Total 50,476 skills, Backend Development has 4134 skills
Showing 12 of 4134 skills
Drizzle ORM for TypeScript. Covers schema definition, queries, and migrations. Use for type-safe SQL with minimal overhead. USE WHEN: user mentions "drizzle", "drizzle-orm", "drizzle-kit", "pgTable", "mysqlTable", asks about "lightweight orm", "sql-like orm", "drizzle schema", "drizzle migrations", "drizzle studio", "type-safe sql builder" DO NOT USE FOR: Prisma projects - use `prisma` skill; TypeORM - use `typeorm` skill; raw SQL - use `database-query` MCP; SQLAlchemy - use `sqlalchemy` skill; NoSQL databases - use `mongodb` skill
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.
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).
Paystack Verification API — KYC verification tools for resolving bank accounts, validating account ownership, and looking up card BIN information. Use this skill whenever verifying bank account details before transfers, confirming account holder names, validating customer identity for compliance, looking up card brand/type/bank from BIN, or implementing KYC flows. Also use when you see references to /bank/resolve, /bank/validate, /decision/bin endpoints, or need to match account numbers to names.
This skill should be used when the user asks to "write Go unit tests", "add tests to a Go package", "use the testing package", "write table-driven tests in Go", or needs guidance on Go test patterns, subtests, benchmarks, and test helpers.
Use when a codebase, product, workflow, runtime, or organization needs purpose-first whole-machine stewardship: understand what the whole system is trying to produce, then improve the machinery, tooling, feedback loops, operability, and developer flow that let it produce that output.
Use this skill when users ask how to build Syncfusion PivotView/pivot tables in ASP.NET Core apps. Trigger for server integration, data binding (API/DB/remote), OLAP, aggregation, drill-down, grouping, filtering, conditional formatting, exporting (Excel/PDF/CSV), or pivot charts in ASP.NET Core. Not for MVC/Blazor/JS.
Implement the Syncfusion ASP.NET Core DropDownTree component to bind hierarchical and self-referential data, enable checkbox selection, customize templates, implement keyboard accessibility, and handle tree interactions when building multi-level dropdown selections.
A simple toolbar component that organizes command buttons and responsive controls into a horizontal interface. Ideal for document editors, content management systems, and application headers to trigger actions and manage user workflows efficiently.
Implement Syncfusion Maps component for ASP.NET Core to visualize geographical data. Use this when working with maps, GeoJSON files, choropleth visualizations, or spatial data display. This skill covers map layers, markers, bubbles, map providers (Bing Maps, Azure Maps, OpenStreetMap), data binding, color mapping, and user interactions like zooming and panning. Suitable for world maps, country maps, regional visualizations, and location-based data presentation.
Implement Syncfusion ASP.NET Core Barcode components including BarcodeGenerator (1D codes like Code39, Code128, Codabar), QR Code Generator, and DataMatrix Generator. Use this when rendering barcodes, implementing QR codes with logo embedding, or generating DataMatrix codes. This skill covers barcode type selection, color and dimension customization, display text configuration, and export functionality (JPG, PNG, Base64).
Complete guide to implementing the Syncfusion MultiSelect component in ASP.NET Core applications with tag helpers, data binding, filtering, templates, checkboxes, and accessibility for building advanced dropdown selection forms.