Public recordGood
Software health reportschema 0.12.0 · metrics 1.13.0 · 2026-07-18 12:55 UTC
mesonbuild / meson-python
Meson PEP 517 Python build backend
mesonbuild/meson-python holds a health index of 72 out of 100, placing it in the Good band. It scores highest on Engineering Quality (92/100) and lowest on AI Readiness (29/100). It was last updated 12 days ago. A single contributor accounts for most of its recent work.
72
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.
72
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
The Meson Build SystemOrganization
221 followers176 public repossince May 2015
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 |
|---|---|---|---|---|---|---|
| PyPI | meson-python | 0.20.0 | 15,037,960 | 29 | 37 days ago | mesonbuildbackendpep517package |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
68
Development activity
66Moderate
How it's scored
| 28.8/36 | Push recency — last push 12 days ago |
| 11.1/36 | Commit cadence — 16/52 weeks with commits |
| 16.2/18 | Commit volume — 63 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 28 commit(s) and 11 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 63 |
| human_commit_share | — |
| days_since_last_push | 12 |
| active_weeks_last_year | 16 |
Release discipline
72Good
How it's scored
| 16.2/27 | Ships releases — 28 version tags (no GitHub releases) |
| 36/36 | Release recency — latest release 37 days ago |
| 12.6/27 | Release cadence — a release every ~126.6 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 28 |
| latest_release_tag | 0.20.0 |
| releases_from_tags | yes |
| days_since_latest_release | 37 |
| mean_days_between_releases | 126.6 |
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?
66
Popularity & adoption
58Moderate
How it's scored
| 36.5/60 | Stars — 180 stars |
| 16.2/25 | Forks — 89 forks |
| 5.8/15 | Watchers — 12 watchers |
Inputs used
| forks | 89 |
| stars | 180 |
| 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 |
| 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 — 15,037,960 downloads/month across pypi |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | meson-python |
| dependents | — |
| ecosystems | pypi |
| total_downloads | — |
| monthly_downloads | 15,037,960 |
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)
43At risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 10.6/22.5 | Commit distribution — top contributor authored 53% of commits |
| 13.5/13.5 | Contributor breadth — 34 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 43 contributing companies or organizations |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 34 |
| top_contributor_share | 0.527 |
How it's scored
| 39.4/46.8 | Issue resolution — 84% of issues closed |
| 32.9/38.3 | PR acceptance — 399/464 decided PRs merged |
| 12/15 | OpenSSF Scorecard: Code-Review — Found 13/15 approved changesets -- score normalized to 8 |
Inputs used
| merged_prs | 399 |
| open_issues | 51 |
| closed_issues | 272 |
| issue_closed_ratio | 0.842 |
| closed_unmerged_prs | 65 |
Ownership & stewardship
72Good
How it's scored
| 30/30 | Ownership backing — organization-owned |
| 0/20 | Verified domain |
| 16.9/25 | Owner reach — 221 followers of mesonbuild |
| 25/25 | Track record — 176 public repos, account ~11 yr old |
Inputs used
| followers | 221 |
| owner_type | Organization |
| is_verified | — |
| owner_login | mesonbuild |
| public_repos | 176 |
| account_age_days | 4,075 |
Package maintenance
100Excellent
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on pypi |
| 35/35 | Publish recency — latest publish 37 days ago |
| 20/20 | Version history — 29 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | meson-python |
| ecosystems | pypi |
| any_deprecated | no |
| min_days_since_publish | 37 |
Engineering Quality
Are baseline engineering and documentation practices in place?
92
Engineering practices
94Excellent
How it's scored
| 24/24 | CI workflows — 3 workflow(s) |
| 24/24 | Tests present |
| 16/16 | Linter config |
| 9.6/9.6 | Pre-commit hooks |
| 0/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 15 out of 15 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 | yes |
| has_precommit_config | yes |
Documentation
90Excellent
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 15/15 | Documentation / homepage site — https://mesonbuild.com/meson-python/ |
| 10/10 | Repository description |
| 0/10 | Topics |
| 10/10 | Wiki |
Inputs used
| topics | — |
| has_wiki | yes |
| homepage | https://mesonbuild.com/meson-python/ |
| has_readme | yes |
| has_docs_dir | yes |
| has_description | yes |
Security
Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?
57
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 |
| 2.5/2.5 | CI-Tests — 15 out of 15 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 |
| 6/7.5 | Code-Review — Found 13/15 approved changesets -- score normalized to 8 |
| 2.5/2.5 | Contributors — project has 43 contributing companies or organizations |
| 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 — 28 commit(s) and 11 issue activity found in the last 90 days -- score normalized to 10 |
| 5/5 | Packaging — packaging workflow detected |
| 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 | 16 |
| scorecard_version | v5.5.0 |
| checks_inconclusive | 2 |
| scorecard_aggregate | 5.7 |
Excluded from scoring (no data or not applicable): branch_protection, 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.
29
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
| 0/18 | One-command bootstrap |
| 22/22 | Automated tests |
| 11/11 | Lint / format config |
| 0/11 | Static type checking |
| 0/10 | Reproducible environment |
| 0/10 | Demonstrated agent practice — no data |
| 0/8 | Automated maintenance — no data |
| 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 | no |
| bootstrap_files | — |
| has_devcontainer | no |
| has_linter_config | yes |
| typecheck_configs | — |
| agent_commit_share | — |
| toolchain_manifests | — |
| dependency_bot_commit_share | — |
Excluded from scoring (no data or not applicable): Demonstrated agent practice, Automated maintenance. Remaining weights renormalized.
Code legibility for models
55Moderate
How it's scored
| 0/45 | Type-checkable code — Python without a type-check config |
| 55/55 | Manageable file sizes — 0/102 source files over 60KB |
Inputs used
| primary_language | Python |
| largest_source_bytes | 56,121 |
| source_files_sampled | 102 |
| oversized_source_files | 0 |
Key facts
180GitHub stars
34contributors
63commits, last 12 months
12days since last push
28releases
1bus factor
51open issues
PyPIpackage ecosystems
More detail
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 |
| 10 | CI-Tests | 15 out of 15 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 |
| 8 | Code-Review | Found 13/15 approved changesets -- score normalized to 8 |
| 10 | Contributors | project has 43 contributing companies or organizations |
| 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 | 28 commit(s) and 11 issue activity found in the last 90 days -- score normalized to 10 |
| 10 | Packaging | packaging workflow 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 6
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| PyPI | meson | >= 0.64.0 | pyproject.toml |
| PyPI | meson | >= 1.2.3 | pyproject.toml |
| PyPI | packaging | >= 23.2 | pyproject.toml |
| PyPI | packaging | >= 24.2 | pyproject.toml |
| PyPI | pyproject-metadata | >= 0.9.0 | pyproject.toml |
| PyPI | tomli | >= 1.0.0 | pyproject.toml |
All dependencies 40
Full resolved dependency set from the GitHub dependency graph: 3 direct and 37 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| PyPI | meson | — | direct |
| PyPI | packaging | — | direct |
| PyPI | pyproject-metadata | — | direct |
| PyPI | a | — | indirect |
| PyPI | auditwheel | — | indirect |
| PyPI | b | — | indirect |
| PyPI | backend | — | indirect |
| PyPI | backends | — | indirect |
| PyPI | backport | — | indirect |
| PyPI | c | — | indirect |
| PyPI | config | — | indirect |
| PyPI | cpython | — | indirect |
| PyPI | cygwin | — | indirect |
| PyPI | cython | — | indirect |
| PyPI | distro | — | indirect |
| PyPI | eg | — | indirect |
| PyPI | executables | — | indirect |
| PyPI | frontend | — | indirect |
| PyPI | furo | — | indirect |
| PyPI | github | — | indirect |
| PyPI | macos | — | indirect |
| PyPI | numpy | — | indirect |
| PyPI | pluggy | — | indirect |
| PyPI | pre | — | indirect |
| PyPI | pypa | — | indirect |
| PyPI | pyproject | — | indirect |
| PyPI | pytest | — | indirect |
| PyPI | rpath | — | indirect |
| PyPI | sdist | — | indirect |
| PyPI | sdists | — | indirect |
| PyPI | setuptools | — | indirect |
| PyPI | sphinx | — | indirect |
| PyPI | sphinx-copybutton | — | indirect |
| PyPI | sphinx-design | — | indirect |
| PyPI | sphinxext-opengraph | — | indirect |
| PyPI | todo | — | indirect |
| PyPI | toml | — | indirect |
| PyPI | uncommited | — | indirect |
| PyPI | vendored | — | indirect |
| PyPI | vendoring | — | indirect |
Raw JSON report machine-readable
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"Python": 181246
},
"pushed_at": "2026-07-06T04:11:36Z",
"created_at": "2021-08-26T17:45:10Z",
"owner_type": "Organization",
"updated_at": "2026-07-15T15:55:23Z",
"description": "Meson PEP 517 Python build backend",
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"ai_readiness": {
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{
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{
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},
{
"name": "vendored",
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},
{
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}
],
"collected": true,
"truncated": false,
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"direct_count": 3,
"indirect_count": 37
}
},
"maintainership": {
"issues": {
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"merged_prs": 399,
"open_issues": 51,
"closed_ratio": 0.842,
"closed_issues": 272,
"closed_unmerged_prs": 65
},
"bus_factor": 1,
"top_contributors": [
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"login": "dnicolodi",
"commits": 472,
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"components": [
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}
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},
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"generated_at": "2026-07-18T12:55:00.193293Z",
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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 v0.12.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — PyPI.