dotnet/project-system
The .NET Project System for Visual Studio observed · 2026-08-28
Health v2 · maintenance only
67/100
- Activity 99
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3786
- days_rel: n/a
- days_push: 9
- n_releases_24m: 0
Adoption not part of the score
1023 stars · 416 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
The official .NET Project System for Visual Studio, built on the Common Project System (CPS) framework, which connects SDK-style C#, F#, and Visual Basic project files (.csproj/.fsproj/.vbproj) to IDE features such as Solution Explorer, designers, debugger, build, and language services. It replaces the legacy native COM-based project systems with a single managed, multi-threaded implementation that is extensible via MEF by Microsoft and third parties.
Use cases
- manage SDK-style csproj and vbproj projects inside Visual Studio
- extend the Visual Studio project system with custom project properties or rules
- understand or debug how Visual Studio loads .NET project files
- add support for C#, F#, or Visual Basic projects in a Visual Studio extension
- customize project tree and build behavior for .NET projects in the IDE
When to choose
- You are building a Visual Studio extension that interacts with SDK-style .NET projects
- You need to extend or customize how Visual Studio handles .csproj, .vbproj, or .fsproj files
- You want to contribute to or track fixes in the project system that ships with Visual Studio
When to avoid
- You need a build engine or CLI for building .NET projects - use MSBuild or the dotnet CLI instead
- You work outside Visual Studio (VS Code, Rider, command line) since this is a Visual Studio-specific component
- You want Roslyn language services like IntelliSense or refactorings, which live in separate repositories
Facets
plugin · maturity stable
developer-tools build-tool editor developer-tools text-editors windows dotnet editor-plugin visual-studio project-system cps msbuild csproj vbproj fsproj sdk-style-projects csharp visual-basic fsharp mef ide solution-explorer desktop
1 source
- readme: https://github.com/dotnet/project-system · fetched 2026-08-28 · dc1f8a69bfa4
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| dotnet/project-system | main | 67 |
For agents
markdown · JSON · MCP: product_card(name="dotnet/project-system")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem