Total 31,071 skills, Backend Development has 3052 skills
Showing 12 of 3052 skills
Designs REST and GraphQL APIs including endpoints, error handling, versioning, and documentation. Use when creating new APIs, designing endpoints, reviewing API contracts, or when asked about REST, GraphQL, or API patterns.
Rust ecosystem expert covering crate selection, library recommendations, framework comparisons, async runtime choices (tokio, async-std), and common tools.
Expert in video processing, streaming protocols (HLS/DASH/WebRTC), and FFmpeg automation. Specializes in building scalable video infrastructure.
Real-time blockchain event monitoring with webhooks. Use when user asks about setting up webhooks, real-time event streaming, monitoring wallet addresses, tracking token transfers in real-time, listening to all addresses on a chain, creating/updating/deleting streams, adding/removing addresses from streams, or receiving blockchain events as they happen. Supports all EVM chains. NOT for querying historical or current blockchain state - use moralis-data-api instead.
Use when implementing features, writing fullstack code, shipping UI + API + DB changes, or any hands-on engineering work in TypeScript, Python, React, Next.js, FastAPI, or SQL
Use when designing system architecture, choosing databases, structuring projects, selecting tech stacks, designing APIs, planning caching strategies, or organizing a codebase for scale
oRPC (v1.12+) typesafe API layer for TypeScript. Covers contract-first development, procedure definition, middleware, routers, context, error handling, Hono integration, TanStack Query, event iterators, plugins, file uploads, WebSocket adapter, and best practices. Use when building or modifying API procedures, data fetching hooks, server handlers, or real-time features. Triggers on tasks involving oRPC, typesafe APIs, RPC procedures, or server route handlers.
Help with AbacatePay payment integration in Next.js projects. Use when implementing PIX payments, managing subscriptions, handling webhooks, or debugging payment flows. Covers SDK usage, webhook verification, and billing management for Brazilian SaaS applications.
Go error handling patterns: wrapping with context, sentinel errors, custom error types, errors.Is/As chains, and HTTP error mapping. Use when implementing error returns, defining package-level errors, creating custom error types, wrapping errors with fmt.Errorf, or checking errors with errors.Is/As. Use for "error handling", "fmt.Errorf", "errors.Is", "errors.As", "sentinel error", "custom error", or "%w". Do NOT use for general Go development, debugging runtime panics, or logging strategy.
Condition-based polling and retry patterns: exponential backoff, health checks, rate limit recovery, circuit breakers. Use when replacing arbitrary sleeps with condition checks, implementing retry logic, waiting for service availability, or handling API rate limits. Use for "wait for", "poll until", "retry with backoff", "health check", or "rate limit". Do NOT use for async event-driven architectures, distributed locking, or real-time guarantees.
SAP Converged Cloud Go coding conventions extracted from sapcc/keppel and sapcc/go-bits PR reviews. Enforces architecture patterns, library usage rules, error handling conventions, testing patterns, and anti-over-engineering principles. Use when working in sapcc/* repos, when code imports github.com/sapcc/go-bits, or when targeting SAP CC code review standards. Do NOT use for general Go projects without sapcc dependencies.
Go concurrency patterns and primitives: goroutines, channels, sync primitives, worker pools, rate limiting, context propagation. Use when writing concurrent Go code, implementing worker pools, fan-out/fan-in pipelines, rate limiters, or debugging race conditions and goroutine leaks. Triggers: goroutine, channel, sync.Mutex, sync.WaitGroup, worker pool, fan-out, fan-in, rate limit, concurrent, parallel, context.Context, race condition, deadlock. Do NOT use for sequential Go code, general Go syntax, error handling patterns, or HTTP routing without concurrency concerns.