dotnet-skills
Tool .NET Quality v1.0.0

.NET Analyzer Configuration

Use a repo-root `.editorconfig` to configure free .NET analyzer and style rules. Use when a .NET repo needs rule severity, code-style options, section layout, or analyzer ownership made explicit. Nested `.editorconfig` files are allowed when they serve a clear subtree-specific purpose.

Trigger On

  • the repo needs a root .editorconfig
  • analyzer severity and style ownership are unclear
  • the team wants one source of truth for rule configuration

Workflow

  1. Prefer one repo-root .editorconfig with root = true.
  2. Add nested .editorconfig files when a subtree has a clear scoped purpose, such as stricter rules, different generated-code handling, or a different policy for tests or legacy code.
  3. Keep severity in .editorconfig, not scattered through IDE settings.
  4. Write the file as real EditorConfig, not as a made-up .NET variant:

- lowercase filename .editorconfig - root = true in the preamble - no inline comments - forward slashes in globs

  1. Keep bulk switches such as EnableNETAnalyzers in MSBuild files, not in .editorconfig.
  2. Treat .globalconfig as an exceptional case, not the normal repo setup.

Deliver

  • one explicit analyzer configuration ownership model
  • a root .editorconfig layout that agents can extend safely

Validate

  • rule severity is reproducible in local and CI builds
  • IDE-only settings do not silently override repo policy
  • the default path is a root .editorconfig, not a surprise alternative

Load References

  • references/analyzer-config.md
  • references/template.md
  • references/rules.md

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Use the free built-in .NET SDK analyzers and analysis levels with gradual Roslyn warning promotion.

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