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Found 1,766 Skills
Write modern PHP with generators, SPL, and PHP 8+ features. Use for PHP development or optimization.
Integration patterns for Mapbox Maps SDK on iOS with Swift, SwiftUI, UIKit, lifecycle management, and mobile optimization best practices.
WordPress performance optimization - Core Web Vitals, image/video compression, caching, asset optimization, and speed testing. Use when optimizing site speed or diagnosing performance issues.
Use when serving uploaded files to users. Covers API-proxied file serving, direct storage URLs (S3/R2/Cloudinary), CDN configuration, public file URLs, caching headers, image optimization with Cloudinary, and serving files in frontend applications.
Analyzes repositories for AI agent development efficiency. Scores 8 aspects (documentation, architecture, testing, type safety, agent instructions, file structure, context optimization, security) with ASCII dashboards. Use when evaluating AI-readiness, preparing codebases for Claude Code, or improving repository structure for AI-assisted development.
Complete React Native and Expo optimization guide combining Callstack profiling with Vercel code patterns. Covers FPS, TTI, bundle size, memory, lists, animations, state, UI, and React Compiler. Use for any React Native performance, debugging, or best practices task.
Architect and co-design futureproof persistence systems built on open data principles. Use when designing data layers, choosing storage formats, structuring knowledge bases, building file-system-as-database architectures, or evaluating existing systems for portability and longevity. Use when user says "design my data model", "how should I store this", "is my data portable", "audit my persistence layer", "plan a migration", or asks about file-based databases, Markdown schemas, or Obsidian-compatible data formats. Do NOT use for general coding tasks, database query optimization, or SQL schema design.
Review UI code against Rauno Freiberg's interface guidelines. Use when checking interactivity, typography, motion, touch, optimizations, accessibility, and design details.
Write idiomatic Ruby code with metaprogramming, Rails patterns, and performance optimization. Specializes in Ruby on Rails, gem development, and testing frameworks. Use PROACTIVELY for Ruby refactoring, optimization, or complex Ruby features.
Optimizes Python library performance through profiling (cProfile, PyInstrument), memory analysis (memray, tracemalloc), benchmarking (pytest-benchmark), and optimization strategies. Use when analyzing performance bottlenecks, finding memory leaks, or setting up performance regression testing.
Frontend architecture expert. Use when planning component architecture, state management strategies, performance optimization, or technology selection decisions.
Systematic performance analysis and optimization. Use when things are slow, need optimization, or preparing for scale.