The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

The free and privacy-friendly screen recorder with no limits 🎥

The ultimate generator based flow-control goodness for nodejs (supports thunks, promises, etc)

A CLI tool to run multiple npm-scripts in parallel or sequential.

Keep your bundle size in check

a mind mapping library built by javascript

Mock http requests made using fetch

Test tearing and branching in React concurrent rendering

Distilled CSS-in-JS for gourmet developers

Scrolls an element into view if possible

Fake XHR and fake server

co based event emitter handling.

No nonsense state management with Immer and React hooks

Script to convert Node libraries to Deno

CLI helper to find and execute an executable file by walking up parent directories.

Live, tested documentation using MDX docz and Cypress.io

Modelis javascript modeling support.

Reporter classes for the jasmine test framework. Includes JUnitXmlReporter for generating junit xml output for running in CI environments like Hudson.