Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-19 08:19 UTC

smallrye / smallrye-mutiny-zero

Zero-dependency Reactive Streams publishers library

JavaApache-2.0★ 24 stars⑂ 5 forkssince Jun 2021View on GitHub ↗

smallrye/smallrye-mutiny-zero holds a health index of 80 out of 100, placing it in the Excellent band. It scores highest on Vitality (85/100) and lowest on Community & Adoption (47/100). It was last updated 5 days ago. A single contributor accounts for most of its recent work.

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.

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 68 is calibrated to 80 on the published index scale (record calibration 2026-08-02).

Ownership

SmallRyeOrganization · verified domain

180 followers54 public repossince May 2018

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	io.smallrye.reactive:mutiny-zero	1.3.1	-	17	45 days ago
Maven	io.smallrye.reactive:mutiny-zero-flow-adapters	1.3.1	-	10	45 days ago
Maven	io.smallrye.reactive:mutiny-zero-vertx-publishers	1.3.1	-	9	45 days ago
Maven	io.smallrye.reactive:mutiny-zero-reactive-streams-junit5-tck	1.3.1	-	13	45 days ago

Metrics by category

Vitality

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

85Excellent · 21% of overall

Development activity

93Exceptional

How it's scored

36/36	Push recency — last push 5 days ago
29.1/36	Commit cadence — 42/52 weeks with commits
17.6/18	Commit volume — 89 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 29 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	89
human_commit_share	0.12
days_since_last_push	5
active_weeks_last_year	42

Release discipline

74Good

How it's scored

27/27	Ships releases — 15 releases published
27/36	Release recency — latest release 144 days ago
12.6/27	Release cadence — a release every ~157.8 days
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	15
latest_release_tag	1.2.1
releases_from_tags	no
days_since_latest_release	144
mean_days_between_releases	157.8

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?

47Weak · 17% of overall

Popularity & adoption

27At Risk

How it's scored

22.1/60	Stars — 24 stars
5/25	Forks — 5 forks
0/15	Watchers — 1 watchers

Inputs used

forks	5
stars	24
watchers	1
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

70Good

How it's scored

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

Inputs used

has_readme	yes
has_license	yes
readme_badges	2
has_contributing	yes
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	github.com, shields.io
has_pull_request_template	no

Sustainability & Governance

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

72Good · 23% of overall

Maintainer resilience (bus factor)

29At Risk

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
3.3/22.5	Commit distribution — top contributor authored 85% of commits
6.8/13.5	Contributor breadth — 5 contributors
10/10	OpenSSF Scorecard: Contributors — project has 11 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	5
top_contributor_share	0.854

Issue & PR responsiveness

81Excellent

How it's scored

42/42	Issue resolution — 100% of issues closed
26.7/30	PR acceptance — 326/366 decided PRs merged
0/13	Newcomer PR acceptance — no first-time contributor's PR decided in 30d
1.5/15	OpenSSF Scorecard: Code-Review — Found 1/9 approved changesets -- score normalized to 1

Inputs used

merged_prs	326
open_issues	0
closed_issues	9
prs_merged_7d	0
prs_decided_7d	0
prs_merged_30d	0
prs_decided_30d	0
issue_closed_ratio	1
closed_unmerged_prs	40
first_time_authors_30d	0
first_time_prs_merged_30d	0
first_time_prs_decided_30d	0

Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.

Ownership & stewardship

91Excellent

How it's scored

30/30	Ownership backing — organization-owned
20/20	Verified domain
16.2/25	Owner reach — 180 followers of smallrye
24.7/25	Track record — 54 public repos, account ~8 yr old

Inputs used

followers	180
owner_type	Organization
is_verified	yes
owner_login	smallrye
public_repos	54
account_age_days	3,092

Package maintenance

100Exceptional

How it's scored

25/25	Published & resolvable — 4 package(s) on maven
35/35	Publish recency — latest publish 45 days ago
20/20	Version history — 17 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	io.smallrye.reactive:mutiny-zero, io.smallrye.reactive:mutiny-zero-flow-adapters, io.smallrye.reactive:mutiny-zero-vertx-publishers, io.smallrye.reactive:mutiny-zero-reactive-streams-junit5-tck
ecosystems	maven
any_deprecated	no
min_days_since_publish	45

Engineering Quality

Are baseline engineering and documentation practices in place?

72Good · 19% of overall

Engineering practices

66Good

How it's scored

24/24	CI workflows — 5 workflow(s)
24/24	Tests present
0/16	Linter config
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
18/20	OpenSSF Scorecard: CI-Tests — 25 out of 26 merged PRs checked by a CI test -- score normalized to 9

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	no
has_linter_config	no
has_precommit_config	no

Documentation

80Excellent

How it's scored

30/30	README
25/25	Documentation directory
15/15	Documentation / homepage site — https://smallrye.io/smallrye-mutiny-zero/
10/10	Repository description
0/10	Topics
0/10	Wiki

Inputs used

topics	—
has_wiki	no
homepage	https://smallrye.io/smallrye-mutiny-zero/
docs_site	https://smallrye.io/smallrye-mutiny-zero/
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?

63Moderate · 16% of overall

Security posture

54Moderate

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
2.2/7.5	Branch-Protection — branch protection is not maximal on development and all release branches
2.2/2.5	CI-Tests — 25 out of 26 merged PRs checked by a CI test -- score normalized to 9
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0.8/7.5	Code-Review — Found 1/9 approved changesets -- score normalized to 1
2.5/2.5	Contributors — project has 11 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 — 29 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
0/5	Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
0/5	Security-Policy — security policy file not 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	5.4

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	1
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:io.smallrye.reactive:mutiny-zero@1.3.1 runtime dependency closure — what installing the published package pulls in — 1 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.

57Moderate · 4% of overall

Agent context & guidance

25At Risk

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15	Machine-readable docs (llms.txt) — llms.txt served by the project website (https://smallrye.io/llms.txt)
0/40	Legible commit history — no data

Inputs used

has_llms_txt	yes
llms_txt_url	https://smallrye.io/llms.txt
legible_history_share	—
agent_instruction_files	—
agent_instruction_max_bytes	—

Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.

Verify loop (build / test / typecheck)

64Moderate

How it's scored

12.6/18	One-command bootstrap — mutiny-zero-flow-adapters/pom.xml, mutiny-zero-reactive-streams-junit5-tck/pom.xml, mutiny-zero-vertx-publishers/pom.xml (toolchain convention, no task runner)
22/22	Automated tests
0/11	Lint / format config
11/11	Static type checking — Java (statically typed)
10/10	Reproducible environment — lockfile
0/10	Demonstrated agent practice — no agent-authored commits among the last 100
8/8	Automated maintenance — 80 of the last 100 commits are automated dependency updates
0/10	OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0

Inputs used

has_nix	no
has_tests	yes
lockfiles	uv.lock
has_dockerfile	no
typed_language	yes
bootstrap_files	—
has_devcontainer	no
has_linter_config	no
typecheck_configs	—
agent_commit_share	0
toolchain_manifests	mutiny-zero-flow-adapters/pom.xml, mutiny-zero-reactive-streams-junit5-tck/pom.xml, mutiny-zero-vertx-publishers/pom.xml, mutiny-zero/pom.xml, pom.xml
dependency_bot_commit_share	0.8

Code legibility for models

100Exceptional

How it's scored

45/45	Type-checkable code — Java (statically typed)
55/55	Manageable file sizes — 0/99 source files over 60KB

Inputs used

primary_language	Java
largest_source_bytes	43,166
source_files_sampled	99
oversized_source_files	0

Key facts

24GitHub stars

5contributors

89commits, last 12 months

5days since last push

15releases

1bus factor

0open issues

Maven, PyPIpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
Could not fetch pypi package 'mutiny-zero' from its registry

More detail

Star and fork history 0 ★ / 5 ⇿

0Stars

5Forks

8Releases

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 3Patch 2

Each point covers 4 days.

OpenSSF Scorecard 5.4 / 10

5.4aggregate

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 08:19 UTC

10	Binary-Artifacts	no binaries found in the repo
3	Branch-Protection	branch protection is not maximal on development and all release branches
9	CI-Tests	25 out of 26 merged PRs checked by a CI test -- score normalized to 9
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
1	Code-Review	Found 1/9 approved changesets -- score normalized to 1
10	Contributors	project has 11 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	29 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
0	Pinned-Dependencies	dependency not pinned by hash detected -- score normalized to 0
0	SAST	SAST tool is not run on all commits -- score normalized to 0
0	Security-Policy	security policy file not 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 16

Registry	Package	Version constraint	Manifest
Maven	org.reactivestreams:reactive-streams	`—`	mutiny-zero-flow-adapters/pom.xml
Maven	org.jspecify:jspecify	`—`	mutiny-zero-flow-adapters/pom.xml
Maven	org.reactivestreams:reactive-streams	`—`	mutiny-zero-reactive-streams-junit5-tck/pom.xml
Maven	io.smallrye.reactive:mutiny-zero	`${project.version}`	mutiny-zero-vertx-publishers/pom.xml
Maven	io.vertx:vertx-core	`${vertx.version}`	mutiny-zero-vertx-publishers/pom.xml
Maven	org.jspecify:jspecify	`—`	mutiny-zero-vertx-publishers/pom.xml
Maven	org.jspecify:jspecify	`—`	mutiny-zero/pom.xml
Maven	org.jspecify:jspecify	`${jspecify.version}`	pom.xml
Maven	org.reactivestreams:reactive-streams	`${reactive-streams.version}`	pom.xml
Maven	org.revapi:revapi-java	`${revapi-java.version}`	pom.xml
Maven	org.revapi:revapi-reporter-json	`${revapi-reporter-json.version}`	pom.xml
Maven	org.revapi:revapi-reporter-text	`${revapi-reporter-text.version}`	pom.xml
PyPI	mkdocs-material	`>=9.5.48`	pyproject.toml
PyPI	mkdocs	`>=1.6.1`	pyproject.toml
PyPI	mkdocs-macros-plugin	`>=1.3.7`	pyproject.toml
PyPI	mike	`>=2.1.3`	pyproject.toml

All dependencies 73

Full resolved dependency set from the GitHub dependency graph: 13 direct and 60 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
Maven	io.smallrye.reactive:mutiny-zero	`1.3.2-SNAPSHOT`	direct
Maven	io.vertx:vertx-core	`—`	direct
Maven	org.jspecify:jspecify	`—`	direct
Maven	org.jspecify:jspecify	`1.0.1`	direct
Maven	org.reactivestreams:reactive-streams	`—`	direct
Maven	org.reactivestreams:reactive-streams	`1.0.4`	direct
Maven	org.revapi:revapi-java	`0.28.4`	direct
Maven	org.revapi:revapi-reporter-json	`0.5.1`	direct
Maven	org.revapi:revapi-reporter-text	`0.15.1`	direct
PyPI	mike	`2.2.0`	direct
PyPI	mkdocs	`1.6.1`	direct
PyPI	mkdocs-macros-plugin	`1.5.0`	direct
PyPI	mkdocs-material	`9.7.7`	direct
Maven	biz.aQute.bnd:bnd-maven-plugin	`—`	indirect
Maven	ch.qos.logback:logback-classic	`—`	indirect
Maven	ch.qos.logback:logback-classic	`1.6.5`	indirect
Maven	io.smallrye.reactive:mutiny	`—`	indirect
Maven	io.smallrye.reactive:mutiny	`3.3.0`	indirect
Maven	org.apache.maven.plugins:maven-compiler-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-jar-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-javadoc-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-source-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-surefire-plugin	`—`	indirect
Maven	org.assertj:assertj-core	`—`	indirect
Maven	org.assertj:assertj-core	`3.27.7`	indirect
Maven	org.awaitility:awaitility	`—`	indirect
Maven	org.awaitility:awaitility	`4.3.0`	indirect
Maven	org.junit.jupiter:junit-jupiter	`—`	indirect
Maven	org.junit.jupiter:junit-jupiter	`6.1.3`	indirect
Maven	org.junit.support:testng-engine	`—`	indirect
Maven	org.junit.support:testng-engine	`1.1.0`	indirect
Maven	org.junit.vintage:junit-vintage-engine	`—`	indirect
Maven	org.junit.vintage:junit-vintage-engine	`6.1.3`	indirect
Maven	org.reactivestreams:reactive-streams-tck	`—`	indirect
Maven	org.reactivestreams:reactive-streams-tck	`1.0.4`	indirect
Maven	org.reactivestreams:reactive-streams-tck-flow	`—`	indirect
Maven	org.reactivestreams:reactive-streams-tck-flow	`1.0.4`	indirect
Maven	org.revapi:revapi-maven-plugin	`0.15.1`	indirect
Maven	org.testng:testng	`—`	indirect
Maven	org.testng:testng	`7.12.0`	indirect
PyPI	babel	`2.18.0`	indirect
PyPI	backrefs	`8.0`	indirect
PyPI	certifi	`2026.7.22`	indirect
PyPI	charset-normalizer	`3.4.9`	indirect
PyPI	click	`8.4.2`	indirect
PyPI	colorama	`0.4.6`	indirect
PyPI	ghp-import	`2.1.0`	indirect
PyPI	hjson	`3.1.0`	indirect
PyPI	idna	`3.18`	indirect
PyPI	jinja2	`3.1.6`	indirect
PyPI	markdown	`3.10.3`	indirect
PyPI	markupsafe	`3.0.3`	indirect
PyPI	mergedeep	`1.3.4`	indirect
PyPI	mkdocs-get-deps	`0.2.2`	indirect
PyPI	mkdocs-material-extensions	`1.3.1`	indirect
PyPI	mutiny-zero	`999`	indirect
PyPI	packaging	`26.3`	indirect
PyPI	paginate	`0.5.7`	indirect
PyPI	pathspec	`1.1.1`	indirect
PyPI	platformdirs	`4.11.2`	indirect
PyPI	pygments	`2.20.0`	indirect
PyPI	pymdown-extensions	`11.0.1`	indirect
PyPI	pyparsing	`3.3.2`	indirect
PyPI	python-dateutil	`2.9.0.post0`	indirect
PyPI	pyyaml	`6.0.3`	indirect
PyPI	pyyaml-env-tag	`1.1`	indirect
PyPI	requests	`2.34.2`	indirect
PyPI	six	`1.17.0`	indirect
PyPI	super-collections	`0.6.2`	indirect
PyPI	termcolor	`3.3.0`	indirect
PyPI	urllib3	`2.8.0`	indirect
PyPI	verspec	`0.1.0`	indirect
PyPI	watchdog	`6.0.0`	indirect

Dependency advisories 0

Installing maven:io.smallrye.reactive:mutiny-zero@1.3.1 pulls in 1 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.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

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