In 51 mins, Anthropic engineers just broke down how they build with Claude Code + Fable 5
01:42 : Fable 5 now one-shots entire features
17:08 : How to use Loops to write and review Code
21:24 : System Prompt of Fable 5
26:19 : How Claude writes prompts for Claude
32:56 : The most used Loop at Anthropic
41:42 : How Fable 5 one-shotting a full video editor
51 min that teaches more about Claude Code than most paid courses.
Watch it, then read my step-by-step guide on building loops below.