About
This skill provides a comprehensive framework for performance engineering, emphasizing a strict 'measure-first' methodology to avoid premature optimization. It guides developers through the entire lifecycle of performance improvement: establishing baselines, profiling with tools like Flamegraphs and Criterion, analyzing root causes, and validating gains with statistical significance. With specific patterns for TypeScript, Bun, and Rust, it helps identify memory leaks, reduce tail latency (P95/P99), optimize database queries, and improve overall throughput while documenting critical trade-offs.