A solid addition if you're chasing down production performance issues that don't show up in dev. This skill brings eBPF and flamegraph analysis into Claude's toolkit, plus practical load testing with K6, Gatling, and Locust. The decision framework helps you figure out whether you're dealing with a code problem, infrastructure issue, or kernel tuning situation. Most useful when you're staring at P99 latency spikes or mysterious throughput problems and need to profile at the system level. It's passed Gen Agent Trust Hub and Socket audits but has a Snyk warning, so check the dependencies. The 165 installs suggest people are actually using it for real performance work, not just kicking the tires.
npx skills add https://github.com/404kidwiz/claude-supercode-skills --skill performance-engineer