.@danshipper on building a computer use agent in Fable 5.1. Dan asked Anthropic’s Fable 5.1 to build ‘Hands’—an agent that allows other agents to control his computer remotely from any other AI tool, including Slack and ChatGPT. He’d tried building the same thing before on GPT-5.6 Sol and on an earlier Fable model; neither worked. This time, he gave Fable 5.1 a single prompt. The model worked on it using around 40 sub-agents—and a fully working app came out the other end. Ordinarily,…