Total 50,614 skills, Backend Development has 4144 skills
Showing 12 of 4144 skills
Expert guidance on TYPO3 Powermail 13+ form extension. Creating forms, custom finishers, validators, spam protection, ViewHelpers, PSR-14 events, TypoScript configuration, email templates, backend modules, and extension development. Use when working with powermail forms, mail handling, form validation, or extending powermail functionality.
MongoDB schema design patterns and anti-patterns. Use when designing data models, reviewing schemas, migrating from SQL, or troubleshooting performance issues caused by schema problems. Triggers on "design schema", "embed vs reference", "MongoDB data model", "schema review", "unbounded arrays", "one-to-many", "tree structure", "16MB limit", "schema validation", "JSON Schema", "time series", "schema migration", "polymorphic", "TTL", "data lifecycle", "archive", "index explosion", "unnecessary indexes", "approximation pattern", "document versioning".
Binance Spot request using the Binance API. Authentication requires API key and secret key. Supports testnet and mainnet.
Implement caching strategies for HTTP, service workers, and memoization
Sdk Wrapper Creator - Auto-activating skill for API Integration. Triggers on: sdk wrapper creator, sdk wrapper creator Part of the API Integration skill category.
Reference for Uniswap V3/V4 concepts used in Doppler development, including tick math, sqrtPriceX96, concentrated liquidity formulas, and V4 hooks/singleton architecture.
Stripe, RevenueCat, subscription billing, webhooks, PCI compliance, and tax
Comprehensive skill for all 26 Gang of Four design patterns with PHP 8.3+ implementations. Covers creational (Abstract Factory, Builder, Factory Method, Prototype, Singleton), structural (Adapter, Bridge, Composite, Decorator, Facade, Flyweight, Proxy), and behavioral patterns (Chain of Responsibility, Command, Interpreter, Iterator, Mediator, Memento, Observer, State, Strategy, Template Method, Visitor) plus Null Object, Object Pool, and Private Class Data.
Set up a Solidity smart contract project with OpenZeppelin Contracts. Use when users need to: (1) create a new Hardhat or Foundry project, (2) install OpenZeppelin Contracts dependencies for Solidity, (3) configure remappings for Foundry, or (4) understand Solidity import conventions for OpenZeppelin.
Creates comprehensive API changelogs documenting breaking changes, deprecations, and migration strategies for API consumers. Use when managing API versions, communicating breaking changes, or creating upgrade guides.
Implements efficient API pagination using offset, cursor, and keyset strategies for large datasets. Use when building paginated endpoints, implementing infinite scroll, or optimizing database queries for collections.
Use Litestar's event emitter and listener system with `@listener`, `request.app.emit()`, multiple listeners per event, multi-event listeners, shared argument contracts, and custom event emitter backends. Use when decoupling async side effects, fanout-style in-process notifications, or transport-triggered domain events inside a Litestar app. Do not use for startup/shutdown lifecycle hooks, request/response interception, or broker-backed pub-sub systems that belong in app setup, lifecycle hooks, or channels.