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performance-pro

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Systematic performance engineering: measure, profile, optimize hotspots, and set budgets. Use when diagnosing slowness or making systems faster.

skills/performance-pro/SKILL.md

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# Performance Pro

## Overview

Performance work is **measurement-driven**: profile first, optimize the hotspot, verify the gain —
never optimize from intuition. Most "slow code" is actually slow *architecture* (N+1 queries,
chatty APIs, missing indexes, serial execution of parallelizable work), and most micro-optimizations
are noise. This skill covers the systematic approach: defining targets, finding real bottlenecks,
fixing them at the right level, and preventing regression.

The through-line: measure → find the bottleneck → fix at the highest-leverage level → lock it in.

## When to use
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