awesome-copilot/prompts/dotnet-design-pattern-review.prompt.md
Daniel Scott-Raynsford d260c65769 Add prompts for .NET best practices, design pattern review, GitHub Copilot suggestions, and various update tasks
- Created a prompt for .NET/C# best practices to ensure code quality and adherence to standards.
- Added a design pattern review prompt for evaluating C#/.NET code implementations.
- Introduced prompts for suggesting relevant GitHub Copilot chatmodes and prompts based on repository context.
- Developed a prompt for updating Azure Verified Modules in Bicep files to the latest versions.
- Implemented a prompt for updating implementation plans with new requirements and features.
- Created a prompt for updating the llms.txt file to reflect changes in documentation or specifications.
- Added a prompt for updating markdown file indexes with files from specified folders.
- Developed a prompt for updating object-oriented component documentation according to best practices.
- Created a prompt for updating specification files to align with new requirements and ensure AI-readiness.
2025-07-07 12:51:24 +12:00

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.NET/C# Design Pattern Review

Review the C#/.NET code in ${selection} for design pattern implementation and suggest improvements for the solution/project.

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

  • Design Patterns: Identify patterns used. Are Command Handler, Factory, Provider, and Repository patterns correctly implemented? Missing beneficial patterns?
  • Architecture: Follow namespace conventions ({Core|Console|App|Service}.{Feature})? Proper separation between Core/Console projects? Modular and readable?
  • .NET Best Practices: Primary constructors, async/await with Task returns, ResourceManager usage, structured logging, strongly-typed configuration?
  • GoF Patterns: Command, Factory, Template Method, Strategy patterns correctly implemented?
  • SOLID Principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion violations?
  • Performance: Proper async/await, resource disposal, ConfigureAwait(false), parallel processing opportunities?
  • Maintainability: Clear separation of concerns, consistent error handling, proper configuration usage?
  • Testability: Dependencies abstracted via interfaces, mockable components, async testability, AAA pattern compatibility?
  • Security: Input validation, secure credential handling, parameterized queries, safe exception handling?
  • Documentation: XML docs for public APIs, parameter/return descriptions, resource file organization?
  • Code Clarity: Meaningful names reflecting domain concepts, clear intent through patterns, self-explanatory structure?
  • Clean Code: Consistent style, appropriate method/class size, minimal complexity, eliminated duplication?

Improvement Focus Areas

  • Command Handlers: Validation in base class, consistent error handling, proper resource management
  • Factories: Dependency configuration, service provider integration, disposal patterns
  • Providers: Connection management, async patterns, exception handling and logging
  • Configuration: Data annotations, validation attributes, secure sensitive value handling
  • AI/ML Integration: Semantic Kernel patterns, structured output handling, model configuration

Provide specific, actionable recommendations for improvements aligned with the project's architecture and .NET best practices.