Public recordGood
Software health reportschema 0.27.0 · metrics 2.3.1 · 2026-07-28 00:39 UTC
cpmech / russell
Rust Scientific Library. ODE, DAE, and PDE solvers. Special functions (Bessel, Elliptic, Beta, Gamma, Erf). Linear algebra. Sparse solvers. Probability distributions. Tensor calculus. Numerical continuation.
cpmech/russell holds a health index of 75 out of 100, placing it in the Good band. It scores highest on Vitality (88/100) and lowest on AI Readiness (46/100). It was last updated 9 days ago. A single contributor accounts for most of its recent work.
75
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.
75
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 65 is calibrated to 75 on the published index scale (record calibration 2026-08-02).
Ownership
Dorival PedrosoPersonal account
168 followers62 public repossince Nov 2014
This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.
Package ecosystems
| Registry | Package | Version | Downloads / mo | Versions | Last publish | Tags |
|---|---|---|---|---|---|---|
| crates.io | russell_lab | 2.8.1 | 891 | 54 | 9 days ago | linspacematrixvectormathematicsscience |
| crates.io | russell_ode | 2.8.0 | 336 | 34 | 11 days ago | differentialnumericalsolvermathematicsscience |
| crates.io | russell_pde | 2.8.0 | 90 | 10 | 11 days ago | differentialpartialtoolsmathematicsscience |
| crates.io | russell_stat | 2.8.0 | 176 | 41 | 11 days ago | numericalprobabilityrandomstatisticsmathematicsscience |
| crates.io | russell_nonlin | 2.8.0 | 57 | 10 | 11 days ago | continuationnonlinearnumericalsolvermathematicsscience |
| crates.io | russell_sparse | 2.8.0 | 704 | 52 | 11 days ago | matrixsolversparsemathematicsscience |
| crates.io | russell_tensor | 2.8.0 | 144 | 41 | 11 days ago | continuummandelmechanicstensorvoigtmathematicsscience |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
88
Development activity
80Excellent
How it's scored
| 28.8/36 | Push recency — last push 9 days ago |
| 23.5/36 | Commit cadence — 34/52 weeks with commits |
| 18/18 | Commit volume — 873 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 30 commit(s) and 1 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 873 |
| human_commit_share | 1 |
| days_since_last_push | 9 |
| active_weeks_last_year | 34 |
Release discipline
100Exceptional
How it's scored
| 27/27 | Ships releases — 36 releases published |
| 36/36 | Release recency — latest release 11 days ago |
| 27/27 | Release cadence — a release every ~10.8 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 36 |
| latest_release_tag | v2.8.0 |
| releases_from_tags | no |
| days_since_latest_release | 11 |
| mean_days_between_releases | 10.8 |
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?
53
Popularity & adoption
53Moderate
How it's scored
| 37/60 | Stars — 191 stars |
| 9.8/25 | Forks — 16 forks |
| 5.8/15 | Watchers — 12 watchers |
Inputs used
| forks | 16 |
| stars | 191 |
| watchers | 12 |
| 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 (MIT) |
| 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 |
| readme_badges | — |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | — |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
56Moderate
How it's scored
| 45.1/80 | Monthly downloads — 2,398 downloads/month across crates |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | russell_lab, russell_ode, russell_pde, russell_stat, russell_nonlin, russell_sparse, russell_tensor |
| dependents | — |
| ecosystems | crates |
| total_downloads | 226,003 |
| monthly_downloads | 2,398 |
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?
62
Maintainer resilience (bus factor)
16Critical
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 0.2/22.5 | Commit distribution — top contributor authored 99% of commits |
| 4.1/13.5 | Contributor breadth — 3 contributors |
| 3/10 | OpenSSF Scorecard: Contributors — project has 1 contributing companies or organizations -- score normalized to 3 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 3 |
| top_contributor_share | 0.989 |
Issue & PR responsiveness
83Excellent
How it's scored
| 42/42 | Issue resolution — 100% of issues closed |
| 28.6/30 | PR acceptance — 163/171 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 2/11 approved changesets -- score normalized to 1 |
Inputs used
| merged_prs | 163 |
| open_issues | 0 |
| closed_issues | 16 |
| prs_merged_7d | — |
| prs_decided_7d | — |
| prs_merged_30d | — |
| prs_decided_30d | — |
| issue_closed_ratio | 1 |
| closed_unmerged_prs | 8 |
| first_time_authors_30d | — |
| first_time_prs_merged_30d | — |
| first_time_prs_decided_30d | — |
Excluded from scoring (no data or not applicable): newcomer_pr_acceptance. Remaining weights renormalized.
Ownership & stewardship
64Moderate
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 16/25 | Owner reach — 168 followers of cpmech |
| 25/25 | Track record — 62 public repos, account ~11 yr old |
Inputs used
| followers | 168 |
| owner_type | User |
| is_verified | — |
| owner_login | cpmech |
| public_repos | 62 |
| account_age_days | 4,286 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 7 package(s) on crates |
| 35/35 | Publish recency — latest publish 9 days ago |
| 20/20 | Version history — 54 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | russell_lab, russell_ode, russell_pde, russell_stat, russell_nonlin, russell_sparse, russell_tensor |
| ecosystems | crates |
| any_deprecated | no |
| min_days_since_publish | 9 |
Engineering Quality
Are baseline engineering and documentation practices in place?
65
Engineering practices
68Good
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 |
| 20/20 | OpenSSF Scorecard: CI-Tests — 4 out of 4 merged PRs checked by a CI test -- score normalized to 10 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
60Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 17 topics |
| 10/10 | Wiki |
Inputs used
| topics | eigenvalues, eigenvectors, sparse-matrix, mathematics, linear-algebra, rust, differential-equations, scientific-computing, special-functions, interpolation, bessel-function, gamma-function, numerical-derivatives, numerical-integration, quadrature, quadrature-integration, spectral-methods |
| has_wiki | yes |
| 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?
57
Security posture
46Weak
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — no data |
| 2.5/2.5 | CI-Tests — 4 out of 4 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 2/11 approved changesets -- score normalized to 1 |
| 0.8/2.5 | Contributors — project has 1 contributing companies or organizations -- score normalized to 3 |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 0/7.5 | Dependency-Update-Tool — no 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 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 | 15 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 3 |
| scorecard_aggregate | 4.6 |
Excluded from scoring (no data or not applicable): branch_protection, 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 | 60 |
| 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:russell_lab@2.8.1 runtime dependency closure — what installing the published package pulls in — 60 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.
46
Agent context & guidance
8Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 8.5/40 | Legible commit history — 16 of 100 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| legible_history_share | 0.16 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
56Moderate
How it's scored
| 12.6/18 | One-command bootstrap — Cargo.toml, russell_lab/Cargo.toml, russell_nonlin/Cargo.toml (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — Rust (statically typed) |
| 10/10 | Reproducible environment — Dockerfile |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 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 | yes |
| typed_language | yes |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | Cargo.toml, russell_lab/Cargo.toml, russell_nonlin/Cargo.toml, russell_ode/Cargo.toml, russell_pde/Cargo.toml, russell_sparse/Cargo.toml, russell_stat/Cargo.toml, russell_tensor/Cargo.toml |
| dependency_bot_commit_share | 0 |
Code legibility for models
99Exceptional
How it's scored
| 45/45 | Type-checkable code — Rust (statically typed) |
| 54.2/55 | Manageable file sizes — 7/470 source files over 60KB |
Inputs used
| primary_language | Rust |
| largest_source_bytes | 140,095 |
| source_files_sampled | 470 |
| oversized_source_files | 7 |
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) |
| 0/20 | MCP server |
| 40/40 | Runnable examples — examples |
Inputs used
| example_dirs | examples |
| has_mcp_signal | no |
| api_schema_files | — |
Key facts
191GitHub stars
3contributors
873commits, last 12 months
9days since last push
36releases
1bus factor
0open 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 ★ / 16 ⇿
0Stars
16Forks
31Releases
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 22Patch 8
Each point covers 4 days.
OpenSSF Scorecard 4.6 / 10
4.6aggregate
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 |
| 10 | CI-Tests | 4 out of 4 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 2/11 approved changesets -- score normalized to 1 |
| 3 | Contributors | project has 1 contributing companies or organizations -- score normalized to 3 |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 30 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 31
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| crates.io | num-complex | 0.4 | russell_lab/Cargo.toml |
| crates.io | num-traits | 0.2 | russell_lab/Cargo.toml |
| crates.io | serde | 1.0 | russell_lab/Cargo.toml |
| crates.io | russell_lab | 2 | russell_nonlin/Cargo.toml |
| crates.io | russell_sparse | 2 | russell_nonlin/Cargo.toml |
| crates.io | russell_stat | 2 | russell_nonlin/Cargo.toml |
| crates.io | serde | 1.0 | russell_nonlin/Cargo.toml |
| crates.io | serde_json | 1.0 | russell_nonlin/Cargo.toml |
| crates.io | structopt | 0.3 | russell_nonlin/Cargo.toml |
| crates.io | russell_lab | 2 | russell_ode/Cargo.toml |
| crates.io | russell_pde | 2 | russell_ode/Cargo.toml |
| crates.io | russell_sparse | 2 | russell_ode/Cargo.toml |
| crates.io | serde | 1.0 | russell_ode/Cargo.toml |
| crates.io | serde_json | 1.0 | russell_ode/Cargo.toml |
| crates.io | structopt | 0.3 | russell_ode/Cargo.toml |
| crates.io | russell_lab | 2 | russell_pde/Cargo.toml |
| crates.io | russell_sparse | 2 | russell_pde/Cargo.toml |
| crates.io | serde | 1.0 | russell_pde/Cargo.toml |
| crates.io | serde_json | 1.0 | russell_pde/Cargo.toml |
| crates.io | structopt | 0.3 | russell_pde/Cargo.toml |
| crates.io | num-traits | 0.2 | russell_sparse/Cargo.toml |
| crates.io | russell_lab | 2 | russell_sparse/Cargo.toml |
| crates.io | structopt | 0.3 | russell_sparse/Cargo.toml |
| crates.io | serde | 1.0 | russell_sparse/Cargo.toml |
| crates.io | serde_json | 1.0 | russell_sparse/Cargo.toml |
| crates.io | russell_lab | 2 | russell_stat/Cargo.toml |
| crates.io | num-traits | 0.2 | russell_stat/Cargo.toml |
| crates.io | rand | 0.10 | russell_stat/Cargo.toml |
| crates.io | rand_distr | 0.6 | russell_stat/Cargo.toml |
| crates.io | russell_lab | 2 | russell_tensor/Cargo.toml |
| crates.io | serde | 1.0 | russell_tensor/Cargo.toml |
All dependencies 17
Full resolved dependency set from the GitHub dependency graph: 11 direct and 6 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| crates.io | num-complex | — | direct |
| crates.io | num-traits | — | direct |
| crates.io | rand | — | direct |
| crates.io | rand_distr | — | direct |
| crates.io | russell_lab | — | direct |
| crates.io | russell_pde | — | direct |
| crates.io | russell_sparse | — | direct |
| crates.io | russell_stat | — | direct |
| crates.io | serde | — | direct |
| crates.io | serde_json | — | direct |
| crates.io | structopt | — | direct |
| crates.io | cc | — | indirect |
| crates.io | criterion | — | indirect |
| crates.io | plotpy | — | indirect |
| crates.io | rayon | — | indirect |
| crates.io | russell_ode | — | indirect |
| crates.io | serial_test | — | indirect |
Dependency advisories 0
Installing crates:russell_lab@2.8.1 pulls in 60 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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{
"tag": "v2.8.0",
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{
"tag": "v2.2.0",
"kind": "minor",
"published_at": "2026-06-09T08:45:59Z"
},
{
"tag": "v2.1.0",
"kind": "minor",
"published_at": "2026-06-08T06:44:48Z"
},
{
"tag": "v2.0.0",
"kind": "major",
"published_at": "2026-06-05T08:33:06Z"
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{
"tag": "v1.15.0",
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"published_at": "2026-04-10T03:00:38Z"
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{
"tag": "v1.13.0",
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"published_at": "2026-04-06T09:59:01Z"
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{
"tag": "v1.12.0",
"kind": "minor",
"published_at": "2026-04-02T11:49:29Z"
},
{
"tag": "v1.10.0",
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"published_at": "2025-02-21T08:25:53Z"
},
{
"tag": "v1.9.1",
"kind": "patch",
"published_at": "2024-12-17T04:01:35Z"
},
{
"tag": "v1.9.0",
"kind": "minor",
"published_at": "2024-09-28T08:03:52Z"
},
{
"tag": "v1.8.0",
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"published_at": "2024-09-25T10:30:04Z"
},
{
"tag": "v1.7.0",
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"published_at": "2024-09-24T03:57:07Z"
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{
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"published_at": "2024-07-23T23:12:48Z"
},
{
"tag": "v1.6.0",
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},
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}
},
{
"code": "weights_renormalized",
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],
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"inputs": {
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"components": [
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"key": "ships_releases",
"name": "Ships releases",
"detail": "36 releases published",
"points": 27,
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"details": [
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"code": "releases_published",
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}
],
"max_points": 27
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{
"key": "release_recency",
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"points": 36,
"status": "met",
"details": [
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{
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{
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]
},
{
"key": "abandonment",
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"note": null,
"notes": [],
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"inputs": {
"cap": null,
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"guards": [],
"signals": [],
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"components": [
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"code": "abandonment_maintained",
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}
],
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{
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"name": "Community & Adoption",
"value": 53,
"weight": 0.17,
"metrics": [
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"note": null,
"notes": [],
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"stars": 191,
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"components": [
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"points": 37,
"status": "partial",
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"count": 191
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}
],
"max_points": 60
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{
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"points": 9.8,
"status": "partial",
"details": [
{
"code": "forks",
"params": {
"count": 16
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}
],
"max_points": 25
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{
"key": "watchers",
"name": "Watchers",
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"points": 5.8,
"status": "partial",
"details": [
{
"code": "watchers",
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}
],
"max_points": 15
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]
},
{
"key": "community_health",
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"name": "Community health",
"note": null,
"notes": [],
"value": 50,
"inputs": {
"has_readme": true,
"has_license": true,
"readme_badges": null,
"has_contributing": false,
"has_issue_template": false,
"has_code_of_conduct": false,
"readme_badge_services": [],
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"components": [
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"points": 22.5,
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"details": [],
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{
"key": "license",
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"detail": "recognized license (MIT)",
"points": 22.5,
"status": "met",
"details": [
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"code": "license_standard",
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{
"code": "license_spdx",
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],
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{
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"points": 0,
"status": "missed",
"details": [],
"max_points": 18
},
{
"key": "code_of_conduct",
"name": "Code of conduct",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 13.5
},
{
"key": "issue_template",
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"status": "missed",
"details": [],
"max_points": 7.2
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{
"key": "pr_template",
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"max_points": 6.3
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]
},
{
"key": "ecosystem_adoption",
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"note": "Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.",
"notes": [
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"code": "excluded_no_data",
"params": {
"components": [
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},
{
"code": "weights_renormalized",
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],
"value": 56,
"inputs": {
"packages": [
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"russell_ode",
"russell_pde",
"russell_stat",
"russell_nonlin",
"russell_sparse",
"russell_tensor"
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"dependents": null,
"ecosystems": "crates",
"total_downloads": 226003,
"monthly_downloads": 2398
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"components": [
{
"key": "monthly_downloads",
"name": "Monthly downloads",
"detail": "2,398 downloads/month across crates",
"points": 45.1,
"status": "partial",
"details": [
{
"code": "downloads_monthly",
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}
],
"max_points": 80
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{
"key": "registry_dependents",
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"points": 0,
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"details": [
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"max_points": 20
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],
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{
"key": "governance",
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"name": "Sustainability & Governance",
"value": 62,
"weight": 0.23,
"metrics": [
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"key": "maintainer_resilience",
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"note": null,
"notes": [],
"value": 16,
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"components": [
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"status": "partial",
"details": [
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"code": "bus_factor",
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{
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"status": "partial",
"details": [
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"code": "top_contributor_share",
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"share": 99
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}
],
"max_points": 22.5
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{
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"status": "partial",
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}
],
"max_points": 13.5
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{
"key": "openssf_scorecard_contributors",
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"points": 3,
"status": "partial",
"details": [],
"max_points": 10
}
]
},
{
"key": "responsiveness",
"band": "excellent",
"name": "Issue & PR responsiveness",
"note": "Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
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},
{
"code": "weights_renormalized",
"params": {}
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],
"value": 83,
"inputs": {
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"open_issues": 0,
"closed_issues": 16,
"prs_merged_7d": null,
"prs_decided_7d": null,
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"issue_closed_ratio": 1,
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"components": [
{
"key": "issue_resolution",
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"points": 42,
"status": "met",
"details": [
{
"code": "issues_closed_share",
"params": {
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}
],
"max_points": 42
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{
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"status": "partial",
"details": [
{
"code": "decided_prs_merged",
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"decided": 171
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],
"max_points": 30
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{
"key": "newcomer_pr_acceptance",
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"status": "excluded",
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"code": "no_newcomer_prs",
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{
"key": "openssf_scorecard_code_review",
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"status": "partial",
"details": [],
"max_points": 15
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]
},
{
"key": "stewardship",
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"notes": [
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"code": "excluded_no_data",
"params": {
"components": [
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},
{
"code": "weights_renormalized",
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],
"value": 64,
"inputs": {
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"account_age_days": 4286
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"components": [
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"status": "partial",
"details": [
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"code": "owner_personal",
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],
"max_points": 30
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{
"key": "verified_domain",
"name": "Verified domain",
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"points": 0,
"status": "excluded",
"details": [
{
"code": "not_applicable_to_user_accounts",
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],
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{
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}
],
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{
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"points": 25,
"status": "met",
"details": [
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},
{
"code": "account_age_years",
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}
],
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]
},
{
"key": "package_maintenance",
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"note": null,
"notes": [],
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"inputs": {
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"components": [
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"code": "packages_published",
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{
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"code": "publish_recency",
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}
],
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{
"key": "version_history",
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"detail": "54 published versions",
"points": 20,
"status": "met",
"details": [
{
"code": "published_versions",
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}
],
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{
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}
],
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{
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"weight": 0.19,
"metrics": [
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"key": "engineering_practices",
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"note": null,
"notes": [],
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"inputs": {
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"has_tests": true,
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"components": [
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"details": [
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"code": "ci_workflows",
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{
"key": "tests_present",
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{
"key": "linter_config",
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"details": [],
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{
"key": "pre_commit_hooks",
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{
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]
},
{
"key": "documentation",
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"notes": [],
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"inputs": {
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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": 0.16,
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"key": "security_posture",
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"code": "excluded_no_data",
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},
{
"code": "weights_renormalized",
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],
"value": 46,
"inputs": {
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{
"key": "branch_protection",
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],
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{
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{
"key": "cii_best_practices",
"name": "CII-Best-Practices",
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"status": "missed",
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{
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{
"key": "contributors",
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"points": 0.8,
"status": "partial",
"details": [],
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{
"key": "dangerous_workflow",
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"status": "met",
"details": [],
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},
{
"key": "dependency_update_tool",
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"status": "missed",
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},
{
"key": "fuzzing",
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"status": "missed",
"details": [],
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},
{
"key": "license",
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"points": 2.5,
"status": "met",
"details": [],
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},
{
"key": "maintained",
"name": "Maintained",
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"points": 7.5,
"status": "met",
"details": [],
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},
{
"key": "packaging",
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"detail": "packaging workflow not detected",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
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],
"max_points": 5
},
{
"key": "pinned_dependencies",
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"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "sast",
"name": "SAST",
"detail": "SAST tool is not run on all commits -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "security_policy",
"name": "Security-Policy",
"detail": "security policy file not detected",
"points": 0,
"status": "missed",
"details": [],
"max_points": 5
},
{
"key": "signed_releases",
"name": "Signed-Releases",
"detail": "no releases found",
"points": 0,
"status": "excluded",
"details": [
{
"code": "no_data",
"params": {}
}
],
"max_points": 7.5
},
{
"key": "token_permissions",
"name": "Token-Permissions",
"detail": "detected GitHub workflow tokens with excessive permissions",
"points": 0,
"status": "missed",
"details": [],
"max_points": 7.5
},
{
"key": "vulnerabilities",
"name": "Vulnerabilities",
"detail": "0 existing vulnerabilities detected",
"points": 7.5,
"status": "met",
"details": [],
"max_points": 7.5
}
]
},
{
"key": "dependency_advisories",
"band": "exceptional",
"name": "Dependency advisories",
"note": "Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the crates:russell_lab@2.8.1 runtime dependency closure — what installing the published package pulls in — 60 packages. Reachability is not analyzed.",
"notes": [
{
"code": "excluded_no_data",
"params": {
"components": [
"no_advisories_left_outstanding"
]
}
},
{
"code": "weights_renormalized",
"params": {}
},
{
"code": "advisories_scope_published",
"params": {
"package": "crates:russell_lab@2.8.1",
"assessed": 60
}
},
{
"code": "advisories_reachability",
"params": {}
}
],
"value": 100,
"inputs": {
"source": "osv",
"advisories": 0,
"affected_packages": 0,
"assessed_packages": 60,
"unassessed_packages": 0,
"affected_by_severity": "none",
"direct_affected_packages": 0
},
"components": [
{
"key": "direct_dependencies_free_of_known_advisories",
"name": "Direct dependencies free of known advisories",
"detail": "no direct dependency carries a known advisory",
"points": 35,
"status": "met",
"details": [
{
"code": "no_direct_advisories",
"params": {}
}
],
"max_points": 35
},
{
"key": "indirect_dependencies_free_of_known_advisories",
"name": "Indirect dependencies free of known advisories",
"detail": "no indirect dependency carries a known advisory",
"points": 25,
"status": "met",
"details": [
{
"code": "no_indirect_advisories",
"params": {}
}
],
"max_points": 25
},
{
"key": "no_advisories_left_outstanding",
"name": "No advisories left outstanding",
"detail": "no advisory carries a publication date",
"points": 0,
"status": "excluded",
"details": [
{
"code": "advisories_no_publication_date",
"params": {}
}
],
"max_points": 40
}
]
},
{
"key": "malicious_dependencies",
"band": "exceptional",
"name": "Malicious dependencies",
"note": null,
"notes": [],
"value": 100,
"inputs": {
"source": "osv",
"meaning": "reported as a malicious package by the OpenSSF corpus; the remedy is removal or moving off the compromised name, never an upgrade of the same artifact. Versions the registry has since pulled are listed but not scored",
"packages": [],
"red_flag": false,
"assessed_packages": 60,
"malicious_packages": 0,
"direct_malicious_packages": 0,
"withdrawn_malicious_packages": 0,
"installable_malicious_packages": 0
},
"components": [
{
"key": "no_dependency_reported_as_a_malicious_package",
"name": "No dependency reported as a malicious package",
"detail": "no dependency is reported as a malicious package",
"points": 100,
"status": "met",
"details": [
{
"code": "no_malicious_dependencies",
"params": {}
}
],
"max_points": 100
}
]
},
{
"key": "high_risk_jurisdiction_exposure",
"band": "exceptional",
"name": "High-Risk Jurisdiction Exposure",
"note": "Only high-confidence self-published location evidence affects this multiplier. Ambiguous matches are review-only; country evidence is not proof of nationality, citizenship, legal registration, malicious intent, or sanctions status.",
"notes": [
{
"code": "jurisdiction_evidence_limits",
"params": {}
}
],
"value": 100,
"inputs": {
"meaning": "self-published location evidence; not nationality or citizenship",
"red_flag": false,
"exposures": [],
"policy_countries": [
"Russia",
"Iran",
"North Korea"
],
"commit_weight_rule": {
"min_commits": 50,
"min_commit_share": 0.1
},
"review_only_matches": 0,
"below_threshold_exposures": [],
"assessed_self_published_locations": 4
},
"components": [
{
"key": "policy_exposure_multiplier",
"name": "Policy exposure multiplier",
"detail": "no confirmed policy-scope location match",
"points": 100,
"status": "met",
"details": [
{
"code": "jurisdiction_no_match",
"params": {}
}
],
"max_points": 100
}
]
}
],
"description": "Are visible security and supply-chain practices strong, with no malicious dependency and no unresolved high-risk jurisdiction exposure?"
},
{
"key": "ai_readiness",
"band": "weak",
"name": "AI Readiness",
"value": 46,
"weight": 0.04,
"metrics": [
{
"key": "ai_agent_context",
"band": "critical",
"name": "Agent context & guidance",
"note": null,
"notes": [],
"value": 8,
"inputs": {
"has_llms_txt": false,
"legible_history_share": 0.16,
"agent_instruction_files": [],
"agent_instruction_max_bytes": null
},
"components": [
{
"key": "agent_instructions",
"name": "Agent instructions",
"detail": "no CLAUDE.md / AGENTS.md / editor rules",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_instructions",
"params": {}
}
],
"max_points": 45
},
{
"key": "machine_readable_docs_llms_txt",
"name": "Machine-readable docs (llms.txt)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 15
},
{
"key": "legible_commit_history",
"name": "Legible commit history",
"detail": "16 of 100 human commits state their intent (structured subject or explanatory body)",
"points": 8.5,
"status": "partial",
"details": [
{
"code": "legible_history",
"params": {
"legible": 16,
"sampled": 100
}
}
],
"max_points": 40
}
]
},
{
"key": "ai_verify_loop",
"band": "moderate",
"name": "Verify loop (build / test / typecheck)",
"note": null,
"notes": [],
"value": 56,
"inputs": {
"has_nix": false,
"has_tests": true,
"lockfiles": [],
"has_dockerfile": true,
"typed_language": true,
"bootstrap_files": [],
"has_devcontainer": false,
"has_linter_config": false,
"typecheck_configs": [],
"agent_commit_share": 0,
"toolchain_manifests": [
"Cargo.toml",
"russell_lab/Cargo.toml",
"russell_nonlin/Cargo.toml",
"russell_ode/Cargo.toml",
"russell_pde/Cargo.toml",
"russell_sparse/Cargo.toml",
"russell_stat/Cargo.toml",
"russell_tensor/Cargo.toml"
],
"dependency_bot_commit_share": 0
},
"components": [
{
"key": "one_command_bootstrap",
"name": "One-command bootstrap",
"detail": "Cargo.toml, russell_lab/Cargo.toml, russell_nonlin/Cargo.toml (toolchain convention, no task runner)",
"points": 12.6,
"status": "partial",
"details": [
{
"code": "toolchain_convention",
"params": {
"files": "Cargo.toml, russell_lab/Cargo.toml, russell_nonlin/Cargo.toml"
}
}
],
"max_points": 18
},
{
"key": "automated_tests",
"name": "Automated tests",
"detail": null,
"points": 22,
"status": "met",
"details": [],
"max_points": 22
},
{
"key": "lint_format_config",
"name": "Lint / format config",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 11
},
{
"key": "static_type_checking",
"name": "Static type checking",
"detail": "Rust (statically typed)",
"points": 11,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Rust"
}
}
],
"max_points": 11
},
{
"key": "reproducible_environment",
"name": "Reproducible environment",
"detail": "Dockerfile",
"points": 10,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "Dockerfile"
}
}
],
"max_points": 10
},
{
"key": "demonstrated_agent_practice",
"name": "Demonstrated agent practice",
"detail": "no agent-authored commits among the last 100",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_agent_authored_commits",
"params": {
"sampled": 100
}
}
],
"max_points": 10
},
{
"key": "automated_maintenance",
"name": "Automated maintenance",
"detail": "no automated dependency updates observed",
"points": 0,
"status": "missed",
"details": [
{
"code": "no_dependency_automation",
"params": {}
}
],
"max_points": 8
},
{
"key": "openssf_scorecard_pinned_dependencies",
"name": "OpenSSF Scorecard: Pinned-Dependencies",
"detail": "dependency not pinned by hash detected -- score normalized to 0",
"points": 0,
"status": "missed",
"details": [],
"max_points": 10
}
]
},
{
"key": "ai_code_legibility",
"band": "exceptional",
"name": "Code legibility for models",
"note": null,
"notes": [],
"value": 99,
"inputs": {
"primary_language": "Rust",
"largest_source_bytes": 140095,
"source_files_sampled": 470,
"oversized_source_files": 7
},
"components": [
{
"key": "type_checkable_code",
"name": "Type-checkable code",
"detail": "Rust (statically typed)",
"points": 45,
"status": "met",
"details": [
{
"code": "statically_typed_language",
"params": {
"language": "Rust"
}
}
],
"max_points": 45
},
{
"key": "manageable_file_sizes",
"name": "Manageable file sizes",
"detail": "7/470 source files over 60KB",
"points": 54.2,
"status": "partial",
"details": [
{
"code": "oversized_source_files",
"params": {
"kb": 60,
"sampled": 470,
"oversized": 7
}
}
],
"max_points": 55
}
]
},
{
"key": "ai_interfaces",
"band": "weak",
"name": "Machine-readable interfaces",
"note": null,
"notes": [],
"value": 40,
"inputs": {
"example_dirs": [
"examples"
],
"has_mcp_signal": false,
"api_schema_files": []
},
"components": [
{
"key": "api_schema_openapi_graphql_proto",
"name": "API schema (OpenAPI/GraphQL/proto)",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 40
},
{
"key": "mcp_server",
"name": "MCP server",
"detail": null,
"points": 0,
"status": "missed",
"details": [],
"max_points": 20
},
{
"key": "runnable_examples",
"name": "Runnable examples",
"detail": "examples",
"points": 40,
"status": "met",
"details": [
{
"code": "file_list",
"params": {
"files": "examples"
}
}
],
"max_points": 40
}
]
}
],
"description": "How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight: agent tooling is a real maintenance signal, but its absence must never gate the top of the scale (calibration saturates at raw 91, so 100/100 remains reachable with AI Readiness at zero)."
}
],
"classification": {
"labels": [
"library",
"cli"
],
"scores": {
"cli": 4,
"library": 8
},
"primary": "library",
"evidence": [
{
"tier": "distribution",
"label": "library",
"source": "registry:crates",
"weight": 6
},
{
"tier": "dependencies",
"label": "cli",
"source": "dep:structopt",
"weight": 4
},
{
"tier": "description",
"label": "library",
"source": "description:library",
"weight": 2
}
],
"artifacts": [],
"confidence": "medium",
"host_extension": false,
"runs_as_process": true,
"consumed_by_code": true
},
"metrics_version": "2.3.1"
},
"warnings": [
"Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token"
],
"report_type": "repository",
"generated_at": "2026-07-28T00:39:42.085298Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/c/cpmech/russell.svg",
"full_name": "cpmech/russell",
"license_state": "standard",
"license_spdx": "MIT"
}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 v2.3.1, schema v0.27.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — crates.io.