Can this skill identify which specific npm package is causing a size increase?

By default, the skill operates at Tier B, identifying chunk-level changes. To attribute sizes to specific npm packages (Tier C), you must enable Rollup stats output (stats.json) in your vite.config.ts.

Does it support CI/CD integration?

Yes, the skill includes scripts for comparing current builds against baseline artifacts in CI/CD environments and can fail builds if they exceed pre-defined size limits.

Which build tools are compatible with this skill?

This skill is specifically optimized for projects using Vite and Rollup, as it relies on their manifest and chunking systems to analyze the asset graph.

How do I see a visual breakdown of my bundle modules?

The skill can guide you to generate and open an interactive treemap (dist/stats.html) which provides a visual representation of your module composition.

Bundle Size Analyzer

Name: Bundle Size Analyzer
Author: nikhillinit

bynikhillinit

Analytics & Monitoring

Monitors and analyzes Vite and Rollup bundle sizes to enforce performance budgets and prevent production bloat.

About

The Bundle Size Analyzer skill empowers Claude to proactively manage web application performance by auditing Vite and Rollup build outputs. It provides automated size reporting, enforces strict performance budgets, and detects regressions by comparing pull requests against baseline metrics. By leveraging Vite manifests and asset graphs, the skill identifies the largest chunks and initial load impacts, helping developers maintain lean production builds and optimize asset delivery throughout the development lifecycle.

Key Features

Initial load and entry-point size analysis
Automated bundle size reporting and regression detection
Per-bundle budget enforcement with pass/fail validation
Integration with Vite manifests for deep chunk graph insights
CI/CD workflow support for automated PR size comparisons
0 GitHub stars

Use Cases

Identifying optimization opportunities within Vite and Rollup build outputs
Preventing performance regressions during the code review process
Analyzing the impact of new features or dependencies on total bundle weight

About

Key Features

Initial load and entry-point size analysis
Automated bundle size reporting and regression detection
Per-bundle budget enforcement with pass/fail validation
Integration with Vite manifests for deep chunk graph insights
CI/CD workflow support for automated PR size comparisons
0 GitHub stars

Use Cases

Identifying optimization opportunities within Vite and Rollup build outputs
Preventing performance regressions during the code review process
Analyzing the impact of new features or dependencies on total bundle weight