FeHelper is a browser extension that combines tools for web development, testing, data conversion, debugging, and everyday productivity in one toolbox. It is used by developers, testers, operations staff, and other browser users for tasks such as formatting JSON, testing WebSockets, beautifying code, capturing pages, and generating test data. The catalogue entries provide rules, a skill, and an instruction for using or extending the extension.
Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check.