Use this skill before answering or editing whenever an MSTest v1/v2 project is being upgraded or repaired for v3. Triggers include QualityTools assembly references; MSTest.TestFramework/TestAdapter 1.x-2.x; "upgrade to MSTest v3"; comparing v1 and v2 migration paths; choosing MSTest or MSTest.Sdk; CS0411/CS1503 after a v3 package bump; DataRow type mismatch, MSTEST0014, or "Test data doesn't…
Install
npx skills add dotnet/skills --skill migrate-mstest-v1v2-to-v3npx skills add dotnet/skills --skill migrate-mstest-v1v2-to-v3 -a claude-code -gnpx skills add dotnet/skills --skill migrate-mstest-v1v2-to-v3 -a codex -ggemini skills install https://github.com/dotnet/skills.git --path plugins/dotnet-test-migration/skills/migrate-mstest-v1v2-to-v3gh skill install dotnet/skills migrate-mstest-v1v2-to-v3git clone --depth 1 https://github.com/dotnet/skills /tmp/dotnet__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/dotnet__skills/plugins/dotnet-test-migration/skills/migrate-mstest-v1v2-to-v3 ~/.claude/skills/migrate-mstest-v1v2-to-v3 # Claude Code
cp -R /tmp/dotnet__skills/plugins/dotnet-test-migration/skills/migrate-mstest-v1v2-to-v3 ~/.agents/skills/migrate-mstest-v1v2-to-v3 # Codex, Cursor, Gemini CLI, Copilot, OpenCode