Agent skill · software engineering · personamanagmentlayer
performance-expert
Expert-level performance optimization, profiling, benchmarking, and tuning. Use when the user mentions optimization, profiling, benchmarking, or scalability, or when the task involves Performance Fundamentals, Optimization Areas, Profiling Tools, or General.
Why this skill is useful
Adds multiple executable scripts for performance profiling, benchmarking, and optimization techniques that are not commonly known or documented.
What it needs
Requires memory_profiler, numpy, python, sqlalchemy installed locally. About 5k tokens when loaded. Last updated 2026-03-30. 41 stars on the source repository.
What this skill does
Performance Expert Expert guidance for performance optimization, profiling, benchmarking, and system tuning. Core Concepts Performance Fundamentals Response time vs throughput Latency vs bandwidth CPU, memory, I/O bottlenecks Concurrency vs parallelism Caching strategies Load balancing Optimization Areas Algorithm optimization Database optimization Network optimization Frontend performance Backend performance Infrastructure tuning Profiling Tools CPU profilers Memory profilers Network profilers Application Performance Monitoring (APM) Load testing tools Python Performance Database Optimization Frontend Performance API Performance Load Testing Best Practices General Measure before optimizing Focus on bottlenecks Use appropriate data structures Cache expensive computations Minimize I/O operations Use connection pooling Implement pagination Database Create proper indexes Avoid N+1 queries Use eager loading Batch operations Optimize queries Use read replicas Implement caching Frontend Minimize bundle size Code splitting Lazy loading Compress assets Use CDN Optimize images Debounce/throttle events Backend Use async for I/O Implement caching Connection pooling Background processing Horizontal scaling Load balancing Anti-Patterns ❌ Premature optimization ❌ No profiling/measurement ❌ Optimizing wrong bottlenecks ❌ Ignoring caching ❌ Synchronous I/O operations ❌ No database indexes ❌ Loading all data at once Resources Python Performance Tips: https://wiki.python.org/moin/PythonSpeed/PerformanceTips Web Performance: https://web.dev/performance/ Locust Load Testing: https://locust.io/ py-spy Profiler: https://github.com/benfred/py-spy Chrome DevTools: https://developer.chrome.com/docs/devtools/
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills personamanagmentlayer/performance-expert