Prompt Details
Model
(claude-4-6-sonnet)
Token size
376
Example input
[app_type]: E-commerce marketplace
[rendering]: Next.js App Router with RSC + ISR
[hosting]: Vercel Edge + Serverless
[traffic_level]: ~120k DAU with seasonal spikes
[critical_flows]: Browse catalog, product pages, checkout, payments
Example output
Executive Summary:
- LCP is degraded by oversized hero images and missing preload/priority.
- Bundle size is inflated by shared client components on checkout routes.
- Hydration cost is high due to unnecessary client boundaries.
- Third-party scripts block main thread during peak traffic.
- Cache revalidation is inconsistent, increasing TTFB.
Final Score: 62/100 – NO-GO
Fix first: optimize hero images, split bundles by route, defer third-party scripts.
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CLAUDE-4-6-SONNET
A focused prompt to audit and improve the performance of production Next.js apps. It identifies LCP, CLS, and TTFB issues, hydration and rendering bottlenecks, bundle size problems, image optimization gaps, caching mistakes, and third-party script overhead. You’ll get prioritized recommendations, quick wins, and a practical optimization plan based on modern Next.js best practices (App Router, Server Components, next/image, dynamic imports). Ideal before launch or when performance degrades.
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Added over 1 month ago
