Total 50,523 skills, Backend Development has 4135 skills
Showing 12 of 4135 skills
Modeling business domains. Aggregates, value objects, domain events, rich models, repositories.
Diagnoses .NET Framework CLR activation issues using CLR activation logs (CLRLoad logs) produced by mscoree.dll. Use when: the shim picks the wrong runtime, fails to load any runtime, shows unexpected .NET 3.5 Feature-on-Demand (FOD) dialogs, unexpectedly does NOT show FOD dialogs, loads both v2 and v4 into the same process causing failures, or any time someone is wondering "what is happening with .NET Framework activation?"
Helps find, inspect, and compare .NET project templates. Resolves natural-language project descriptions to ranked template matches with pre-filled parameters. USE FOR: finding the right dotnet new template for a task, comparing templates side by side, inspecting template parameters and constraints, understanding what a template produces before creating a project, resolving intent like "web API with auth" to concrete template + parameters. DO NOT USE FOR: actually creating projects (use template-instantiation), authoring custom templates (use template-authoring), MSBuild or build issues (use dotnet-msbuild plugin), NuGet package management unrelated to template packages.
Opinionated modern Java (21+) coding best practices, style guides, and anti-patterns. Curated by VirtusLab engineers. Covers code style, null safety, error handling, immutability, testing, concurrency, and tooling.
Agent skill for dev-backend-api - invoke with $agent-dev-backend-api
Work with orders using OrderMgr API in B2C Commerce. Use when creating orders, managing order status, handling order failures, or implementing checkout flows. Covers order lifecycle, status transitions, async order processing, and order queries.
Work with B2C Commerce site metadata XML for custom attributes and object types. Use when defining custom attributes on products/orders/customers, creating custom object types, or setting site preferences via XML import. Covers site import, site archive, system object extensions, system-objecttype-extensions.xml, custom-objecttype-definitions.xml, Business Manager attributes, BM configuration, and data model definitions.
Use when securing ASP.NET Core Web API endpoints with JWT Bearer token validation, scope/permission checks, or stateless auth - integrates Auth0.AspNetCore.Authentication.Api for REST APIs receiving access tokens from frontends or mobile apps. Also handles DPoP proof-of-possession token binding. Triggers on: AddAuth0ApiAuthentication, .NET Web API auth, JWT validation, UseAuthentication, UseAuthorization.
Implement or review SignalR hubs, streaming, reconnection, transport, and real-time delivery patterns in ASP.NET Core applications.
Apply when working with MasterData v2 entities, schemas, or MasterDataClient in VTEX IO apps, or when anyone designing or implementing a solution must scrutinize whether Master Data is the correct storage. The skill prompts hard questions: native Catalog or other VTEX stores, OMS, or an external database may be better; do not default to MD because it is convenient. Covers JSON Schema, CRUD, triggers, search and scroll, schema lifecycle, purchase-path avoidance, single source of truth, and BFF handoffs. Use for justified custom persistence while avoiding the 60-schema limit.
Builds production-ready REST API endpoints with validation, error handling, authentication, and documentation. Follows best practices for security and scalability.
RISC-V assembly skill for RV32/RV64 programming. Use when working with the RISC-V ISA, calling conventions (psABI), inline assembly with GCC/Clang, understanding extension naming (IMAFD), compressed instructions, or simulating RISC-V with QEMU and GDB remote debugging. Activates on queries about RISC-V assembly, RV32, RV64, RISC-V calling convention, RISC-V inline asm, RISC-V extensions, QEMU RISC-V, or RISC-V GDB.