Claude Fable 5 Quality Is Bottlenecked by Your Unknowns: A Walkthrough of Anthropic's Field Guide
"A field guide to Claude Fable 5: Finding your unknowns" is Anthropic's official guide, published July 6, 2026, on surfacing the unknowns that cap the quality of agentic work. We walk through the map-and-territory framing, the four categories of unknowns, and all eight prompt patterns.
