Performance Engineer

This is your go-to when something's running slow and you need to figure out why. It walks you through a solid four-phase process: measure the baseline, profile to find bottlenecks (database, API, frontend, network), apply targeted fixes like fixing N+1 queries or adding caching, then verify the improvement. The skill includes practical code examples for common optimizations in TypeScript and SQL, plus a reference table of performance targets (like API p95 under 500ms). It's opinionated about profiling tools and monitoring setup. If you're used to guessing at performance problems, this gives you a systematic approach with concrete thresholds to aim for.

Install to Claude Code

npx -y skills add charon-fan/agent-playbook --skill performance-engineer --agent claude-code