Audits existing .NET test code (MSTest, xUnit, NUnit, TUnit) for anti-patterns and quality issues that undermine reliability and diagnostic value — produces a severity-ranked report (Critical / Warning / Info) with concrete code-level fixes and acknowledgement of what the tests do well. INVOKE THIS SKILL when the user asks to audit, review, rank, or find problems in existing tests — including prompts about: "audit my tests", "audit for .NET test anti-patterns", "test smell audit", "rank by severity", "are these tests good", tests that pass but verify nothing, no/missing assertions, swallowed exceptions, always-true / self-comparing / self-referential / tautological assertions, broad exception types, flakiness (Thread.Sleep, DateTime.Now), ordering dependency, shared static state, reflection coupling, duplicated tests, magic values, coverage touching, coverage inflation. DO NOT USE FOR: writing new tests (use writing-mstest-tests); running tests (use run-tests); framework migration (use migration skills).
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/dotnet/skills/main/plugins/dotnet-test/skills/test-anti-patterns/SKILL.mdRegistry
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