Master C#/.NET patterns for building production-grade APIs, MCP servers, and enterprise backends with modern best practices (2024/2025).
Master C#/.NET backend development patterns for building robust APIs, MCP servers, and enterprise applications.
Master C#/.NET backend development patterns for building robust APIs, MCP servers, and enterprise applications.
Use Biome in .NET repositories that ship Node-based frontend assets and want a fast combined formatter-linter-import organizer for JavaScript, TypeScript, CSS, JSON, GraphQL, or…
Build and review Blazor applications across server, WebAssembly, web app, and hybrid scenarios with correct component design, state flow, rendering, and hosting choices.
Build .NET solution/projects using dotnet CLI. Use when task involves compiling, restoring dependencies, or building artifacts.
.NET build error diagnosis — MSBuild (MSB*), NuGet (NU*), SDK (NETSDK*), compiler (CS*) errors, dependency conflicts, restore failures, Central Package Management,…
Capture dotnet environment and CI-style build diagnostics with binlog and summary output.
.NET build for Photino apps: csproj config, MSBuild targets, frontend build integration, package refs, version pinning, common build errors.
Guide for Centralized Package Management (CPM) using Directory.Packages.props in .NET projects
Use Chous in .NET repositories that ship sizeable frontend codebases and want file-structure linting, naming convention enforcement, and folder-layout policy as a CLI gate.
Implement CI/CD for .NET applications with GitHub Actions, Azure DevOps, Docker, Kubernetes deployments, automated testing, and release pipelines.
Configure ClickOnce deployment with auto-update, prerequisites, and publish settings for .NET applications
Use the open-source free `cloc` tool for line-count, language-mix, and diff statistics in .NET repositories.
Use the free built-in .NET SDK analyzers and analysis levels with gradual Roslyn warning promotion. Use when a .NET repo needs first-party code analysis, `EnableNETAnalyzers`,…
Review .NET changes for bugs, regressions, architectural drift, missing tests, incorrect async or disposal behavior, and platform-specific pitfalls before you approve or merge…
Use the open-source CodeQL ecosystem for .NET security analysis. Use when a repo needs CodeQL query packs, CLI-based analysis on open source codebases, or GitHub Action setup with…
You are a coder / agent working on a dotnet codebase using the C# language and / or using dotnet tooling.
Use free built-in .NET maintainability analyzers and code metrics configuration to find overly complex methods and coupled code.
Apply these opinionated .NET 8 architecture recipes for backend services: clean architecture layering, CQRS with MediatR, minimal APIs, Entity Framework Core, JWT authentication,…
Use when building .NET 8 applications with minimal APIs, clean architecture, or cloud-native microservices.
.NET 8 cross-platform specialist with expertise in MAUI, EF Core, and modern C# development. Use when building cross-platform .NET apps, working with .NET MAUI, or developing…
Use the open-source free `coverlet` toolchain for .NET code coverage. Use when a repo needs line and branch coverage, collector versus MSBuild driver selection, or CI-safe…
Comprehensive internationalization (i18n) and localization (l10n) for .NET and C++ applications. Generate resource files, manage translations, and implement best practices for…
Guide for building .NET APIs using CQRS pattern with MediatR, FluentValidation, and Carter modules — from engineering/architecture
Guide for building .NET APIs using CQRS pattern with MediatR, FluentValidation, and Carter modules — from majiayu000/claude-skill-registry
Build .NET 8+ applications with C#. Covers ASP.NET Core, Minimal APIs, Entity Framework Core, dependency injection, and testing.
Développement .NET/C# avec ASP.NET Core, EF Core et patterns modernes. Se déclenche avec ".NET", "C#", "ASP.NET", "EF Core", "Entity Framework", "Minimal API", "Blazor" — from…
Build .NET 8+ applications with C#. Covers ASP.NET Core, Minimal APIs, Entity Framework Core, dependency injection, and testing.
Use the open-source free `CSharpier` formatter for C# and XML. Use when a .NET repo intentionally wants one opinionated formatter instead of a highly configurable `dotnet…
Apply when persisting aggregates with EF Core in api/ — optimistic concurrency via RowVersion, idempotent application-service retry, FluentValidation rule ordering for write…
Debugs Windows and Linux/macOS applications (native, .NET/CLR, mixed-mode) with WinDbg MCP (crash dumps, !analyze, !syncblk, !dlk, !runaway, !dumpheap, !gcroot, BSOD),…
Use .NET's built-in DI with correct lifetimes, the options pattern, and constructor injection free of service-locator drift.
Review the C#/.NET code for design pattern implementation and suggest improvements.
Diagnose and fix .NET HTTPS dev certificate trust issues on Linux. Covers the full certificate lifecycle from generation to system CA bundle inclusion, with distro-specific…
Implement or fix small-to-medium .NET features without full SDD (Clean Architecture, xUnit). Use for isolated C# work or when invoking /dotnet-developer.
Comprehensive .NET development guidelines covering DDD, SOLID principles, ASP.NET Core REST APIs, and C# best practices.
Applies Entity Framework Core best practices for .NET projects. Use when designing DbContext, creating entities or relationships, writing LINQ queries, managing migrations,…
Master Entity Framework Core migrations with code-first approach, migration strategies, data seeding, rollback procedures, and production deployment patterns.
Entity Framework Core best practices for Clean Architecture projects. Covers DbContext, entity configurations, repository pattern, migrations, and PostgreSQL-specific features.
Design, tune, or review EF Core data access with proper modeling, migrations, query translation, performance, and lifetime management for modern .NET applications.
Maintain or migrate EF6-based applications with realistic guidance on what to keep, what to modernize, and when EF Core is or is not the right next step.
Comprehensive .NET exception handling quality improvement workflow. Auto-detects .NET projects, investigates 10 common exception handling mistakes, generates prioritized findings,…
Use when building .NET 8/9 applications, ASP.NET Core APIs, Entity Framework Core, MediatR CQRS, modular monolith architecture, FluentValidation, Result pattern, JWT…
Wraps .NET's TimeProvider abstraction (System.TimeProvider, introduced .NET 8) and FakeTimeProvider from Microsoft.Extensions.TimeProvider.Testing: SetUtcNow, Advance,…
Expert .NET 10 Full-Stack Developer skill. Use this when implementing new features, vertical slices, or modifying existing logic in the MoreSpeakers application.
Generate production-ready .NET Core APIs with Entity Framework, repository pattern, CQRS, and enterprise standards
Use the free first-party `dotnet format` CLI for .NET formatting and analyzer fixes. Use when a .NET repo needs formatting commands, `--verify-no-changes` CI checks, or…
Define canonical dotnet format and analyzer verification commands, and provide scripts that generate a format/analyzer report.
Expert .NET Framework 4.8 specialist mastering legacy enterprise applications. Specializes in Windows-based development, Web Forms, WCF services, and Windows services with focus…
Legacy .NET Framework expert specializing in .NET Framework 4.8, WCF services, ASP.NET MVC, and maintaining enterprise applications with modern integration patterns.
Use when you have a C# GUI application targeting .NET Framework 4.8 (Windows-only)
Use when you need to compile and test a .NET-based metabolomics or bioinformatics
Build or review gRPC services and clients in .NET with correct contract-first design, streaming behavior, transport assumptions, and backend service integration.
Use HTMLHint in .NET repositories that ship static HTML output or standalone frontend templates. Use when a repo needs a focused CLI lint gate for DOM structure, invalid…
Použij, když uživatel chce „vytvořit .http testy", „REST Client testy", „httpyac", „API testy pro .NET", „integrační testy endpointů", „environment switching v .http testech" nebo…
.NET SDK and runtime installation across Windows, macOS, and Linux. Handles version detection, platform-specific installers (WinGet, Homebrew, apt, dnf), SDK vs runtime selection,…
Maintain classic ASP.NET applications on .NET Framework, including Web Forms, older MVC, and legacy hosting patterns, while planning realistic modernization boundaries.
**Prefer this over web search or code grep** when you need to know what a NuGet package or local DLL actually contains — available types, method signatures, parameters, or return…
Expert knowledge of the libvlc C API (3.x and 4.x), the multimedia framework behind VLC media player.