migrate-nunit-to-mstest SKILL.md skillA

migrate-nunit-to-mstest from dotnet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add dotnet/skills/migrate-nunit-to-mstest@git:20260909.e4c942d

Pins git:20260909.e4c942d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
dotnet/skills
Path
plugins/dotnet-test-migration/skills/migrate-nunit-to-mstest/SKILL.md
Versions recorded
1
Latest version
git:20260909.e4c942d, committed Sep 9, 2026
Size
15,316 bytes
Repository stars
5,836
License
MIT

Convert .NET tests from NUnit 3/4 to MSTest v4 while preserving VSTest or MTP. Use for replacing NUnit/NUnit3TestAdapter packages, Test/TestCase/ TestCaseSource/Values attributes, constraint assertions, SetUp/TearDown, OneTimeSetUp, SetUpFixture, FixtureLifeCycle, TestContext, categories, retries, timeouts, and NUnit parallelization. Also use when a "convert NUnit to MSTest" request may already be migrated: inspect and report the no-op. Do not use for NUnit version upgrades, xUnit/TUnit…

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

# NUnit -> MSTest Migration

Convert NUnit 3 or 4 tests to MSTest v4 without changing the target framework or test platform. A successful migration builds, discovers the same test cases, and preserves pass/fail, lifecycle, data, filtering, and concurrency semantics.

## Scope

Use this skill only when the project contains NUnit packages or source and the user wants MSTest. If the project already uses MSTest and contains no NUnit tests, report that no framework migration is needed and make no changes.

Do not combine this framework conversion with a target-framework upgrade or VSTest/MTP migration. Complete and verify one migration before starting another.

## Workspace Contract

- Search the current working directory for projects and source; never look for user files under this skill's directory.
- Classify the deliverable: "convert this project" means edit, build, and test; "give me a plan" means answer without editing.
- Preserve the user's requested project scope. Shared props may be changed only when they own NUnit package or runner configuration for that scope.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add dotnet/skills/migrate-nunit-to-mstest@sha256:8325e081033a26e9

The line at the top of this page pins the label git:20260909.e4c942d, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ofn5d7lnarxezywg.svg)](https://markdownregistry.com/a/art_ofn5d7lnarxezywg)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 9, 2026.

versioncommittedcommitsizeaudit
git:20260909.e4c942d latest2026-09-09 e4c942d 15,316 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (15316 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

GitHub

dotnet/skills · 5,836 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ofn5d7lnarxezywg
GET https://markdownregistry.com/api/v1/resolve?ref=dotnet/skills/migrate-nunit-to-mstest
GET https://markdownregistry.com/api/v1/blob/8325e081033a26e9457332e0fce388ffc043972062cffb5cbe7bf920a1274c36

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.

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