This helps you figure out where your code is burning CPU cycles so you can fix the slowest parts first. You get guidance on using browser profilers like Chrome DevTools and Firefox's flame graphs, plus React's component profiler if that's your stack. The reference guides cover profiling tools, reading the output, and a systematic optimization process. It's most useful when you're dealing with high CPU usage or sluggish performance and need to move beyond guessing. The skill assumes you know your way around dev tools but need a structured approach to profiling and interpreting results rather than just poking around randomly.
npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill cpu-profiling