Individual skill
performance-profiler
Use for a slow endpoint, memory leak, CPU spike, large bundle or performance budget in Node.js, Python or Go, before optimizing. Measures before and after with performance_profiler.py, flamegraphs and k6 load tests.
engineering/skills/performance-profiler/SKILL.md
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# Performance Profiler
**Tier:** POWERFUL
**Category:** Engineering
**Domain:** Performance Engineering
---
## Overview
Systematic performance profiling for Node.js, Python, and Go applications. Identifies CPU, memory, and I/O bottlenecks; generates flamegraphs; analyzes bundle sizes; optimizes database queries; detects memory leaks; and runs load tests with k6 and Artillery. Always measures before and after.
## Core Capabilities
