Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-30 04:05 UTC

streamnative / pulsar-rs

Rust Client library for Apache Pulsar

RustCustom license★ 411 stars⑂ 145 forkssince Oct 2018View on GitHub ↗
KindLibraryhow this is determined
#pulsar#rust

streamnative/pulsar-rs holds a health index of 78 out of 100, placing it in the Good band. It scores highest on Sustainability & Governance (79/100) and lowest on Security (43/100). It was last updated 5 days ago. 2 contributors account for most of its recent work.

78
overall / 100
Good

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.

78
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 67 is calibrated to 78 on the published index scale (record calibration 2026-08-02).

Ownership

StreamNativeOrganization · verified domain
243 followers115 public repossince Oct 2018

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

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iopulsar6.9.0134,263445 days agoapiclientpulsar

Metrics by category

Vitality

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

77Good · 21% of overall

Development activity

67Good
How it's scored
36/36Push recency — last push 5 days ago
15.2/36Commit cadence — 22/52 weeks with commits
13.9/18Commit volume — 34 commits in the last year
2/10OpenSSF Scorecard: Maintained — 2 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 2
Inputs used
commits_last_year34
human_commit_share1
days_since_last_push5
active_weeks_last_year22

Release discipline

92Excellent
How it's scored
27/27Ships releases — 24 releases published
36/36Release recency — latest release 5 days ago
19.8/27Release cadence — a release every ~61.3 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count24
latest_release_tagv6.9.0
releases_from_tagsno
days_since_latest_release5
mean_days_between_releases61.3
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?

64Moderate · 17% of overall

Popularity & adoption

69Good
How it's scored
42.4/60Stars — 411 stars
18/25Forks — 145 forks
8.5/15Watchers — 35 watchers
Inputs used
forks145
stars411
watchers35
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history

Community health

44Weak
How it's scored
22.5/22.5README
16.9/22.5License — license file present, not a recognized license
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges2
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno

Ecosystem adoption (downloads)

86Excellent
How it's scored
68.4/80Monthly downloads — 134,263 downloads/month across crates
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagespulsar
dependents—
ecosystemscrates
total_downloads2,311,982
monthly_downloads134,263
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?

79Good · 23% of overall

Maintainer resilience (bus factor)

61Moderate
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
12.5/22.5Commit distribution — top contributor authored 44% of commits
13.5/13.5Contributor breadth — 70 contributors
10/10OpenSSF Scorecard: Contributors — project has 20 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled70
top_contributor_share0.443

Issue & PR responsiveness

72Good
How it's scored
27.4/42Issue resolution — 65% of issues closed
25.9/30PR acceptance — 184/213 decided PRs merged
6.5/13Newcomer PR acceptance — 1/2 first-time contributors' PRs merged in 30d
12/15OpenSSF Scorecard: Code-Review — Found 25/30 approved changesets -- score normalized to 8
Inputs used
merged_prs184
open_issues68
closed_issues128
prs_merged_7d1
prs_decided_7d2
prs_merged_30d1
prs_decided_30d2
issue_closed_ratio0.653
closed_unmerged_prs29
first_time_authors_30d2
first_time_prs_merged_30d1
first_time_prs_decided_30d2

Ownership & stewardship

92Excellent
How it's scored
30/30Ownership backing — organization-owned
20/20Verified domain
17.2/25Owner reach — 243 followers of streamnative
25/25Track record — 115 public repos, account ~7 yr old
Inputs used
followers243
owner_typeOrganization
is_verifiedyes
owner_loginstreamnative
public_repos115
account_age_days2,859

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on crates
35/35Publish recency — latest publish 5 days ago
20/20Version history — 44 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagespulsar
ecosystemscrates
any_deprecatedno
min_days_since_publish5

Engineering Quality

Are baseline engineering and documentation practices in place?

66Good · 19% of overall

Engineering practices

66Good
How it's scored
24/24CI workflows — 1 workflow(s)
0/24Tests present
16/16Linter config — rustfmt.toml
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests — 30 out of 30 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsno
has_editorconfigyes
has_linter_configyes
has_precommit_configno

Documentation

65Good
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://docs.rs/pulsar
10/10Repository description
10/10Topics — 2 topics
0/10Wiki
Inputs used
topicspulsar, rust
has_wikino
homepage—
docs_sitehttps://docs.rs/pulsar
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

43Weak · 16% of overall

Security posture

43Weak
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.5/2.5CI-Tests — 30 out of 30 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
6/7.5Code-Review — Found 25/30 approved changesets -- score normalized to 8
2.5/2.5Contributors — project has 20 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
2.2/2.5License — license file detected
1.5/7.5Maintained — 2 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 2
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-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_aggregate4.3
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.

55Moderate · 4% of overall

Agent context & guidance

40Weak
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 85 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url—
legible_history_share0.85
agent_instruction_files—
agent_instruction_max_bytes—

Verify loop (build / test / typecheck)

35Weak
How it's scored
12.6/18One-command bootstrap — Cargo.toml (toolchain convention, no task runner)
0/22Automated tests
11/11Lint / format config — rustfmt.toml
11/11Static type checking — Rust (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
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsno
lockfiles—
has_dockerfileno
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configs—
agent_commit_share0
toolchain_manifestsCargo.toml
dependency_bot_commit_share0

Code legibility for models

95Exceptional
How it's scored
45/45Type-checkable code — Rust (statically typed)
50.4/55Manageable file sizes — 3/36 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes75,250
source_files_sampled36
oversized_source_files3

Machine-readable interfaces

100Exceptional
How it's scored
40/40API schema (OpenAPI/GraphQL/proto) — PulsarApi.proto
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_filesPulsarApi.proto
interfaces_expected_of—
Excluded from scoring (no data or not applicable): MCP server. Remaining weights renormalized.

Key facts

411GitHub stars
70contributors
34commits, last 12 months
5days since last push
24releases
2bus factor
68open issues
crates.iopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • No resolved dependencies carried a version and a supported ecosystem

More detail

Star and fork history 0 ★ / 145 ⇿
0Stars
145Forks
23Releases

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.

025507510012515013832019-042022-122026-08
Major 3Minor 10Patch 10

Each point covers 7 days.

OpenSSF Scorecard 4.3 / 10
4.3aggregate

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 · 2026-08-30 04:04 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
10CI-Tests30 out of 30 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
8Code-ReviewFound 25/30 approved changesets -- score normalized to 8
10Contributorsproject has 20 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
9Licenselicense file detected
2Maintained2 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 2
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
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 39
RegistryPackageVersion constraintManifest
crates.ioasync-channel^2.3.1Cargo.toml
crates.ioasync-trait^0.1.88Cargo.toml
crates.ioasync-std^1.13.1Cargo.toml
crates.ioasync-native-tls^0.5.0Cargo.toml
crates.ioasynchronous-codec^0.7.0Cargo.toml
crates.iobytes^1.9.0Cargo.toml
crates.iobase640.22Cargo.toml
crates.iochrono^0.4.41Cargo.toml
crates.iocrc^3.3.0Cargo.toml
crates.iodata-url^0.3.1Cargo.toml
crates.ioflate2^1.1.1Cargo.toml
crates.iofutures^0.3.31Cargo.toml
crates.iofutures-rustls^0.26.0Cargo.toml
crates.iolog^0.4.27Cargo.toml
crates.iolz4^1.28.0Cargo.toml
crates.iomurmur30.5.2Cargo.toml
crates.ionative-tls^0.2.12Cargo.toml
crates.ionom^7.1.3Cargo.toml
crates.ioopenidconnect^4.0.0Cargo.toml
crates.iooauth2^5.0.0Cargo.toml
crates.iopem^3.0.4Cargo.toml
crates.ioprost^0.13.4Cargo.toml
crates.ioprost-derive^0.13.4Cargo.toml
crates.iorand^0.8.5Cargo.toml
crates.ioreqwest0.13Cargo.toml
crates.ioregex^1.11.1Cargo.toml
crates.iorustls^0.23.27Cargo.toml
crates.iosnap^1.1.1Cargo.toml
crates.ioserde^1.0.219Cargo.toml
crates.ioserde_json^1.0.140Cargo.toml
crates.iotokio^1.45.0Cargo.toml
crates.iotokio-util^0.7.15Cargo.toml
crates.iotokio-rustls0.26.2Cargo.toml
crates.iotokio-native-tls^0.3.1Cargo.toml
crates.iotracing^0.1.41Cargo.toml
crates.iourl^2.5.4Cargo.toml
crates.iouuid^1.16.0Cargo.toml
crates.iowebpki-roots^1.0.0Cargo.toml
crates.iozstd^0.13.2Cargo.toml
All dependencies 43

Full resolved dependency set from the GitHub dependency graph: 39 direct and 4 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.ioasync-channel—direct
crates.ioasync-native-tls—direct
crates.ioasync-std—direct
crates.ioasync-trait—direct
crates.ioasynchronous-codec—direct
crates.iobase64—direct
crates.iobytes—direct
crates.iochrono—direct
crates.iocrc—direct
crates.iodata-url—direct
crates.ioflate2—direct
crates.iofutures—direct
crates.iofutures-rustls—direct
crates.iolog—direct
crates.iolz4—direct
crates.iomurmur3—direct
crates.ionative-tls—direct
crates.ionom—direct
crates.iooauth2—direct
crates.ioopenidconnect—direct
crates.iopem—direct
crates.ioprost—direct
crates.ioprost-derive—direct
crates.iorand—direct
crates.ioregex—direct
crates.ioreqwest—direct
crates.iorustls—direct
crates.ioserde—direct
crates.ioserde_json—direct
crates.iosnap—direct
crates.iotokio—direct
crates.iotokio-native-tls—direct
crates.iotokio-rustls—direct
crates.iotokio-util—direct
crates.iotracing—direct
crates.iourl—direct
crates.iouuid—direct
crates.iowebpki-roots—direct
crates.iozstd—direct
crates.ioassert_matches—indirect
crates.ioenv_logger—indirect
crates.ioprost-build—indirect
crates.ioprotobuf-src—indirect
Dependency advisories not assessed

Advisory matching could not run for this report: No resolved dependencies carried a version and a supported ecosystem

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 — crates.io.