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Found 82 Skills
Guidelines for ASP.NET Core web development covering API design, authentication, caching, and best practices
Build, review, refactor, or architect ASP.NET Core web applications using current official guidance for .NET web development. Use when working on Blazor Web Apps, Razor Pages, MVC, Minimal APIs, controller-based Web APIs, SignalR, gRPC, middleware, dependency injection, configuration, authentication, authorization, testing, performance, deployment, or ASP.NET Core upgrades.
ASP.NET Core cross-platform .NET framework with Blazor support. Use for C# web apps.
Migrate a .NET 9 project or solution to .NET 10 and resolve all breaking changes. USE FOR: upgrading TargetFramework from net9.0 to net10.0, fixing build errors after updating the .NET 10 SDK, resolving source and behavioral changes in .NET 10 / C# 14 / ASP.NET Core 10 / EF Core 10, updating Dockerfiles for Debian-to-Ubuntu base images, resolving obsoletion warnings (SYSLIB0058-SYSLIB0062), adapting to SDK/NuGet changes (NU1510, PrunePackageReference), migrating System.Linq.Async to built-in AsyncEnumerable, fixing OpenApi v2 API changes, cryptography renames, and C# 14 compiler changes (field keyword, extension keyword, span overloads). DO NOT USE FOR: .NET Framework migrations, upgrading from .NET 8 or earlier (use migrate-dotnet8-to-dotnet9 first), greenfield .NET 10 projects, or cosmetic modernization. LOADS REFERENCES: csharp-compiler, core-libraries, sdk-msbuild (always); aspnet-core, efcore, cryptography, extensions-hosting, serialization-networking, winforms-wpf, containers-interop (selective).
Complete guide to implementing the Syncfusion Inputs component in ASP.NET Core applications. Use this when working with file uploads, asynchronous processing, validation, drag-and-drop support, or enterprise-grade file handling for professional web forms.
Guidelines for .NET backend development with C#, ASP.NET Core, and Entity Framework Core
Generate or scaffold ASP.NET Core code — Razor Pages, Blazor components, MVC controllers, views, and Minimal API endpoints — without using ASP.NET Core CLI scaffolding/code-generation tools. Use when (1) adding CRUD pages, views, or API endpoints backed by Entity Framework (EF Core) and a database, (2) generating code to create, read, update, and delete data using a DbContext, (3) scaffolding UI components that match the project's existing CSS framework and coding patterns, or (4) creating data-driven forms, tables, and navigation for a model class. Do not use for non-ASP.NET projects or when CLI-based scaffolding is preferred.
Build ASP.NET Core 8+ backend services with EF Core, auth, background jobs, and production API patterns.
Guides conversion of a pre-.NET 8 Blazor Server app into a .NET 8+ Blazor Web App. USE FOR: migrating apps that use AddServerSideBlazor and MapBlazorHub to the AddRazorComponents/MapRazorComponents model, converting _Host.cshtml to an App.razor root component, replacing blazor.server.js with blazor.web.js, migrating CascadingAuthenticationState to a service, adopting new Blazor Web App features like enhanced navigation and streaming rendering. DO NOT USE FOR: apps that are already Blazor Web Apps (already use AddRazorComponents and MapRazorComponents), Blazor WebAssembly or hosted Blazor WebAssembly apps (different migration path), apps that should stay on the Blazor Server hosting model without converting, or apps still targeting .NET Framework.
Implement Syncfusion ASP.NET Core Scheduler component for scheduling appointments, events, and resource management. Use this when creating calendar scheduling solutions with appointment management, resource scheduling, multiple calendar views (day, week, month, timeline), recurring events, and CRUD operations. This skill covers data binding, timezone support, event templates, and timescale configuration.
Implement the Syncfusion ASP.NET Core Image Editor (EJ2) component. Use this when adding image editing to an ASP.NET Core application, including cropping, rotating, annotations, fine-tuning (brightness, contrast, blur), and filter application. Covers opening/saving images, toolbar customization, redaction, resizing, and image editor event handling with ejs-imageeditor.
**CONTENT SECURITY POLICY (CSP) GUIDE** — Assist with configuring Syncfusion ASP.NET Core EJ2 components to work with strict Content Security Policy (CSP) headers. Use when: implementing CSP headers, generating and applying nonces to inline scripts/styles, configuring external font allowlists, or troubleshooting CSP violations.