Total 55,943 skills, Backend Development has 4411 skills
Showing 12 of 4411 skills
End-to-end Radius Network development playbook. Stablecoin-native EVM with sub-second finality and 2.8M+ TPS. Uses plain viem (defineChain, createPublicClient, createWalletClient) for all TypeScript integration. wagmi for React wallet integration. Foundry for smart contract development and testing. Covers micropayment patterns (pay-per-visit content, real-time API metering, streaming payments), x402 protocol integration, stablecoin-native fees via Turnstile, ERC-20 operations, event watching, production gotchas, and EVM compatibility differences from Ethereum.
Project Lombok for reducing Java boilerplate. Covers annotations for getters, setters, constructors, builders, logging, and more. Based on production patterns from castellino and gestionale-presenze projects. USE WHEN: user mentions "lombok", "@Data", "@Builder", "@Slf4j", asks about "boilerplate reduction", "getters/setters", "@RequiredArgsConstructor", "@Value" DO NOT USE FOR: Java language features - use `java` skill instead DO NOT USE FOR: MapStruct integration - use `mapstruct` skill DO NOT USE FOR: Spring annotations - use `backend-spring-boot` skill
Python performance profiling with cProfile, tracemalloc, and line_profiler. Use for identifying bottlenecks and memory issues. USE WHEN: user mentions "Python profiling", "cProfile", "memory profiling", asks about "Python performance", "tracemalloc", "line_profiler", "py-spy", "Python optimization", "Python memory leak" DO NOT USE FOR: Java/Node.js profiling - use respective skills instead
DevExpress XAF (eXpressApp Framework) master index. Use this skill first when working with any XAF topic to find the right sub-skill. Covers Blazor and WinForms, EF Core and XPO, versions v24.2 and v25.1. Sub-skills: xaf-xpo-models, xaf-ef-models, xaf-controllers, xaf-editors, xaf-custom-editors, xaf-nonpersistent, xaf-security, xaf-multi-tenant, xaf-web-api, xaf-validation, xaf-reports, xaf-dashboards, xaf-office, xaf-blazor-ui, xaf-winforms-ui, xaf-conditional-appearance, xaf-deployment, xaf-memory-leaks.
Author or modify Azure TypeSpec API specifications. USE FOR: Any task that creates, modifies, or troubleshoots .tsp files or TypeSpec API specifications — including but not limited to API versioning evolution(add new preview version, add new stable version), ARM resource type(tracked, proxy, extension, child resources) or data-plane resource definitions, resource operations (CRUD, PATCH, custom actions, paging, async/Long Running Operations), models, enums, unions, properties, decorators, constraints, parameters, and swagger-to-TypeSpec conversion. DO NOT USE FOR: SDK generation from TypeSpec, releasing SDK packages, single MCP tool calls that do not require multi-step workflows. TOOLS/COMMANDS: azsdk_typespec_generate_authoring_plan, azsdk_run_typespec_validation
This skill should be used when the user asks to "connect to MySQL with PyMySQL", "use PyMySQL in Python", "query a MySQL database with Python", "set up PyMySQL", or needs guidance on PyMySQL best practices, transactions, parameterized queries, or cursor types.
Use when declaring or initializing Go variables, constants, structs, or maps — including var vs :=, reducing scope with if-init, formatting composite literals, designing iota enums, and using any instead of interface{}. Also use when writing a new struct or const block, even if the user doesn't ask about declaration style. Does not cover naming conventions (see go-naming).
Implement Token-2022 (Token Extensions) features - transfer fees, permanent delegate, metadata pointer, confidential transfers, and more. Use when creating advanced tokens or analyzing Token-2022 tokens.
Authentication patterns for The Boring JavaScript Stack — session-based auth with password, magic links, passkeys (WebAuthn), two-factor authentication (TOTP/email/backup codes), password reset, and OAuth. Use this skill when implementing or modifying any authentication flow in a Sails.js application.
Build ASP.NET Core Web APIs with .NET 10 (C# 14.0). Supports project scaffolding, CRUD operations, Entity Framework integration, dependency injection, testing with xUnit, Docker containerization, and following 2025 best practices. Use when creating REST APIs, microservices, backend services, implementing CRUD operations, setting up Entity Framework, adding authentication/authorization, or containerizing .NET applications. Triggers on .NET, ASP.NET Core, C#, Web API, REST API, microservices, dotnet, csharp development tasks.
Concurrency and async programming expert. Handles Send, Sync, threads, async/await, tokio, channels, Mutex, RwLock, deadlock prevention, and race condition debugging.
Update the graft (feature flag) inventory when flags are added or removed. Use when adding new grafts via migrations, after CI flags inventory mismatches, or periodically to ensure docs match production D1.