Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-09-11 03:51 UTC

martinothamar / Mediator

A high performance implementation of Mediator pattern in .NET using source generators.

C#MIT★ 3,718 stars⑂ 182 forkssince Mar 2021View on GitHub ↗

martinothamar/Mediator holds a health index of 77 out of 100, placing it in the Good band. It scores highest on AI Readiness (83/100) and lowest on Security (54/100). It was last updated 9 days ago. A single contributor accounts for most of its recent work.

77
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.

77
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 66 is calibrated to 77 on the published index scale (record calibration 2026-08-02).

Ownership

Martin OthamarPersonal account
279 followers79 public repossince Sep 2013@Forse

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
NuGetMediator.Abstractions3.0.2-12172 days agomediatormediator-patternsource-generationsource-gensource-generatorsourcegeneratorc#dotnet

Metrics by category

Vitality

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

59Moderate · 21% of overall
How it's scored
28.8/36Push recency — last push 9 days ago
6.9/36Commit cadence — 10/52 weeks with commits
13.4/18Commit volume — 30 commits in the last year
0/10OpenSSF Scorecard: Maintained — 1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Inputs used
commits_last_year30
human_commit_share1
days_since_last_push9
active_weeks_last_year10
How it's scored
27/27Ships releases — 10 releases published
27/36Release recency — latest release 172 days ago
12.6/27Release cadence — a release every ~166.8 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count10
latest_release_tagv3.1.0-rc.1
releases_from_tagsno
days_since_latest_release172
mean_days_between_releases166.8
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?

82Excellent · 17% of overall
How it's scored
57.9/60Stars — 3,718 stars
18.8/25Forks — 182 forks
9.2/15Watchers — 47 watchers
Inputs used
forks182
stars3,718
watchers47
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges6
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_servicesshields.io
has_pull_request_templateno
How it's scored
73.2/80Total downloads — 11,198,853 downloads all-time across nuget
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagesMediator.Abstractions
dependents—
ecosystemsnuget
total_downloads11,198,853
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?

65Good · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
3.4/22.5Commit distribution — top contributor authored 85% of commits
13.5/13.5Contributor breadth — 17 contributors
10/10OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10
Inputs used
bus_factor1
contributors_sampled17
top_contributor_share0.849
How it's scored
31.2/42Issue resolution — 74% of issues closed
27.5/30PR acceptance — 123/134 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
1.5/15OpenSSF Scorecard: Code-Review — Found 3/30 approved changesets -- score normalized to 1
Inputs used
merged_prs123
open_issues33
closed_issues96
prs_merged_7d0
prs_decided_7d0
prs_merged_30d1
prs_decided_30d1
issue_closed_ratio0.744
closed_unmerged_prs11
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
10/30Ownership backing — personal (user) account
0/20Verified domain — not applicable to user accounts
17.6/25Owner reach — 279 followers of martinothamar
25/25Track record — 79 public repos, account ~13 yr old
Inputs used
followers279
owner_typeUser
is_verified—
owner_loginmartinothamar
public_repos79
account_age_days4,748
Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.

Package maintenance

100Exceptional
How it's scored
25/25Published & resolvable — 1 package(s) on nuget
35/35Publish recency — latest publish 172 days ago
20/20Version history — 12 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagesMediator.Abstractions
ecosystemsnuget
any_deprecatedno
min_days_since_publish172

Engineering Quality

Are baseline engineering and documentation practices in place?

67Good · 19% of overall
How it's scored
24/24CI workflows — 12 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
6.4/6.4.editorconfig
18/20OpenSSF Scorecard: CI-Tests — 27 out of 28 merged PRs checked by a CI test -- score normalized to 9
Inputs used
has_ciyes
has_testsyes
has_editorconfigyes
has_linter_configno
has_precommit_configno

Documentation

60Moderate
How it's scored
30/30README
0/25Documentation directory
0/15Documentation / homepage site
10/10Repository description
10/10Topics — 12 topics
10/10Wiki
Inputs used
topicscsharp, dotnet, dotnetcore, dotnet-core, source-generation, source-gen, sourcegenerator, source-generators, dotnet-standard, csharp-sourcegenerator, mediator, mediator-pattern
has_wikiyes
homepage—
docs_site—
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

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

54Moderate · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
2.2/2.5CI-Tests — 27 out of 28 merged PRs checked by a CI test -- score normalized to 9
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0.8/7.5Code-Review — Found 3/30 approved changesets -- score normalized to 1
2.5/2.5Contributors — project has 3 contributing companies or organizations -- score normalized to 10
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
0/7.5Maintained — 1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
5/5Packaging — packaging workflow detected
2.5/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 5
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated17
scorecard_versionv5.5.0
checks_inconclusive1
scorecard_aggregate4.2
Excluded from scoring (no data or not applicable): Signed-Releases. Remaining weights renormalized.

Dependency advisories

100Exceptional
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
0/25Indirect dependencies free of known advisories — transitive set not separable from development and test dependencies in this scope
0/40No advisories left outstanding — no advisory carries a publication date
Inputs used
sourceosv
advisories3
affected_packages1
assessed_packages15
unassessed_packages44
affected_by_severitymoderate 1
direct_affected_packages0
Excluded from scoring (no data or not applicable): Indirect dependencies free of known advisories, No advisories left outstanding. Remaining weights renormalized. Matched 15 resolved dependencies against OSV. 44 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list. This repository publishes no package the index resolves, so the repository dependency graph was assessed instead. That graph mixes development and test pins with shipped dependencies, so only the declared runtime dependencies are scored; transitive findings are reported as context and excluded from the score. 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.

83Excellent · 4% of overall
How it's scored
45/45Agent instructions — AGENTS.md
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://opentelemetry.io/llms.txt)
36.3/40Legible commit history — 68 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://opentelemetry.io/llms.txt
legible_history_share0.68
agent_instruction_filesAGENTS.md
agent_instruction_max_bytes1,454
How it's scored
18/18One-command bootstrap — Justfile, benchmarks/Justfile
22/22Automated tests
0/11Lint / format config
11/11Static type checking — C# (statically typed)
10/10Reproducible environment — Dockerfile
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
5/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 5
Inputs used
has_nixno
has_testsyes
lockfiles—
has_dockerfileyes
typed_languageyes
bootstrap_filesJustfile, benchmarks/Justfile
has_devcontainerno
has_linter_configno
typecheck_configs—
agent_commit_share0
toolchain_manifestsbenchmarks/Mediator.Benchmarks.ColdStart/Mediator.Benchmarks.ColdStart.csproj, benchmarks/Mediator.Benchmarks/Mediator.Benchmarks.csproj, samples/Showcase/Showcase.csproj, samples/apps/ASPNET_CORE_Blazor/AspNetCoreBlazor.Client/AspNetCoreBlazor.Client.csproj, samples/apps/ASPNET_CORE_Blazor/AspNetCoreBlazor/AspNetCoreBlazor.csproj, samples/apps/ASPNET_Core/ASPNET_Core.csproj, samples/apps/ASPNET_Core_CleanArchitecture/AspNetCoreSample.Api/AspNetCoreSample.Api.csproj, samples/apps/ASPNET_Core_CleanArchitecture/AspNetCoreSample.Application/AspNetCoreSample.Application.csproj, samples/apps/ASPNET_Core_CleanArchitecture/AspNetCoreSample.Domain/AspNetCoreSample.Domain.csproj, samples/apps/ASPNET_Core_CleanArchitecture/AspNetCoreSample.Infrastructure/AspNetCoreSample.Infrastructure.csproj, samples/apps/ASPNET_Core_Indirect/AspNetCoreIndirect.Application/AspNetCoreIndirect.Application.csproj, samples/apps/ASPNET_Core_Indirect/AspNetCoreIndirect.BaseClasses/AspNetCoreIndirect.BaseClasses.csproj, samples/apps/ASPNET_Core_Indirect/AspNetCoreIndirect.Implementations/AspNetCoreIndirect.Implementations.csproj, samples/apps/InternalMessages/InternalMessages.Api/InternalMessages.Api.csproj, samples/apps/InternalMessages/InternalMessages.Application/InternalMessages.Application.csproj, samples/apps/InternalMessages/InternalMessages.Domain/InternalMessages.Domain.csproj, samples/basic/Console/Console.csproj, samples/basic/ConsoleAOT/ConsoleAOT.csproj, samples/basic/NetFramework/Console/Console.csproj, samples/basic/NotificationPublisher/NotificationPublisher.csproj, samples/basic/Notifications/Notifications.csproj, samples/basic/StreamProcessing/StreamProcessing.csproj, samples/basic/Streaming/Streaming.csproj, samples/use-cases/Autofac_DI/Autofac_DI.csproj, samples/use-cases/MassTransitIntegration/MassTransitIntegration.csproj, samples/use-cases/RequestScopedState/RequestScopedState.csproj, src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj, src/Mediator/Mediator.csproj, test/Mediator.MemAllocationTests/Mediator.MemAllocationTests.csproj, test/Mediator.SmokeTestConsole/Mediator.SmokeTestConsole.csproj, test/Mediator.SourceGenerator.Tests/Mediator.SourceGenerator.Tests.csproj, test/Mediator.Telemetry.Tests/Mediator.Telemetry.Tests.csproj, test/Mediator.Tests/Mediator.Tests.csproj
dependency_bot_commit_share0
How it's scored
45/45Type-checkable code — C# (statically typed)
37.7/55Manageable file sizes — 134/426 source files over 60KB
Inputs used
primary_languageC#
largest_source_bytes384,884
source_files_sampled426
oversized_source_files134
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
0/20MCP server — not applicable to this kind of software
40/40Runnable examples — samples
Inputs used
example_dirssamples
has_mcp_signalno
api_schema_files—
interfaces_expected_of—
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto), MCP server. Remaining weights renormalized.

Key facts

3,718GitHub stars
17contributors
30commits, last 12 months
9days since last push
10releases
1bus factor
33open issues
—package ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 182 ⇿
0Stars
182Forks
10Releases

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.

04080120160200182122021-052024-012026-08
Major 0Minor 0Patch 1

Each point covers 5 days.

OpenSSF Scorecard 4.2 / 10
4.2aggregate

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 · 2026-09-11 03:51 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
9CI-Tests27 out of 28 merged PRs checked by a CI test -- score normalized to 9
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
1Code-ReviewFound 3/30 approved changesets -- score normalized to 1
10Contributorsproject has 3 contributing companies or organizations -- score normalized to 10
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained1 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
10Packagingpackaging workflow detected
5Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 5
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 14
RegistryPackageVersion constraintManifest
NuGetScriban—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetSystem.Threading.Tasks.Extensions—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetSystem.Runtime.CompilerServices.Unsafe—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.CodeAnalysis.CSharp.Workspaces—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.CodeAnalysis.CSharp—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.CodeAnalysis.Common—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.CodeAnalysis.Analyzers—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.CSharp—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetPolySharp—src/Mediator.SourceGenerator/Mediator.SourceGenerator.csproj
NuGetMicrosoft.Extensions.DependencyInjection.Abstractions—src/Mediator/Mediator.csproj
NuGetMicrosoft.Bcl.AsyncInterfaces—src/Mediator/Mediator.csproj
NuGetSystem.Runtime.CompilerServices.Unsafe—src/Mediator/Mediator.csproj
NuGetSystem.Collections.Immutable—src/Mediator/Mediator.csproj
NuGetPolySharp—src/Mediator/Mediator.csproj
All dependencies 59

Full resolved dependency set from the GitHub dependency graph: 12 direct and 47 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
NuGetMicrosoft.Bcl.AsyncInterfaces—direct
NuGetMicrosoft.CodeAnalysis.Analyzers—direct
NuGetMicrosoft.CodeAnalysis.Common—direct
NuGetMicrosoft.CodeAnalysis.CSharp—direct
NuGetMicrosoft.CodeAnalysis.CSharp.Workspaces—direct
NuGetMicrosoft.CSharp—direct
NuGetMicrosoft.Extensions.DependencyInjection.Abstractions—direct
NuGetPolySharp—direct
NuGetScriban—direct
NuGetSystem.Collections.Immutable—direct
NuGetSystem.Runtime.CompilerServices.Unsafe—direct
NuGetSystem.Threading.Tasks.Extensions—direct
NuGetAutofac.Extensions.DependencyInjection10.0.0indirect
NuGetBenchmarkDotNet—indirect
NuGetBenchmarkDotNet.Diagnostics.dotTrace—indirect
NuGetBenchmarkDotNet.Diagnostics.Windows—indirect
NuGetBuildalyzer.Workspaces—indirect
NuGetcoverlet.collector—indirect
NuGetFluentAssertions—indirect
NuGetFluentValidation12.1.0indirect
NuGetFluentValidation.AspNetCore11.3.1indirect
NuGetJetBrains.DotMemoryUnit—indirect
NuGetMassTransit8.5.5indirect
NuGetMediator.Abstractions—indirect
NuGetMediator.SourceGenerator—indirect
NuGetMediatR—indirect
NuGetMicrosoft.AspNetCore.Components.WebAssembly10.0.0indirect
NuGetMicrosoft.AspNetCore.Components.WebAssembly.Server10.0.0indirect
NuGetMicrosoft.AspNetCore.OpenApi10.0.0indirect
NuGetMicrosoft.Build—indirect
NuGetMicrosoft.Build.Locator—indirect
NuGetMicrosoft.Build.Tasks.Core—indirect
NuGetMicrosoft.Build.Utilities.Core—indirect
NuGetMicrosoft.CodeAnalysis.VisualBasic—indirect
NuGetMicrosoft.CodeAnalysis.VisualBasic.Workspaces—indirect
NuGetMicrosoft.CodeAnalysis.Workspaces.Common—indirect
NuGetMicrosoft.CodeAnalysis.Workspaces.MSBuild—indirect
NuGetMicrosoft.Extensions.DependencyInjection—indirect
NuGetMicrosoft.Extensions.DependencyInjection10.0.0indirect
NuGetMicrosoft.Extensions.Hosting—indirect
NuGetMicrosoft.Extensions.Logging—indirect
NuGetMicrosoft.Extensions.Logging.Abstractions10.0.0indirect
NuGetMicrosoft.NET.Test.Sdk—indirect
NuGetNuGet.ProjectModel—indirect
NuGetOneOf3.0.271indirect
NuGetOpenTelemetry.Exporter.OpenTelemetryProtocol1.15.0indirect
NuGetOpenTelemetry.Extensions.Hosting1.15.0indirect
NuGetOpenTelemetry.Instrumentation.AspNetCore1.15.0indirect
NuGetRiok.Mapperly4.3.0indirect
NuGetSwashbuckle.AspNetCore.SwaggerUI10.0.0indirect
NuGetSystem.Configuration.ConfigurationManager—indirect
NuGetSystem.Linq.Async—indirect
NuGetVerify.DiffPlex—indirect
NuGetVerify.SourceGenerators—indirect
NuGetVerify.XunitV3—indirect
NuGetXunit.Combinatorial—indirect
NuGetxunit.runner.visualstudio—indirect
NuGetxunit.v3—indirect
NuGetxunit.v3.assert—indirect
Dependency advisories 1

This repository publishes no package the index resolves, so its own dependency graph was assessed — 15 packages, which also include development and test pins that never ship: 1 carry known advisories, of which 0 are direct. 44 could not be assessed — no resolved version, an unsupported ecosystem, or beyond the reported package list.

PackageVersionRelationSeverityAdvisoriesFixed in
OpenTelemetry.Exporter.OpenTelemetryProtocol1.15.0indirectmoderate31.15.3

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 v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — NuGet.