diff --git a/.github/workflows/ci-bundling-trial.yml b/.github/workflows/ci-bundling-trial.yml
index cb9b868b45..e3a398eb37 100644
--- a/.github/workflows/ci-bundling-trial.yml
+++ b/.github/workflows/ci-bundling-trial.yml
@@ -416,3 +416,45 @@ jobs:
       - name: 'Run All Core Tests'
         run: 'npx vitest run --pool=threads packages/core/src --exclude "**/*.integration.test.ts"'
         shell: 'bash'
+
+  build_bundle:
+    name: 'Build Bundle'
+    runs-on: 'gemini-cli-ubuntu-16-core'
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
+
+      - name: 'Set up Node.js'
+        uses: 'actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020'
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'npm'
+
+      - name: 'Install & Build'
+        run: |
+          npm ci
+          npm run bundle
+
+      - name: 'Upload Bundle'
+        uses: 'actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02'
+        with:
+          name: 'gemini-bundle'
+          path: 'bundle/'
+
+  test_e2e:
+    name: 'Test (Linux) - E2E with Bundle'
+    needs: build_bundle
+    runs-on: 'gemini-cli-ubuntu-16-core'
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8'
+
+      - name: 'Setup with Bundle'
+        uses: './.github/actions/setup-gemini'
+        with:
+          mode: 'bundle'
+          bundle-artifact: 'gemini-bundle'
+
+      - name: 'Run Integration Tests'
+        run: 'npm run test:integration:sandbox:none'
+        shell: 'bash'