Rank every query, unite the top notes into one context under a per-document and a total budget, expand context choices over paragraph or document ids plus NONE, add the covered gate, judge context choices alone and the rest batched, attach the answering paragraphs' text. A missing TypeSafe key is a call-time error shown in status, not a startup failure. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>