PROMPTING CLAUDE FABLE 5

Summary from the TLDR Founders newsletter

Claude Fable 5 can take on problems that were previously too complex, long-running, or ambiguous. It is particularly effective at end-to-end work that takes a person hours, days, or weeks to complete. Claude Fable 5 has several behavior differences from Claude Opus 4.8 that may require prompt or scaffolding updates. This guide covers promising and scaffolding patterns specific to Claude Fable 5 and Claude Mythos 5.