Function sigmoid

src/core/reranker.ts:212–212

(x: number)

  // Rebuild the result array: reranked top-K + unchanged rest
  // Sigmoid normalizes raw logits to [0,1] so downstream quality gating works
  const sigmoid = (x: number) => 1 / (1 + Math.exp(-x));
  const reranked = scored.map(({ result, crossScore }) => ({
    ...result,
    score: sigmoid(crossScore)