migrate-xunit-to-xunit-v3 SKILL.md skillA
migrate-xunit-to-xunit-v3 from dotnet/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dotnet/skills/migrate-xunit-to-xunit-v3@git:20261009.0478872Pins git:20261009.0478872 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-xunit-to-xunit-v3/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261009.0478872, committed Oct 9, 2026
- First version recorded
- Jun 23, 2026
- Size
- 16,226 bytes
- Repository stars
- 5,836
- License
- MIT
Migrate .NET test projects from xUnit.net v2 to xunit.v3 and fix v3 breaks. Use for package/CPM conversion, OutputType=Exe, preserving the VSTest or MTP runner (including projects currently using YTest.MTP.XUnit2), incompatible TFMs, async void tests, string-to-Type attributes, custom Fact/Theory/BeforeAfterTest attributes, Xunit.SkippableFact, xunit.abstractions/extensibility consolidation, and Xunit.Combinatorial/StaFact compatibility. Do not use for framework conversion or a runner-only…
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.v3 Migration Migrate .NET test projects from xUnit.net v2 to xUnit.net v3. The outcome is a solution where all test projects reference `xunit.v3.*` packages, compiles cleanly, and all tests pass with the same results as before migration. ## When to Use - Upgrading test projects from `xunit` (v2) packages to `xunit.v3` - Resolving compilation errors after updating xunit package references to v3 ## When Not to Use - Migrating between test frameworks (e.g., MSTest or NUnit to xUnit.net) — different effort entirely - Migrating from VSTest to Microsoft.Testing.Platform — use `migrate-vstest-to-mtp` - The projects already reference `xunit.v3` — migration is done ## Inputs | Input | Required | Description | |-------|----------|-------------| | Test project or solution | No | Discover `.csproj`, `.sln`, `.slnx`, central props, and source in the current working directory; ask only if none are found or the target is ambiguous | ## Workspace and Completion Contract - Skill activation is not completion. For migrate/fix/update requests, inspect the staged files, edit them, and run tests in the same task. …
Read the whole file at its exact version.
How to install
mdr add dotnet/skills/migrate-xunit-to-xunit-v3@sha256:bf3b800a363b1dbfThe line at the top of this page pins the label git:20261009.0478872, 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_5ssdjq6rtynim43q)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 23, 2026 and Oct 9, 2026, about one every 36 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261009.0478872 latest | 2026-10-09 | 0478872 | 16,226 B | A | view · diff |
| git:20260831.f775756 | 2026-08-31 | f775756 | 15,732 B | A | view · diff |
| git:20260828.2b9056b | 2026-08-28 | 2b9056b | 11,240 B | A | view · diff |
| git:20260623.35ace77 | 2026-06-23 | 35ace77 | 8,926 B | A | view |
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 (16226 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
dotnet/skills · 5,836 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ssdjq6rtynim43q GET https://markdownregistry.com/api/v1/resolve?ref=dotnet/skills/migrate-xunit-to-xunit-v3 GET https://markdownregistry.com/api/v1/blob/bf3b800a363b1dbfd1e4d6c0c1debb772fb603a24d6bc8ff7e42a077f755f235
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.