Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-15 23:19 UTC

apache / arrow-go

Official Go implementation of Apache Arrow

Assembly · GoApache-2.0★ 405 stars⑂ 146 forkssince Aug 2024View on GitHub ↗

KindNetwork serviceLibraryhow this is determined

apache/arrow-go holds a health index of 97 out of 100, placing it in the Exceptional band. It scores highest on Vitality (99/100) and lowest on AI Readiness (64/100). It was last updated today. 2 contributors account for most of its recent work.

overall / 100

Exceptional

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met

Excellent80-92Strong across the board; minor gaps

Good65-79Healthy; gaps are limited and manageable

Moderate50-64Acceptable with notable gaps; review recommended

Weak35-49Material weaknesses across several areas

At Risk20-34Significant weaknesses; adoption warrants caution

Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 85 is calibrated to 97 on the published index scale (record calibration 2026-08-02).

Ownership

The Apache Software FoundationOrganization · verified domain

24,233 followers3,172 public repossince Jan 2009

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish
Go	github.com/apache/arrow-go/v18	v18.8.0	-	29	11 days ago

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

99Exceptional · 21% of overall

Development activity

99Exceptional

How it's scored

36/36	Push recency — last push 0 days ago
35.3/36	Commit cadence — 51/52 weeks with commits
18/18	Commit volume — 646 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 30 commit(s) and 20 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	646
human_commit_share	0.94
days_since_last_push	0
active_weeks_last_year	51

Release discipline

98Exceptional

How it's scored

27/27	Ships releases — 27 releases published
36/36	Release recency — latest release 7 days ago
27/27	Release cadence — a release every ~25 days
8/10	OpenSSF Scorecard: Signed-Releases — 5 out of the last 5 releases have a total of 5 signed artifacts.

Inputs used

releases_count	27
latest_release_tag	v18.8.0
releases_from_tags	no
days_since_latest_release	7
mean_days_between_releases	25

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

79Good · 17% of overall

Popularity & adoption

68Good

How it's scored

42.3/60	Stars — 405 stars
18/25	Forks — 146 forks
7.6/15	Watchers — 24 watchers

Inputs used

forks	146
stars	405
watchers	24
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

92Excellent

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (Apache-2.0)
18/18	CONTRIBUTING guide
13.5/13.5	Code of conduct
0/7.2	Issue template
6.3/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	1
has_contributing	yes
has_issue_template	no
has_code_of_conduct	yes
readme_badge_services	pkg.go.dev
has_pull_request_template	yes

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

86Excellent · 23% of overall

Maintainer resilience (bus factor)

65Good

How it's scored

25.2/54	Bus factor — 2 contributor(s) cover half of all commits
16/22.5	Commit distribution — top contributor authored 29% of commits
13.5/13.5	Contributor breadth — 99 contributors
10/10	OpenSSF Scorecard: Contributors — project has 101 contributing companies or organizations

Inputs used

bus_factor	2
contributors_sampled	99
top_contributor_share	0.287

Issue & PR responsiveness

87Excellent

How it's scored

35.4/42	Issue resolution — 84% of issues closed
27.7/30	PR acceptance — 920/996 decided PRs merged
13/13	Newcomer PR acceptance — 8/8 first-time contributors' PRs merged in 30d
10.5/15	OpenSSF Scorecard: Code-Review — Found 20/26 approved changesets -- score normalized to 7

Inputs used

merged_prs	920
open_issues	43
closed_issues	231
prs_merged_7d	5
prs_decided_7d	6
prs_merged_30d	53
prs_decided_30d	54
issue_closed_ratio	0.843
closed_unmerged_prs	76
first_time_authors_30d	5
first_time_prs_merged_30d	8
first_time_prs_decided_30d	8

Ownership & stewardship

100Exceptional

How it's scored

30/30	Ownership backing — organization-owned
20/20	Verified domain
25/25	Owner reach — 24,233 followers of apache
25/25	Track record — 3,172 public repos, account ~17 yr old

Inputs used

followers	24,233
owner_type	Organization
is_verified	yes
owner_login	apache
public_repos	3,172
account_age_days	6,450

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 1 package(s) on go
35/35	Publish recency — latest publish 11 days ago
20/20	Version history — 29 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	github.com/apache/arrow-go/v18
ecosystems	go
any_deprecated	no
min_days_since_publish	11

Engineering Quality

Are baseline engineering and documentation practices in place?

86Excellent · 19% of overall

Engineering practices

100Exceptional

How it's scored

24/24	CI workflows — 6 workflow(s)
24/24	Tests present
16/16	Linter config — .golangci.yaml
9.6/9.6	Pre-commit hooks
6.4/6.4	.editorconfig
20/20	OpenSSF Scorecard: CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	yes
has_linter_config	yes
has_precommit_config	yes

Documentation

65Good

How it's scored

30/30	README
0/25	Documentation directory
15/15	Documentation / homepage site — https://arrow.apache.org/go/
10/10	Repository description
10/10	Topics — 2 topics
0/10	Wiki

Inputs used

topics	apache-arrow, go
has_wiki	no
homepage	https://arrow.apache.org/go/
docs_site	https://arrow.apache.org/go/
has_readme	yes
has_docs_dir	no
has_description	yes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

78Good · 16% of overall

Security posture

75Good

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0/7.5	Branch-Protection — no data
2.5/2.5	CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
5.2/7.5	Code-Review — Found 20/26 approved changesets -- score normalized to 7
2.5/2.5	Contributors — project has 101 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5	Dependency-Update-Tool — update tool detected
5/5	Fuzzing — project is fuzzed
2.5/2.5	License — license file detected
7.5/7.5	Maintained — 30 commit(s) and 20 issue activity found in the last 90 days -- score normalized to 10
5/5	Packaging — packaging workflow detected
3/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 6
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
5/5	Security-Policy — security policy file detected
6/7.5	Signed-Releases — 5 out of the last 5 releases have a total of 5 signed artifacts.
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
3.8/7.5	Vulnerabilities — 5 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	17
scorecard_version	v5.5.0
checks_inconclusive	1
scorecard_aggregate	7.5

Excluded from scoring (no data or not applicable): Branch-Protection. Remaining weights renormalized.

Dependency advisories

89Excellent

How it's scored

26.6/35	Direct dependencies free of known advisories — 1 affected: github.com/hamba/avro/v2 v2.31.0 (unknown)
0/25	Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
40/40	No advisories left outstanding — no advisory has been public longer than 90 days

Inputs used

source	osv
advisories	5
affected_packages	2
assessed_packages	67
unassessed_packages	0
affected_by_severity	unknown 2
direct_affected_packages	1

Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 67 resolved dependencies against OSV. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

64Moderate · 4% of overall

Agent context & guidance

40Weak

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
40/40	Legible commit history — 94 of 94 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	1
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

79Good

How it's scored

18/18	One-command bootstrap — arrow/Makefile, arrow/bitutil/Makefile, arrow/compute/internal/kernels/Makefile, arrow/math/Makefile, arrow/memory/Makefile, internal/utils/Makefile, parquet/internal/bmi/Makefile, parquet/internal/utils/Makefile, parquet/metadata/Makefile
22/22	Automated tests
11/11	Lint / format config — .golangci.yaml
0/11	Static type checking
10/10	Reproducible environment — Dockerfile, lockfile
4/10	Demonstrated agent practice — 2 of the last 100 commits agent-authored or agent-credited
8/8	Automated maintenance — 6 of the last 100 commits are automated dependency updates
6/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 6

Inputs used

has_nix	no
has_tests	yes
lockfiles	go.sum
has_dockerfile	yes
typed_language	no
bootstrap_files	arrow/Makefile, arrow/bitutil/Makefile, arrow/compute/internal/kernels/Makefile, arrow/math/Makefile, arrow/memory/Makefile, internal/utils/Makefile, parquet/internal/bmi/Makefile, parquet/internal/utils/Makefile, parquet/metadata/Makefile
has_devcontainer	no
has_linter_config	yes
typecheck_configs	—
agent_commit_share	0.02
toolchain_manifests	go.mod
dependency_bot_commit_share	0.06

Code legibility for models

54Moderate

How it's scored

0/45	Type-checkable code — Assembly without a type-check config
53.5/55	Manageable file sizes — 28/1,057 source files over 60KB

Inputs used

primary_language	Assembly
largest_source_bytes	480,449
source_files_sampled	1,057
oversized_source_files	28

Machine-readable interfaces

80Excellent

How it's scored

40/40	API schema (OpenAPI/GraphQL/proto) — arrow/util/messages/types.proto
0/20	MCP server
40/40	Runnable examples — example, examples

Inputs used

example_dirs	example, examples
has_mcp_signal	no
api_schema_files	arrow/util/messages/types.proto
interfaces_expected_of	network-service

Key facts

405GitHub stars

99contributors

646commits, last 12 months

0days since last push

27releases

2bus factor

43open issues

Gopackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 146 ⇿

0Stars

146Forks

27Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Major 1Minor 8Patch 4

Each point covers 2 days.

OpenSSF Scorecard 7.5 / 10

7.5aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-09-15 23:18 UTC

10	Binary-Artifacts	no binaries found in the repo
n/a	Branch-Protection	internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
10	CI-Tests	30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
7	Code-Review	Found 20/26 approved changesets -- score normalized to 7
10	Contributors	project has 101 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
10	Dependency-Update-Tool	update tool detected
10	Fuzzing	project is fuzzed
10	License	license file detected
10	Maintained	30 commit(s) and 20 issue activity found in the last 90 days -- score normalized to 10
10	Packaging	packaging workflow detected
6	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 6
0	SAST	SAST tool is not run on all commits -- score normalized to 0
10	Security-Policy	security policy file detected
8	Signed-Releases	5 out of the last 5 releases have a total of 5 signed artifacts.
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
5	Vulnerabilities	5 existing vulnerabilities detected

Direct dependencies 25

Registry	Package	Version constraint	Manifest
Go	github.com/andybalholm/brotli	`v1.2.4`	go.mod
Go	github.com/apache/thrift	`v0.24.0`	go.mod
Go	github.com/cespare/xxhash/v2	`v2.3.0`	go.mod
Go	github.com/goccy/go-json	`v0.10.6`	go.mod
Go	github.com/google/flatbuffers	`v25.12.19+incompatible`	go.mod
Go	github.com/google/uuid	`v1.6.0`	go.mod
Go	github.com/hamba/avro/v2	`v2.31.0`	go.mod
Go	github.com/klauspost/compress	`v1.20.0`	go.mod
Go	github.com/klauspost/cpuid/v2	`v2.4.0`	go.mod
Go	github.com/pierrec/lz4/v4	`v4.1.29`	go.mod
Go	github.com/pterm/pterm	`v0.12.83`	go.mod
Go	github.com/stoewer/go-strcase	`v1.3.1`	go.mod
Go	github.com/stretchr/testify	`v1.12.1`	go.mod
Go	github.com/substrait-io/substrait-go/v8	`v8.1.1`	go.mod
Go	github.com/substrait-io/substrait-protobuf/go	`v0.85.0`	go.mod
Go	github.com/tidwall/sjson	`v1.2.5`	go.mod
Go	github.com/twmb/avro	`v1.9.0`	go.mod
Go	github.com/zeebo/xxh3	`v1.1.0`	go.mod
Go	golang.org/x/exp	`v0.0.0-20260112195511-716be5621a96`	go.mod
Go	golang.org/x/sync	`v0.22.0`	go.mod
Go	golang.org/x/sys	`v0.47.0`	go.mod
Go	gonum.org/v1/gonum	`v0.17.0`	go.mod
Go	google.golang.org/grpc	`v1.83.2`	go.mod
Go	google.golang.org/protobuf	`v1.36.12`	go.mod
Go	modernc.org/sqlite	`v1.58.0`	go.mod

All dependencies 67

Full resolved dependency set from the GitHub dependency graph: 25 direct and 42 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
Go	github.com/andybalholm/brotli	`v1.2.4`	direct
Go	github.com/apache/thrift	`v0.24.0`	direct
Go	github.com/cespare/xxhash/v2	`v2.3.0`	direct
Go	github.com/goccy/go-json	`v0.10.6`	direct
Go	github.com/google/flatbuffers	`v25.12.19+incompatible`	direct
Go	github.com/google/uuid	`v1.6.0`	direct
Go	github.com/hamba/avro/v2	`v2.31.0`	direct
Go	github.com/klauspost/compress	`v1.20.0`	direct
Go	github.com/klauspost/cpuid/v2	`v2.4.0`	direct
Go	github.com/pierrec/lz4/v4	`v4.1.29`	direct
Go	github.com/pterm/pterm	`v0.12.83`	direct
Go	github.com/stoewer/go-strcase	`v1.3.1`	direct
Go	github.com/stretchr/testify	`v1.12.1`	direct
Go	github.com/substrait-io/substrait-go/v8	`v8.1.1`	direct
Go	github.com/substrait-io/substrait-protobuf/go	`v0.85.0`	direct
Go	github.com/tidwall/sjson	`v1.2.5`	direct
Go	github.com/twmb/avro	`v1.9.0`	direct
Go	github.com/zeebo/xxh3	`v1.1.0`	direct
Go	golang.org/x/exp	`v0.0.0-20260112195511-716be5621a96`	direct
Go	golang.org/x/sync	`v0.22.0`	direct
Go	golang.org/x/sys	`v0.47.0`	direct
Go	gonum.org/v1/gonum	`v0.17.0`	direct
Go	google.golang.org/grpc	`v1.83.2`	direct
Go	google.golang.org/protobuf	`v1.36.12`	direct
Go	modernc.org/sqlite	`v1.58.0`	direct
Go	atomicgo.dev/cursor	`v0.2.0`	indirect
Go	atomicgo.dev/keyboard	`v0.2.9`	indirect
Go	atomicgo.dev/schedule	`v0.1.0`	indirect
Go	cloud.google.com/go	`v0.121.0`	indirect
Go	github.com/antlr4-go/antlr/v4	`v4.13.1`	indirect
Go	github.com/clipperhouse/uax29/v2	`v2.7.0`	indirect
Go	github.com/cockroachdb/apd/v3	`v3.2.1`	indirect
Go	github.com/containerd/console	`v1.0.5`	indirect
Go	github.com/creasty/defaults	`v1.8.0`	indirect
Go	github.com/davecgh/go-spew	`v1.1.2-0.20180830191138-d8f796af33cc`	indirect
Go	github.com/dustin/go-humanize	`v1.0.1`	indirect
Go	github.com/go-viper/mapstructure/v2	`v2.4.0`	indirect
Go	github.com/goccy/go-yaml	`v1.17.1`	indirect
Go	github.com/gookit/color	`v1.6.0`	indirect
Go	github.com/json-iterator/go	`v1.1.12`	indirect
Go	github.com/klauspost/asmfmt	`v1.3.2`	indirect
Go	github.com/lithammer/fuzzysearch	`v1.1.8`	indirect
Go	github.com/mattn/go-isatty	`v0.0.24`	indirect
Go	github.com/mattn/go-runewidth	`v0.0.20`	indirect
Go	github.com/minio/asm2plan9s	`v0.0.0-20200509001527-cdd76441f9d8`	indirect
Go	github.com/minio/c2goasm	`v0.0.0-20190812172519-36a3d3bbc4f3`	indirect
Go	github.com/modern-go/concurrent	`v0.0.0-20180306012644-bacd9c7ef1dd`	indirect
Go	github.com/modern-go/reflect2	`v1.0.2`	indirect
Go	github.com/ncruces/go-strftime	`v1.0.0`	indirect
Go	github.com/remyoudompheng/bigfft	`v0.0.0-20230129092748-24d4a6f8daec`	indirect
Go	github.com/stretchr/objx	`v0.5.3`	indirect
Go	github.com/substrait-io/substrait	`v0.87.0`	indirect
Go	github.com/tidwall/gjson	`v1.14.2`	indirect
Go	github.com/tidwall/match	`v1.1.1`	indirect
Go	github.com/tidwall/pretty	`v1.2.0`	indirect
Go	github.com/xo/terminfo	`v0.0.0-20220910002029-abceb7e1c41e`	indirect
Go	go.yaml.in/yaml/v3	`v3.0.5`	indirect
Go	golang.org/x/mod	`v0.38.0`	indirect
Go	golang.org/x/net	`v0.58.0`	indirect
Go	golang.org/x/telemetry	`v0.0.0-20260708182218-49f421fb7959`	indirect
Go	golang.org/x/term	`v0.45.0`	indirect
Go	golang.org/x/text	`v0.41.0`	indirect
Go	golang.org/x/tools	`v0.48.0`	indirect
Go	google.golang.org/genproto/googleapis/rpc	`v0.0.0-20260526163538-3dc84a4a5aaa`	indirect
Go	modernc.org/libc	`v1.75.6`	indirect
Go	modernc.org/mathutil	`v1.7.1`	indirect
Go	modernc.org/memory	`v1.12.1`	indirect

Dependency advisories 2

This repository publishes no package the index resolves, so its own dependency graph was assessed — 67 packages, which also include development and test pins that never ship: 2 carry known advisories, of which 1 are direct.

Package	Version	Relation	Severity	Advisories	Fixed in
github.com/hamba/avro/v2	`v2.31.0`	direct	unknown	3	`2.33.0`
golang.org/x/mod	`v0.38.0`	indirect	unknown	2	`1.27.0-rc.3`

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — Go.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

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