Follow the instructions in .github/prompts/review-until-clean.prompt.md to perform Phase A+B+C iterative review until merge-ready.
Model policy: Phase A's Agent fan-out defaults to model="sonnet" (Sonnet 5) for every spawned agent — running the whole skill under Fable has exhausted the token budget before. See the prompt file's "Model policy" section for the Fable-combination exception and the Opus fallback when Fable is unavailable.