.

chatdesk-ui/components/chat/chat-helpers/index.ts

@@ -92,10 +92,46 @@ export const handleRetrieval = async (
   })
 
   // ✅ 只保留 similarity >= 0.8 的记录（大于等于 80%）
-  const filteredResults = results.filter(item => item.similarity >= 0.8)
+  // const filteredResults = results.filter(item => item.similarity >= 0.8)
 
+  // return filteredResults
+
+  // 阈值设定
+  const HIGH_THRESHOLD = 0.8
+  const LOW_THRESHOLD = 0.5
+
+  let filteredResults
+
+  // 找出所有 ≥ 0.8 的结果
+  const highSimilarity = results.filter(item => item.similarity >= HIGH_THRESHOLD)
+
+  if (highSimilarity.length > 0) {
+    // ✅ 高相似度：返回全部
+    filteredResults = highSimilarity
+  } else {
+    // ❌ 无高相似度
+    const acceptable = results.filter(item => item.similarity >= LOW_THRESHOLD)
+
+    if (acceptable.length === 0) {
+      // 🚫 无结果满足最低要求
+      filteredResults = []
+    } else {
+      // 🔍 返回最佳项
+      const best = acceptable.reduce((a, b) => (a.similarity > b.similarity ? a : b))
+      filteredResults = [best]
+    }
+  }
+
+  console.log("🔍 筛选后结果：", {
+    total: results.length,
+    >=80: highSimilarity.length,
+    >=50: results.filter(r => r.similarity >= LOW_THRESHOLD).length,
+    finalReturned: filteredResults.length,
+    topMatchScore: filteredResults[0]?.similarity
+  })
   return filteredResults
 
+
 }
 
 export const createTempMessages = (