dotnet-design-pattern-review

SKILL.md

Comprehensive C#/.NET design pattern analysis with actionable improvement recommendations.

Evaluates six core patterns: Command, Factory, Dependency Injection, Repository, Provider, and Resource patterns against GoF and SOLID principles

Analyzes architecture compliance including namespace conventions, project separation, async/await patterns, and structured logging implementation

Reviews code quality across security, testability, maintainability, and performance dimensions with specific focus on primary constructors and ConfigureAwait usage

Identifies missing or incorrectly implemented patterns and suggests concrete refactoring strategies aligned with .NET best practices

Checks XML documentation, resource file organization, input validation, and credential handling without modifying the original code

.NET/C# Design Pattern Review

Review the C#/.NET code in ${selection} for design pattern implementation and suggest improvements for the solution/project. Do not make any changes to the code, just provide a review.

Required Design Patterns

Command Pattern: Generic base classes (CommandHandler<TOptions>), ICommandHandler<TOptions> interface, CommandHandlerOptions inheritance, static SetupCommand(IHost host) methods

Factory Pattern: Complex object creation service provider integration

Dependency Injection: Primary constructor syntax, ArgumentNullException null checks, interface abstractions, proper service lifetimes

Repository Pattern: Async data access interfaces provider abstractions for connections

Provider Pattern: External service abstractions (database, AI), clear contracts, configuration handling

Resource Pattern: ResourceManager for localized messages, separate .resx files (LogMessages, ErrorMessages)

Review Checklist