Public recordExcellent
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-19 09:00 UTC
spring-cloud / spring-cloud-bus
Spring Cloud event bus
spring-cloud/spring-cloud-bus holds a health index of 92 out of 100, placing it in the Excellent band. It scores highest on Vitality (88/100) and lowest on AI Readiness (52/100). It was last updated 5 days ago. A single contributor accounts for most of its recent work.
92
overall / 100Software 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.
92
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 78 is calibrated to 92 on the published index scale (record calibration 2026-08-02).
Ownership
Spring CloudOrganization
2,758 followers34 public repossince Jun 2014
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 |
|---|---|---|---|---|---|
| Maven | org.springframework.cloud:spring-cloud-bus | 5.1.0-M1 | - | 59 | 24 days ago |
| Maven | org.springframework.cloud:spring-cloud-bus-tests | 5.1.0-M1 | - | 42 | 24 days ago |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-amqp | 5.1.0-M1 | - | 61 | 24 days ago |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-kafka | 5.1.0-M1 | - | 55 | 24 days ago |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-stream | 5.1.0-M1 | - | 30 | 24 days ago |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
88
Development activity
85Excellent
How it's scored
| 36/36 | Push recency — last push 5 days ago |
| 21.5/36 | Commit cadence — 31/52 weeks with commits |
| 17.8/18 | Commit volume — 96 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 96 |
| human_commit_share | 0.86 |
| days_since_last_push | 5 |
| active_weeks_last_year | 31 |
Release discipline
92Excellent
How it's scored
| 27/27 | Ships releases — 17 releases published |
| 36/36 | Release recency — latest release 24 days ago |
| 19.8/27 | Release cadence — a release every ~56.8 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 17 |
| latest_release_tag | v5.1.0-M1 |
| releases_from_tags | no |
| days_since_latest_release | 24 |
| mean_days_between_releases | 56.8 |
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?
82
Popularity & adoption
72Good
How it's scored
| 43/60 | Stars — 447 stars |
| 19.9/25 | Forks — 248 forks |
| 9.4/15 | Watchers — 50 watchers |
Inputs used
| forks | 248 |
| stars | 447 |
| watchers | 50 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
93Exceptional
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 |
| 7.2/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| readme_badges | — |
| has_contributing | yes |
| has_issue_template | yes |
| has_code_of_conduct | yes |
| readme_badge_services | — |
| has_pull_request_template | no |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
69
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 10.8/22.5 | Commit distribution — top contributor authored 52% of commits |
| 13.5/13.5 | Contributor breadth — 23 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 10 contributing companies or organizations |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 23 |
| top_contributor_share | 0.519 |
How it's scored
| 37.7/42 | Issue resolution — 90% of issues closed |
| 21.8/30 | PR acceptance — 104/143 decided PRs merged |
| 4.3/13 | Newcomer PR acceptance — 1/3 first-time contributors' PRs merged in 30d |
| 1.5/15 | OpenSSF Scorecard: Code-Review — Found 3/21 approved changesets -- score normalized to 1 |
Inputs used
| merged_prs | 104 |
| open_issues | 20 |
| closed_issues | 177 |
| prs_merged_7d | 0 |
| prs_decided_7d | 0 |
| prs_merged_30d | 8 |
| prs_decided_30d | 11 |
| issue_closed_ratio | 0.898 |
| closed_unmerged_prs | 39 |
| first_time_authors_30d | 1 |
| first_time_prs_merged_30d | 1 |
| first_time_prs_decided_30d | 3 |
Ownership & stewardship
78Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 24.7/25 | Owner reach — 2,758 followers of spring-cloud |
| 23.2/25 | Track record — 34 public repos, account ~12 yr old |
Inputs used
| followers | 2,758 |
| owner_type | Organization |
| is_verified | no |
| owner_login | spring-cloud |
| public_repos | 34 |
| account_age_days | 4,517 |
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 5 package(s) on maven |
| 35/35 | Publish recency — latest publish 24 days ago |
| 20/20 | Version history — 61 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | org.springframework.cloud:spring-cloud-bus, org.springframework.cloud:spring-cloud-bus-tests, org.springframework.cloud:spring-cloud-starter-bus-amqp, org.springframework.cloud:spring-cloud-starter-bus-kafka, org.springframework.cloud:spring-cloud-starter-bus-stream |
| ecosystems | maven |
| any_deprecated | no |
| min_days_since_publish | 24 |
Engineering Quality
Are baseline engineering and documentation practices in place?
84
Engineering practices
74Good
How it's scored
| 24/24 | CI workflows — 9 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 6.4/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 11 out of 11 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 | no |
| has_precommit_config | no |
Documentation
100Exceptional
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 15/15 | Documentation / homepage site — http://cloud.spring.io/spring-cloud-bus/ |
| 10/10 | Repository description |
| 10/10 | Topics — 8 topics |
| 10/10 | Wiki |
Inputs used
| topics | java, spring, spring-boot, spring-cloud, microservices, messaging, cloud-native, spring-cloud-core |
| has_wiki | yes |
| homepage | http://cloud.spring.io/spring-cloud-bus/ |
| docs_site | http://cloud.spring.io/spring-cloud-bus/ |
| has_readme | yes |
| has_docs_dir | yes |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
72
Security posture
65Good
How it's scored
| 6.8/7.5 | Binary-Artifacts — binaries present in source code |
| 2.2/7.5 | Branch-Protection — branch protection is not maximal on development and all release branches |
| 2.5/2.5 | CI-Tests — 11 out of 11 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 |
| 0.8/7.5 | Code-Review — Found 3/21 approved changesets -- score normalized to 1 |
| 2.5/2.5 | Contributors — project has 10 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 0/5 | Fuzzing — project is not fuzzed |
| 2.5/2.5 | License — license file detected |
| 7.5/7.5 | Maintained — 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — no data |
| 5/5 | Pinned-Dependencies — all dependencies are pinned |
| 0/5 | SAST — SAST tool is not run on all commits -- score normalized to 0 |
| 5/5 | Security-Policy — security policy file detected |
| 0/7.5 | Signed-Releases — no data |
| 0/7.5 | Token-Permissions — detected GitHub workflow tokens with excessive permissions |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 6.5 |
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.
Dependency advisories
100Exceptional
How it's scored
| 35/35 | Direct dependencies free of known advisories — no direct dependency carries a known advisory |
| 25/25 | Indirect dependencies free of known advisories — no indirect dependency carries a known advisory |
| 0/40 | No advisories left outstanding — no advisory carries a publication date |
Inputs used
| source | osv |
| advisories | 0 |
| affected_packages | 0 |
| assessed_packages | 31 |
| unassessed_packages | 0 |
| affected_by_severity | none |
| direct_affected_packages | 0 |
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the maven:org.springframework.cloud:spring-cloud-bus@5.1.0-M1 runtime dependency closure — what installing the published package pulls in — 31 packages. 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.
52
Agent context & guidance
12Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 11.8/40 | Legible commit history — 19 of 86 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | 0.221 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
64Moderate
How it's scored
| 12.6/18 | One-command bootstrap — docs/pom.xml, pom.xml, spring-cloud-bus-dependencies/pom.xml (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — Java (statically typed) |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 8/8 | Automated maintenance — 14 of the last 100 commits are automated dependency updates |
| 10/10 | OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | — |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | docs/pom.xml, pom.xml, spring-cloud-bus-dependencies/pom.xml, spring-cloud-bus-tests/pom.xml, spring-cloud-bus/pom.xml, spring-cloud-starter-bus-amqp/pom.xml, spring-cloud-starter-bus-kafka/pom.xml, spring-cloud-starter-bus-stream/pom.xml |
| dependency_bot_commit_share | 0.14 |
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — Java (statically typed) |
| 55/55 | Manageable file sizes — 0/56 source files over 60KB |
Inputs used
| primary_language | Java |
| largest_source_bytes | 18,402 |
| source_files_sampled | 56 |
| oversized_source_files | 0 |
Key facts
447GitHub stars
23contributors
96commits, last 12 months
5days since last push
17releases
1bus factor
20open issues
Maven, npmpackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
More detail
Star and fork history 0 ★ / 248 ⇿
0Stars
248Forks
16Releases
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 0Minor 0Patch 8
Each point covers 12 days.
OpenSSF Scorecard 6.5 / 10
6.5aggregate
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).
| 9 | Binary-Artifacts | binaries present in source code |
| 3 | Branch-Protection | branch protection is not maximal on development and all release branches |
| 10 | CI-Tests | 11 out of 11 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 |
| 1 | Code-Review | Found 3/21 approved changesets -- score normalized to 1 |
| 10 | Contributors | project has 10 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 |
| n/a | Packaging | packaging workflow not detected |
| 10 | Pinned-Dependencies | all dependencies are pinned |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 10 | Security-Policy | security policy file detected |
| n/a | Signed-Releases | no releases found |
| 0 | Token-Permissions | detected GitHub workflow tokens with excessive permissions |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
Direct dependencies 25
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| Maven | org.springframework.cloud:spring-cloud-bus-dependencies | ${project.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-commons-dependencies | ${spring-cloud-commons.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-test-support | ${spring-cloud-commons.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-stream | ${spring-cloud-stream.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-stream-dependencies | ${spring-cloud-stream.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-function-dependencies | ${spring-cloud-function.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-function-rsocket | ${spring-cloud-function.version} | pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-amqp | ${project.version} | spring-cloud-bus-dependencies/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-kafka | ${project.version} | spring-cloud-bus-dependencies/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-stream | ${project.version} | spring-cloud-bus-dependencies/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-bus | ${project.version} | spring-cloud-bus-dependencies/pom.xml |
| Maven | org.springframework.boot:spring-boot-configuration-processor | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.boot:spring-boot-starter-actuator | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.boot:spring-boot-starter-web | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-stream | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.integration:spring-integration-core | — | spring-cloud-bus/pom.xml |
| Maven | tools.jackson.dataformat:jackson-dataformat-cbor | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.boot:spring-boot-autoconfigure-processor | — | spring-cloud-bus/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter-stream-rabbit | — | spring-cloud-starter-bus-amqp/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-bus | — | spring-cloud-starter-bus-amqp/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-starter-stream-kafka | — | spring-cloud-starter-bus-kafka/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-bus | — | spring-cloud-starter-bus-kafka/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-stream | — | spring-cloud-starter-bus-stream/pom.xml |
| Maven | org.springframework.cloud:spring-cloud-bus | — | spring-cloud-starter-bus-stream/pom.xml |
All dependencies 48
Full resolved dependency set from the GitHub dependency graph: 24 direct and 24 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| Maven | org.springframework.boot:spring-boot-autoconfigure-processor | — | direct |
| Maven | org.springframework.boot:spring-boot-configuration-processor | — | direct |
| Maven | org.springframework.boot:spring-boot-starter-actuator | — | direct |
| Maven | org.springframework.boot:spring-boot-starter-web | — | direct |
| Maven | org.springframework.cloud:spring-cloud-bus | — | direct |
| Maven | org.springframework.cloud:spring-cloud-bus | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-bus-dependencies | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-commons-dependencies | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-function-dependencies | 5.0.5-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-function-rsocket | 5.0.5-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-starter | — | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-amqp | — | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-amqp | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-kafka | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-bus-stream | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-stream-kafka | — | direct |
| Maven | org.springframework.cloud:spring-cloud-starter-stream-rabbit | — | direct |
| Maven | org.springframework.cloud:spring-cloud-stream | — | direct |
| Maven | org.springframework.cloud:spring-cloud-stream | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-stream-dependencies | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.cloud:spring-cloud-test-support | — | direct |
| Maven | org.springframework.cloud:spring-cloud-test-support | 5.0.4-SNAPSHOT | direct |
| Maven | org.springframework.integration:spring-integration-core | — | direct |
| Maven | tools.jackson.dataformat:jackson-dataformat-cbor | — | direct |
| Maven | io.spring.javaformat:spring-javaformat-maven-plugin | — | indirect |
| Maven | io.spring.maven.antora:antora-component-version-maven-plugin | — | indirect |
| Maven | org.antora:antora-maven-plugin | — | indirect |
| Maven | org.apache.maven.plugins:maven-antrun-plugin | — | indirect |
| Maven | org.apache.maven.plugins:maven-checkstyle-plugin | — | indirect |
| Maven | org.apache.maven.plugins:maven-dependency-plugin | — | indirect |
| Maven | org.codehaus.mojo:exec-maven-plugin | — | indirect |
| Maven | org.codehaus.mojo:flatten-maven-plugin | — | indirect |
| Maven | org.junit.vintage:junit-vintage-engine | — | indirect |
| Maven | org.springframework.boot:spring-boot-resttestclient | — | indirect |
| Maven | org.springframework.boot:spring-boot-starter-test | — | indirect |
| Maven | org.springframework.boot:spring-boot-starter-webflux | — | indirect |
| Maven | org.springframework.boot:spring-boot-testcontainers | — | indirect |
| Maven | org.springframework.boot:spring-boot-webtestclient | — | indirect |
| Maven | org.springframework.cloud:spring-cloud-stream-test-binder | — | indirect |
| Maven | org.testcontainers:testcontainers-junit-jupiter | — | indirect |
| Maven | org.testcontainers:testcontainers-rabbitmq | — | indirect |
| Maven | pl.project13.maven:git-commit-id-plugin | — | indirect |
| npm | @antora/atlas-extension | 1.0.0-alpha.6 | indirect |
| npm | @antora/collector-extension | 1.0.3 | indirect |
| npm | @asciidoctor/tabs | 1.0.0-beta.6 | indirect |
| npm | @springio/antora-extensions | 1.14.13 | indirect |
| npm | @springio/asciidoctor-extensions | 1.0.0-alpha.18 | indirect |
| npm | antora | 3.2.1 | indirect |
Dependency advisories 0
Installing maven:org.springframework.cloud:spring-cloud-bus@5.1.0-M1 pulls in 31 packages, direct and transitive: 0 carry known advisories, of which 0 are direct dependencies.
No known advisories affect the assessed dependencies.
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 — Maven.