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Get Started Free →dotnet/msbuild-modernization
Guide for modernizing and migrating MSBuild project files to SDK-style format. USE FOR: converting legacy .csproj/.vbproj with verbose XML to SDK-style, migrating packages.config to PackageReference, removing Properties/AssemblyInfo.cs in favor of auto-generation, eliminating explicit <Compile Include> lists via implicit globbing, consolidating shared settings into Directory.Build.props. Indicators of legacy projects: ToolsVersion attribute, <Import Project="$(MSBuildToolsPath)">, .csproj files
Passed 22 of 22 test cases with the skill, and 21 of 22 without it.
1 fixed21 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
We have XML schema files located outside the project folder at ..\shared\Schemas\*.xsd that must be compiled as embedded resources. How should this be written in an SDK-style project?
| Checked | Without skill | With skill |
|---|---|---|
| Uses EmbeddedResource Include tag with external path and LinkBase attribute. | Missed | Passed |
The instructions your model reads when the skill loads.
Legacy indicators:
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /><Compile Include="..." /> for every .cs file)ToolsVersion attribute on <Project> elementpackages.config file presentProperties\AssemblyInfo.cs with assembly-level attributesSDK-style indicators:
<Project Sdk="Microsoft.NET.Sdk"> attribute on root element<PackageReference> items instead of packages.configQuick check: if a .csproj is more than 50 lines for a simple class library or console app, it is likely legacy format.
<!-- Legacy: ~80+ lines for a simple library -->
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<OutputType>Library</OutputType>
<RootNamespace>MyLibrary</RootNamespace>
<AssemblyName>MyLibrary</AssemblyName>
<TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<Deterministic>true</Deterministic>
</PropertyGroup>
<!-- ... 60+ more lines ... -->
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>
test cases passed, vs 21 / 22 without
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