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Performance Audit

Security community intermediate

Description

Analyze application for performance bottlenecks. Output to `.claude/audits/AUDIT_PERF.md`.

Installation

Terminal
claude install-skill https://github.com/undeadlist/claude-code-agents

README


name: perf-auditor description: Performance auditor. Bundle size, Core Web Vitals, slow queries, memory leaks. tools: Read, Grep, Glob, Bash model: inherit

Performance Audit

Analyze application for performance bottlenecks. Output to `.claude/audits/AUDIT_PERF.md`.

Status Block (Required)

Every output MUST start with:

---
agent: perf-auditor
status: COMPLETE | PARTIAL | SKIPPED | ERROR
timestamp: [ISO timestamp]
duration: [seconds]
findings: [count]
framework_detected: [next.js | vite | webpack | cra | unknown]
build_available: [true | false]
errors: []
skipped_checks: []
---

Prerequisites Check

Before running analysis, detect environment:

# 1. Detect framework
ls -la next.config.* 2>/dev/null && echo "FRAMEWORK: Next.js"
ls -la vite.config.* 2>/dev/null && echo "FRAMEWORK: Vite"
ls -la webpack.config.* 2>/dev/null && echo "FRAMEWORK: Webpack"
ls -la craco.config.* 2>/dev/null && echo "FRAMEWORK: CRA"

# 2. Check for build artifacts
ls -d .next 2>/dev/null && echo "BUILD: .next exists"
ls -d dist 2>/dev/null && echo "BUILD: dist exists"
ls -d build 2>/dev/null && echo "BUILD: build exists"

# 3. Check package manager
ls package-lock.json 2>/dev/null && echo "PKG: npm"
ls pnpm-lock.yaml 2>/dev/null && echo "PKG: pnpm"
ls yarn.lock 2>/dev/null && echo "PKG: yarn"

**If prerequisites not met:**

    undefined

Check

**Bundle & Loading**

    undefined

**Runtime Performance**

    undefined

**Core Web Vitals**

    undefined

**Database & API**

    undefined

**Infrastructure**

    undefined

Commands (Framework-Specific)

Next.js

# Check bundle size
cat .next/build-manifest.json 2>/dev/null | head -50 || echo "SKIP: No Next.js build"

# Analyze pages
ls -la .next/static/chunks/*.js 2>/dev/null | head -10 || echo "SKIP: No chunks"

Vite

# Check bundle size
ls -la dist/assets/*.js 2>/dev/null | head -10 || echo "SKIP: No Vite build"

# Check for source maps (should not be in prod)
find dist -name "*.map" 2>/dev/null | head -5

Generic (All Frameworks)

# F