Total 50,634 skills, Backend Development has 4146 skills
Showing 12 of 4146 skills
Store failed jobs for replay or manual inspection. Track failure patterns, enable manual intervention, and prevent data loss from processing errors.
Server-authoritative tick system for multiplayer games with lag compensation, anti-cheat validation, and deterministic physics. Prevents speed hacks and teleports while keeping gameplay fair for high-latency players.
Two-phase commit matchmaking that verifies both player connections before creating a match. Handles disconnections gracefully with automatic re-queue of healthy players.
Serve static files, directories, and embedded assets. Use for CSS, JavaScript, images, and downloadable content.
Comprehensive Ruby development skill covering language fundamentals, object-oriented design patterns, error handling strategies, performance optimization, modern Ruby 3.x features (pattern matching, ractors, typed Ruby), testing patterns, metaprogramming, concurrency, and Rails-specific best practices. Use when writing Ruby code, refactoring, implementing design patterns, handling exceptions, optimizing performance, writing tests, or applying Ruby idioms and conventions.
Comprehensive Ruby implementations of Gang of Four (GoF) design patterns. Use when implementing object-oriented design solutions, refactoring to reduce coupling, solving architecture problems, or when user mentions specific patterns (Factory, Singleton, Observer, Strategy, etc.) in Ruby context.
Build applications using the x402 protocol — Coinbase's open standard for HTTP-native stablecoin payments using the HTTP 402 status code. Use this skill when: - Creating APIs that require USDC payments per request (seller/server side) - Building clients or AI agents that pay for x402-protected resources (buyer/client side) - Implementing MCP servers with paid tools for Claude Desktop - Adding payment middleware to Express, Hono, or Next.js applications - Working with Base (EVM) or Solana (SVM) payment flows - Building machine-to-machine or agent-to-agent payment systems - Integrating micropayments, pay-per-use billing, or paid API access Triggers: x402, HTTP 402, payment required, USDC payments, micropayments, pay-per-use API, agentic payments, stablecoin payments, paid API endpoint, paywall middleware
Use when setting up a production database for Bknd. Covers SQLite file, LibSQL/Turso, Cloudflare D1, PostgreSQL, Neon, Supabase, and Xata configuration.
Use when populating a Bknd database with initial or test data. Covers the seed function in options, ctx.em.mutator() for insertOne/insertMany, conditional seeding, environment-based data, and common patterns for dev/test fixtures.
Python project scaffolding and development with modern tooling. Use when creating new Python projects, setting up virtual environments, configuring dependencies, or working with Flask web applications. Triggers on mentions of Python setup, uv, Flask, pytest, or project initialization.
Use when building advanced queries with complex filtering conditions in Bknd. Covers all filter operators ($eq, $ne, $gt, $lt, $like, $ilike, $in, $nin, $isnull, $between), logical operators ($or, $and), nested conditions, combining filters, and dynamic query building.
Implement property value presets in Umbraco backoffice using official docs