Total 44,228 skills, Backend Development has 3831 skills
Showing 12 of 3831 skills
Use when the user needs system design, architecture decision records, scalability analysis, trade-off evaluation, or non-functional requirements planning. Triggers: new system design, technology selection, scaling strategy, ADR creation, infrastructure topology, service boundary definition.
Use when the user needs API design, microservices architecture, event-driven systems, database integration, caching strategies, or backend observability. Triggers: REST/GraphQL API implementation, service architecture design, message queue setup, rate limiting, health checks, OpenTelemetry integration.
Builds Nango Functions in a checked-out Zero YAML TypeScript Nango project using local files, index.ts registration, nango dryrun, generated tests, and optional nango deploy. Use when creating or updating Nango actions or syncs locally.
Building WinForms on .NET 8+. High-DPI, dark mode (experimental), DI patterns, modernization tips.
Guide the design and implementation of order lifecycle management in trading systems. Use when building an order state machine for an OMS or EMS, implementing or debugging FIX protocol connectivity to exchanges, handling cancel/replace race conditions, defining pre-submission validation rules (buying power, position limits, restricted lists), selecting order types and time-in-force instructions, designing multi-leg or OCO or bracket orders, building CAT-compliant audit trails, troubleshooting order rejections or unexpected state transitions, hardening an OMS against edge cases, or implementing order persistence and recovery for failover. Also covers FIX message flows, ClOrdID chaining, and partial fill aggregation.
Upstash Workflow implementation guide. Use when creating async workflows with QStash, implementing fan-out patterns, or building 3-layer workflow architecture (process → paginate → execute).
TRPC router development guide. Use when creating or modifying TRPC routers (src/server/routers/**), adding procedures, or working with server-side API endpoints. Triggers on TRPC router creation, procedure implementation, or API endpoint tasks.
Use when designing API endpoints, defining request/response schemas, generating OpenAPI specifications, choosing between REST/GraphQL/tRPC, or establishing API conventions for a project
Use when building or maintaining Laravel applications — Eloquent ORM, Blade, Livewire, queues, Pest testing, middleware, service providers, migrations. Trigger conditions: Laravel project setup, Eloquent model design, Blade or Livewire component creation, queue/job implementation, Pest test writing, middleware configuration, migration authoring, route definition, Form Request validation, policy authorization, Sanctum/Passport authentication, Horizon queue monitoring.
Use when designing database schemas, creating migrations, modeling data relationships, optimizing database queries, adding indexes, or selecting between SQL and NoSQL storage
Use when writing modern PHP 8.x code — enums, fibers, readonly properties, PSR standards, Composer, static analysis, SOLID patterns. Trigger conditions: PHP code authoring, enum design, readonly DTO creation, PSR-4 autoloading setup, PHPStan or Psalm configuration, PHP CS Fixer or Pint setup, Composer dependency management, SOLID principle application, type safety improvements, custom exception hierarchies, interface-driven design.
Sitecore Marketplace SDK API reference. Use when the user asks about SDK methods, types, queries, mutations, subscriptions, or how to use any Sitecore Marketplace SDK API.