Total 44,185 skills, Backend Development has 3828 skills
Showing 12 of 3828 skills
SESSION_ORCHESTRATION.mdに基づくセッション状態遷移管理。内部用。Do NOT load for: user session management, login state, app state handling.
Design scalable distributed systems using structured approaches for load balancing, caching, database scaling, and message queues. Use when the user mentions "system design", "scale this", "high availability", "rate limiter", or "design a URL shortener". Covers common system designs and back-of-the-envelope estimation. For data fundamentals, see ddia-systems. For resilience, see release-it.
Guide for building SumUp payment integrations that cover both terminal (card-present) and online (card-not-present) checkout flows using SumUp SDKs and APIs. Use when implementing or debugging SumUp checkout creation, payment processing, reader pairing, Card Widget integrations, Cloud API reader checkouts, or authorization setup with API keys/OAuth and Affiliate Keys.
Foundational EVM integration for AAVE-related scripts using viem. Use when user asks to read balances, read/write contracts, send transactions, or set up typed viem clients for Ethereum and Arbitrum.
Express.js framework patterns including routing, middleware, request/response handling, and Express-specific APIs. Use when working with Express routes, middleware, or Express applications.
Metaplex development on Solana — NFTs, tokens, compressed NFTs, candy machines, token launches. Use when working with Token Metadata, Core, Bubblegum, Candy Machine, Genesis, or the mplx CLI.
Expert Go backend code reviewer specializing in microservices, GORM/DAL patterns, dependency injection, and resource management. Focuses on logic correctness, goroutine leak detection, and Go-specific best practices for production-grade services.
Create FilamentPHP v4 actions with modals, confirmation, forms, and bulk operations
Create cache services and transformation utilities for syncable entities in Twenty. Use when implementing entity-to-flat conversions, input DTO transpilation to universal flat entities, or cache recomputation for syncable entities.
Use for privacy preserving applications and ZK Solana programs. Prevents double spending using rent-free PDAs.
Fix PHPStan static analysis errors by adding type annotations and PHPDocs. Use when encountering PHPStan errors, type mismatches, missing type hints, or static analysis failures. Never ignores errors without user approval.
Rapid Symfony admin panel development with EasyAdminBundle. Capabilities: CRUD generation, dashboard creation, entity management, form customization, menu configuration, field configuration, action customization, filters, permissions, batch actions, custom themes, file uploads, image handling, associations, submenus, custom queries, event listeners. Use for: admin panels, backend interfaces, content management, data administration, CRUD operations, user management, product catalogs, blog administration, e-commerce backends. Triggers: easyadmin, symfony admin, crud, admin panel, dashboard, backend, entity crud, admin interface, symfony backend, easyadmin, easyadmin bundle, admin generator, backend panel