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TenantGuard

0004. The analyzers target netstandard2.0 on Roslyn 4.8.0

  • Status: Accepted
  • Date: 2026-10-29

Context

Section titled “Context”

Roslyn loads analyzers into the compiler of whichever IDE or SDK builds the project, from Visual Studio 2022 to the newest SDK, and only a netstandard2.0 analyzer loads in all of them. An analyzer compiled against a newer Roslyn than the host’s doesn’t load.

Decision

Section titled “Decision”

TenantGuard.Analyzers targets netstandard2.0, references Microsoft.CodeAnalysis.CSharp 4.8.0 (the lowest version with everything TG001 to TG004 use, which keeps Visual Studio 2022 working) with EnforceExtendedAnalyzerRules, and ships two ways: on its own, and bundled in the runtime package under analyzers/dotnet/cs. It needs no reference to the runtime package, so it recognizes [AllowCrossTenantAccess] by its full name.

Consequences

Section titled “Consequences”
  • Installing the runtime package turns the analyzers on with no further setup.
  • A rename of AllowCrossTenantAccessAttribute would switch TG001 and TG003 off silently, so the architecture tests check the name the analyzers match against the real attribute.