Public recordExcellent
Software health reportschema 0.11.0 · metrics 2.10.0 · 2026-07-16 12:37 UTC
aaubry / YamlDotNet
YamlDotNet is a .NET library for YAML
aaubry/YamlDotNet holds a health index of 83 out of 100, placing it in the Excellent band. It scores highest on Community & Adoption (87/100) and lowest on AI Readiness (42/100). It was last updated 19 days ago. 2 contributors account for most of its recent work.
83
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.
83
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 70 is calibrated to 83 on the published index scale (record calibration 2026-08-02).
Ownership
Antoine AubryPersonal account
127 followers50 public repossince Feb 2011
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 |
|---|---|---|---|---|---|---|
| NuGet | YamlDotNet | 18.1.0 | - | 59 | 19 days ago | yamlparserdevelopmentlibraryserialization |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
76
Development activity
66Good
How it's scored
| 28.8/36 | Push recency — last push 19 days ago |
| 9/36 | Commit cadence — 13/52 weeks with commits |
| 18/18 | Commit volume — 103 commits in the last year |
| 10/10 | OpenSSF Scorecard: Maintained — 28 commit(s) and 6 issue activity found in the last 90 days -- score normalized to 10 |
Inputs used
| commits_last_year | 103 |
| human_commit_share | — |
| days_since_last_push | 19 |
| active_weeks_last_year | 13 |
Release discipline
92Excellent
How it's scored
| 27/27 | Ships releases — 93 releases published |
| 36/36 | Release recency — latest release 19 days ago |
| 19.8/27 | Release cadence — a release every ~72.4 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — no data |
Inputs used
| releases_count | 93 |
| latest_release_tag | v18.1.0 |
| releases_from_tags | no |
| days_since_latest_release | 19 |
| mean_days_between_releases | 72.4 |
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?
87
Popularity & adoption
88Excellent
How it's scored
| 56/60 | Stars — 2,843 stars |
| 22.6/25 | Forks — 515 forks |
| 9.8/15 | Watchers — 59 watchers |
Inputs used
| forks | 515 |
| stars | 2,843 |
| watchers | 59 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
77Good
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (MIT) |
| 18/18 | CONTRIBUTING guide |
| 0/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 6.3/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| readme_badges | — |
| has_contributing | yes |
| has_issue_template | no |
| has_code_of_conduct | no |
| readme_badge_services | — |
| has_pull_request_template | yes |
Ecosystem adoption (downloads)
100Exceptional
How it's scored
| 80/80 | Total downloads — 512,386,668 downloads all-time across nuget |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | YamlDotNet |
| dependents | — |
| ecosystems | nuget |
| total_downloads | 512,386,668 |
| monthly_downloads | — |
| 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?
71
Maintainer resilience (bus factor)
60Moderate
How it's scored
| 25.2/54 | Bus factor — 2 contributor(s) cover half of all commits |
| 11.4/22.5 | Commit distribution — top contributor authored 49% of commits |
| 13.5/13.5 | Contributor breadth — 100 contributors |
| 10/10 | OpenSSF Scorecard: Contributors — project has 17 contributing companies or organizations |
Inputs used
| bus_factor | 2 |
| contributors_sampled | 100 |
| top_contributor_share | 0.494 |
How it's scored
| 34.8/42 | Issue resolution — 83% of issues closed |
| 24.2/30 | PR acceptance — 312/387 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 1/8 approved changesets -- score normalized to 1 |
Inputs used
| merged_prs | 312 |
| open_issues | 111 |
| closed_issues | 533 |
| prs_merged_7d | — |
| prs_decided_7d | — |
| prs_merged_30d | — |
| prs_decided_30d | — |
| issue_closed_ratio | 0.828 |
| closed_unmerged_prs | 75 |
| 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
62Moderate
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 15.1/25 | Owner reach — 127 followers of aaubry |
| 24.4/25 | Track record — 50 public repos, account ~15 yr old |
Inputs used
| followers | 127 |
| owner_type | User |
| is_verified | — |
| owner_login | aaubry |
| public_repos | 50 |
| account_age_days | 5,623 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Package maintenance
100Exceptional
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on nuget |
| 35/35 | Publish recency — latest publish 19 days ago |
| 20/20 | Version history — 59 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | YamlDotNet |
| ecosystems | nuget |
| any_deprecated | no |
| min_days_since_publish | 19 |
Engineering Quality
Are baseline engineering and documentation practices in place?
68
Engineering practices
74Good
How it's scored
| 24/24 | CI workflows — 4 workflow(s) |
| 24/24 | Tests present |
| 0/16 | Linter config |
| 0/9.6 | Pre-commit hooks |
| 6.4/6.4 | .editorconfig |
| 20/20 | OpenSSF Scorecard: CI-Tests — 6 out of 6 merged PRs checked by a CI test -- score normalized to 10 |
Inputs used
| has_ci | yes |
| has_tests | yes |
| has_editorconfig | yes |
| 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 — 4 topics |
| 10/10 | Wiki |
Inputs used
| topics | yaml, serialization, dotnet, parser |
| has_wiki | yes |
| homepage | — |
| docs_site | — |
| 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?
54
Security posture
54Moderate
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 |
| 2.5/2.5 | CI-Tests — 6 out of 6 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 1/8 approved changesets -- score normalized to 1 |
| 2.5/2.5 | Contributors — project has 17 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 6 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 |
| 4.5/5 | SAST — SAST tool detected but not run on all commits |
| 5/5 | Security-Policy — security policy file 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 | 5.4 |
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.
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.
42
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 |
| llms_txt_url | — |
| legible_history_share | — |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Excluded from scoring (no data or not applicable): Legible commit history. Remaining weights renormalized.
Verify loop (build / test / typecheck)
52Moderate
How it's scored
| 0/18 | One-command bootstrap |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — C# (statically typed) |
| 10/10 | Reproducible environment — Dockerfile |
| 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 | yes |
| typed_language | yes |
| bootstrap_files | — |
| 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. Remaining weights renormalized.
Code legibility for models
100Exceptional
How it's scored
| 45/45 | Type-checkable code — C# (statically typed) |
| 54.5/55 | Manageable file sizes — 3/349 source files over 60KB |
Inputs used
| primary_language | C# |
| largest_source_bytes | 97,863 |
| source_files_sampled | 349 |
| oversized_source_files | 3 |
Key facts
2,843GitHub stars
100contributors
103commits, last 12 months
19days since last push
93releases
2bus factor
111open issues
NuGetpackage ecosystems
Data collection warnings
- Could not fetch nuget package 'YamlDotNet.Analyzers.StaticGenerator' from its registry
More detail
OpenSSF Scorecard 5.4 / 10
5.4aggregate
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 |
| 10 | CI-Tests | 6 out of 6 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 1/8 approved changesets -- score normalized to 1 |
| 10 | Contributors | project has 17 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 6 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 |
| 9 | SAST | SAST tool detected but not run on all commits |
| 10 | Security-Policy | security policy file 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 14
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| NuGet | Microsoft.CodeAnalysis.CSharp | — | YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj |
| NuGet | Microsoft.CodeAnalysis.Analyzers | — | YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj |
| NuGet | BenchmarkDotNet | — | YamlDotNet.Benchmark/YamlDotNet.Benchmark.csproj |
| NuGet | System.Collections.Immutable | — | YamlDotNet.Benchmark/YamlDotNet.Benchmark.csproj |
| NuGet | System.Reflection.Metadata | — | YamlDotNet.Benchmark/YamlDotNet.Benchmark.csproj |
| NuGet | Microsoft.NET.Test.Sdk | — | YamlDotNet.Samples/YamlDotNet.Samples.csproj |
| NuGet | xunit | — | YamlDotNet.Samples/YamlDotNet.Samples.csproj |
| NuGet | xunit.runner.visualstudio | — | YamlDotNet.Samples/YamlDotNet.Samples.csproj |
| NuGet | FluentAssertions | — | YamlDotNet.Test/YamlDotNet.Test.csproj |
| NuGet | Microsoft.NET.Test.Sdk | — | YamlDotNet.Test/YamlDotNet.Test.csproj |
| NuGet | xunit | — | YamlDotNet.Test/YamlDotNet.Test.csproj |
| NuGet | xunit.runner.visualstudio | — | YamlDotNet.Test/YamlDotNet.Test.csproj |
| NuGet | FakeItEasy | — | YamlDotNet.Test/YamlDotNet.Test.csproj |
| NuGet | Nullable | — | YamlDotNet/YamlDotNet.csproj |
All dependencies 16
Full resolved dependency set from the GitHub dependency graph: 11 direct and 5 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| NuGet | BenchmarkDotNet | — | direct |
| NuGet | FakeItEasy | — | direct |
| NuGet | FluentAssertions | — | direct |
| NuGet | Microsoft.CodeAnalysis.Analyzers | — | direct |
| NuGet | Microsoft.CodeAnalysis.CSharp | — | direct |
| NuGet | Microsoft.NET.Test.Sdk | — | direct |
| NuGet | Nullable | — | direct |
| NuGet | System.Collections.Immutable | — | direct |
| NuGet | System.Reflection.Metadata | — | direct |
| NuGet | xunit | — | direct |
| NuGet | xunit.runner.visualstudio | — | direct |
| NuGet | Bullseye | — | indirect |
| NuGet | coverlet.collector | — | indirect |
| NuGet | FSharp.Core | — | indirect |
| NuGet | Microsoft.AspNet.WebApi.Client | — | indirect |
| NuGet | SimpleExec | — | indirect |
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.
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 v0.11.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — NuGet.