Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-19 07:22 UTC

aeron-io / agrona

High Performance data structures and utility methods for Java

JavaApache-2.0★ 3,259 stars⑂ 457 forkssince Nov 2014View on GitHub ↗
#java#performance

aeron-io/agrona holds a health index of 87 out of 100, placing it in the Excellent band. It scores highest on Vitality (93/100) and lowest on AI Readiness (48/100). It was last updated 5 days ago. A single contributor accounts for most of its recent work.

87
overall / 100
Excellent

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.

87
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)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

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 73 is calibrated to 87 on the published index scale (record calibration 2026-08-02).

Ownership

AeronOrganization
221 followers6 public repossince Oct 2024

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

Metrics by category

Vitality

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

93Exceptional · 21% of overall

Development activity

89Excellent
How it's scored
36/36Push recency — last push 5 days ago
24.9/36Commit cadence — 36/52 weeks with commits
18/18Commit volume — 191 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year191
human_commit_share1
days_since_last_push5
active_weeks_last_year36

Release discipline

100Exceptional
How it's scored
27/27Ships releases — 100 releases published
36/36Release recency — latest release 6 days ago
27/27Release cadence — a release every ~44.9 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count100
latest_release_tag2.7.0
releases_from_tagsno
days_since_latest_release6
mean_days_between_releases44.9
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

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

81Excellent · 17% of overall

Popularity & adoption

91Excellent
How it's scored
57/60Stars — 3,259 stars
22.2/25Forks — 457 forks
12.1/15Watchers — 150 watchers
Inputs used
forks457
stars3,259
watchers150
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

70Good
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges3
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesgithub.com, shields.io
has_pull_request_templateno

Sustainability & Governance

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

59Moderate · 23% of overall

Maintainer resilience (bus factor)

43Weak
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
10.4/22.5Commit distribution — top contributor authored 54% of commits
13.5/13.5Contributor breadth — 62 contributors
10/10OpenSSF Scorecard: Contributors — project has 15 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled62
top_contributor_share0.536

Issue & PR responsiveness

81Excellent
How it's scored
41.7/42Issue resolution — 99% of issues closed
23.8/30PR acceptance — 174/219 decided PRs merged
10.8/13Newcomer PR acceptance — 10/12 first-time contributors' PRs merged in 30d
4.5/15OpenSSF Scorecard: Code-Review — Found 11/30 approved changesets -- score normalized to 3
Inputs used
merged_prs174
open_issues1
closed_issues164
prs_merged_7d2
prs_decided_7d2
prs_merged_30d12
prs_decided_30d14
issue_closed_ratio0.994
closed_unmerged_prs45
first_time_authors_30d6
first_time_prs_merged_30d10
first_time_prs_decided_30d12

Ownership & stewardship

57Moderate
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
16.9/25Owner reach — 221 followers of aeron-io
10.2/25Track record — 6 public repos, account ~2 yr old
Inputs used
followers221
owner_typeOrganization
is_verifiedno
owner_loginaeron-io
public_repos6
account_age_days738

Engineering Quality

Are baseline engineering and documentation practices in place?

65Good · 19% of overall

Engineering practices

68Good
How it's scored
24/24CI workflows — 5 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 11 out of 11 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

60Moderate
How it's scored
30/30README
0/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 2 topics
10/10Wiki
Inputs used
topicsjava, performance
has_wikiyes
homepage—
docs_site—
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

75Good · 16% of overall

Security posture

69Good
How it's scored
6.8/7.5Binary-Artifacts — binaries present in source code
0/7.5Branch-Protection — no data
2.5/2.5CI-Tests — 11 out of 11 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
2.2/7.5Code-Review — Found 11/30 approved changesets -- score normalized to 3
2.5/2.5Contributors — project has 15 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
5/5Pinned-Dependencies — all dependencies are pinned
5/5SAST — SAST tool is run on all commits
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
6/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate6.9
Excluded from scoring (no data or not applicable): Branch-Protection, Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories11
affected_packages8
assessed_packages91
unassessed_packages0
affected_by_severityhigh 3, moderate 3, low 2
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 91 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.

48Weak · 4% of overall

Agent context & guidance

12Critical
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
11.7/40Legible commit history — 22 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.22
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

56Moderate
How it's scored
12.6/18One-command bootstrap — build.gradle, buildSrc/build.gradle (toolchain convention, no task runner)
22/22Automated tests
0/11Lint / format config
11/11Static type checking — Java (statically typed)
0/10Reproducible environment
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
10/10OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestsbuild.gradle, buildSrc/build.gradle
dependency_bot_commit_share0

Code legibility for models

100Exceptional
How it's scored
45/45Type-checkable code — Java (statically typed)
54.8/55Manageable file sizes — 1/293 source files over 60KB
Inputs used
primary_languageJava
largest_source_bytes134,749
source_files_sampled293
oversized_source_files1

Key facts

3,259GitHub stars
62contributors
191commits, last 12 months
5days since last push
100releases
1bus factor
1open issues
Mavenpackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 457 ⇿
0Stars
457Forks
99Releases

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.

010020030040050045082014-112020-102026-10
Major 2Minor 28Patch 67

Each point covers 11 days.

OpenSSF Scorecard 6.9 / 10
6.9aggregate

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 · 2026-10-19 07:21 UTC

9Binary-Artifactsbinaries present in source code
n/aBranch-Protectioninternal 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
10CI-Tests11 out of 11 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
3Code-ReviewFound 11/30 approved changesets -- score normalized to 3
10Contributorsproject has 15 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
10Pinned-Dependenciesall dependencies are pinned
10SASTSAST tool is run on all commits
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
8Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
All dependencies 91

Full resolved dependency set from the GitHub dependency graph: 0 direct and 91 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
Mavenbiz.aQute.bnd:biz.aQute.bnd.embedded-repo6.4.0indirect
Mavenbiz.aQute.bnd:biz.aQute.bnd.gradle6.4.0indirect
Mavenbiz.aQute.bnd:biz.aQute.bnd.util6.4.0indirect
Mavenbiz.aQute.bnd:biz.aQute.bndlib6.4.0indirect
Mavenbiz.aQute.bnd:biz.aQute.repository6.4.0indirect
Mavenbiz.aQute.bnd:biz.aQute.resolve6.4.0indirect
Mavencom.github.ben-manes:gradle-versions-plugin0.51.0indirect
Mavencom.github.johnrengelman:shadow8.1.1indirect
Mavencom.google.code.findbugs:findbugs-annotations3.0.1indirect
Mavencom.google.code.findbugs:jsr3053.0.2indirect
Mavencom.google.errorprone:error_prone_annotations2.26.1indirect
Mavencom.google.errorprone:error_prone_annotations2.7.1indirect
Mavencom.google.guava:failureaccess1.0.1indirect
Mavencom.google.guava:failureaccess1.0.2indirect
Mavencom.google.guava:guava31.0.1-jreindirect
Mavencom.google.guava:guava33.2.1-jreindirect
Mavencom.google.guava:guava-testlib33.2.1-jreindirect
Mavencom.google.guava:listenablefuture9999.0-empty-to-avoid-conflict-with-guavaindirect
Mavencom.google.j2objc:j2objc-annotations1.3indirect
Mavencom.google.j2objc:j2objc-annotations3.0.0indirect
Mavencom.gradle:common-custom-user-data-gradle-plugin2.0indirect
Mavencom.gradle:develocity-gradle-plugin3.17.5indirect
Mavencom.puppycrawl.tools:checkstyle9.3indirect
Mavencom.squareup.moshi:moshi1.12.0indirect
Mavencom.squareup.moshi:moshi-kotlin1.12.0indirect
Mavencom.squareup.okhttp3:okhttp4.11.0indirect
Mavencom.squareup.okio:okio3.2.0indirect
Mavencom.squareup.okio:okio-jvm3.2.0indirect
Mavencommons-beanutils:commons-beanutils1.9.4indirect
Mavencommons-collections:commons-collections3.2.2indirect
Mavencommons-io:commons-io2.11.0indirect
Maveninfo.picocli:picocli4.6.2indirect
Mavenjunit:junit4.13.2indirect
Mavennet.bytebuddy:byte-buddy1.14.18indirect
Mavennet.bytebuddy:byte-buddy-agent1.14.18indirect
Mavennet.java.dev.jna:jna5.8.0indirect
Mavennet.java.dev.jna:jna-platform5.8.0indirect
Mavennet.sf.jopt-simple:jopt-simple4.6indirect
Mavennet.sf.jopt-simple:jopt-simple5.0.4indirect
Mavennet.sf.saxon:Saxon-HE10.6indirect
Mavenorg.antlr:antlr4-runtime4.9.3indirect
Mavenorg.apache.ant:ant1.10.13indirect
Mavenorg.apache.ant:ant-launcher1.10.13indirect
Mavenorg.apache.commons:commons-math33.6.1indirect
Mavenorg.apache.logging.log4j:log4j-api2.20.0indirect
Mavenorg.apache.logging.log4j:log4j-core2.20.0indirect
Mavenorg.apiguardian:apiguardian-api1.1.2indirect
Mavenorg.checkerframework:checker-qual3.12.0indirect
Mavenorg.checkerframework:checker-qual3.42.0indirect
Mavenorg.codehaus.plexus:plexus-utils3.5.1indirect
Mavenorg.hamcrest:hamcrest2.2indirect
Mavenorg.hamcrest:hamcrest-core1.3indirect
Mavenorg.javassist:javassist3.28.0-GAindirect
Mavenorg.jdom:jdom22.0.6.1indirect
Mavenorg.jetbrains.kotlin:kotlin-reflect1.8.20indirect
Mavenorg.jetbrains.kotlin:kotlin-stdlib1.8.21indirect
Mavenorg.jetbrains.kotlin:kotlin-stdlib-common1.8.21indirect
Mavenorg.jetbrains.kotlin:kotlin-stdlib-jdk71.8.21indirect
Mavenorg.jetbrains.kotlin:kotlin-stdlib-jdk81.8.21indirect
Mavenorg.jetbrains:annotations13.0indirect
Mavenorg.junit.jupiter:junit-jupiter-api5.10.3indirect
Mavenorg.junit.jupiter:junit-jupiter-engine5.10.3indirect
Mavenorg.junit.jupiter:junit-jupiter-params5.10.3indirect
Mavenorg.junit.platform:junit-platform-commons1.10.3indirect
Mavenorg.junit.platform:junit-platform-engine1.10.3indirect
Mavenorg.junit.vintage:junit-vintage-engine5.10.3indirect
Mavenorg.junit:junit-bom5.10.3indirect
Mavenorg.mockito:mockito-core4.11.0indirect
Mavenorg.mockito:mockito-inline4.11.0indirect
Mavenorg.objenesis:objenesis3.3indirect
Mavenorg.openjdk.jcstress:jcstress-core0.16indirect
Mavenorg.openjdk.jmh:jmh-core1.37indirect
Mavenorg.openjdk.jmh:jmh-generator-annprocess1.37indirect
Mavenorg.opentest4j:opentest4j1.3.0indirect
Mavenorg.osgi:org.osgi.dto1.0.0indirect
Mavenorg.osgi:org.osgi.framework1.8.0indirect
Mavenorg.osgi:org.osgi.resource1.0.0indirect
Mavenorg.osgi:org.osgi.service.coordinator1.0.2indirect
Mavenorg.osgi:org.osgi.service.log1.3.0indirect
Mavenorg.osgi:org.osgi.service.repository1.1.0indirect
Mavenorg.osgi:org.osgi.service.resolver1.1.1indirect
Mavenorg.osgi:org.osgi.util.function1.2.0indirect
Mavenorg.osgi:org.osgi.util.promise1.2.0indirect
Mavenorg.osgi:org.osgi.util.tracker1.5.4indirect
Mavenorg.osgi:osgi.annotation8.0.1indirect
Mavenorg.ow2.asm:asm9.7indirect
Mavenorg.ow2.asm:asm-commons9.7indirect
Mavenorg.ow2.asm:asm-tree9.7indirect
Mavenorg.reflections:reflections0.10.2indirect
Mavenorg.slf4j:slf4j-api1.7.25indirect
Mavenorg.vafer:jdependency2.8.0indirect
Dependency advisories 8

This repository publishes no package the index resolves, so its own dependency graph was assessed — 91 packages, which also include development and test pins that never ship: 8 carry known advisories, of which 0 are direct.

PackageVersionRelationSeverityAdvisoriesFixed in
commons-beanutils:commons-beanutils1.9.4indirecthigh12.0.0-M2
commons-io:commons-io2.11.0indirecthigh12.14.0
org.codehaus.plexus:plexus-utils3.5.1indirecthigh14.0.3
com.google.guava:guava31.0.1-jreindirectmoderate232.0.0-android
com.squareup.okio:okio3.2.0indirectmoderate13.4.0
com.squareup.okio:okio-jvm3.2.0indirectmoderate13.4.0
org.apache.logging.log4j:log4j-api2.20.0indirectlow12.26.1
org.apache.logging.log4j:log4j-core2.20.0indirectlow32.25.4

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

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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.