Public recordGood
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-08 07:03 UTC
NightOwl888 / J2N
Java-like Components for .NET
NightOwl888/J2N holds a health index of 65 out of 100, placing it in the Good band. It scores highest on Vitality (71/100) and lowest on Security (49/100). It was last updated today. A single contributor accounts 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, 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.
65
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 60 is calibrated to 65 on the published index scale (record calibration 2026-08-02).
Ownership
Shad StorhaugPersonal account
128 followers135 public repossince Mar 2012
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 | J2N | 2.1.0 | - | 2 | 687 days ago | javadotnetcharsequencebytebuffercollectionsstringbufferlinkedhashsetlinkedhashmapcomparablestructural-equalitytreemaptreesetstringtokenizerappendablecontentequalscodepointbit-twiddlelru-cache |
Metrics by category
Vitality
Is the project alive — is code being written and are releases shipping?
71
Development activity
68Good
How it's scored
| 36/36 | Push recency — last push 0 days ago |
| 10.4/36 | Commit cadence — 15/52 weeks with commits |
| 13.9/18 | Commit volume — 34 commits in the last year |
| 8/10 | OpenSSF Scorecard: Maintained — 6 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 8 |
Inputs used
| commits_last_year | 34 |
| human_commit_share | 1 |
| days_since_last_push | 0 |
| active_weeks_last_year | 15 |
Release discipline
76Good
How it's scored
| 27/27 | Ships releases — 21 releases published |
| 36/36 | Release recency — latest release 0 days ago |
| 12.6/27 | Release cadence — a release every ~218 days |
| 0/10 | OpenSSF Scorecard: Signed-Releases — Project has not signed or included provenance with any releases. |
Inputs used
| releases_count | 21 |
| latest_release_tag | v2.2.0-alpha-0053 |
| releases_from_tags | no |
| days_since_latest_release | 0 |
| mean_days_between_releases | 218 |
Community & Adoption
Does the project have users, downloads, attention, and a welcoming setup for contributors?
63
Popularity & adoption
39Weak
How it's scored
| 28.6/60 | Stars — 59 stars |
| 9/25 | Forks — 13 forks |
| 1.7/15 | Watchers — 3 watchers |
Inputs used
| forks | 13 |
| stars | 59 |
| watchers | 3 |
| growth_state | unverified |
| growth_factor_pct | 100 |
| growth_unverified_reason | no_history |
Community health
65Good
How it's scored
| 22.5/22.5 | README |
| 22.5/22.5 | License — recognized license (Apache-2.0) |
| 0/18 | CONTRIBUTING guide |
| 13.5/13.5 | Code of conduct |
| 0/7.2 | Issue template |
| 0/6.3 | PR template |
Inputs used
| has_readme | yes |
| has_license | yes |
| readme_badges | 4 |
| has_contributing | no |
| has_issue_template | no |
| has_code_of_conduct | yes |
| readme_badge_services | shields.io |
| has_pull_request_template | no |
Ecosystem adoption (downloads)
97Exceptional
How it's scored
| 77.6/80 | Total downloads — 29,169,120 downloads all-time across nuget |
| 0/20 | Registry dependents — not reported by this ecosystem |
Inputs used
| packages | J2N |
| dependents | — |
| ecosystems | nuget |
| total_downloads | 29,169,120 |
| 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?
56
Maintainer resilience (bus factor)
21At Risk
How it's scored
| 9/54 | Bus factor — 1 contributor(s) cover half of all commits |
| 0.9/22.5 | Commit distribution — top contributor authored 96% of commits |
| 5.4/13.5 | Contributor breadth — 4 contributors |
| 6/10 | OpenSSF Scorecard: Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
Inputs used
| bus_factor | 1 |
| contributors_sampled | 4 |
| top_contributor_share | 0.959 |
Issue & PR responsiveness
80Excellent
How it's scored
| 30.1/42 | Issue resolution — 72% of issues closed |
| 27.9/30 | PR acceptance — 119/128 decided PRs merged |
| 0/13 | Newcomer PR acceptance — no first-time contributor's PR decided in 30d |
| 12/15 | OpenSSF Scorecard: Code-Review — Found 24/30 approved changesets -- score normalized to 8 |
Inputs used
| merged_prs | 119 |
| open_issues | 19 |
| closed_issues | 48 |
| prs_merged_7d | 5 |
| prs_decided_7d | 5 |
| prs_merged_30d | 5 |
| prs_decided_30d | 5 |
| issue_closed_ratio | 0.716 |
| closed_unmerged_prs | 9 |
| first_time_authors_30d | 0 |
| first_time_prs_merged_30d | 0 |
| first_time_prs_decided_30d | 0 |
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
Ownership & stewardship
63Moderate
How it's scored
| 10/30 | Ownership backing — personal (user) account |
| 0/20 | Verified domain — not applicable to user accounts |
| 15.2/25 | Owner reach — 128 followers of NightOwl888 |
| 25/25 | Track record — 135 public repos, account ~14 yr old |
Inputs used
| followers | 128 |
| owner_type | User |
| is_verified | — |
| owner_login | NightOwl888 |
| public_repos | 135 |
| account_age_days | 5,290 |
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.
Package maintenance
71Good
How it's scored
| 25/25 | Published & resolvable — 1 package(s) on nuget |
| 14/35 | Publish recency — latest publish 687 days ago |
| 12/20 | Version history — 2 published versions |
| 20/20 | Not deprecated — active, not deprecated or yanked |
Inputs used
| packages | J2N |
| ecosystems | nuget |
| any_deprecated | no |
| min_days_since_publish | 687 |
Engineering Quality
Are baseline engineering and documentation practices in place?
58
Engineering practices
40Weak
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 |
| 16/20 | OpenSSF Scorecard: CI-Tests — 25 out of 30 merged PRs checked by a CI test -- score normalized to 8 |
Inputs used
| has_ci | no |
| has_tests | yes |
| has_editorconfig | no |
| has_linter_config | no |
| has_precommit_config | no |
Documentation
85Excellent
How it's scored
| 30/30 | README |
| 25/25 | Documentation directory |
| 0/15 | Documentation / homepage site |
| 10/10 | Repository description |
| 10/10 | Topics — 12 topics |
| 10/10 | Wiki |
Inputs used
| topics | text, analysis, bytebuffer, character, atomicinteger, atomiclong, atomicboolean, collections-java, hacktoberfest, linkedhashset, dotnet, java |
| has_wiki | yes |
| homepage | — |
| docs_site | — |
| 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?
49
Security posture
49Weak
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 |
| 2/2.5 | CI-Tests — 25 out of 30 merged PRs checked by a CI test -- score normalized to 8 |
| 0/2.5 | CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected |
| 6/7.5 | Code-Review — Found 24/30 approved changesets -- score normalized to 8 |
| 1.5/2.5 | Contributors — project has 2 contributing companies or organizations -- score normalized to 6 |
| 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 |
| 6/7.5 | Maintained — 6 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 8 |
| 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 |
| 5/5 | Security-Policy — security policy file 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 | 4.9 |
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? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.
57
Agent context & guidance
34At Risk
How it's scored
| 0/45 | Agent instructions — no CLAUDE.md / AGENTS.md / editor rules |
| 0/15 | Machine-readable docs (llms.txt) |
| 34.1/40 | Legible commit history — 64 of 100 human commits state their intent (structured subject or explanatory body) |
Inputs used
| has_llms_txt | no |
| llms_txt_url | — |
| legible_history_share | 0.64 |
| agent_instruction_files | — |
| agent_instruction_max_bytes | — |
Verify loop (build / test / typecheck)
60Moderate
How it's scored
| 12.6/18 | One-command bootstrap — eng/GenerateUnicodeData/GenerateUnicodeData.csproj, eng/J2N.Text.CodeGen/J2N.Text.CodeGen.csproj, src/J2N/J2N.csproj (toolchain convention, no task runner) |
| 22/22 | Automated tests |
| 0/11 | Lint / format config |
| 11/11 | Static type checking — C# (statically typed) |
| 0/10 | Reproducible environment |
| 8/10 | Demonstrated agent practice — 4 of the last 100 commits agent-authored or agent-credited |
| 0/8 | Automated maintenance — no automated dependency updates observed |
| 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 | — |
| has_devcontainer | no |
| has_linter_config | no |
| typecheck_configs | — |
| agent_commit_share | 0.04 |
| toolchain_manifests | eng/GenerateUnicodeData/GenerateUnicodeData.csproj, eng/J2N.Text.CodeGen/J2N.Text.CodeGen.csproj, src/J2N/J2N.csproj, tests/J2N.TestUtilities/J2N.TestUtilities.csproj, tests/NUnit/J2N.TestFramework/J2N.TestFramework.csproj, tests/NUnit/J2N.Tests/J2N.Tests.csproj, tests/Xunit/J2N.Collections.Concurrent.LurchTable.Tests/J2N.Collections.Concurrent.LurchTable.Tests.csproj, tests/Xunit/J2N.Collections.Generic.Dictionary.Tests/J2N.Collections.Generic.Dictionary.Tests.csproj, tests/Xunit/J2N.Collections.Generic.Extensions.Tests/J2N.Collections.Generic.Extensions.Tests.csproj, tests/Xunit/J2N.Collections.Generic.HashSet.Tests/J2N.Collections.Generic.HashSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.LinkedDictionary.Tests/J2N.Collections.Generic.LinkedDictionary.Tests.csproj, tests/Xunit/J2N.Collections.Generic.LinkedHashSet.Tests/J2N.Collections.Generic.LinkedHashSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.List.Tests/J2N.Collections.Generic.List.Tests.csproj, tests/Xunit/J2N.Collections.Generic.Net5.HashSet.Tests/J2N.Collections.Generic.Net5.HashSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.OrderedDictionary.Tests/J2N.Collections.Generic.OrderedDictionary.Tests.csproj, tests/Xunit/J2N.Collections.Generic.OrderedHashSet.Tests/J2N.Collections.Generic.OrderedHashSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.SortedDictionary.Tests/J2N.Collections.Generic.SortedDictionary.Tests.csproj, tests/Xunit/J2N.Collections.Generic.SortedDictionary.TreeSubSet.Tests/J2N.Collections.Generic.SortedDictionary.TreeSubSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.SortedSet.Tests/J2N.Collections.Generic.SortedSet.Tests.csproj, tests/Xunit/J2N.Collections.Generic.SortedSet.TreeSubSet.Tests/J2N.Collections.Generic.SortedSet.TreeSubSet.Tests.csproj, tests/Xunit/J2N.Collections.ObjectModel.Tests/J2N.Collections.ObjectModel.Tests.csproj, tests/Xunit/J2N.Runtime.Tests/J2N.Runtime.Tests.csproj, tests/Xunit/J2N.TestCommon/J2N.TestCommon.csproj, tests/Xunit/J2N.TestUtilities.Xunit.Tests/J2N.TestUtilities.Xunit.Tests.csproj, tests/Xunit/J2N.TestUtilities.Xunit/J2N.TestUtilities.Xunit.csproj |
| dependency_bot_commit_share | 0 |
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Pinned-Dependencies. Remaining weights renormalized.
Code legibility for models
95Exceptional
How it's scored
| 45/45 | Type-checkable code — C# (statically typed) |
| 49.9/55 | Manageable file sizes — 61/654 source files over 60KB |
Inputs used
| primary_language | C# |
| largest_source_bytes | 1,384,633 |
| source_files_sampled | 654 |
| oversized_source_files | 61 |
Key facts
59GitHub stars
4contributors
34commits, last 12 months
0days since last push
21releases
1bus factor
19open issues
—package ecosystems
Data collection warnings
- Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
- No resolved dependencies carried a version and a supported ecosystem
More detail
Star and fork history 0 ★ / 13 ⇿
0Stars
13Forks
16Releases
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.
Major 1Minor 1Patch 0
Each point covers 6 days.
OpenSSF Scorecard 4.9 / 10
4.9aggregate
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 |
| 0 | Branch-Protection | branch protection not enabled on development/release branches |
| 8 | CI-Tests | 25 out of 30 merged PRs checked by a CI test -- score normalized to 8 |
| 0 | CII-Best-Practices | no effort to earn an OpenSSF best practices badge detected |
| 8 | Code-Review | Found 24/30 approved changesets -- score normalized to 8 |
| 6 | Contributors | project has 2 contributing companies or organizations -- score normalized to 6 |
| 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 |
| 8 | Maintained | 6 commit(s) and 4 issue activity found in the last 90 days -- score normalized to 8 |
| 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 |
| 10 | Security-Policy | security policy file 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 |
Direct dependencies 12
| Registry | Package | Version constraint | Manifest |
|---|---|---|---|
| NuGet | Microsoft.CodeAnalysis.CSharp | $(MicrosoftCodeAnalysisCSharpPackageReferenceVersion) | eng/J2N.Text.CodeGen/J2N.Text.CodeGen.csproj |
| NuGet | Microsoft.CodeAnalysis.CSharp.Workspaces | $(MicrosoftCodeAnalysisCSharpWorkspacesPackageReferenceVersion) | eng/J2N.Text.CodeGen/J2N.Text.CodeGen.csproj |
| NuGet | Aigamo.ResXGenerator | $(AigamoResXGeneratorPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | System.Runtime.CompilerServices.Unsafe | $(SystemRuntimeCompilerServicesUnsafePackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | Microsoft.Bcl.Memory | $(MicrosoftBclMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | System.Memory | $(SystemMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | System.Runtime.CompilerServices.Unsafe | $(SystemRuntimeCompilerServicesUnsafePackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | Microsoft.Bcl.Memory | $(MicrosoftBclMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | System.Memory | $(SystemMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | IndexRange | $(IndexRangePackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | NetFx.System.Memory | $(NetFxSystemMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
| NuGet | NetFx.System.Memory | $(NetFxSystemMemoryPackageReferenceVersion) | src/J2N/J2N.csproj |
All dependencies 12
Full resolved dependency set from the GitHub dependency graph: 8 direct and 4 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.
| Registry | Package | Version | Relation |
|---|---|---|---|
| NuGet | Aigamo.ResXGenerator | — | direct |
| NuGet | IndexRange | — | direct |
| NuGet | Microsoft.Bcl.Memory | — | direct |
| NuGet | Microsoft.CodeAnalysis.CSharp | — | direct |
| NuGet | Microsoft.CodeAnalysis.CSharp.Workspaces | — | direct |
| NuGet | NetFx.System.Memory | — | direct |
| NuGet | System.Memory | — | direct |
| NuGet | System.Runtime.CompilerServices.Unsafe | — | direct |
| NuGet | NUnit | — | indirect |
| NuGet | RandomizedTesting.Generators | — | indirect |
| NuGet | System.Buffers | — | indirect |
| NuGet | System.Text.Encoding.CodePages | — | indirect |
Dependency advisories not assessed
Advisory matching could not run for this report: No resolved dependencies carried a version and a supported ecosystem
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 v0.34.0 — full methodology · metrics wiki.
How one result sits in the wider record: aggregate statistics — NuGet.