Total 50,529 skills, Backend Development has 4135 skills
Showing 12 of 4135 skills
Use when designing APIs, Architecture, Security, or Scalability for Node, Python, Go, or Java backend systems.
Apply when implementing retry logic, rate limit handling, or resilience patterns in VTEX API integrations. Covers VTEX rate limit headers (X-RateLimit-Remaining, X-RateLimit-Reset, Retry-After), 429 status handling, exponential backoff with jitter, circuit breaker patterns, and request queuing. Use for any VTEX marketplace integration that must gracefully handle API throttling and maintain high availability.
Use when investigating a bug, error, or regression in a Ruby on Rails codebase. Creates a failing RSpec reproduction test, isolates the broken code path, and produces a minimal fix plan. Trigger words: debug, broken, error, regression, stack trace, failing test, RSpec, bug report, Rails app.
Use when the task involves general NextPay Partners API v2 integration work, especially setting up Basic Auth, choosing between merchant, account, funding-method, payment-intent, payout, webhook, or sandbox simulation endpoints, generating request or response examples, or explaining integration behavior from the OpenAPI spec.
Reference skill for Zoom WebSockets. Use after routing to a low-latency event workflow when persistent connections, faster event delivery, or security constraints make WebSockets preferable to webhooks.
Design and implement smart contracts as self-executing programmatic agreements on blockchain. Use this skill when the user needs to build automated on-chain logic, evaluate smart contract security, or design tokenized business rules — even if they say 'smart contract development', 'automated agreement', or 'on-chain logic'.
Apply Spatie's Laravel and PHP coding standards for any task that creates, edits, reviews, refactors, or formats Laravel/PHP code or Blade templates; use for controllers, Eloquent models, routes, config, validation, migrations, tests, and related files to align with Laravel conventions and PSR-12.
Search, order, and manage phone numbers by location, features, and coverage.
Advanced call control features including DTMF sending, SIPREC recording, noise suppression, client state, and supervisor controls. This skill provides JavaScript SDK examples.
Build voice applications using TeXML markup language (TwiML-compatible). Manage applications, calls, conferences, recordings, queues, and streams. This skill provides JavaScript SDK examples.
Integrate the TaxCloud v3 sales tax API into an ecommerce application. Use this skill whenever the user wants to calculate sales tax, record or convert orders for tax compliance, process refunds or returns, issue standalone tax credits, import orders from external systems (Square, POS, marketplaces, ERPs, QuickBooks), handle tax-exempt customers, classify products with TIC codes, generate a typed TypeScript client from the OpenAPI spec, troubleshoot zero-tax responses, or handle any aspect of US sales tax automation with TaxCloud. Trigger on mentions of TaxCloud, sales tax calculation, nexus, tax compliance, tax quotes, order upload, exemption certificates, TIC codes, or filing.
[Pragmatic DDD Architecture] Guide for creating PostgreSQL tables and defining relations using Drizzle ORM. Use when creating new schemas, managing PostgreSQL indexes, enums, mapping column names to camelCase for the domain, and explicitly exporting constraint names.