Public recordModerate
Software health reportschema 0.27.0 · metrics 1.13.0 · 2026-07-26 20:23 UTC
smol-rs / async-channel
Async multi-producer multi-consumer channel
smol-rs/async-channel holds a health index of 60 out of 100, placing it in the Moderate band. It scores highest on Sustainability & Governance (72/100) and lowest on Vitality (44/100). It was last updated 13 days ago. 2 contributors account for most of its recent work.
60
overall / 100Software health index
Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At risk ceiling of 49. AI Readiness sits outside the overall score.
60
Excellent85-100Exemplary; meets essentially all checked criteria
Good70-84Healthy; minor gaps
Moderate50-69Acceptable with notable gaps; review recommended
At risk30-49Significant weaknesses; adoption warrants caution
Critical1-29Severe 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.
Ownership
smol-rsOrganization
428 followers32 public repossince Oct 2020
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 | Tags |
|---|---|---|---|---|---|---|
| crates.io | async-channel | 2.5.0 | 17,506,792 | 26 | 385 days ago | chanfuturesmpmcmpscspmcasynchronousconcurrency |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
44
Development activity
33At risk
How it's scored
| 28.8/36 | Push recency — last push 13 days ago |
| 0.7/36 | Commit cadence — 1/52 weeks with commits |
| 2.7/18 | Commit volume — 1 commits in the last year |
| 1/10 | OpenSSF Scorecard: Maintained — 1 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 1 |
Inputs used
| commits_last_year | 1 |
| human_commit_share | 0.99 |
| days_since_last_push | 13 |
| active_weeks_last_year | 1 |
Release discipline
60Moderate
How it's scored
| 27/27 | Ships releases — 15 releases published |
| 7.2/36 | Release recency — latest release 385 days ago |
| 19.8/27 | Release cadence — a release every ~81 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 15 |
| latest_release_tag | v2.5.0 |
| releases_from_tags | no |
| days_since_latest_release | 385 |
| mean_days_between_releases | 81 |
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?
70
Popularity & adoption
68Moderate
How it's scored
| 48.2/60 | Stars — 940 stars |
| 14.4/25 | Forks — 55 forks |
| 5/15 | Watchers — 9 watchers |
Inputs used
| forks | 55 |
| stars | 940 |
| watchers | 9 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
50Moderate
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 0/18 | 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 |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
100Excellent
How it's scored
| 80/80 | Monthly downloads — 17,506,792 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | async-channel |
| dependents | — |
| ecosystems | crates |
| total_downloads | 294,864,900 |
| monthly_downloads | 17,506,792 |
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?
72
Maintainer resilience (bus factor)
61Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 12.4/22.5 | Commit distribution — top contributor authored 45% of commits |
| 13.5/13.5 | Contributor breadth — 21 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 14 contributing companies or organizations |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 21 |
| top_contributor_share | 0.448 |
How it's scored
| 33.7/46.8 | Issue resolution — 72% of issues closed |
| 34.5/38.3 | PR acceptance — 55/61 decided PRs merged |
| 10.5/15 | OpenSSF Scorecard: Code-Review — Found 17/23 approved changesets -- score normalized to 7 |
Inputs used
| merged_prs | 55 |
| open_issues | 14 |
| closed_issues | 36 |
| issue_closed_ratio | 0.72 |
| closed_unmerged_prs | 6 |
Ownership & stewardship
71Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 18.9/25 | Owner reach — 428 followers of smol-rs |
| 22.5/25 | Track record — 32 public repos, account ~5 yr old |
Inputs used
| followers | 428 |
| owner_type | Organization |
| is_verified | — |
| owner_login | smol-rs |
| public_repos | 32 |
| account_age_days | 2,094 |
Package maintenance
79Good
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on crates |
| 14/35 | Publish recency — latest publish 385 days ago |
| 20/20 | Version history — 26 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | async-channel |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 385 |
Engineering Quality
Are baseline engineering and documentation practices in place?
50
Engineering practices
50Moderate
How it's scored
| 24/24 | CI workflows — 2 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 2/20 | OpenSSF Scorecard: CI-Tests — 4 out of 24 merged PRs checked by a CI test -- score normalized to 1 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
50Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 2 topics |
| 0/10 | Wiki |
Inputs used
| topics | async, rust |
| has_wiki | no |
| homepage | — |
| has_readme | yes |
| has_docs_dir | no |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
66
Security posture
57Moderate
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — no data |
| 0.2/2.5 | CI-Tests — 4 out of 24 merged PRs checked by a CI test -- score normalized to 1 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 5.2/7.5 | Code-Review — Found 17/23 approved changesets -- score normalized to 7 |
| 2.5/2.5 | Contributors — project has 14 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 |
| 0.8/7.5 | Maintained — 1 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 1 |
| 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 |
| 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 | 15 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 3 |
| scorecard_aggregate | 5.7 |
Excluded from scoring (no data or not applicable): branch_protection, packaging, signed_releases. Remaining weights renormalized.
Dependency advisories
100Excellent
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 | 56 |
| 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 crates:async-channel@2.5.0 runtime dependency closure — what installing the published package pulls in — 56 packages. Reachability is not analyzed.
AI Readiness
How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score.
52
Agent context & guidance
25Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 24.8/40 | Legible commit history — 46 of 99 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| legible_history_share | 0.465 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
54Moderate
How it's scored
| 12.6/18 | One-command bootstrap — Cargo.toml (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — Rust (statically typed) |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 8/8 | Automated maintenance — 1 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 | — |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | Cargo.toml |
| dependency_bot_commit_share | 0.01 |
Code legibility for models
100Excellent
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 55/55 | Manageable file sizes — 0/3 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 39,964 |
| source_files_sampled | 3 |
| oversized_source_files | 0 |
Key facts
940GitHub stars
21contributors
1commits, last 12 months
13days since last push
15releases
2bus factor
14open issues
crates.iopackage ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
More detail
Star and fork history 0 ★ / 55 ⇿
0Stars
55Forks
15Releases
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 9Patch 5
Each point covers 6 days.
OpenSSF Scorecard 5.7 / 10
5.7aggregate
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).
| 10 | Binary-Artifacts | no binaries found in the repo |
| n/a | Branch-Protection | internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md |
| 1 | CI-Tests | 4 out of 24 merged PRs checked by a CI test -- score normalized to 1 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 7 | Code-Review | Found 17/23 approved changesets -- score normalized to 7 |
| 10 | Contributors | project has 14 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 |
| 1 | Maintained | 1 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 1 |
| 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 |
| 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 6
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | concurrent-queue | 2.5 | Cargo.toml |
| crates.io | event-listener-strategy | 0.5.4 | Cargo.toml |
| crates.io | futures-core | 0.3.5 | Cargo.toml |
| crates.io | pin-project-lite | 0.2.11 | Cargo.toml |
| crates.io | portable-atomic | 1 | Cargo.toml |
| crates.io | portable-atomic-util | 0.2 | Cargo.toml |
All dependencies 9
Full resolved dependency set from the GitHub dependency graph: 6 direct and 3 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | concurrent-queue | — | direct |
| crates.io | event-listener-strategy | — | direct |
| crates.io | futures-core | — | direct |
| crates.io | pin-project-lite | — | direct |
| crates.io | portable-atomic | — | direct |
| crates.io | portable-atomic-util | — | direct |
| crates.io | easy-parallel | — | indirect |
| crates.io | futures-lite | — | indirect |
| crates.io | wasm-bindgen-test | — | indirect |
Dependency advisories 0
Installing crates:async-channel@2.5.0 pulls in 56 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
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{
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{
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{
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{
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{
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{
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},
{
"key": "package_maintenance",
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"components": [
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{
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{
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{
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],
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{
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"weight": 0.2,
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{
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{
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{
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{
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},
{
"key": "documentation",
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{
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{
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{
"key": "wiki",
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"points": 0,
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}
],
"description": "Are baseline engineering and documentation practices in place?"
},
{
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"name": "Security",
"value": 66,
"weight": 0.16,
"metrics": [
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{
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{
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"points": 0,
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},
{
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{
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},
{
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},
{
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},
{
"key": "fuzzing",
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"points": 0,
"status": "missed",
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},
{
"key": "license",
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},
{
"key": "maintained",
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"points": 0.8,
"status": "partial",
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},
{
"key": "packaging",
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"status": "excluded",
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"params": {}
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],
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{
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"status": "missed",
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{
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},
{
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"points": 5,
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},
{
"key": "signed_releases",
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"status": "excluded",
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}
],
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{
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"points": 0,
"status": "missed",
"details": [],
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},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
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"points": 7.5,
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"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
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"notes": [
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},
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{
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{
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]
},
{
"key": "malicious_dependencies",
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"notes": [
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],
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"components": [
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],
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],
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{
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{
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{
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{
"key": "manageable_file_sizes",
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],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? An independent, experimental badge — weight 0.0, so it is surfaced on its own and does not affect the overall health score."
}
],
"metrics_version": "1.13.0"
},
"warnings": [
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],
"report_type": "repository",
"generated_at": "2026-07-26T20:23:00.741868Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/s/smol-rs/async-channel.svg",
"full_name": "smol-rs/async-channel",
"license_state": "standard",
"license_spdx": "Apache-2.0"
}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 v1.13.0, schema v0.27.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — crates.io.