Total 52,033 skills, Backend Development has 4220 skills
Showing 12 of 4220 skills
Make cross-contract calls in MultiversX smart contracts. Use when calling another contract, handling callbacks, managing back-transfers, using typed proxies, or sending tokens via the Tx builder API (.tx().to()).
Primary Apex authoring skill for class generation, refactoring, and review. ALWAYS ACTIVATE when the user mentions Apex, .cls, triggers, or asks to create/refactor a class (service, selector, domain, batch, queueable, schedulable, invocable, DTO, utility, interface, abstract, exception, REST resource). Use this skill for requests involving SObject CRUD, mapping collections, fetching related records, scheduled jobs, batch jobs, trigger design, @AuraEnabled controllers, @RestResource endpoints, custom REST APIs, or code review of existing Apex.
Scaffold a complete credits/token metering system for any app — database schema, backend middleware, payment webhooks, frontend state, and UI components. Goes from zero to "users can buy and spend credits" in one session.
Build and debug Enable Banking API integrations for account information (AIS), payment initiation (PIS), ASPSP discovery, user sessions, JWT authentication with RSA certificates, sandbox setup, and TypeScript/Node clients. Use when Codex needs to implement Enable Banking request flows, generate or validate bearer JWTs, model Enable Banking schemas, handle PSU redirect callbacks, fetch accounts/balances/transactions, create payments, or troubleshoot Enable Banking API errors.
Create custom block types for Hytale with textures, physics, states, farming, and interactions. Use when asked to "add a custom block", "create a new block type", "make blocks farmable", "add block interactions", or "configure block physics".
Use when building Go applications requiring concurrent programming, microservices architecture, or high-performance systems. Invoke for goroutines, channels, Go generics, gRPC integration.
Build production Spring Boot applications - REST APIs, Security, Data, Actuator
Use when building Laravel 10+ applications requiring Eloquent ORM, API resources, or queue systems. Invoke for Laravel models, Livewire components, Sanctum authentication, Horizon queues.
Auto-activate for sqlspec, SQLSpec, SQLFileLoader, drivers, query builders, named SQL, filters, pagination, Arrow, framework extensions, ADK stores, data dictionary, or observers. Not for ORM repositories.
Generate and validate Apex test classes with TestDataFactory patterns, bulk testing (251+ records), mocking strategies, assertion best practices, and disciplined test-fix loops. Use this skill when creating new Apex test classes, improving test coverage, debugging and fixing failing Apex tests, running test execution and coverage analysis, or implementing testing patterns for triggers, services, controllers, batch jobs, queueables, and integrations. Triggers on *Test.cls, *_Test.cls files, sf apex run test workflows, coverage reports, test-fix loops. Do NOT trigger for production Apex code (use platform-apex-generate) or Jest/LWC tests.
RivetKit backend and Rivet Actor runtime guidance. Use for building, modifying, debugging, or testing Rivet Actors, registries, serverless/runner modes, deployment, or actor-based workflows.
Azure Tables SDK for Python (Storage and Cosmos DB). Use for NoSQL key-value storage, entity CRUD, and batch operations. Triggers: "table storage", "TableServiceClient", "TableClient", "entities", "PartitionKey", "RowKey".