The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
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A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.
- webpack
- javascript
- module-bundler
- loaders
A modern JavaScript utility library delivering modularity, performance, & extras.
- lodash
- utilities
- javascript
- modules
React-based framework with performance, scalability, and security built in.
Fast and low overhead web framework, for Node.js
- webframework
- performance
- speed
- nodejs
High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
- javascript
- webp
- image-processing
- jpeg
Automated auditing, performance metrics, and best practices for the web.
- audit
- best-practices
- performance-metrics
- pwa
🔥 A highly scalable, offline-first foundation with the best developer experience and a focus on performance and best practices.
Quasar Framework - Build high-performance VueJS user interfaces in record time
Monitor for any changes in your node.js application and automatically restart the server - perfect for development
- nodemon
- watch
- node
Node.js test runner that lets you develop with confidence 🚀
- test-runner
- ava
- javascript
- concurrency
:bird: :zap: Bluebird is a full featured promise library with unmatched performance.
A fully-modern text-based browser, rendering to TTY and browsers
- tty
- ssh
- mosh
- bandwidth-saver
👩🎤 CSS-in-JS library designed for high performance style composition
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
- javascript
- lazyload
- lazy-evaluation
- lazysizes
:fire: An extremely fast, React-like JavaScript library for building modern user interfaces
- inferno
- vdom
- performance
- react
High performance <canvas> rendering for React components
🎉 performant confetti animation in the browser
- canvas
- confetti
- jsdelivr
- animation
why-did-you-render by Welldone Software monkey patches React to notify you about potentially avoidable re-renders. (Works with React Native as well.)
⚡️Faster subsequent page-loads by prefetching in-viewport links during idle time
- performance
- web-performance
- prefetch
- prefetcher
Light and responsive lightbox script with focus on performance.
The perfect library for adding search, sort, filters and flexibility to tables, lists and various HTML elements. Built to be invisible and work on existing HTML.
- search
- sort
- fuzzy-search
- pagination
Firefox user.js for optimal privacy and security. Your favorite browser, but better.
- firefox
- anti-tracking
- mozilla
- privacy
📈 A small, fast chart for time series, lines, areas, ohlc & bars
- time-series
- ohlc
- line-chart
- performance