Total 56,656 skills, Backend Development has 4474 skills
Showing 12 of 4474 skills
Query PostgreSQL with Prisma 7 efficiently, using Prisma Client for mutations and selectively using raw SQL for complex/performant reads (SELECT/COUNT) when appropriate.
Configuration for Virtual Hosts, .htaccess, and PHP-FPM in LAMP stacks.
Create custom job steps for B2C Commerce batch processing. Use when writing scheduled tasks, data sync jobs, import/export scripts, or any server-side batch processing code. Covers steptypes.json, chunk-oriented processing, and task-oriented execution. For running existing jobs, use b2c-job instead.
Rust cross-compilation skill. Use when building Rust binaries for a different target architecture or OS, using cross or cargo-zigbuild for hermetic cross-compilation, configuring .cargo/config.toml for cross targets, or targeting embedded and bare-metal systems. Activates on queries about Rust cross-compilation, rustup targets, cross tool, cargo-zigbuild, aarch64-unknown-linux-gnu, thumbv7m-none-eabi, or building for embedded.
Effect v4 (beta) development and v3 → v4 migration guidance. Use when building new Effect v4 code or upgrading from v3, including API renames, behavior changes, before/after examples, and v4-specific patterns for services, layers, generators, yieldable, error handling, and schema codecs.
Optimize Fireflies.ai API performance with caching, batching, and connection pooling. Use when experiencing slow API responses, implementing caching strategies, or optimizing request throughput for Fireflies.ai integrations. Trigger with phrases like "fireflies performance", "optimize fireflies", "fireflies latency", "fireflies caching", "fireflies slow", "fireflies batch".
Migrates desktop apps. WPF/WinForms to .NET 8+, WPF to WinUI or Uno, UWP to WinUI.
Builds .NET 10 file-based C# apps. Directives, CLI commands, csproj migration.
Hexagonal architecture layering for Java services with strict boundaries. Trigger: When structuring Java apps by Domain/Application/Infrastructure, or refactoring toward clean architecture.
Run browser encrypted JS in Node.js (environment patching). env_core.js provides function disguise/prototype chain/Proxy engine, Claude writes stubs on demand in run.js according to the diagnosis report. TRIGGER when: user says "environment patching", "module extraction", "run in Node", "webpack module extraction", "environment simulation", "run JS in Node", or needs to run independently without browser after finding the encryption entry. DO NOT TRIGGER when: only debugging in browser, doing AST deobfuscation, or writing ordinary Node.js code.
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.
Hardware performance counter skill for low-level CPU analysis. Use when collecting PMU events with perf stat, using the PAPI library, measuring cache miss rates and branch misprediction ratios, computing IPC, or correlating PMU events to source lines. Activates on queries about hardware counters, PMU events, perf stat -e, PAPI, cache miss rate, branch misprediction, IPC measurement, or CPU performance events.