Public record
Software health reportschema 0.31.0 · metrics 2.10.0 · 2026-08-19 06:16 UTC

LukeMathWalker / cheadergen

Generate C headers for your Rust crates

Rust · C · CythonApache-2.0★ 31 stars⑂ 4 forkssince Mar 2026View on GitHub ↗
KindLibraryCommand-line toolhow this is determined

LukeMathWalker/cheadergen holds a health index of 78 out of 100, placing it in the Good band. It scores highest on Engineering Quality (81/100) and lowest on Security (53/100). It was last updated 3 days ago. A single contributor accounts for most of its recent work.

78
overall / 100
Good

Software 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.

78
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)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

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 67 is calibrated to 78 on the published index scale (record calibration 2026-08-02).

Ownership

Luca PalmieriPersonal account
3,335 followers129 public repossince Jul 2016Mainmatter

This repository is owned by a personal account. A single-owner project carries more continuity risk than an organization-backed one.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iocheadergen0.3.230,642133 days agobindingscode-generationffiheaderexternal-ffi-bindings
crates.iocheadergen_cli0.3.217,210133 days agobindingscode-generationffiexternal-ffi-bindings
crates.iocheadergen_macros0.3.230,587133 days ago

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

80Excellent · 21% of overall
How it's scored
36/36Push recencylast push 3 days ago
10.4/36Commit cadence15/52 weeks with commits
18/18Commit volume238 commits in the last year
10/10OpenSSF Scorecard: Maintained29 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
Inputs used
commits_last_year238
human_commit_share1
days_since_last_push3
active_weeks_last_year15
How it's scored
27/27Ships releases12 releases published
36/36Release recencylatest release 3 days ago
27/27Release cadencea release every ~10.8 days
0/10OpenSSF Scorecard: Signed-ReleasesProject has not signed or included provenance with any releases.
Inputs used
releases_count12
latest_release_tag0.3.2
releases_from_tagsno
days_since_latest_release3
mean_days_between_releases10.8

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

56Moderate · 17% of overall
How it's scored
24/60Stars31 stars
4/25Forks4 forks
0/15Watchers2 watchers
Inputs used
forks4
stars31
watchers2
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5Licenserecognized license (Apache-2.0)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services
has_pull_request_templateno
How it's scored
65.3/80Monthly downloads78,439 downloads/month across crates
0/20Registry dependentsnot reported by this ecosystem
Inputs used
packagescheadergen, cheadergen_cli, cheadergen_macros
dependents
ecosystemscrates
total_downloads253,503
monthly_downloads78,439
unverified_packages_excluded
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?

60Moderate · 23% of overall
How it's scored
9/54Bus factor1 contributor(s) cover half of all commits
0.5/22.5Commit distributiontop contributor authored 98% of commits
4.1/13.5Contributor breadth3 contributors
6/10OpenSSF Scorecard: Contributorsproject has 2 contributing companies or organizations -- score normalized to 6
Inputs used
bus_factor1
contributors_sampled3
top_contributor_share0.979
How it's scored
14/42Issue resolution33% of issues closed
30/30PR acceptance28/28 decided PRs merged
13/13Newcomer PR acceptance4/4 first-time contributors' PRs merged in 30d
3/15OpenSSF Scorecard: Code-ReviewFound 5/24 approved changesets -- score normalized to 2
Inputs used
merged_prs28
open_issues4
closed_issues2
prs_merged_7d3
prs_decided_7d3
prs_merged_30d5
prs_decided_30d5
issue_closed_ratio0.333
closed_unmerged_prs0
first_time_authors_30d1
first_time_prs_merged_30d4
first_time_prs_decided_30d4
How it's scored
10/30Ownership backingpersonal (user) account
0/20Verified domainnot applicable to user accounts
25/25Owner reach3,335 followers of LukeMathWalker
25/25Track record129 public repos, account ~10 yr old
Inputs used
followers3,335
owner_typeUser
is_verified
owner_loginLukeMathWalker
public_repos129
account_age_days3,671
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable3 package(s) on crates
35/35Publish recencylatest publish 3 days ago
20/20Version history13 published versions
20/20Not deprecatedactive, not deprecated or yanked
Inputs used
packagescheadergen, cheadergen_cli, cheadergen_macros
ecosystemscrates
any_deprecatedno
min_days_since_publish3

Engineering Quality

Are baseline engineering and documentation practices in place?

81Excellent · 19% of overall
How it's scored
24/24CI workflows5 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
20/20OpenSSF Scorecard: CI-Tests19 out of 19 merged PRs checked by a CI test -- score normalized to 10
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno

Documentation

100Exceptional
How it's scored
30/30README
25/25Documentation directory
15/15Documentation / homepage sitehttps://docs.rs/cheadergen
10/10Repository description
10/10Topics3 topics
10/10Wiki
Inputs used
topicsc, rust, header-generation
has_wikiyes
homepage
docs_sitehttps://docs.rs/cheadergen
has_readmeyes
has_docs_diryes
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

53Moderate · 16% of overall
How it's scored
7.5/7.5Binary-Artifactsno binaries found in the repo
2.2/7.5Branch-Protectionbranch protection is not maximal on development and all release branches
2.5/2.5CI-Tests19 out of 19 merged PRs checked by a CI test -- score normalized to 10
0/2.5CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
1.5/7.5Code-ReviewFound 5/24 approved changesets -- score normalized to 2
1.5/2.5Contributorsproject has 2 contributing companies or organizations -- score normalized to 6
10/10Dangerous-Workflowno dangerous workflow patterns detected
0/7.5Dependency-Update-Toolno update tool detected
0/5Fuzzingproject is not fuzzed
2.5/2.5Licenselicense file detected
7.5/7.5Maintained29 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
5/5Packagingpackaging workflow detected
0/5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0/5SASTSAST tool is not run on all commits -- score normalized to 0
0/5Security-Policysecurity policy file not detected
0/7.5Signed-ReleasesProject has not signed or included provenance with any releases.
0/7.5Token-Permissionsdetected GitHub workflow tokens with excessive permissions
3/7.5Vulnerabilities6 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated18
scorecard_versionv5.5.0
checks_inconclusive0
scorecard_aggregate4.1

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisoriesno direct dependency carries a known advisory
25/25Indirect dependencies free of known advisoriesno indirect dependency carries a known advisory
0/40No advisories left outstandingno advisory carries a publication date
Inputs used
sourceosv
advisories0
affected_packages0
assessed_packages21
unassessed_packages0
affected_by_severitynone
direct_affected_packages0
Excluded from scoring (no data or not applicable): No advisories left outstanding. Remaining weights renormalized. Matched the crates:cheadergen@0.3.2 runtime dependency closure — what installing the published package pulls in — 21 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.

81Excellent · 4% of overall
How it's scored
45/45Agent instructionsAGENTS.md
0/15Machine-readable docs (llms.txt)
40/40Legible commit history100 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
llms_txt_url
legible_history_share1
agent_instruction_filesAGENTS.md
agent_instruction_max_bytes3,694
How it's scored
18/18One-command bootstrapjustfile
22/22Automated tests
0/11Lint / format config
11/11Static type checkingRust (statically typed)
10/10Reproducible environmentlockfile
10/10Demonstrated agent practice5 of the last 100 commits agent-authored or agent-credited
0/8Automated maintenanceno automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilesCargo.lock
has_dockerfileno
typed_languageyes
bootstrap_filesjustfile
has_devcontainerno
has_linter_configno
typecheck_configs
agent_commit_share0.05
toolchain_manifestsCargo.toml, cheaderdiff/Cargo.toml, cheadergen/Cargo.toml, cheadergen_cli/Cargo.toml, cheadergen_macros/Cargo.toml, ui-tests/cbindgen/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/abi_string/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/alias/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/annotation/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/array/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/as_ty/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/asserted_cast/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/assoc_const_conflict/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/assoc_constant/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/associated_constant_panic/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/associated_in_body/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/bitfield/Cargo.toml, 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ui-tests/cbindgen/tests/cbindgen/rust/cases/dep_v2/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/dep_v2/dep/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/deprecated/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/derive_eq/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/derive_ostream/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/destructor_and_copy_ctor/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/display_list/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/doclength_short/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/docstyle_auto/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/docstyle_c99/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/docstyle_doxy/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/documentation/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/documentation_attr/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/documentation_block/Cargo.toml, 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ui-tests/cbindgen/tests/cbindgen/rust/cases/layout_packed_opaque/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/lifetime_arg/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/linestyle_cr/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/linestyle_crlf/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/linestyle_lf/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/literal_target/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/mangle/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/manuallydrop/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/maybeuninit/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/mod_2015/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/mod_2018/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/mod_attr/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/mod_path/Cargo.toml, ui-tests/cbindgen/tests/cbindgen/rust/cases/monomorph_1/Cargo.toml, 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ui-tests/cheadergen/tests/cheadergen/rust/cases/unsafe_extern_block/Cargo.toml, ui-tests/cheadergen/tests/cheadergen/rust/cases/unsupported_constant/Cargo.toml, ui-tests/cheadergen/tests/cheadergen/rust/cases/usize_is_size_t_global/Cargo.toml, ui-tests/cheadergen/tests/cheadergen/rust/cases/usize_is_size_t_per_package/dep/Cargo.toml, ui-tests/cheadergen/tests/cheadergen/rust/cases/usize_is_size_t_per_package/entrypoint/Cargo.toml, ui-tests/cheadergen/tests/cheadergen/rust/cases/zst_fields/Cargo.toml, ui-tests/cli/Cargo.toml, ui-tests/toolkit/Cargo.toml
dependency_bot_commit_share0
How it's scored
45/45Type-checkable codeRust (statically typed)
55/55Manageable file sizes1/1,288 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes66,598
source_files_sampled1,288
oversized_source_files1

Key facts

31GitHub stars
3contributors
238commits, last 12 months
3days since last push
12releases
1bus factor
4open issues
crates.iopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • Could not fetch crates package 'cheaderdiff' from its registry
  • GitHub dependency-graph SBOM unavailable (404); the dependency graph may be disabled for this repository

More detail

Star and fork history 0 ★ / 4 ⇿
0Stars
4Forks
3Releases

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.

1223344412026-062026-072026-08
Major 0Minor 1Patch 2
OpenSSF Scorecard 4.1 / 10
4.1aggregate

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).Scorecard v5.5.0 · 2026-08-19 06:16 UTC

10Binary-Artifactsno binaries found in the repo
3Branch-Protectionbranch protection is not maximal on development and all release branches
10CI-Tests19 out of 19 merged PRs checked by a CI test -- score normalized to 10
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
2Code-ReviewFound 5/24 approved changesets -- score normalized to 2
6Contributorsproject has 2 contributing companies or organizations -- score normalized to 6
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
10Maintained29 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 10
10Packagingpackaging workflow detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
0Signed-ReleasesProject has not signed or included provenance with any releases.
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
4Vulnerabilities6 existing vulnerabilities detected
Direct dependencies 24
RegistryPackageVersion constraintManifest
crates.ioanyhow1cheaderdiff/Cargo.toml
crates.iotree-sitter0.25cheaderdiff/Cargo.toml
crates.iotree-sitter-c0.23cheaderdiff/Cargo.toml
crates.iocheadergen_macroscheadergen/Cargo.toml
crates.ioannotate-snippets0.11cheadergen_cli/Cargo.toml
crates.ioanyhow1cheadergen_cli/Cargo.toml
crates.iobincode2cheadergen_cli/Cargo.toml
crates.iocamino1cheadergen_cli/Cargo.toml
crates.ioclap4cheadergen_cli/Cargo.toml
crates.ioserde1cheadergen_cli/Cargo.toml
crates.iotoml1cheadergen_cli/Cargo.toml
crates.iofs-err3cheadergen_cli/Cargo.toml
crates.ioheck0.5cheadergen_cli/Cargo.toml
crates.iopathdiff0.2cheadergen_cli/Cargo.toml
crates.iopetgraph0.8cheadergen_cli/Cargo.toml
crates.ioguppycheadergen_cli/Cargo.toml
crates.iorustdoc_ircheadergen_cli/Cargo.toml
crates.iorustdoc_processorcheadergen_cli/Cargo.toml
crates.iorustdoc_resolvercheadergen_cli/Cargo.toml
crates.iorustdoc-typescheadergen_cli/Cargo.toml
crates.ioxdg-home1cheadergen_cli/Cargo.toml
crates.iosyn2cheadergen_macros/Cargo.toml
crates.ioquote1cheadergen_macros/Cargo.toml
crates.ioproc-macro21cheadergen_macros/Cargo.toml
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

Dependency advisories 0

Installing crates:cheadergen@0.3.2 pulls in 21 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

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

The message is kept through sign-in.

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 v2.10.0, schema v0.31.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statisticscrates.io.