fable-mode: Claude Code skill that gives Opus 4.8 the execution discipline of Fable 5 (verification, scope control, evidence-grounded reporting)

SKILL.md name fable-mode description Makes Claude Opus 4.8 (or Sonnet) work with the execution discipline of Claude Fable 5 - autonomous execution, evidence-grounded progress, outcome-first communication, strict scope control. Use at the start of any complex multi-step task on a non-Fable model, or when the user says "fable mode". Fable Mode: Fable 5 execution discipline on Opus 4.8