Check Registry

GHS uses a modular check system with a core module (always active) and language-specific modules that activate based on stack detection. Currently 63 health checks across 2 modules.

Modules

Module	Checks	Max Points	Activation
Core	40 scored + 3 INFO	74	Always active
.NET	20 scored + 3 INFO	34	.sln detected in repo root

When a language module is active, scores are combined with weighted averaging:

Combined = core_pct x 60% + language_pct x 40%

If no language module is active, the core score is used at 100% weight.

Core Checks

40 checks across 7 categories covering universal repository best practices.

Scoring

Tier	Checks	Points Each	Subtotal
Tier 1 — Required	4	4	16
Tier 2 — Recommended	22	2	44
Tier 3 — Nice to Have	14 scored + 3 INFO	1	14
Total	40 scored		74

All Core Checks

#	Check	Slug	Tier	Category	Points
1	README exists	readme	1	Documentation	4
2	LICENSE exists	license	1	Documentation	4
3	Repository description set	description	1	Repo Settings	4
4	Branch protection enabled	branch-protection	1	Repo Settings	4
5	.gitignore exists	gitignore	2	Dev Config	2
6	CI/CD workflows present	ci-cd-workflows	2	CI/CD	2
7	CI workflow health	ci-workflow-health	2	CI/CD	2
8	Action version pinning	action-version-pinning	2	CI/CD	2
9	Workflow permissions	workflow-permissions	2	CI/CD	2
10	.editorconfig exists	editorconfig	2	Dev Config	2
11	CODEOWNERS exists	codeowners	2	Dev Config	2
12	Issue templates configured	issue-templates	2	Community	2
13	PR template exists	pr-template	2	Community	2
14	Repository topics set	topics	2	Repo Settings	2
15	CHANGELOG exists	changelog	2	Documentation	2
16	Delete branch on merge	delete-branch-on-merge	2	Repo Settings	2
17	GitHub releases present	github-releases	2	Maintenance	2
18	No stale issues	stale-issues	2	Maintenance	2
19	No stale PRs	stale-prs	2	Maintenance	2
20	No stale branches	stale-branches	2	Maintenance	2
21	Merge strategy configured	merge-strategy	2	Repo Settings	2
22	README has description	readme-description	2	Documentation	2
23	README has badges	readme-badges	2	Documentation	2
24	README has installation	readme-installation	2	Documentation	2
25	README has usage section	readme-usage	2	Documentation	2
26	README has features section	readme-features	2	Documentation	2
27	Workflow naming	workflow-naming	3	CI/CD	1
28	Workflow timeouts	workflow-timeouts	3	CI/CD	1
29	Workflow concurrency	workflow-concurrency	3	CI/CD	1
30	SECURITY.md exists	security-md	3	Community	1
31	CONTRIBUTING.md exists	contributing-md	3	Documentation	1
32	Security alerts enabled	security-alerts	3	Security	1
33	.editorconfig drift	editorconfig-drift	3	Dev Config	1
34	Code of conduct	code-of-conduct	3	Documentation	1
35	Homepage URL set	homepage-url	3	Repo Settings	1
36	.gitattributes exists	gitattributes	3	Dev Config	1
37	Version pinning	version-pinning	3	Dev Config	1
38	Dependency update config	dependency-update-config	3	Security	1
39	README has table of contents	readme-toc	3	Documentation	1
40	README mentions license	readme-license-mention	3	Documentation	1
41	FUNDING.yml exists	funding	3	Documentation	INFO
42	Discussions enabled	discussions-enabled	3	Repo Settings	INFO
43	Commit signoff required	commit-signoff	3	Repo Settings	INFO

By Category

Category	Checks	Description
Documentation	13	README, LICENSE, CHANGELOG, CONTRIBUTING, code of conduct, funding, and README content quality
Repo Settings	8	Description, branch protection, topics, delete-branch-on-merge, merge strategy, homepage URL, discussions, commit signoff
Dev Config	6	.gitignore, .editorconfig, CODEOWNERS, .editorconfig drift, .gitattributes, version pinning
CI/CD	7	Workflow presence, health, version pinning, permissions, naming, timeouts, concurrency
Community	3	Issue templates, PR template, SECURITY.md
Security	2	Security alerts, dependency update config
Maintenance	4	GitHub releases, stale issues, stale PRs, stale branches

.NET Module Checks

23 checks across 4 categories for .NET-specific best practices. Activates when a .sln file is detected in the repository root.

Scoring

Tier	Checks	Points Each	Subtotal
Tier 1 — Required	2	4	8
Tier 2 — Recommended	8	2	16
Tier 3 — Nice to Have	10 scored + 3 INFO	1	10
Total	20 scored		34

All .NET Checks

#	Check	Slug	Tier	Category	Points
1	Directory.Build.props	dotnet-build-props	1	Build Config	4
2	Test Project Exists	dotnet-tests-exist	1	Testing	4
3	Nullable Reference Types	dotnet-nullable	2	Code Quality	2
4	global.json SDK Pinning	dotnet-global-json	2	Build Config	2
5	Code Coverage	dotnet-code-coverage	2	Testing	2
6	Central Package Management	dotnet-central-packages	2	Build Config	2
7	XML Documentation	dotnet-xml-docs	2	Code Quality	2
8	NuGet Metadata	dotnet-nuget-metadata	2	Packaging	2
9	Solution Structure	dotnet-solution-structure	2	Build Config	2
10	Implicit Usings	dotnet-implicit-usings	2	Code Quality	2
11	TreatWarningsAsErrors	dotnet-warnings-as-errors	3	Code Quality	1
12	Deterministic Builds	dotnet-deterministic	3	Build Config	1
13	SourceLink	dotnet-sourcelink	3	Packaging	1
14	Analyzers Configured	dotnet-analyzers	3	Code Quality	1
15	AnalysisLevel	dotnet-analysis-level	3	Code Quality	1
16	Benchmark Project	dotnet-benchmarks	3	Testing	1
17	dotnet-tools.json	dotnet-local-tools	3	Build Config	1
18	AOT Ready	dotnet-aot-ready	3	Packaging	1
19	InternalsVisibleTo	dotnet-internals-visible	3	Testing	1
20	Multi-Targeting	dotnet-multi-target	3	Packaging	1
21	Target Framework	dotnet-target-framework	3	Build Config	INFO
22	Package Count	dotnet-package-count	3	Packaging	INFO
23	Build System	dotnet-build-system	3	Build Config	INFO

By Category

Category	Checks	Description
Build Config	8	Directory.Build.props, global.json, Central Package Management, solution structure, deterministic builds, local tools, target framework, build system
Code Quality	6	Nullable, implicit usings, XML docs, warnings-as-errors, analyzers, analysis level
Testing	4	Test projects, code coverage, benchmarks, InternalsVisibleTo
Packaging	5	NuGet metadata, SourceLink, AOT, multi-targeting, package count

Tier Deep Dives

Core Module

• Tier 1 — Required (4 checks, 4 pts each)
• Tier 2 — Recommended (22 checks, 2 pts each)
• Tier 3 — Nice to Have (17 checks, 1 pt or INFO)

.NET Module

• Tier 1 — Required (2 checks, 4 pts each)
• Tier 2 — Recommended (8 checks, 2 pts each)
• Tier 3 — Nice to Have (13 checks, 1 pt or INFO)