Route a coding task through a three-stage model relay — Fable 5 plans and classifies complexity, Opus 4.8 or Sonnet 5 implements based on that complexity, then Fable 5 reviews the result. Includes model fallback chains for when a usage limit is exhausted or a model is unavailable. Use for any non-tr
Route a coding task through a three-stage model relay — Fable 5 plans and classifies complexity, Opus 4.8 or Sonnet 5 implements based on that complexity, then Fable 5 reviews the result. Includes model fallback chains for when a usage limit is exhausted or a model is unavailable. Use for any non-trivial code change: features, refactors, bug fixes with unknown root cause, or multi-file work. Do NO