Public record
Software health reportschema 0.11.0 · metrics 2.10.0 · 2026-07-16 12:23 UTC

ruby / rbs

The type signature language for Ruby

Ruby · CCustom license★ 2,165 stars⑂ 249 forkssince Mar 2019View on GitHub ↗

ruby/rbs holds a health index of 91 out of 100, placing it in the Excellent band. It scores highest on Vitality (99/100) and lowest on AI Readiness (45/100). It was last updated today. A single contributor accounts for most of its recent work.

91
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.

91
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 77 is calibrated to 91 on the published index scale (record calibration 2026-08-02).

Ownership

2,074 followers190 public repossince Feb 2010

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publish
RubyGemsrbs4.0.3-15824 days ago

Metrics by category

Vitality

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

99Exceptional · 21% of overall
How it's scored
36/36Push recencylast push 0 days ago
35.3/36Commit cadence51/52 weeks with commits
18/18Commit volume917 commits in the last year
10/10OpenSSF Scorecard: Maintained30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year917
human_commit_share
days_since_last_push0
active_weeks_last_year51

Release discipline

100Exceptional
How it's scored
27/27Ships releases77 releases published
36/36Release recencylatest release 24 days ago
27/27Release cadencea release every ~18.5 days
0/10OpenSSF Scorecard: Signed-Releasesno data
Inputs used
releases_count77
latest_release_tagv4.1.0.pre.2
releases_from_tagsno
days_since_latest_release24
mean_days_between_releases18.5
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
How it's scored
54.1/60Stars2,165 stars
20/25Forks249 forks
9.8/15Watchers59 watchers
Inputs used
forks249
stars2,165
watchers59
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
16.9/22.5Licenselicense file present, not a recognized license
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services
has_pull_request_templateno
How it's scored
80/80Total downloads64,589,284 downloads all-time across rubygems
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagesrbs
dependents
ecosystemsrubygems
total_downloads64,589,284
monthly_downloads
unverified_packages_excluded
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

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

73Good · 23% of overall
How it's scored
9/54Bus factor1 contributor(s) cover half of all commits
10.5/22.5Commit distributiontop contributor authored 53% of commits
13.5/13.5Contributor breadth100 contributors
10/10OpenSSF Scorecard: Contributorsproject has 82 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled100
top_contributor_share0.534
How it's scored
24.2/42Issue resolution58% of issues closed
26.9/30PR acceptance2,343/2,609 decided PRs merged
0/13Newcomer PR acceptanceno first-time contributor's PR decided in 30d
4.5/15OpenSSF Scorecard: Code-ReviewFound 3/9 approved changesets -- score normalized to 3
Inputs used
merged_prs2,343
open_issues137
closed_issues186
prs_merged_7d
prs_decided_7d
prs_merged_30d
prs_decided_30d
issue_closed_ratio0.576
closed_unmerged_prs266
first_time_authors_30d
first_time_prs_merged_30d
first_time_prs_decided_30d
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backingorganization-owned
0/20Verified domainverified-domain status not read for this organization
23.8/25Owner reach2,074 followers of ruby
25/25Track record190 public repos, account ~16 yr old
Inputs used
followers2,074
owner_typeOrganization
is_verified
owner_loginruby
public_repos190
account_age_days5,985
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable1 package(s) on rubygems
35/35Publish recencylatest publish 24 days ago
20/20Version history158 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagesrbs
ecosystemsrubygems
any_deprecatedno
min_days_since_publish24

Engineering Quality

Are baseline engineering and documentation practices in place?

84Excellent · 19% of overall
How it's scored
24/24CI workflows12 workflow(s)
24/24Tests present
16/16Linter config.rubocop.yml
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests10 out of 10 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno

Documentation

85Excellent
How it's scored
30/30README
25/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics2 topics
10/10Wiki
Inputs used
topicsruby, type-checking
has_wikiyes
homepage
docs_site
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

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

51Moderate · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
2.2/7.5Branch-Protectionbranch protection is not maximal on development and all release branches
2.5/2.5CI-Tests10 out of 10 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2.2/7.5Code-ReviewFound 3/9 approved changesets -- score normalized to 3
2.5/2.5Contributorsproject has 82 contributing companies or organizations
10/10Dangerous-Workflowno dangerous workflow patterns detected
7.5/7.5Dependency-Update-Toolupdate tool detected
0/5Fuzzingproject is not fuzzed
2.2/2.5Licenselicense file detected
7.5/7.5Maintained30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
0/5Packagingno data
0/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0/5SASTSAST tool is not run on all commits -- score normalized to 0
0/5Security-Policysecurity policy file not detected
0/7.5Signed-Releasesno data
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
3/7.5Vulnerabilities6 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate5.1
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.

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.

45Weak · 4% of overall
How it's scored
0/45Agent instructionsno CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
0/40Legible commit historyno data
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share
agent_instruction_files
agent_instruction_max_bytes
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config.rubocop.yml
0/11Static type checking
10/10Reproducible environmentDockerfile, lockfile
0/10Demonstrated agent practiceno data
5/8Automated maintenancedependency automation configured, none observed in the sampled commits
0/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesCargo.lock, Gemfile.lock
has_dockerfileyes
typed_languageno
bootstrap_files
has_devcontainerno
has_linter_configyes
typecheck_configs
agent_commit_share
toolchain_manifests
dependency_bot_commit_share0
Excluded from scoring (no data or not applicable): Demonstrated agent practice. Remaining weights renormalized.
How it's scored
0/45Type-checkable codeRuby without a type-check config
54/55Manageable file sizes8/430 source files over 60KB
Inputs used
primary_languageRuby
largest_source_bytes241,527
source_files_sampled430
oversized_source_files8
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)not applicable to this kind of software
0/20MCP servernot applicable to this kind of software
40/40Runnable examplesexamples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files
interfaces_expected_of
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

2,165GitHub stars
100contributors
917commits, last 12 months
0days since last push
77releases
1bus factor
137open issues
crates.io, RubyGemspackage ecosystems

More detail

OpenSSF Scorecard 5.1 / 10
5.1aggregate

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 · 2026-07-16 12:23 UTC

10Binary-Artifactsno binaries found in the repo
3Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests10 out of 10 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 3/9 approved changesets -- score normalized to 3
10Contributorsproject has 82 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
9Licenselicense file detected
10Maintained30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
4Vulnerabilities6 existing vulnerabilities detected
Direct dependencies 37
RegistryPackageVersion constraintManifest
RubyGemsrakeGemfile
RubyGemsrake-compilerGemfile
RubyGemstest-unitGemfile
RubyGemsrspecGemfile
RubyGemsrubocopGemfile
RubyGemsrubocop-rubycwGemfile
RubyGemsrubocop-on-rbsGemfile
RubyGemsjsonGemfile
RubyGemsjson-schemaGemfile
RubyGemsgoodcheckGemfile
RubyGemsdigestGemfile
RubyGemstempfileGemfile
RubyGemsrdocGemfile
RubyGemsfileutilsGemfile
RubyGemsraapGemfile
RubyGemsactivesupport~> 7.0Gemfile
RubyGemsextconf_compile_commands_jsonGemfile
RubyGemsirbGemfile
RubyGemsabbrevGemfile
RubyGemsbase64Gemfile
RubyGemsbigdecimalGemfile
RubyGemsdbmGemfile
RubyGemsmutex_mGemfile
RubyGemsnkfGemfile
RubyGemsstackprofGemfile
RubyGemsmemory_profilerGemfile
RubyGemsbenchmark-ipsGemfile
RubyGemsrbs-amberGemfile
RubyGemsnet-smtpGemfile
RubyGemscsvGemfile
RubyGemsostructGemfile
RubyGemspstoreGemfile
RubyGemstimeoutGemfile
RubyGemsrbs~> 3.9steep/Gemfile
RubyGemssteep~> 1.10steep/Gemfile
RubyGemsruby-lspsteep/Gemfile
RubyGemstest-unitsteep/Gemfile
All dependencies 141

Full resolved dependency set from the GitHub dependency graph: 36 direct and 105 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
RubyGemsabbrev0.1.2direct
RubyGemsactivesupport7.2.3direct
RubyGemsactivesupport8.1.3direct
RubyGemsbase640.3.0direct
RubyGemsbenchmark-ips2.15.1direct
RubyGemsbigdecimal4.1.2direct
RubyGemscsv3.3.5direct
RubyGemsdbm1.1.0direct
RubyGemsdigest3.2.1direct
RubyGemsextconf_compile_commands_json0.0.7direct
RubyGemsfileutils1.8.0direct
RubyGemsgoodcheck3.1.0direct
RubyGemsirb1.18.0direct
RubyGemsjson2.19.7direct
RubyGemsjson-schema6.2.0direct
RubyGemsmemory_profiler1.1.0direct
RubyGemsmutex_m0.3.0direct
RubyGemsnet-smtp0.5.1direct
RubyGemsnkf0.2.0direct
RubyGemsostruct0.6.3direct
RubyGemspstore0.2.1direct
RubyGemsraap2.0.0direct
RubyGemsrake13.4.2direct
RubyGemsrake-compiler1.3.1direct
RubyGemsrbs3.10.4direct
RubyGemsrdoc7.2.0direct
RubyGemsrspec3.13.2direct
RubyGemsrubocop1.87.0direct
RubyGemsrubocop-on-rbs2.0.0direct
RubyGemsrubocop-rubycw0.2.2direct
RubyGemsruby-lsp0.26.9direct
RubyGemsstackprof0.2.28direct
RubyGemssteep1.10.0direct
RubyGemstempfile0.3.1direct
RubyGemstest-unit3.7.7direct
RubyGemstimeout0.6.1direct
crates.ioaho-corasick1.1.3indirect
crates.iobindgenindirect
crates.iobindgen0.72.0indirect
crates.iobitflags2.9.1indirect
crates.ioccindirect
crates.iocc1.2.29indirect
crates.iocexpr0.6.0indirect
crates.iocfg-if1.0.1indirect
crates.ioclang-sys1.8.1indirect
crates.ioeither1.15.0indirect
crates.ioequivalent1.0.2indirect
crates.ioglob0.3.2indirect
crates.iohashbrown0.17.1indirect
crates.ioindexmap2.14.0indirect
crates.ioitertools0.13.0indirect
crates.ioitoa1.0.15indirect
crates.iolibc0.2.174indirect
crates.iolibloading0.8.8indirect
crates.iolog0.4.27indirect
crates.iomemchr2.7.5indirect
crates.iominimal-lexical0.2.1indirect
crates.ionom7.1.3indirect
crates.ioprettyplease0.2.35indirect
crates.ioproc-macro21.0.95indirect
crates.ioquote1.0.40indirect
crates.ioregex1.11.1indirect
crates.ioregex-automata0.4.9indirect
crates.ioregex-syntax0.8.5indirect
crates.ioruby-rbs-sysindirect
crates.iorustc-hash2.1.1indirect
crates.ioryu1.0.20indirect
crates.ioserdeindirect
crates.ioserde1.0.219indirect
crates.ioserde_derive1.0.219indirect
crates.ioserde_yamlindirect
crates.ioserde_yaml0.9.34+deprecatedindirect
crates.ioshlex1.3.0indirect
crates.iosyn2.0.104indirect
crates.iounicode-ident1.0.18indirect
crates.iounsafe-libyaml0.2.11indirect
crates.iowindows-targets0.53.2indirect
crates.iowindows_aarch64_gnullvm0.53.0indirect
crates.iowindows_aarch64_msvc0.53.0indirect
crates.iowindows_i686_gnu0.53.0indirect
crates.iowindows_i686_gnullvm0.53.0indirect
crates.iowindows_i686_msvc0.53.0indirect
crates.iowindows_x86_64_gnu0.53.0indirect
crates.iowindows_x86_64_gnullvm0.53.0indirect
crates.iowindows_x86_64_msvc0.53.0indirect
crates.ioxxhash-rustindirect
crates.ioxxhash-rust0.8.15indirect
RubyGemsaddressable2.9.0indirect
RubyGemsast2.4.3indirect
RubyGemsbenchmark0.5.0indirect
RubyGemsconcurrent-ruby1.3.6indirect
RubyGemsconnection_pool3.0.2indirect
RubyGemsdiff-lcs1.6.2indirect
RubyGemsdrb2.2.3indirect
RubyGemserb6.0.4indirect
RubyGemsffi1.17.4indirect
RubyGemsi18n1.14.8indirect
RubyGemsio-console0.8.2indirect
RubyGemsjar-dependenciesindirect
RubyGemslanguage_server-protocol3.17.0.5indirect
RubyGemslint_roller1.1.0indirect
RubyGemslisten3.10.0indirect
RubyGemsloggerindirect
RubyGemslogger1.7.0indirect
RubyGemsmarcel1.2.1indirect
RubyGemsminitest6.0.6indirect
RubyGemsminitest-mock5.27.0indirect
RubyGemsnet-protocol0.2.2indirect
RubyGemsparallel2.1.0indirect
RubyGemsparser3.3.11.1indirect
RubyGemspower_assert3.0.1indirect
RubyGemspp0.6.3indirect
RubyGemsprettyprint0.2.0indirect
RubyGemsprismindirect
RubyGemsprism1.9.0indirect
RubyGemspsych4.0.6indirect
RubyGemspublic_suffix7.0.5indirect
RubyGemsracc1.8.1indirect
RubyGemsrainbow3.1.1indirect
RubyGemsrb-fsevent0.11.2indirect
RubyGemsrb-inotify0.11.1indirect
RubyGemsregexp_parser2.12.0indirect
RubyGemsreline0.6.3indirect
RubyGemsrspec-core3.13.6indirect
RubyGemsrspec-expectations3.13.5indirect
RubyGemsrspec-mocks3.13.8indirect
RubyGemsrspec-support3.13.7indirect
RubyGemsrubocop-ast1.49.1indirect
RubyGemsruby-progressbar1.13.0indirect
RubyGemssecurerandom0.4.1indirect
RubyGemsstringio3.2.0indirect
RubyGemsstrong_json2.1.2indirect
RubyGemsstrscan3.1.8indirect
RubyGemsterminal-table4.0.0indirect
RubyGemstsortindirect
RubyGemstsort0.2.0indirect
RubyGemstzinfo2.0.6indirect
RubyGemsunicode-display_width3.2.0indirect
RubyGemsunicode-emoji4.2.0indirect
RubyGemsuri1.1.1indirect
RubyGemszlib3.2.3indirect
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.

The message is kept through sign-in.

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 v0.11.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statisticsRubyGems.