diff --git a/bridge/src/tools.js b/bridge/src/tools.js
index 719cd03..6759207 100644
--- a/bridge/src/tools.js
+++ b/bridge/src/tools.js
@@ -421,7 +421,8 @@ function createTools(cfg, deps = {}) {
       const cmd = {
         keyword: rpcQuery,
         page: 1,
-        pageSize: limit,
+        // 多取候选，下面按库存排序后再截断到 limit，避免缺货商品占满前几条
+        pageSize: limit * 4,
         languageId: profile.languageId,
         tenantId: profile.tenantId,
         currencyCode: profile.currencyCode || '',
@@ -439,7 +440,6 @@ function createTools(cfg, deps = {}) {
       const list = Array.isArray(paging) ? paging : (paging.data || paging.list || []);
       total = result.total != null ? result.total : (paging.total != null ? paging.total : null);
       items = (Array.isArray(list) ? list : [])
-        .slice(0, limit)
         .map((p) => {
           const name = p.spuName || p.name || p.title || null;
           const sku = p.sku || p.model || (Array.isArray(p.skus) && p.skus[0] ? p.skus[0].productId : null);
@@ -458,7 +458,13 @@ function createTools(cfg, deps = {}) {
             mark_price: p.markPriceWithCurrency || null,
           };
         })
-        .filter((p) => p.name);
+        .filter((p) => p.name)
+        // 有库存优先：stock>0 → 0，未知 → 1，缺货 → 2；sort 稳定，保留 RPC 原顺序
+        .sort((a, b) => {
+          const rank = (p) => (p.stock > 0 ? 0 : p.stock === null ? 1 : 2);
+          return rank(a) - rank(b);
+        })
+        .slice(0, limit);
     } catch (err) {
       catalogError = err.message;
     }