Public recordModerate
Software health reportschema 0.18.0 · metrics 1.13.0 · 2026-07-21 14:29 UTC
stan-dev / cmdstan
CmdStan, the command line interface to Stan
stan-dev/cmdstan holds a health index of 65 out of 100, placing it in the Moderate band. It scores highest on Vitality (87/100) and lowest on Security (39/100). It was last updated 3 days ago. 2 contributors account for most of its recent work.
65
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.
65
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
StanOrganization
542 followers52 public repossince Jan 2013
This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
87
Development activity
90Excellent
How it's scored
| 36/36 | Push recency — last push 3 days ago |
| 27/36 | Commit cadence — 39/52 weeks with commits |
| 17/18 | Commit volume — 78 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 26 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 78 |
| human_commit_share | — |
| days_since_last_push | 3 |
| active_weeks_last_year | 39 |
Release discipline
83Good
How it's scored
| 27/27 | Ships releases — 80 releases published |
| 36/36 | Release recency — latest release 62 days ago |
| 19.8/27 | Release cadence — a release every ~58.3 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases. |
Inputs used
| releases_count | 80 |
| latest_release_tag | v2.39.0 |
| releases_from_tags | no |
| days_since_latest_release | 62 |
| mean_days_between_releases | 58.3 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
74
Popularity & adoption
64Moderate
How it's scored
| 38.5/60 | Stars — 238 stars |
| 16.8/25 | Forks — 104 forks |
| 8.5/15 | Watchers — 35 watchers |
Inputs used
| forks | 104 |
| stars | 238 |
| watchers | 35 |
| growth_state | organic |
| growth_factor_pct | 100 |
Community health
85Excellent
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (BSD-3-Clause) |
| 18/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 7.2/7.2 | Issue template |
| 6.3/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| has_contributing | yes |
| has_issue_template | yes |
| has_code_of_conduct | no |
| has_pull_request_template | yes |
Sustainability & Governance
Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?
69
Maintainer resilience (bus factor)
62Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 13.6/22.5 | Commit distribution — top contributor authored 40% of commits |
| 13.5/13.5 | Contributor breadth — 34 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 18 contributing companies or organizations |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 34 |
| top_contributor_share | 0.397 |
How it's scored
| 43.6/46.8 | Issue resolution — 93% of issues closed |
| 30.5/38.3 | PR acceptance — 506/635 decided PRs merged |
| 0/15 | OpenSSF Scorecard: Code-Review — Found 1/25 approved changesets -- score normalized to 0 |
Inputs used
| merged_prs | 506 |
| open_issues | 46 |
| closed_issues | 634 |
| issue_closed_ratio | 0.932 |
| closed_unmerged_prs | 129 |
Ownership & stewardship
74Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 19.7/25 | Owner reach — 542 followers of stan-dev |
| 24.6/25 | Track record — 52 public repos, account ~13 yr old |
Inputs used
| followers | 542 |
| owner_type | Organization |
| is_verified | — |
| owner_login | stan-dev |
| public_repos | 52 |
| account_age_days | 4,925 |
Engineering Quality
Are baseline engineering and documentation practices in place?
49
Engineering practices
38At risk
How it's scored
| 0/24 | CI workflows |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 14/20 | OpenSSF Scorecard: CI-Tests — 3 out of 4 merged PRs checked by a CI test -- score normalized to 7 |
Inputs used
| has_ci | no |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
65Moderate
How it's scored
| 30/30 | README |
| 0/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://mc-stan.org/users/interfaces/cmdstan |
| 10/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | https://mc-stan.org/users/interfaces/cmdstan |
| 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?
39
Security posture
39At risk
How it's scored
| 7.5/7.5 | Binary-Artifacts — no binaries found in the repo |
| 0.8/7.5 | Branch-Protection — branch protection is not maximal on development and all release branches |
| 1.8/2.5 | CI-Tests — 3 out of 4 merged PRs checked by a CI test -- score normalized to 7 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 0/7.5 | Code-Review — Found 1/25 approved changesets -- score normalized to 0 |
| 2.5/2.5 | Contributors — project has 18 contributing companies or organizations |
| 0/10 | Dangerous-Workflow — no data |
| 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 — 26 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10 |
| 0/5 | Packaging — no data |
| 0/5 | Pinned-Dependencies — no data |
| 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 — Project has not signed or included provenance with any releases. |
| 0/7.5 | Token-Permissions — no data |
| 7.5/7.5 | Vulnerabilities — 0 existing vulnerabilities detected |
Inputs used
| source | openssf_scorecard |
| checks_evaluated | 14 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 4 |
| scorecard_aggregate | 3.9 |
Excluded from scoring (no data or not applicable): dangerous_workflow, packaging, pinned_dependencies, token_permissions. 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.
50
Agent context & guidance
1Critical
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 0/40 | Legible commit history — no data |
Inputs used
| has_llms_txt | no |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
How it's scored
| 18/18 | One-command bootstrap — makefile |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — C++ (statically typed) |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no data |
| 0/8 | Automated maintenance — no data |
| 0/10 | OpenSSF Scorecard: Pinned-Dependencies — no data |
Inputs used
| has_nix | no |
| has_tests | yes |
| lockfiles | — |
| has_dockerfile | no |
| typed_language | yes |
| bootstrap_files | makefile |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | — |
Excluded from scoring (no data or not applicable): Demonstrated agent practice, Automated maintenance, OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
Code legibility for models
100Excellent
How it's scored
| 45/45 | Type-checkable code — C++ (statically typed) |
| 54.6/55 | Manageable file sizes — 1/132 source files over 60KB |
Inputs used
| primary_language | C++ |
| largest_source_bytes | 317,610 |
| source_files_sampled | 132 |
| oversized_source_files | 1 |
Machine-readable interfaces
40At risk
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
238GitHub stars
34contributors
78commits, last 12 months
3days since last push
80releases
2bus factor
46open issues
—package ecosystems
More detail
Star and fork history 238 ★ / 104 ⇿
238Stars
104Forks
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.
Each point covers 12 days.
OpenSSF Scorecard 3.9 / 10
3.9aggregate
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 |
| 1 | Branch-Protection | branch protection is not maximal on development and all release branches |
| 7 | CI-Tests | 3 out of 4 merged PRs checked by a CI test -- score normalized to 7 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 0 | Code-Review | Found 1/25 approved changesets -- score normalized to 0 |
| 10 | Contributors | project has 18 contributing companies or organizations |
| n/a | Dangerous-Workflow | no workflows found |
| 0 | Dependency-Update-Tool | no update tool detected |
| 0 | Fuzzing | project is not fuzzed |
| 10 | License | license file detected |
| 10 | Maintained | 26 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10 |
| n/a | Packaging | packaging workflow not detected |
| n/a | Pinned-Dependencies | no dependencies found |
| 0 | SAST | SAST tool is not run on all commits -- score normalized to 0 |
| 0 | Security-Policy | security policy file not detected |
| 0 | Signed-Releases | Project has not signed or included provenance with any releases. |
| n/a | Token-Permissions | No tokens found |
| 10 | Vulnerabilities | 0 existing vulnerabilities detected |
All dependencies 0
Full resolved dependency set from the GitHub dependency graph: 0 direct and 0 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|
Dependency advisories not assessed
Advisory matching could not run for this report: No resolved dependencies to assess
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": "fuzzing",
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{
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{
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{
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"code": "no_data",
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"max_points": 5
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{
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{
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{
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{
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"details": [
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"code": "no_data",
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],
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{
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]
},
{
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],
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"components": [
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]
}
],
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{
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"name": "AI Readiness",
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"weight": 0,
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"components": [
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"status": "missed",
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],
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{
"key": "machine_readable_docs_llms_txt",
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]
},
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"value": 71,
"inputs": {
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{
"key": "automated_tests",
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{
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{
"key": "static_type_checking",
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}
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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 v1.13.0, schema v0.18.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics.