Individual skill
performance-optimization
Use when code is slow, resource-heavy, or needs optimization — before making any changes, after profiling reveals bottlenecks, or when designing performance-sensitive systems
skills/performance-optimization/SKILL.md
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# Performance Optimization
## Overview
Measure first, optimize second. Never optimize without data.
The bottleneck is almost never where you think it is.
## When to Use
- Code is measurably slow or resource-heavy
- Profiling has revealed specific bottlenecks
- Designing a system with known performance requirements
- Reviewing code for performance before production
