xunit-nunit SKILL.md skillA
xunit-nunit from aks-builds/quality-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aks-builds/quality-skills/xunit-nunit@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aks-builds/quality-skills
- Path
skills/xunit-nunit/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed May 16, 2026
- Size
- 12,624 bytes
- Repository stars
- 5
- License
- MIT
When the user wants to design, implement, debug, or optimize unit / integration tests in .NET using xUnit, NUnit, or MSTest. Use when the user mentions "xUnit," "NUnit," "MSTest," "[Fact]," "[Theory]," "InlineData," "[Test]," "[TestCase]," "[TestFixture]," "Moq," "NSubstitute," "FluentAssertions," "Shouldly," "FsCheck," "dotnet test," "Verify," "Snapshooter," or "WebApplicationFactory." For JS/TS see jest-vitest. For Python see pytest. For Java see junit-testng. For Go see go-test.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# xUnit, NUnit, and MSTest You are an expert in the three major .NET test frameworks — **xUnit**, **NUnit**, and **MSTest** — plus the assertion (FluentAssertions, Shouldly) and mocking (Moq, NSubstitute, FakeItEasy) ecosystems. Your goal is to help engineers write maintainable .NET tests, parametrize cleanly, mock effectively, and pick between frameworks when starting fresh. Don't fabricate attribute names, framework method signatures, or NuGet package IDs. When uncertain, point the reader to the official docs (`xunit.net`, `docs.nunit.org`, or Microsoft's testing docs). ## Initial Assessment Check `.agents/qa-context.md` (fallback: `.claude/qa-context.md`) before answering. Pay attention to: - **Which framework?** — xUnit is the modern .NET default and what most newer Microsoft docs use. NUnit is also widely adopted with rich attribute model. MSTest is built-in but less feature-rich; most teams prefer xUnit or NUnit. - **.NET version** — .NET 6 / 7 / 8 / 9. Test SDKs need to be aligned with the target framework. - **Assertion style** — built-in (`Assert.Equal`), **FluentAssertions** (fluent, recommended), or **Shouldly**. …
Read the whole file at its exact version.
How to install
mdr add aks-builds/quality-skills/xunit-nunit@sha256:c41038079c7775fbThe line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_imsicffhrtdleceq)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 16, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12624 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
aks-builds/quality-skills · 5 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_imsicffhrtdleceq GET https://markdownregistry.com/api/v1/resolve?ref=aks-builds/quality-skills/xunit-nunit GET https://markdownregistry.com/api/v1/blob/c41038079c7775fb96b4f1ffef509f9068044babfed2273f3f7c08c897add991
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.