5 AI stories of the week 1. Stanford put a free course on building AI agents online and students build an agent from scratch, then learn how to tell if it really works. Nearly 4,500 people took advantage of a list of charges a day. The author says he's used Claude for three years and runs it every day, from a 30-day learning program to e-mail without corporate language. Code Claude Engineer Warns Against "Cognitive Surrender" Eddie Osman says you stop testing, and the agent's answer becomes yours. In the Wharton study he cites, people got AI answers wrong 73% of the time. Carpathia got sick from YouTube, and built a new one, Claude built the hacker from 6454 new hacker recommendations in about two hours. "I can breathe again," he wrote. A rebuilt key A $1.3 million idea in 9 minutes A day after his Sovkalo grew and #036;1.3 million for silent glasses, Joe Bellio says he used AI to make the AirPods version. Rapid prototyping is not a substitute for their hardware. The terms: