Total 50,528 skills, Backend Development has 4135 skills
Showing 12 of 4135 skills
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.
PostHog feature flags for Rust applications
PostHog integration for server-side Node.js applications using posthog-node
Use when writing server-side code with Supabase — Edge Functions, Hono apps, webhook handlers, or any backend that needs Supabase auth and client creation. Trigger whenever the user imports from `@supabase/server`, mentions `supabase/server`, Supabase Edge Functions, or needs server-side auth (JWT verification, API key validation, CORS handling) with Supabase. Also trigger when you see legacy patterns in existing code — `Deno.serve`, `createClient(Deno.env.get('SUPABASE_URL'))`, imports from `esm.sh/@supabase`, `deno.land/std` serve, or usage of `SUPABASE_ANON_KEY` / `SUPABASE_SERVICE_ROLE_KEY` — these indicate code that should be migrated to this package.
Set up database migrations for Elixir releases. Use when asked to configure release migrations, add migrate command to releases, or set up Ecto for production deployment without Mix.