Meziantou.Analyzer

Meziantou.Analyzer is a powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices. It helps you catch real-world problems early—before they reach production—by analyzing your code as you write it and providing automated fixes when possible. Designed for both human developers and AI-assisted workflows, it acts as a safety net to keep your code reliable, consistent, and maintainable.

Installation

Install the NuGet package Meziantou.Analyzer

dotnet package add Meziantou.Analyzer

Rules

If you are already using other analyzers, you can check which rules are duplicated with well-known analyzers

Suppressions

Refactorings

Configuration

You can set the <MeziantouAnalysisMode> MSBuild property to configure the default severity of the rules. Supported values are:

• Default: Uses each rule's default severity
• None: Disables all rules by default
• all-suggestions: Sets all rules to suggestion
• all-warnings: Sets all rules to warning
• all-errors: Sets all rules to error

<Project>
  <PropertyGroup>
    <MeziantouAnalysisMode>all-warnings</MeziantouAnalysisMode>
  </PropertyGroup>
</Project>