Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-20 03:42 UTC

ruby / rbs

The type signature language for Ruby

Ruby · CCustom license★ 2,181 stars⑂ 256 forkssince Mar 2019View on GitHub ↗
KindLibraryCommand-line toolhow this is determined

ruby/rbs holds a health index of 95 out of 100, placing it in the Exceptional band. It scores highest on Vitality (100/100) and lowest on AI Readiness (64/100). It was last updated 1 day ago. A single contributor accounts for most of its recent work.

95
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.

95
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 82 is calibrated to 95 on the published index scale (record calibration 2026-08-02).

Ownership

The Ruby Programming LanguageOrganization · verified domain
2,103 followers191 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
RubyGemsrbs4.2.0-17824 days ago

Metrics by category

Vitality

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

100Exceptional · 21% of overall

Development activity

100Exceptional
How it's scored
36/36Push recency — last push 1 days ago
36/36Commit cadence — 52/52 weeks with commits
18/18Commit volume — 1,036 commits in the last year
10/10OpenSSF Scorecard: Maintained — 30 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year1,036
human_commit_share0.98
days_since_last_push1
active_weeks_last_year52

Release discipline

100Exceptional
How it's scored
27/27Ships releases — 92 releases published
36/36Release recency — latest release 24 days ago
27/27Release cadence — a release every ~7.6 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count92
latest_release_tagv4.2.1.pre.1
releases_from_tagsno
days_since_latest_release24
mean_days_between_releases7.6
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
54.2/60Stars — 2,181 stars
20.1/25Forks — 256 forks
9.8/15Watchers — 59 watchers
Inputs used
forks256
stars2,181
watchers59
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
16.9/22.5License — license 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_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno
How it's scored
80/80Total downloads — 81,985,939 downloads all-time across rubygems
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesrbs
dependents—
ecosystemsrubygems
total_downloads81,985,939
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?

76Good · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
9.6/22.5Commit distribution — top contributor authored 57% of commits
13.5/13.5Contributor breadth — 98 contributors
10/10OpenSSF Scorecard: Contributors — project has 88 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled98
top_contributor_share0.574
How it's scored
24.3/42Issue resolution — 58% of issues closed
26.9/30PR acceptance — 2,447/2,724 decided PRs merged
10.5/13Newcomer PR acceptance — 21/26 first-time contributors' PRs merged in 30d
13.5/15OpenSSF Scorecard: Code-Review — Found 12/13 approved changesets -- score normalized to 9
Inputs used
merged_prs2,447
open_issues139
closed_issues190
prs_merged_7d5
prs_decided_7d5
prs_merged_30d40
prs_decided_30d46
issue_closed_ratio0.578
closed_unmerged_prs277
first_time_authors_30d2
first_time_prs_merged_30d21
first_time_prs_decided_30d26
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
23.9/25Owner reach — 2,103 followers of ruby
25/25Track record — 191 public repos, account ~16 yr old
Inputs used
followers2,103
owner_typeOrganization
is_verifiedyes
owner_loginruby
public_repos191
account_age_days6,050

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on rubygems
35/35Publish recency — latest publish 24 days ago
20/20Version history — 178 published versions
20/20Not deprecated — active, 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 workflows — 13 workflow(s)
24/24Tests present
16/16Linter config — .rubocop.yml
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 13 out of 13 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
10/10Topics — 2 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?

69Good · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
2.2/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2.5/2.5CI-Tests — 13 out of 13 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
6.8/7.5Code-Review — Found 12/13 approved changesets -- score normalized to 9
2.5/2.5Contributors — project has 88 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.2/2.5License — license file detected
7.5/7.5Maintained — 30 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
5/5Packaging — packaging workflow detected
4.5/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 9
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
5.2/7.5Vulnerabilities — 3 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate7
Excluded from scoring (no data or not applicable): Signed-Releases. Remaining weights renormalized.
How it's scored
14/35Direct dependencies free of known advisories — 1 affected: activesupport 7.2.3 (high 7.5)
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
33.7/40No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 180 days ago
Inputs used
sourceosv
advisories3
affected_packages1
assessed_packages142
unassessed_packages11
affected_by_severityhigh 1
direct_affected_packages1
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories. Remaining weights renormalized. Matched 142 resolved dependencies against OSV. 11 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. 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
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
29.4/40Legible commit history — 54 of 98 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.551
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
12.6/18One-command bootstrap — rust/Cargo.toml, rust/ruby-rbs-sys/Cargo.toml, rust/ruby-rbs/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
11/11Lint / format config — .rubocop.yml
0/11Static type checking
10/10Reproducible environment — Dockerfile, lockfile
10/10Demonstrated agent practice — 22 of the last 100 commits agent-authored or agent-credited
5/8Automated maintenance — dependency automation configured, none observed in the sampled commits
9/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 9
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_share0.22
toolchain_manifestsrust/Cargo.toml, rust/ruby-rbs-sys/Cargo.toml, rust/ruby-rbs/Cargo.toml
dependency_bot_commit_share0
How it's scored
0/45Type-checkable code — Ruby without a type-check config
53.9/55Manageable file sizes — 9/437 source files over 60KB
Inputs used
primary_languageRuby
largest_source_bytes243,415
source_files_sampled437
oversized_source_files9
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples
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

2,181GitHub stars
98contributors
1,036commits, last 12 months
1days since last push
92releases
1bus factor
139open issues
crates.io, RubyGemspackage ecosystems

Data collection warnings

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

More detail

Star and fork history 0 ★ / 256 ⇿
0Stars
256Forks
92Releases

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.

05010015020025030025472019-052023-012026-09
Major 2Minor 15Patch 38

Each point covers 7 days.

OpenSSF Scorecard 7.0 / 10
7.0aggregate

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 · 2026-09-20 03:41 UTC

10Binary-Artifactsno binaries found in the repo
3Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests13 out of 13 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
9Code-ReviewFound 12/13 approved changesets -- score normalized to 9
10Contributorsproject has 88 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 4 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
9Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 9
0SASTSAST tool is not run on all commits -- score normalized to 0
10Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
7Vulnerabilities3 existing vulnerabilities detected
Direct dependencies 37
RegistryPackageVersion constraintManifest
RubyGemsrake—Gemfile
RubyGemsrake-compiler—Gemfile
RubyGemstest-unit—Gemfile
RubyGemsrspec—Gemfile
RubyGemsrubocop—Gemfile
RubyGemsrubocop-rubycw—Gemfile
RubyGemsrubocop-on-rbs—Gemfile
RubyGemsjson—Gemfile
RubyGemsjson-schema—Gemfile
RubyGemsgoodcheck—Gemfile
RubyGemsdigest—Gemfile
RubyGemstempfile—Gemfile
RubyGemsrdoc—Gemfile
RubyGemsfileutils—Gemfile
RubyGemsraap—Gemfile
RubyGemsactivesupport~> 7.0Gemfile
RubyGemsextconf_compile_commands_json—Gemfile
RubyGemsirb—Gemfile
RubyGemsabbrev—Gemfile
RubyGemsbase64—Gemfile
RubyGemsbigdecimal—Gemfile
RubyGemsdbm—Gemfile
RubyGemsmutex_m—Gemfile
RubyGemsnkf—Gemfile
RubyGemsstackprof—Gemfile
RubyGemsmemory_profiler—Gemfile
RubyGemsbenchmark-ips—Gemfile
RubyGemsrbs-amber—Gemfile
RubyGemsnet-smtp—Gemfile
RubyGemscsv—Gemfile
RubyGemsostruct—Gemfile
RubyGemspstore—Gemfile
RubyGemstimeout—Gemfile
RubyGemsrbs—steep/Gemfile
RubyGemssteep—steep/Gemfile
RubyGemsruby-lsp—steep/Gemfile
RubyGemstest-unit—steep/Gemfile
All dependencies 153

Full resolved dependency set from the GitHub dependency graph: 35 direct and 118 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
RubyGemsabbrev0.1.2direct
RubyGemsactivesupport7.2.3direct
RubyGemsbase640.3.0direct
RubyGemsbenchmark-ips2.15.1direct
RubyGemsbigdecimal4.1.2direct
RubyGemscsv3.3.6direct
RubyGemsdbm1.1.0direct
RubyGemsdigest3.2.1direct
RubyGemsextconf_compile_commands_json0.0.7direct
RubyGemsfileutils1.8.0direct
RubyGemsgoodcheck3.1.0direct
RubyGemsirb1.18.0direct
RubyGemsjson2.21.2direct
RubyGemsjson-schema6.2.0direct
RubyGemsmemory_profiler1.1.0direct
RubyGemsmutex_m0.3.0direct
RubyGemsnet-smtp0.5.1direct
RubyGemsnkf0.3.0direct
RubyGemsostruct0.6.3direct
RubyGemspstore0.2.1direct
RubyGemsraap2.0.0direct
RubyGemsrake13.4.2direct
RubyGemsrake-compiler1.3.1direct
RubyGemsrbs4.2.0direct
RubyGemsrdoc8.0.0direct
RubyGemsrspec3.13.2direct
RubyGemsrubocop1.90.0direct
RubyGemsrubocop-on-rbs2.0.0direct
RubyGemsrubocop-rubycw0.2.2direct
RubyGemsruby-lsp0.26.11direct
RubyGemsstackprof0.2.28direct
RubyGemssteep2.1.0direct
RubyGemstempfile0.3.1direct
RubyGemstest-unit3.7.8direct
RubyGemstimeout0.6.1direct
crates.ioaho-corasick1.1.3indirect
crates.iobindgen—indirect
crates.iobindgen0.72.0indirect
crates.iobitflags2.9.1indirect
crates.iocc—indirect
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.ioerrno0.3.14indirect
crates.iofastrand2.5.0indirect
crates.iogetrandom0.4.3indirect
crates.ioglob0.3.2indirect
crates.iohashbrown0.17.1indirect
crates.ioindexmap2.14.0indirect
crates.ioitertools0.13.0indirect
crates.ioitoa1.0.18indirect
crates.iolibc0.2.189indirect
crates.iolibloading0.8.8indirect
crates.iolinux-raw-sys0.12.1indirect
crates.iolog0.4.27indirect
crates.iomemchr2.7.5indirect
crates.iominimal-lexical0.2.1indirect
crates.ionom7.1.3indirect
crates.ioonce_cell1.21.4indirect
crates.ioprettyplease0.2.35indirect
crates.ioproc-macro21.0.95indirect
crates.ioquote1.0.40indirect
crates.ior-efi6.0.0indirect
crates.ioregex1.11.1indirect
crates.ioregex-automata0.4.9indirect
crates.ioregex-syntax0.8.5indirect
crates.ioruby-rbs-sys—indirect
crates.iorustc-hash2.1.1indirect
crates.iorustix1.1.4indirect
crates.ioryu1.0.23indirect
crates.ioserde—indirect
crates.ioserde1.0.229indirect
crates.ioserde_core1.0.229indirect
crates.ioserde_derive1.0.229indirect
crates.ioserde_yaml—indirect
crates.ioserde_yaml0.9.34+deprecatedindirect
crates.ioshlex1.3.0indirect
crates.iosyn2.0.104indirect
crates.iosyn3.0.3indirect
crates.iotempfile—indirect
crates.iotempfile3.27.0indirect
crates.iounicode-ident1.0.18indirect
crates.iounsafe-libyaml0.2.11indirect
crates.iowindows-link0.2.1indirect
crates.iowindows-sys0.61.2indirect
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-rust—indirect
crates.ioxxhash-rust0.8.15indirect
RubyGemsaddressable2.9.0indirect
RubyGemsast2.4.3indirect
RubyGemsbenchmark0.5.0indirect
RubyGemsconcurrent-ruby1.3.8indirect
RubyGemsconnection_pool3.0.2indirect
RubyGemsdiff-lcs1.6.2indirect
RubyGemsdrb2.2.3indirect
RubyGemserb6.0.7indirect
RubyGemsffi1.17.4indirect
RubyGemsi18n1.15.2indirect
RubyGemsio-console0.9.2indirect
RubyGemsjar-dependencies—indirect
RubyGemslanguage_server-protocol3.17.0.6indirect
RubyGemslint_roller1.1.0indirect
RubyGemslisten3.10.0indirect
RubyGemslogger—indirect
RubyGemslogger1.7.0indirect
RubyGemsmarcel1.2.1indirect
RubyGemsminitest6.0.6indirect
RubyGemsminitest-mock5.27.0indirect
RubyGemsnet-protocol0.3.0indirect
RubyGemsparallel2.1.0indirect
RubyGemsparser3.3.12.0indirect
RubyGemspower_assert3.1.0indirect
RubyGemspp0.6.4indirect
RubyGemsprettyprint0.2.0indirect
RubyGemsprism—indirect
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
RubyGemsreline0.7.0indirect
RubyGemsrspec-core3.13.6indirect
RubyGemsrspec-expectations3.13.5indirect
RubyGemsrspec-mocks3.13.8indirect
RubyGemsrspec-support3.13.7indirect
RubyGemsrubocop-ast1.50.0indirect
RubyGemsruby-progressbar1.13.0indirect
RubyGemssecurerandom0.4.1indirect
RubyGemsstringio3.2.0indirect
RubyGemsstrong_json2.1.2indirect
RubyGemsstrscan3.1.8indirect
RubyGemsterminal-table4.0.0indirect
RubyGemstsort—indirect
RubyGemstsort0.2.0indirect
RubyGemstzinfo2.0.6indirect
RubyGemsunicode-display_width3.2.0indirect
RubyGemsunicode-emoji4.2.0indirect
RubyGemsuri1.1.1indirect
RubyGemszlib3.2.3indirect
Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 142 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 1 are direct. 11 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

PackageVersionRelationSeverityAdvisoriesFixed in
activesupport7.2.3directhigh38.1.2.1

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.

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 v0.34.0 — full methodology · metrics wiki.

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