feat(wing): backtest metric (coverage/precision at a threshold) and shared TopWing (#205 S1)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-20 05:58:55 +02:00
parent c06509afe4
commit 365130459f
3 changed files with 89 additions and 1 deletions
@@ -147,8 +147,15 @@ func (r Resolver) scorerTop(text string) (string, bool) {
 	if r.Scorer == nil {
 		return "", false
 	}
+	return TopWing(r.Scorer.Score(text))
+}
+
+// TopWing returns the unique highest-scoring wing in scores, or false when
+// there is none or the top is tied. Shared by the Resolver and the backtest so
+// both apply the same notion of "the scorer has an opinion".
+func TopWing(scores map[string]float64) (string, bool) {
 	best, bestScore, tied := "", 0.0, false
-	for k, v := range r.Scorer.Score(text) {
+	for k, v := range scores {
 		switch {
 		case v > bestScore:
 			best, bestScore, tied = norm(k), v, false