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ErnestPenaJr
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csharp-validator

Validate C# code quality for .NET applications using Roslyn analyzers.

Updated Jan 23, 2025
Search Tags:#csharp#static analysis#code review#best practices#security#validation#dotnet
One-click install
npx skills add https://github.com/ErnestPenaJr/Project-32 --skill csharp-validator
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: csharp-validator
Source: https://github.com/ErnestPenaJr/Project-32/tree/main/.claude/skils/csharp-validator
Command: npx skills add https://github.com/ErnestPenaJr/Project-32 --skill csharp-validator

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires Microsoft.CodeAnalysis.NetAnalyzers, StyleCop.Analyzers, SonarAnalyzer.CSharp, Roslynator.Analyzers.

What problem does it solve?

Manual C# code reviews are slow, inconsistent, and prone to missing critical issues like security vulnerabilities or SOLID principle violations. This skill automates that, ensuring high-quality, secure, and maintainable .NET applications.

Core Features & Use Cases

  • Automated Code Review: Applies Roslyn Analyzers, .editorconfig, and senior developer standards (SOLID, async/await, nullable reference types).
  • Security & Performance Checks: Identifies potential SQL injection, N+1 queries, and other common pitfalls.
  • Use Case: Before a pull request, automatically validate all C# code changes against a comprehensive set of best practices, ensuring every commit meets high quality and security standards without manual oversight.

Quick Start

Install core Roslyn Analyzers:

dotnet add package Microsoft.CodeAnalysis.NetAnalyzers dotnet add package StyleCop.Analyzers dotnet add package SonarAnalyzer.CSharp dotnet add package Roslynator.Analyzers

Then, enable all analyzers in Directory.Build.props:

<PropertyGroup> <AnalysisMode>All</AnalysisMode> <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild> <Nullable>enable</Nullable> <TreatWarningsAsErrors Condition="'$(Configuration)' == 'Release'">true</TreatWarningsAsErrors> </PropertyGroup>

Frequently Asked Questions about csharp-validator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate C# code quality checks in my .NET build pipeline?▼

Automate C# code quality by integrating Roslyn analyzers—Microsoft.CodeAnalysis.NetAnalyzers, StyleCop.Analyzers, SonarAnalyzer.CSharp, and Roslynator.Analyzers—into your project. Enable them in Directory.Build.props with AnalysisMode=All, EnforceCodeStyleInBuild=true, and TreatWarningsAsErrors in Release builds to catch violations at compile time.

What security and best-practice issues can static analysis detect in C# code?▼

Static analysis identifies SQL injection risks, N+1 query patterns in EF Core, SOLID principle violations, async/await misuse, nullable reference type issues, and code-style inconsistencies. These checks enforce security, performance, and maintainability standards without manual review.

Can I enforce nullable reference types and SOLID principles automatically in C#?▼

Yes. Enable nullable reference types with Nullable=enable in Directory.Build.props, then use Roslyn analyzers to detect unsafe null dereferences. Pair with SOLID-focused analyzers to flag dependency violations, tight coupling, and interface segregation problems during builds.

How do I configure .editorconfig rules with Roslyn analyzers for C# validation?▼

.editorconfig files define code-style rules that Roslyn analyzers enforce during analysis. Configure analyzers via Directory.Build.props with EnforceCodeStyleInBuild=true to apply .editorconfig settings as build-time validation, ensuring consistent style across your codebase.

What's the difference between static analysis and manual code review for .NET projects?▼

Static analysis runs automatically on every build, catching style, security, and performance issues consistently and instantly. Manual review is slower and error-prone; automated analysis complements it by filtering out routine violations, letting reviewers focus on architecture and logic.

Do I need all four analyzer packages, or can I use a subset for C# validation?▼

You can use a subset. Microsoft.CodeAnalysis.NetAnalyzers covers core .NET rules; add StyleCop.Analyzers for style enforcement, SonarAnalyzer.CSharp for security and code smells, and Roslynator.Analyzers for additional refactoring opportunities. Start with NetAnalyzers and layer others based on your team's standards.

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