debug-bundle

Analyze Next.js bundle output to identify heavy dependencies and duplicate packages.

Updated Mar 24, 2026

Search Tags:#performance #dependencies #analysis #next.js #tree-shaking #bundle

Ready to run

npx skills add https://github.com/SumitRajpal/nextjs-claude-architecture --skill debug-bundle

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Please help me install this Agent Skill.
Skill: debug-bundle
Source: https://github.com/SumitRajpal/nextjs-claude-architecture/tree/main/.claude/skills/debug-bundle
Command: npx skills add https://github.com/SumitRajpal/nextjs-claude-architecture --skill debug-bundle

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers identify and reduce bloated Next.js bundles by analyzing build output, heavy dependencies, and client/server boundaries.

Core Features & Use Cases

Analyze bundle output to locate large First Load JS and identify heavy dependencies.
Trace heavy dependencies through imports to pinpoint inefficiencies and suggest targeted fixes.
Use cases include optimizing a large app with many routes, or when performance regressions appear after dependency upgrades.

Quick Start

Analyze your Next.js app's build to locate and prune bundle bloat.

Frequently Asked Questions about debug-bundle

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I diagnose Next.js bundle bloat?▼

To diagnose Next.js bundle bloat, analyze your build output to identify heavy dependencies and excessive client-side code. This process tracks large First Load JS, checks for duplicate React instances, and highlights cross-boundary imports.

Why does my Next.js build have duplicate packages?▼

Duplicate packages in a Next.js build often stem from cross-boundary imports or misconfigured dependencies. Analyzing the bundle output traces these heavy imports to pinpoint inefficiencies and identify duplicated React instances or libraries.

What is the best way to reduce large First Load JS in Next.js?▼

The best way to reduce large First Load JS is to trace heavy dependencies through your imports and apply targeted fixes. This analysis suggests concrete optimizations like using dynamic imports and improving tree-shaking.

Can I use bundle analysis to find heavy routes in a production Next.js app?▼

Yes, you can analyze bundle output for production Next.js projects to pinpoint heavy routes. The analysis tracks large dependencies and excessive client-side code to locate performance bottlenecks across your application's routes.

How do I fix Next.js performance regressions after dependency upgrades?▼

Fix performance regressions after dependency upgrades by analyzing the bundle output to locate bloated dependencies. The analysis traces heavy imports to pinpoint inefficiencies and suggests targeted fixes like dynamic imports.