csharp-patternslisted

C# / .NET discipline — ASP.NET Core idioms, Minimal APIs / MVC controllers, async/await end-to-end (no .Result/.Wait()), records for value types, sealed types where inheritance unneeded, IOptions<T> for config, ILogger<T> structured logging, HttpClientFactory not new HttpClient(), EF Core async + AsNoTracking + projection patterns, IExceptionHandler for global errors, MediatR for CQRS. Auto-fires on C# / .NET project files.
Nmor/the-claude-council · ★ 9 · Code & Development · score 69

Install: claude install-skill Nmor/the-claude-council

> Migrated 2026-06-02 from `~/.claude/rules-library/csharp/` as part of the lazy-rules-loading plan. Phase H will delete the source files. # csharp-patterns ## Standards Cited - **ECMA-334** (ecma-international.org/publications-and-standards/standards/ecma-334) — C# Language Specification baseline - **ECMA-335** Common Language Infrastructure (CLI) — runtime semantics - **Microsoft .NET 8 Documentation** (learn.microsoft.com/dotnet) — Minimal APIs, IOptions, ILogger, HttpClientFactory, EF Core 8 patterns - **OWASP ASVS 4.0.3 §5.1** — Input Validation (model binding + DataAnnotations) - **OWASP ASVS 4.0.3 §8.3** — Sensitive Data Protection (Data Protection API patterns) - **OWASP Top 10 A01:2021** Broken Access Control — `[Authorize]` + policy-based authorization - **OWASP Top 10 A03:2021** Injection — parameterised queries (`FromSqlInterpolated` not `FromSqlRaw`) - **CWE-89** SQL Injection — EF Core LINQ-to-SQL safety contract - **CWE-352** Cross-Site Request Forgery — `[ValidateAntiForgeryToken]` discipline - **Semantic Versioning 2.0** (semver.org) — NuGet package versioning  --- paths: - "**/*.cs" - "**/*.csproj" - "**/*.xaml" --- # C# Coding Style > Extends `common/coding-style.md` with C#-specific conventions. ## Naming Conventions - Types/namespaces: `PascalCase` - Public methods/properties