Modern Web Guidance: Teaching AI Agents to Stop Coding Like It's 2019 (opens in new tab)

This is a submission for the There’s a slightly embarrassing problem that almost everyone using AI coding agents has run into: your agent still codes like it’s 2019. Ask it to build a modal, and it reaches for a with JavaScript click handlers and messy z-index hacks. Ask it to build a tooltip, and it creates a whole positioning system from scratch. Ask it to add passkey login, and it starts rebuilding things the browser already handles on its own. This isn't really the agent's fault. It...