Public recordAt risk
Software health reportschema 0.27.0 · metrics 1.13.0 · 2026-07-26 01:26 UTC
spinkney / math
The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
spinkney/math holds a health index of 37 out of 100, placing it in the At risk band. It scores highest on Sustainability & Governance (73/100) and lowest on Community & Adoption (12/100). It was last updated 1265 days ago. 5 contributors account for most of its recent work.
37
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.
37
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.
Abandonment Policy applies a 85% multiplier to weighted overall health.
Ownership
Sean PinkneyPersonal account
34 followers67 public repossince Nov 2016
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 |
|---|---|---|---|---|---|---|
| PyPI | cpplintpoints to another repo — not scored | 2.0.2 | 555,642 | 33 | 474 days ago | c++cppgoogle-stylelint |
| PyPI | google-benchmarkpoints to another repo — not scored | 1.9.5 | 59,865 | 12 | 173 days ago | benchmark |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
17
Development activity
1Critical
Abandonment alert
Work has arrived and nobody has attended to it
no human commit in 1420 daysautomated commits excludedreleases stalledOpenSSF Scorecard reports it unmaintained
Silence alone is never the finding — a small, finished library may need no commits for years. This alert requires both: no human commit for a long time, and obligations the project is visibly not discharging. Automated commits do not count as maintenance.
How abandonment is assessedHow it's scored
| 0/36 | Push recency — last push 1,265 days ago |
| 0/36 | Commit cadence — 0/52 weeks with commits |
| 0/18 | Commit volume — 0 commits in the last year |
| 0/10 | OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
Inputs used
| commits_last_year | 0 |
| human_commit_share | 0.97 |
| days_since_last_push | 1,265 |
| active_weeks_last_year | 0 |
Release discipline
40At risk
How it's scored
| 16.2/27 | Ships releases — 24 version tags (no GitHub releases) |
| 0/36 | Release recency — latest release 2,098 days ago |
| 19.8/27 | Release cadence — a release every ~65.1 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 24 |
| latest_release_tag | v3.4.0 |
| releases_from_tags | yes |
| days_since_latest_release | 2,098 |
| mean_days_between_releases | 65.1 |
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?
12
Popularity & adoption
1Critical
How it's scored
| 0/60 | Stars — 0 stars |
| 0/25 | Forks — 0 forks |
| 0/15 | Watchers — 0 watchers |
Inputs used
| forks | 0 |
| stars | 0 |
| watchers | 0 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
25Critical
How it's scored
| 0/22.5 | README |
| 22.5/22.5 | License — recognized license (BSD-3-Clause) |
| 0/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | no |
| has_license | no |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | no |
| has_pull_request_template | no |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
73
Maintainer resilience (bus factor)
87Excellent
How it's scored
| 45.9/54 | Bus factor — 5 contributor(s) cover half of all commits |
| 17.6/22.5 | Commit distribution — top contributor authored 22% of commits |
| 13.5/13.5 | Contributor breadth — 97 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 19 contributing companies or organizations |
Inputs used
| bus_factor | 5 |
| contributors_sampled | 97 |
| top_contributor_share | 0.216 |
How it's scored
| 0/46.8 | Issue resolution — no issues or no data |
| 38.2/38.3 | PR acceptance — 1/1 decided PRs merged |
| 0/15 | OpenSSF Scorecard: Code-Review — Found 0/30 approved changesets -- score normalized to 0 |
Inputs used
| merged_prs | 1 |
| open_issues | 0 |
| closed_issues | 0 |
| issue_closed_ratio | — |
| closed_unmerged_prs | 0 |
Excluded from scoring (no data or not applicable): Issue resolution. Remaining weights renormalized.
Ownership & stewardship
58Moderate
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 11.1/25 | Owner reach — 34 followers of spinkney |
| 25/25 | Track record — 67 public repos, account ~9 yr old |
Inputs used
| followers | 34 |
| owner_type | User |
| is_verified | — |
| owner_login | spinkney |
| public_repos | 67 |
| account_age_days | 3,531 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Engineering Quality
Are baseline engineering and documentation practices in place?
58
Engineering practices
80Good
How it's scored
| 24/24 | CI workflows — 2 workflow(s) |
| 24/24 | Tests present |
| 16/16 | Linter config — .flake8, .pylintrc, tox.ini |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 0/20 | OpenSSF Scorecard: CI-Tests — no data |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | yes |
| has_precommit_config | no |
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: CI-Tests. Remaining weights renormalized.
Documentation
25Critical
How it's scored
| 0/30 | README |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://mc-stan.org |
| 0/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | https://mc-stan.org |
| has_readme | no |
| has_docs_dir | no |
| has_description | no |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
47
Security posture
47At risk
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0/7.5 | Branch-Protection — branch protection not enabled on development/release branches |
| 0/2.5 | CI-Tests — no data |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0/7.5 | Code-Review — Found 0/30 approved changesets -- score normalized to 0 |
| 2.5/2.5 | Contributors — project has 19 contributing companies or organizations |
| 10/10 | Dangerous-Workflow — no dangerous workflow patterns detected |
| 7.5/7.5 | Dependency-Update-Tool — update tool detected |
| 5/5 | Fuzzing — project is fuzzed |
| 2.5/2.5 | License — license file detected |
| 0/7.5 | Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0 |
| 0/5 | SAST — no SAST tool detected |
| 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 | 4.7 |
Excluded from scoring (no data or not applicable): ci_tests, packaging, signed_releases. Remaining weights renormalized.
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.
56
Agent context & guidance
10Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 10.4/40 | Legible commit history — 19 of 97 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| legible_history_share | 0.196 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
How it's scored
| 18/18 | One-command bootstrap — lib/benchmark_1.5.1/googletest/googletest/scripts/test/Makefile, lib/boost_1.78.0/libs/convert/makefile, lib/boost_1.78.0/libs/numeric/odeint/performance/Makefile, lib/boost_1.78.0/libs/numeric/odeint/performance/SIMD/Makefile, lib/boost_1.78.0/libs/numeric/odeint/test_external/thrust/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/bzip2-1.0.8/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/blast/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/minizip/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/puff/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/untgz/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/nintendods/Makefile, lib/tbb_2020.3/Makefile, lib/tbb_2020.3/python/Makefile, lib/tbb_2020.3/python/rml/Makefile, lib/tbb_2020.3/src/Makefile, makefile |
| 22/22 | Automated tests |
| 11/11 | Lint / format config — .flake8, .pylintrc, tox.ini |
| 11/11 | Static type checking — C++ (statically typed) |
| 10/10 | Reproducible environment — Dockerfile |
| 0/10 | Demonstrated agent practice — no agent-authored commits among the last 100 |
| 8/8 | Automated maintenance — 3 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 | yes |
| typed_language | yes |
| bootstrap_files | lib/benchmark_1.5.1/googletest/googletest/scripts/test/Makefile, lib/boost_1.78.0/libs/convert/makefile, lib/boost_1.78.0/libs/numeric/odeint/performance/Makefile, lib/boost_1.78.0/libs/numeric/odeint/performance/SIMD/Makefile, lib/boost_1.78.0/libs/numeric/odeint/test_external/thrust/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/bzip2-1.0.8/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/blast/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/minizip/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/puff/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/untgz/Makefile, lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/nintendods/Makefile, lib/tbb_2020.3/Makefile, lib/tbb_2020.3/python/Makefile, lib/tbb_2020.3/python/rml/Makefile, lib/tbb_2020.3/src/Makefile, makefile |
| has_devcontainer | no |
| has_linter_config | yes |
| typecheck_configs | — |
| agent_commit_share | 0 |
| toolchain_manifests | lib/boost_1.78.0/tools/boost_install/test/iostreams/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.csproj |
| dependency_bot_commit_share | 0.03 |
Code legibility for models
99Excellent
How it's scored
| 45/45 | Type-checkable code — C++ (statically typed) |
| 54.1/55 | Manageable file sizes — 359/22,503 source files over 60KB |
Inputs used
| primary_language | C++ |
| largest_source_bytes | 2,328,744 |
| source_files_sampled | 22,503 |
| oversized_source_files | 359 |
Machine-readable interfaces
40At risk
How it's scored
| 0/40 | API schema (OpenAPI/GraphQL/proto) |
| 0/20 | MCP server |
| 40/40 | Runnable examples — demos, example, examples, samples |
Inputs used
| example_dirs | demos, example, examples, samples |
| has_mcp_signal | no |
| api_schema_files | — |
Key facts
0GitHub stars
97contributors
0commits, last 12 months
1,265days since last push
24releases
5bus factor
0open issues
—package ecosystems
Data collection warnings
- Community profile unavailable
- pypi package 'cpplint' points at a different repository (https://github.com/cpplint/cpplint); excluded from ecosystem scoring
- pypi package 'google-benchmark' points at a different repository (https://github.com/google/benchmark.git); excluded from ecosystem scoring
- GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
More detail
OpenSSF Scorecard 4.7 / 10
4.7aggregate
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 |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| n/a | CI-Tests | no pull request found |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 0 | Code-Review | Found 0/30 approved changesets -- score normalized to 0 |
| 10 | Contributors | project has 19 contributing companies or organizations |
| 10 | Dangerous-Workflow | no dangerous workflow patterns detected |
| 10 | Dependency-Update-Tool | update tool detected |
| 10 | Fuzzing | project is fuzzed |
| 10 | License | license file detected |
| 0 | Maintained | 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| n/a | Packaging | packaging workflow not detected |
| 0 | Pinned-Dependencies | dependency not pinned by hash detected -- score normalized to 0 |
| 0 | SAST | no SAST tool detected |
| 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 |
All dependencies not collected
The resolved dependency set could not be collected for this report: GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository
Raw JSON report machine-readable
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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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{
"key": "openssf_scorecard_ci_tests",
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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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},
{
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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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},
{
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},
{
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},
{
"key": "maintained",
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"points": 0,
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{
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},
{
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},
{
"key": "signed_releases",
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{
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"points": 0,
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},
{
"key": "vulnerabilities",
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}
]
},
{
"key": "high_risk_jurisdiction_exposure",
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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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},
{
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]
},
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},
{
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"points": 54.1,
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}
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]
},
{
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},
{
"key": "mcp_server",
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},
{
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"points": 40,
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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": [
"Community profile unavailable",
"pypi package 'cpplint' points at a different repository (https://github.com/cpplint/cpplint); excluded from ecosystem scoring",
"pypi package 'google-benchmark' points at a different repository (https://github.com/google/benchmark.git); excluded from ecosystem scoring",
"GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository"
],
"report_type": "repository",
"generated_at": "2026-07-26T01:26:22.654589Z",
"schema_version": "0.27.0",
"badge_url": "https://raw.githubusercontent.com/inspect-software/badges/main/v1/s/spinkney/math.svg",
"full_name": "spinkney/math",
"license_state": "standard",
"license_spdx": "BSD-3-Clause"
}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 — PyPI.