anthropics / orjson Contributors

Zoomable circles (number of contributors per file): 30 days | 90 days | 6 months | past year | all time

Files with only one contributor are shown as grey.

Contributors

Recent Contributors (4)

Committed in past 6 months (a rookie = the first commit in past year)

No contributors in past 30 days.

Past 31 to 90 days (2):

mamps@anthropic.com

m@rtin.so

Past 91 to 180 days (2):

ijl@mailbox.org

yilei@anthropic.com

Historical Contributors (24)

Last contributors more than 6 months ago

andersk@mit.edu

akx@iki.fi

messense@icloud.com

30130371+cdce8p@users.noreply.github.com

nick@koston.org

em.jolibois@gmail.com

aviram.hassan@biocatch.com

roidinev@gmail.com

code@musicinmybrain.net

dremann@gmail.com

o.ermakov@cian.ru

jamadeo@gmail.com

santax@ukr.net

57402305+jakob-keller@users.noreply.github.com

dominic.lobue@gmail.com

ben@bsull.io

ben.sully88@gmail.com

vivainio@gmail.com

speaktomarco@gmail.com

dtolnay@gmail.com

paul@skopnik.me

460769+necaris@users.noreply.github.com

konstin@mailbox.org

Contributors Matrix (Per Month)

					-	2	-	-	2	1	1	1	1	-	1	1	1	-	1	1	-	1	1	1	2	-	1	1	1
commits					-	8	-	-	14	11	3	1	6	-	6	13	5	-	11	6	-	7	2	7	9	-	4	5	9
line churn					-	+1.2K -244	-	-	+1.1K -194	+3.4K -1.6K	+483 -1.8K	+206 -216	+896 -757	-	+146 -134	+1.3K -16K	+702 -915	-	+741 -587	+1.1K -688	-	+1.5K -607	+24 -11	+504 -981	+15K -431	-	+751 -547	+901 -794	+422 -184
	30d	3m	1y	all time
Martin Amps <mamps@anthropic.com>	-	7 +751 / -124	7 +751 / -124	7 +751 / -124	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Martin Amps <m@rtin.so>	-	1 +485 / -120	1 +485 / -120	1 +485 / -120	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Yilei Yang <yilei@anthropic.com>	-	-	11 +997 / -135	11 +997 / -135	-	-	-	-		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ijl <ijl@mailbox.org>	-	-	43 +6.5K / -20K	725 +301K / -260K	-	-	-	-						-				-			-					-
Benjamin A. Beasley <code@musicinmybrain.net>	-	-	-	1 +207 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-		-	-	-	-
Anders Kaseorg <andersk@mit.edu>	-	-	-	5 +57 / -30	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Zachary Dremann <dremann@gmail.com>	-	-	-	1 +21 / -7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Marc Mueller <30130371+cdce8p@users.noreply.github.com>	-	-	-	2 +39 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
o.ermakov <o.ermakov@cian.ru>	-	-	-	1 +7 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Jack Amadeo <jamadeo@gmail.com>	-	-	-	1 +19 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Nazar Kostetskyi <santax@ukr.net>	-	-	-	1 +178 / -3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Jakob Keller <57402305+jakob-keller@users.noreply.github.com>	-	-	-	1 +4 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
J. Nick Koston <nick@koston.org>	-	-	-	2 +29 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Dominic LoBue <dominic.lobue@gmail.com>	-	-	-	1 +25 / -6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Eric Jolibois <em.jolibois@gmail.com>	-	-	-	2 +211 / -16	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
messense <messense@icloud.com>	-	-	-	3 +170 / -51	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Aarni Koskela <akx@iki.fi>	-	-	-	4 +154 / -415	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ben Sully <ben@bsull.io>	-	-	-	1 +766 / -124	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ben Sully <ben.sully88@gmail.com>	-	-	-	1 +10 / -5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Ville Vainio <vivainio@gmail.com>	-	-	-	1 +4 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Aviram Hassan <aviram.hassan@biocatch.com>	-	-	-	2 +335 / -37	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Baul <roidinev@gmail.com>	-	-	-	2 +12 / -29	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Marco Ribeiro <speaktomarco@gmail.com>	-	-	-	1 +37 / -0	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
hauntsaninja	-	-	-	1 +5 / -2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
David Tolnay <dtolnay@gmail.com>	-	-	-	1 +1 / -1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Paul Skopnik <paul@skopnik.me>	-	-	-	1 +20 / -12	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Rami Chowdhury <460769+necaris@users.noreply.github.com>	-	-	-	1 +173 / -19	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
konstin <konstin@mailbox.org>	-	-	-	1 +2 / -20	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Bots Matrix (Per Month)

-

commits

-

30d

3m

1y

all time

No commits in past 30 days.

2 contributors (8 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn	File Updates (per extension)
1.	Martin Amps <mamps@anthropic.com>	2026-05-05	2026-05-05	7 (87%)	+751 / -124	rs (12), py (5), yaml (4), toml (2), md (2)
2.	Martin Amps <m@rtin.so>	2026-05-05	2026-05-05	1 (12%)	+485 / -120	rs (12), py (5), toml (2), pyi (1), lock (1)

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 90 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 90 days.

flowchart TB
    n0["m@rtin.so"]
    n1["mamps@anthropic.com"]
    n0 ---|"21"| n1
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Download: Mermaid (.mmd) (open online Mermaid editor)

- open 2D force graph
- open 3D force graph
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	Contributor 1	Contributor 2	# shared files
1.	Martin Amps <m@rtin.so>	Martin Amps <mamps@anthropic.com>	21 shared files src/deserialize/deserializer.rs src/serialize/per_type/pytorch.rs src/ffi/mod.rs src/lib.rs src/typeref.rs test/test_pytorch.py test/test_roundtrip.py Cargo.lock src/serialize/per_type/float.rs src/serialize/per_type/numpy.rs src/serialize/obtype.rs src/serialize/per_type/dict.rs test/test_api.py src/deserialize/backend/yyjson.rs src/serialize/serializer.rs Cargo.toml pyproject.toml test/test_numpy.py pysrc/orjson/__init__.pyi src/serialize/per_type/list.rs test/test_type.py

Most Connected Contributors

	Contributor	# connections	# commits
1.	Martin Amps <mamps@anthropic.com>	1	7
2.	Martin Amps <m@rtin.so>	1	1

C-median: 1.0

A half of the contributors has more than 1.0 connections, and a half has less than this number.

C-mean: 1.0

An average number of connections a contributor has with other contributors.

C-index: 1.0

There are 1.0 contributors with 1.0 or more connections.

4 contributors (33 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn
1.	ijl <ijl@mailbox.org>	2018-11-22	2026-02-02	14 (42%)	+3.5K / -1.6K
2.	Yilei Yang <yilei@anthropic.com>	2026-02-06	2026-02-08	11 (33%)	+997 / -135
3.	Martin Amps <mamps@anthropic.com>	2026-05-05	2026-05-05	7 (21%)	+751 / -124
4.	Martin Amps <m@rtin.so>	2026-05-05	2026-05-05	1 (3%)	+485 / -120

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 180 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 180 days.

flowchart TB
    n0["yilei@anthropic.com"]
    n1["ijl@mailbox.org"]
    n2["m@rtin.so"]
    n3["mamps@anthropic.com"]
    n0 ---|"23"| n1
    n2 ---|"21"| n3
    n3 ---|"19"| n0
    n3 ---|"19"| n1
    n2 ---|"18"| n0
    n2 ---|"17"| n1
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Download: Mermaid (.mmd) (open online Mermaid editor)

- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	Yilei Yang <yilei@anthropic.com>	ijl <ijl@mailbox.org>	23 shared files Cargo.lock src/serialize/per_type/float.rs src/serialize/error.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs Cargo.toml src/serialize/serializer.rs build.rs src/opt.rs test/test_parsing.py src/serialize/writer/num.rs test/test_numpy.py src/serialize/writer/json.rs test/test_roundtrip.py CHANGELOG.md pysrc/orjson/__init__.py src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs test/util.py pyproject.toml pysrc/orjson/__init__.pyi test/test_type.py
2.	Martin Amps <m@rtin.so>	Martin Amps <mamps@anthropic.com>	21 shared files Cargo.lock src/serialize/per_type/float.rs src/serialize/obtype.rs src/deserialize/backend/yyjson.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs test/test_api.py Cargo.toml src/serialize/per_type/pytorch.rs src/serialize/serializer.rs test/test_numpy.py src/typeref.rs test/test_roundtrip.py src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs pyproject.toml test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py
3.	Martin Amps <mamps@anthropic.com>	Yilei Yang <yilei@anthropic.com>	19 shared files Cargo.lock src/serialize/per_type/float.rs src/serialize/obtype.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs test/test_api.py Cargo.toml src/serialize/per_type/pytorch.rs src/serialize/serializer.rs test/test_numpy.py test/test_roundtrip.py CHANGELOG.md src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs pyproject.toml test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py
4.	Martin Amps <mamps@anthropic.com>	ijl <ijl@mailbox.org>	19 shared files Cargo.lock .github/workflows/artifact.yaml src/serialize/per_type/float.rs src/deserialize/backend/yyjson.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs Cargo.toml src/serialize/serializer.rs test/test_numpy.py src/typeref.rs test/test_roundtrip.py CHANGELOG.md src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs pyproject.toml pysrc/orjson/__init__.pyi test/test_type.py
5.	Martin Amps <m@rtin.so>	Yilei Yang <yilei@anthropic.com>	18 shared files Cargo.lock src/serialize/per_type/float.rs src/serialize/obtype.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs test/test_api.py Cargo.toml src/serialize/per_type/pytorch.rs src/serialize/serializer.rs test/test_numpy.py test/test_roundtrip.py src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs pyproject.toml test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py
6.	Martin Amps <m@rtin.so>	ijl <ijl@mailbox.org>	17 shared files Cargo.lock src/serialize/per_type/float.rs src/deserialize/backend/yyjson.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs Cargo.toml src/serialize/serializer.rs test/test_numpy.py src/typeref.rs test/test_roundtrip.py src/serialize/per_type/numpy.rs src/ffi/mod.rs src/lib.rs pyproject.toml pysrc/orjson/__init__.pyi test/test_type.py

Most Connected Contributors

	Contributor	# connections	# commits
1.	ijl <ijl@mailbox.org>	3	14
2.	Yilei Yang <yilei@anthropic.com>	3	11
3.	Martin Amps <mamps@anthropic.com>	3	7
4.	Martin Amps <m@rtin.so>	3	1

C-median: 3.0

A half of the contributors has more than 3.0 connections, and a half has less than this number.

C-mean: 3.0

An average number of connections a contributor has with other contributors.

C-index: 3.0

There are 3.0 contributors with 3.0 or more connections.

4 contributors (62 commits):

#	Contributor	First Commit	Latest Commit	Commits Count	Line Churn
1.	ijl <ijl@mailbox.org>	2018-11-22	2026-02-02	43 (69%)	+6.5K / -20K
2.	Yilei Yang <yilei@anthropic.com>	2026-02-06	2026-02-08	11 (17%)	+997 / -135
3.	Martin Amps <mamps@anthropic.com>	2026-05-05	2026-05-05	7 (11%)	+751 / -124
4.	Martin Amps <m@rtin.so>	2026-05-05	2026-05-05	1 (1%)	+485 / -120

Contributor Dependencies

A contributor dependency is detected if two contributors have changed the same files in the past 365 days.

Contributor Dependencies via Shared Files

contributor dependencies 2D graph

The number on lines shows the number of same files that both persons changed in past 365 days.

flowchart TB
    n0["yilei@anthropic.com"]
    n1["ijl@mailbox.org"]
    n2["m@rtin.so"]
    n3["mamps@anthropic.com"]
    n0 ---|"26"| n1
    n2 ---|"21"| n3
    n3 ---|"21"| n1
    n2 ---|"19"| n1
    n3 ---|"19"| n0
    n2 ---|"18"| n0
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Download: Mermaid (.mmd) (open online Mermaid editor)

- open 2D force graph
- open 3D force graph
- open 2D force graph (including all files)
- open 2D force graph (including only shared files)
- open 3D force graph (including all files)
- open 3D force graph (including only shared files)

	Contributor 1	Contributor 2	# shared files
1.	Yilei Yang <yilei@anthropic.com>	ijl <ijl@mailbox.org>	26 shared files Cargo.lock src/serialize/per_type/float.rs src/serialize/error.rs Cargo.toml src/serialize/serializer.rs src/opt.rs src/serialize/writer/num.rs src/serialize/writer/json.rs CHANGELOG.md pysrc/orjson/__init__.py src/serialize/per_type/numpy.rs src/lib.rs test/util.py pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/mod.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs test/test_api.py build.rs test/test_parsing.py test/test_numpy.py test/test_roundtrip.py src/ffi/mod.rs pyproject.toml
2.	Martin Amps <m@rtin.so>	Martin Amps <mamps@anthropic.com>	21 shared files Cargo.lock src/serialize/per_type/float.rs src/deserialize/backend/yyjson.rs Cargo.toml src/serialize/serializer.rs src/serialize/per_type/numpy.rs src/lib.rs test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs test/test_api.py src/serialize/per_type/pytorch.rs test/test_numpy.py src/typeref.rs test/test_roundtrip.py src/ffi/mod.rs pyproject.toml
3.	Martin Amps <mamps@anthropic.com>	ijl <ijl@mailbox.org>	21 shared files Cargo.lock .github/workflows/artifact.yaml src/serialize/per_type/float.rs src/deserialize/backend/yyjson.rs Cargo.toml src/serialize/serializer.rs CHANGELOG.md src/serialize/per_type/numpy.rs src/lib.rs pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs test/test_api.py test/test_numpy.py src/typeref.rs test/test_roundtrip.py src/ffi/mod.rs pyproject.toml
4.	Martin Amps <m@rtin.so>	ijl <ijl@mailbox.org>	19 shared files Cargo.lock src/serialize/per_type/float.rs src/deserialize/backend/yyjson.rs Cargo.toml src/serialize/serializer.rs src/serialize/per_type/numpy.rs src/lib.rs pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/list.rs src/deserialize/deserializer.rs src/serialize/per_type/dict.rs test/test_api.py test/test_numpy.py src/typeref.rs test/test_roundtrip.py src/ffi/mod.rs pyproject.toml
5.	Martin Amps <mamps@anthropic.com>	Yilei Yang <yilei@anthropic.com>	19 shared files Cargo.lock src/serialize/per_type/float.rs Cargo.toml src/serialize/serializer.rs CHANGELOG.md src/serialize/per_type/numpy.rs src/lib.rs test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs test/test_api.py src/serialize/per_type/pytorch.rs test/test_numpy.py test/test_roundtrip.py src/ffi/mod.rs pyproject.toml
6.	Martin Amps <m@rtin.so>	Yilei Yang <yilei@anthropic.com>	18 shared files Cargo.lock src/serialize/per_type/float.rs Cargo.toml src/serialize/serializer.rs src/serialize/per_type/numpy.rs src/lib.rs test/test_pytorch.py pysrc/orjson/__init__.pyi test/test_type.py src/serialize/obtype.rs src/serialize/per_type/list.rs src/serialize/per_type/dict.rs test/test_api.py src/serialize/per_type/pytorch.rs test/test_numpy.py test/test_roundtrip.py src/ffi/mod.rs pyproject.toml

Most Connected Contributors

	Contributor	# connections	# commits
1.	ijl <ijl@mailbox.org>	3	43
2.	Yilei Yang <yilei@anthropic.com>	3	11
3.	Martin Amps <mamps@anthropic.com>	3	7
4.	Martin Amps <m@rtin.so>	3	1

C-median: 3.0

A half of the contributors has more than 3.0 connections, and a half has less than this number.

C-mean: 3.0

An average number of connections a contributor has with other contributors.

C-index: 3.0

There are 3.0 contributors with 3.0 or more connections.

Contributors' details...