diff --git a/components/AppShell.auto-name.test.mjs b/components/AppShell.auto-name.test.mjs
new file mode 100644
index 000000000..cfa55a2fc
--- /dev/null
+++ b/components/AppShell.auto-name.test.mjs
@@ -0,0 +1,12 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import test from "node:test";
+
+const source = fs.readFileSync(new URL("./AppShell.tsx", import.meta.url), "utf8");
+
+test("压缩后的会话仍可根据持久化消息数生成标题", () => {
+  assert.match(
+    source,
+    /\(sessionStats\?\.userMessages \?\? 0\) > 0 \|\| selectedSession\.messageCount > 0/,
+  );
+});
diff --git a/components/AppShell.tsx b/components/AppShell.tsx
index d4d827fa7..b22892e41 100644
--- a/components/AppShell.tsx
+++ b/components/AppShell.tsx
@@ -1023,9 +1023,10 @@ export function AppShell() {
                  {!isMobile && <span>{translate("history.label")}</span>}
               </button>
               {(() => {
+                // 上下文压缩后当前消息可能不再包含 user 消息，需同时参考会话文件的消息总数。
                 const hasMessages = Boolean(
                   selectedSession
-                  && (sessionStats?.userMessages ?? selectedSession.messageCount) > 0,
+                  && ((sessionStats?.userMessages ?? 0) > 0 || selectedSession.messageCount > 0),
                 );
                 const disabled = !selectedSession || !hasMessages || autoNameStatus.kind === "naming";
                 const isSuccess = autoNameStatus.kind === "success";