diff --git a/test/features/localization/renderer/zhBrandTerms.test.ts b/test/features/localization/renderer/zhBrandTerms.test.ts
new file mode 100644
index 00000000..bc921ec7
--- /dev/null
+++ b/test/features/localization/renderer/zhBrandTerms.test.ts
@@ -0,0 +1,24 @@
+import { readdirSync, readFileSync } from 'node:fs';
+import path from 'node:path';
+import { describe, expect, it } from 'vitest';
+
+const zhLocaleDirectory = path.join(
+  process.cwd(),
+  'src/features/localization/renderer/locales/zh'
+);
+
+const zhLocaleFiles = readdirSync(zhLocaleDirectory)
+  .filter((fileName) => fileName.endsWith('.json'))
+  .sort();
+
+describe('zh locale brand terms', () => {
+  it('keeps Claude untranslated in Chinese locale copy', () => {
+    for (const fileName of zhLocaleFiles) {
+      const contents = readFileSync(path.join(zhLocaleDirectory, fileName), 'utf8');
+
+      expect(contents, `${fileName} should use Claude instead of 克劳德`).not.toContain(
+        '克劳德'
+      );
+    }
+  });
+});