software-performance
Installation
SKILL.md
Performance Engineering
Use this skill for systematic performance work across APIs, web apps, services, and release gates. It owns profiling, load and stress testing, performance budgets, and regression detection. It does not replace SQL tuning, observability setup, or system-architecture design.
Quick Reference
| Task | Use |
|---|---|
| Profiling hot paths | flamegraph-first profiling with the right language toolchain |
| Load and stress testing | k6 by default; alternate tools only when the team has a clear reason |
| Frontend or backend budgets | CI thresholds plus representative benchmarks |
| Database-related slowdown | query and pool investigation first, then broader system review |
| Continuous regression detection | benchmark suites plus statistical comparison |
| CWV thresholds, k6 patterns, Lighthouse CI budget JSON, profiling tools | references/perf-budgets-and-cwv.md |
| assert CWV budgets from Lighthouse JSON | scripts/check_perf_budget.py |