fix(bridge): KB 检索尊重 limit/去重并接入 reranker；记录 quality/KB 批次运行结果

2026-10-23 11:59:07 +08:00
parent 589e5f9349
commit cdeb30f5c4
4 changed files with 61 additions and 7 deletions
@@ -377,7 +377,17 @@ function createTools(cfg, deps = {}) {
    const query = String(args.query || '').trim();
    if (!query) throw new ToolError(400, 'invalid_arguments', 'query is required');
    const limit = Math.min(Number(args.limit) || 5, 8);
-    let results = await retriever.searchKB(query, Math.max(limit, 8));
+    // 有 reranker 时多取一些候选再重排；没有 reranker 时必须尊重调用方 limit。
+    const fetchLimit = reranker ? Math.max(limit, 8) : limit;
+    let results = await retriever.searchKB(query, fetchLimit);
+    // parent/child 可能命中同一篇文章：按 question+answer 去重后再重排
+    const seen = new Set();
+    results = results.filter((r) => {
+      const key = `${r.question || ''}\u0000${r.answer || ''}`;
+      if (seen.has(key)) return false;
+      seen.add(key);
+      return true;
+    });
    if (reranker) results = await reranker.rerank(query, results, limit);
    return {
      results,