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Enterprise C# 13 development with .NET 9, async/await, LINQ, Entity Framework Core, ASP.NET Core, and Context7 MCP integration for modern backend and enterprise applications.
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
直接コマンドでは確認用 Prompt が省略されます。実行前にソースを確認してください。
npx skills add https://github.com/AJBcoding/claude-skill-eval --skill moai-lang-csharpコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
ローカルで確認しますか？SkillsMP が現在取得できるファイルをダウンロードできます。
Enterprise database architecture specialist with PostgreSQL 17, MySQL 8.4 LTS, MongoDB 8.0, Redis 7.4 expertise. Master connection pooling, query optimization, caching strategies, and database DevOps automation. Build scalable, resilient database systems with comprehensive monitoring and disaster recovery.
Enterprise Frontend Development with AI-powered modern architecture, Context7 integration, and intelligent component orchestration for scalable user interfaces
Enterprise-grade security expertise with production-ready patterns for OWASP Top 10 2021, zero-trust architecture, threat modeling (STRIDE, PASTA), secure SDLC, DevSecOps automation, cloud security, cryptography, identity & access management, and compliance frameworks (SOC 2, ISO 27001, GDPR, CCPA).
SOC 職業分類に基づく
SKILL.md を表示中
| name | moai-lang-csharp |
| version | 4.0.0 |
| created | 2025-11-11T00:00:00.000Z |
| updated | 2025-11-12T00:00:00.000Z |
| status | stable |
| description | Enterprise C# 13 development with .NET 9, async/await, LINQ, Entity Framework Core, ASP.NET Core, and Context7 MCP integration for modern backend and enterprise applications. |
| keywords | ["csharp","dotnet9","csharp13","aspnetcore","entityframework","backend","async","context7","enterprise"] |
| allowed-tools | ["Read","Bash","mcp__context7__resolve-library-id","mcp__context7__get-library-docs"] |
| Field | Value |
|---|---|
| Skill Name | moai-lang-csharp |
| Version | 4.0.0 (2025-11-12) |
| Allowed tools | Read, Bash, Context7 MCP |
| Auto-load | On demand when keywords detected |
| Tier | Language Enterprise |
| Context7 Integration | ✅ C#/.NET/ASP.NET Core/EF Core |
Enterprise C# 13 development featuring async/await for modern concurrency, LINQ for powerful data queries, Entity Framework Core for ORM, ASP.NET Core for web applications, and production-ready patterns for scalable backend services. Context7 MCP integration provides real-time access to official C#/.NET documentation.
Key capabilities:
Automatic triggers:
Manual invocation:
| Component | Version | Purpose | Status |
|---|
| C# | 13.0.0 | Core language | ✅ Current |
| .NET | 9.0.0 | Runtime & SDK | ✅ Current |
| ASP.NET Core | 9.0.0 | Web framework | ✅ Current |
| Entity Framework Core | 9.0.0 | ORM | ✅ Current |
| xUnit | 2.9.0 | Testing framework | ✅ Current |
| LINQ | Built-in | Data queries | ✅ Current |
using System;
using System.Threading.Tasks;
public class HelloWorld
{
public async Task<string> GreetAsync(string name)
{
await Task.Delay(100);
return $"Hello, {name}!";
}
}
// Usage
var greeter = new HelloWorld();
var greeting = await greeter.GreetAsync("C#");
Console.WriteLine(greeting);
Async/Await - Modern asynchronous programming
async - Returns Taskawait - Waits for resultthrowsLINQ - Language-Integrated Query
Entity Framework Core - ORM framework
ASP.NET Core - Web application framework
Dependency Injection - Inversion of control
MyApp/
├── Program.cs # Application entry
├── Models/ # Data models
├── Services/ # Business logic
├── Controllers/ # API endpoints
├── DbContext/ # Database context
├── Migrations/ # Database migrations
├── Tests/ # Unit tests
└── appsettings.json # Configuration
public async Task<User> GetUserAsync(int id)
{
using var client = new HttpClient();
var response = await client.GetAsync($"https://api.example.com/users/{id}");
response.EnsureSuccessStatusCode();
return await response.Content.ReadAsAsync<User>();
}
// Concurrent operations
public async Task<(Users, Posts)> GetUserDataAsync(int id)
{
var users = GetUsersAsync(id);
var posts = GetPostsAsync(id);
await Task.WhenAll(users, posts);
return (await users, await posts);
}
// Fluent syntax
var results = _users
.Where(u => u.Age > 18)
.OrderBy(u => u.Name)
.Select(u => new { u.Name, u.Email })
.ToList();
// Lazy evaluation - query not executed until ToList()
var query = _users.Where(u => u.IsActive);
var count = query.Count(); // Executes here
public class ApplicationDbContext : DbContext
{
public DbSet<User> Users { get; set; }
public DbSet<Post> Posts { get; set; }
}
// CRUD operations
var user = await context.Users.FirstOrDefaultAsync(u => u.Id == id);
context.Users.Add(newUser);
await context.SaveChangesAsync();
var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();
app.MapGet("/users/{id}", async (int id, ApplicationDbContext db) =>
await db.Users.FindAsync(id) is User user
? Results.Ok(user)
: Results.NotFound());
app.Run();
Get latest C#/.NET documentation on-demand:
# Access C# documentation via Context7
from context7 import resolve_library_id, get_library_docs
# C# Language Documentation
csharp_id = resolve_library_id("csharp")
docs = get_library_docs(
context7_compatible_library_id=csharp_id,
topic="async-await-patterns",
tokens=5000
)
# Entity Framework Core Documentation
ef_id = resolve_library_id("entity-framework-core")
ef_docs = get_library_docs(
context7_compatible_library_id=ef_id,
topic="querying-data",
tokens=4000
)
# ASP.NET Core Documentation
aspnetcore_id = resolve_library_id("aspnetcore")
aspnetcore_docs = get_library_docs(
context7_compatible_library_id=aspnetcore_id,
topic="dependency-injection",
tokens=3000
)
Language Integration:
Quality & Testing:
Security & Performance:
Official Resources:
Problem: NullReferenceException
Solution: Use null-coalescing operator ?? and null-conditional ?.
Problem: Async deadlock
Solution: Use .ConfigureAwait(false) in library code or ensure all calls are awaited
Problem: N+1 query problem
Solution: Use .Include() for eager loading or projection with Select
Problem: Configuration not loading Solution: Ensure appsettings.json is in correct location and properly configured
For working examples: See examples.md
For API reference: See reference.md
For advanced patterns: See full SKILL.md in documentation archive
Last updated: 2025-11-12 | Maintained by moai-adk team