diff --git a/apps/ai-game-creator-shell/tests/resourceReferences.test.ts b/apps/ai-game-creator-shell/tests/resourceReferences.test.ts
new file mode 100644
index 000000000..ebcdf8794
--- /dev/null
+++ b/apps/ai-game-creator-shell/tests/resourceReferences.test.ts
@@ -0,0 +1,71 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  type ChatComposerDraft,
+  chatComposerDraftToDirectCodexUserItem,
+} from '../src/features/project-workspace/resourceReferences';
+
+describe('DirectProject user Response item', () => {
+  it('保留 Lexical content 的文本与引用交错顺序', () => {
+    const draft: ChatComposerDraft = {
+      text: '忽略的扁平摘要',
+      references: [],
+      content: [
+        { type: 'input_text', text: '先看 ' },
+        { type: 'agc_resource_reference', resourceId: 'asset-hero' },
+        { type: 'input_text', text: ' 再看 ' },
+        {
+          type: 'agc_runtime_region_reference',
+          label: '主画面',
+          runId: 'run-1',
+          versionId: 'version-1',
+          elementTag: 'canvas',
+          elementRole: 'playfield',
+          text: '可试玩区域',
+          width: 320,
+          height: 180,
+          resourceIds: ['asset-hero'],
+        },
+      ],
+    };
+
+    expect(
+      chatComposerDraftToDirectCodexUserItem(draft, 'turn-1:user'),
+    ).toEqual({
+      type: 'message',
+      role: 'user',
+      id: 'turn-1:user',
+      content: draft.content,
+    });
+  });
+
+  it('资源引用只投影稳定 resourceId，不携带展示字段', () => {
+    const draft: ChatComposerDraft = {
+      text: '请使用素材',
+      references: [
+        {
+          type: 'resource',
+          resourceId: 'asset-hero',
+          kind: 'character',
+          mediaType: 'image/png',
+          label: '主角',
+          category: 'character',
+          tags: ['hero'],
+          source: 'asset-picker',
+        },
+      ],
+    };
+
+    expect(
+      chatComposerDraftToDirectCodexUserItem(draft, 'turn-2:user'),
+    ).toEqual({
+      type: 'message',
+      role: 'user',
+      id: 'turn-2:user',
+      content: [
+        { type: 'input_text', text: '请使用素材' },
+        { type: 'agc_resource_reference', resourceId: 'asset-hero' },
+      ],
+    });
+  });
+});