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platform-detection

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Identify a .NET project's test platform, framework, command mode, and SDK-style vs classic project system. Use only for "which test platform/framework?", "VSTest or MTP?", or "what runner does this project use?", including bridge settings, UseVSTest opt-outs, and incompatible or conflicting VSTest/MTP configuration. Resolves global.json, project, packages.config, Directory.Build.props, and Directory.Packages.props precedence for MSTest/xUnit/NUnit/TUnit. DO NOT USE when the user asks to run/filter tests or for commands, flags, TRX/dumps, or test-command/filter errors; use run-tests directly. Do not route hot-reload or migration requests here as the entry skill; mtp-hot-reload may use this skill internally for platform detection.

plugins/dotnet-test/skills/platform-detection/SKILL.md

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Yes
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Network or broad shell
Last checked
Nov 9, 2026

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Repository stars (not skill ratings)
5,895
Repository last updated
Nov 9, 2026
License
MIT

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# Test Platform and Framework Detection

Determine **which test platform** (VSTest or Microsoft.Testing.Platform) and **which test framework** (MSTest, xUnit, NUnit, TUnit) a project uses.

## Response contract

Honor the user's requested labels and order exactly, substituting the actual
classification for every placeholder. Start with the verdict: never put a
heading, scratch analysis, tool syntax, or an echoed template before it. Follow
with one concise evidence sentence naming the repository facts needed to justify
every requested classification. When `Framework` is requested, name the package
or project SDK that identifies it. Use a second sentence only for a conflict, an
incomplete configuration, or target-framework-specific differences.
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