, Genetics and Molecular Biology69,653

Medicine50,913

Engineering39,328

Computer Science35,094

Physics and Astronomy28,699

Environmental Science24,729

Neuroscience20,073

Agricultural and Biological Sciences19,294

Materials Science15,244

Earth and Planetary Sciences13,428

Top Citing Subfields

Molecular Biology49,816

Astronomy and Astrophysics18,068

Genetics15,370

Artificial Intelligence15,335

Cognitive Neuroscience13,842

Materials Chemistry13,045

Ecology12,314

Biomedical Engineering9,717

Plant Science9,492

Computer Vision and Pattern Recognition8,954

Repository Activity

Issues Opened251,210

Issues Closed261,376

PRs Opened415,535

PRs Reviewed0

Comments657,596

Helpful Reactions63,079

Avg 0.10 reactions/comment

91304 reporters0 reviewers3347 triagers1729 support

Champions

Most Prolific Authors

Egon Willighagen

18 publications

Vanessa Sochat

11 publications

Chris T. Evelo

9 publications

High-Impact Maintainers

TensorFlower Gardener

179 citations, 343,769 stars

Qianli Scott Zhu

179 citations, 335,922 stars

Shanqing Cai

179 citations, 201,427 stars

Longest Author Careers

Egon Willighagen

24 years (2000-2023)

Andrej Šali

21 years (2003-2023)

Christoph Steinbeck

18 years (2000-2017)

Longevity Leaders

Gerald Combs

28 years, 93% consistency

Guy Harris

28 years, 76% consistency

Josh Juran

23 years, 91% consistency

Community Advocates

codecov[bot]

24341 comments, 11 reactions

dependabot[bot]

20043 comments, 6 reactions

github-actions[bot]

17647 comments, 32 reactions

Top People

Top Authors (1000)

Author	Pubs ▼	Institutions	Topics	Years
E Egon Willighagen	18	5	25	2000-2023
V Vanessa Sochat	11	3	19	2014-2022
T Thomas Donoghue	9	3	13	2019-2023
C Chris T. Evelo	9	1	15	2010-2023
V Vincent Cicirello	8	1	14	2018-2024
N Nicolas Matentzoglu	7	3	7	2022-2025
J Jordi Cabot	7	4	15	2016-2024
B Bradley Voytek	7	2	8	2019-2022
A Anubhav Jain	6	1	10	2012-2024
M Melissa Haendel	6	1	6	2022-2024
C Chris Mungall	6	1	6	2022-2024
N Nomi L. Harris	6	1	7	2022-2025
S Sierra Moxon	6	1	6	2022-2025
N Nils Gehlenborg	6	3	11	2014-2024
A Andrej Šali	5	3	11	2003-2023
M Martina Kutmon	5	1	10	2016-2023
C Christoph Steinbeck	5	4	9	2000-2017
T Tom Palmer	5	3	13	2008-2021
K Kristin A. Persson	5	2	9	2012-2023
W Will Usher	5	2	13	2017-2023

Top Contributors (1000)

Contributor	Repos	Commits ▼	Status	Consistency
Michele Simionato	1	114,268	Core	0.00
Thomas Klausner	2	76,593	Core	0.50
TensorFlower Gardener	5	59,559	Core	0.67
Axel Kohlmeyer	6	45,147	Core	0.41
Even Rouault	5	37,049	Core	0.99
Guy Harris	2	35,620	Core	0.76
textbrowser	1	32,655	Core	0.88
philippwendler	6	32,244	Core	0.67
Magnus Blåudd	6	30,238	Core	0.41
Valentin Sulzer	8	28,396	Core	0.98
Josh Juran	1	26,836	Core	0.91
Douglas Simon	5	25,258	Core	0.80
Jan Janssen	17	25,215	Core	0.92
Mauritz Sundell	6	22,974	Core	0.61
sul-devops-team	69	22,776	Core	0.92
gitjournalapp	1	22,097	Core	0.44
Thomas Robitaille	20	21,041	Core	0.64
cadair	11	20,451	Core	0.43
mardiehl	3	20,149	Core	0.89
Georgi Kodinov	6	20,047	Core	0.54