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Found 230 Skills
Expert-level C# development with .NET 8+, ASP.NET Core, LINQ, async/await, and enterprise patterns
C# and .NET development patterns
Get best practices for TUnit unit testing, including data-driven tests
Create, edit, and convert Markdown documents (.md) using Syncfusion Markdown. Supports two modes — generate C# code for the user's project or execute a task via CSX script. Use when the user mentions markdown, .md files, markdown generation, Syncfusion Markdown.
Coordinates logging, error handling, CORS, health checks, and API docs
Generate Umbraco CMS installation scripts using the Package Script Writer CLI
Use Verify for snapshot testing in .NET. Approve API surfaces, HTTP responses, rendered emails, and serialized outputs. Detect unintended changes through human-reviewed baseline files.
Implement Domain-Driven Design tactical patterns in C#/.NET. Use when building Entities, Value Objects, Aggregates, Domain Events, Repositories, or structuring a DDD solution. Framework-agnostic — covers pure domain modeling with modern C#.
A specialized skill for handling complex object comparison and deep validation. Use when you need to compare deep objects, exclude specific properties, handle circular references, or validate DTO/Entity. Covers BeEquivalentTo, Excluding, Including, custom comparison rules, etc. Keywords: object comparison, deep comparison, BeEquivalentTo, DTO comparison, Entity validation, property exclusion, circular reference, Excluding, Including, ExcludingNestedObjects, RespectingRuntimeTypes, WithStrictOrdering, ignore timestamp, exclude timestamp
Guidance for consuming REST APIs in .NET MAUI apps. Covers HttpClient setup with System.Text.Json, DI registration, service interface/implementation pattern, full CRUD operations (GET, POST, PUT, DELETE), error handling, platform-specific clear-text traffic configuration, and async/await best practices. Use when adding API calls, creating data services, or wiring up HttpClient in a MAUI project.
Upgrades .NET NuGet packages with breaking change handling
Migrate a .NET 8 project to .NET 9 and resolve all breaking changes. USE FOR: upgrading TargetFramework from net8.0 to net9.0, fixing build errors after updating the .NET 9 SDK, resolving behavioral changes in .NET 9 / C# 13 / ASP.NET Core 9 / EF Core 9, replacing BinaryFormatter (now always throws), resolving SYSLIB0054-SYSLIB0057, adapting to params span overload resolution, fixing C# 13 compiler changes, updating HttpClientFactory for SocketsHttpHandler, and resolving EF Core 9 migration/Cosmos DB changes. DO NOT USE FOR: .NET Framework migrations, upgrading from .NET 7 or earlier, greenfield .NET 9 projects, or cosmetic modernization unrelated to the upgrade.