diff --git a/.github/workflows/preview-pages.yml b/.github/workflows/preview-pages.yml
new file mode 100644
index 0000000..f152b7e
--- /dev/null
+++ b/.github/workflows/preview-pages.yml
@@ -0,0 +1,49 @@
+name: Preview Pages
+on:
+  workflow_dispatch:
+permissions: {}
+concurrency:
+  group: site-data-${{ github.repository }}
+  cancel-in-progress: false
+jobs:
+  build:
+    if: github.repository == 'shendeguize/AgentOrganon' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-24.04
+    timeout-minutes: 30
+    env:
+      ORGANON_SITE_PREVIEW: 'true'
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
+        with:
+          path: product
+          submodules: recursive
+          persist-credentials: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
+        with:
+          node-version: '22.23.2'
+      - name: Install locked site build dependencies
+        working-directory: product/OrganonCore/tools/site
+        run: npm ci --ignore-scripts
+      - name: Build and check current site preview
+        working-directory: product
+        env:
+          ORGANON_CORE_ROOT: ${{ github.workspace }}/product/OrganonCore
+        run: npm run check:site
+      - uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa
+        with:
+          path: product/dist/site/
+  deploy:
+    needs: build
+    runs-on: ubuntu-24.04
+    timeout-minutes: 10
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e
+        id: deployment
\ No newline at end of file
diff --git a/AdvisedOrganons b/AdvisedOrganons
index 6b32ede..bfa4992 160000
--- a/AdvisedOrganons
+++ b/AdvisedOrganons
@@ -1 +1 @@
-Subproject commit 6b32edea1619e740e229864da757c25d36096bc1
+Subproject commit bfa4992f492d431aec3d056cc98ab378b22033f9
diff --git a/OrganonCore b/OrganonCore
index 77c1ef0..28f5a01 160000
--- a/OrganonCore
+++ b/OrganonCore
@@ -1 +1 @@
-Subproject commit 77c1ef086cc2eb55d192059e97658abc5ca7f95f
+Subproject commit 28f5a01274489ae6795e6b76b34c74426b16d550
diff --git a/maintenance/pages-and-stars.md b/maintenance/pages-and-stars.md
index 2c5ccd1..1946548 100644
--- a/maintenance/pages-and-stars.md
+++ b/maintenance/pages-and-stars.md
@@ -1,6 +1,6 @@
 # Pages and observed GitHub stars
 
-This repository publishes its site from the independent `site-data` branch. `main` CI produces development artifacts. It does not deploy them.
+Verified releases use the independent `site-data` branch. `main` CI produces development artifacts. **Preview Pages** (`preview-pages.yml`) may be dispatched manually from `main` to build, check and deploy the current source without a release receipt. A preview is not a verified release, does not update `site-data` or star history, and may be replaced by a later preview or verified release. Deploying it replaces the site currently served at the public Pages URL until another deployment succeeds.
 
 ## Publish a released site
 
diff --git a/tests/release-site-data.test.mjs b/tests/release-site-data.test.mjs
index 23712b9..4c55fb4 100644
--- a/tests/release-site-data.test.mjs
+++ b/tests/release-site-data.test.mjs
@@ -3,9 +3,11 @@ import assert from 'node:assert/strict';
 import fs from 'node:fs';
 import os from 'node:os';
 import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 import { PRODUCTS, digest, writeJSON } from '../scripts/release/lib.mjs';
 import { sourceIdentity } from '../scripts/release/manifest.mjs';
 import { assertSiteRunner, inventory, validateState, sampleStars, installPublic, buildIdentity, verifyForSite, checkoutState } from '../scripts/release/site-data.mjs';
+const workspace = fileURLToPath(new URL('../', import.meta.url));
 const repository = 'shendeguize/AgentOrganon';
 function temporary(t) { const root = fs.mkdtempSync(path.join(os.tmpdir(), 'organon-site-state-')); t.after(() => fs.rmSync(root, { recursive: true, force: true })); return root; }
 function manifest(version = '1.0.0-rc.1') {
@@ -83,3 +85,39 @@ test('data branch distinguishes first creation from existing branch and network
     assert(calls.find(args=>args.includes('ls-remote')).includes('refs/heads/site-data'));
   }
 });
+
+test('preview Pages deploy current main without creating verified release state', () => {
+  const workflows = [
+    ['', 'shendeguize/AgentOrganon', 'product/dist/site/'],
+    ['OrganonCore', 'shendeguize/OrganonCore', 'product/dist/site/'],
+    ['AdvisedOrganons', 'shendeguize/AdvisedOrganons', 'product/dist/site/'],
+  ];
+  for (const [relative, expectedRepository, output] of workflows) {
+    const workflow = fs.readFileSync(path.join(workspace, relative, '.github/workflows/preview-pages.yml'), 'utf8');
+    assert.match(workflow, /^name: Preview Pages\non:\n  workflow_dispatch:\npermissions: \{\}\n/);
+    assert.equal((workflow.match(/^  workflow_dispatch:$/gm) || []).length, 1);
+    assert.doesNotMatch(workflow, /^  (push|pull_request|schedule|workflow_call):/m);
+    assert.match(workflow, new RegExp(`  build:\n    if: github\\.repository == '${expectedRepository}' && github\\.ref == 'refs/heads/main'`));
+    assert.match(workflow, /group: site-data-\$\{\{ github\.repository \}\}/);
+    assert.match(workflow, /ORGANON_SITE_PREVIEW: 'true'/);
+    assert.equal((workflow.match(/permissions:/g) || []).length, 3);
+    assert.match(workflow, /build:[\s\S]*?permissions:\n      contents: read/);
+    assert.match(workflow, /deploy:[\s\S]*?permissions:\n      pages: write\n      id-token: write/);
+    const actions = [...workflow.matchAll(/uses: ([^\s]+)/g)].map(match => match[1]);
+    assert(actions.every(action => /@[a-f0-9]{40}$/.test(action)));
+    assert(actions.includes('actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa'));
+    assert(actions.includes('actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e'));
+    assert.match(workflow, /actions\/checkout@[a-f0-9]{40}[\s\S]*?persist-credentials: false/);
+    assert.match(workflow, /deploy:\n    needs: build/);
+    assert.match(workflow, new RegExp(`path: ${output.replaceAll('/', '\\/')}`));
+    assert(workflow.indexOf('run: npm run check:site') < workflow.indexOf('actions/upload-pages-artifact@'));
+    assert.doesNotMatch(workflow, /contents: write|site-data\.mjs|GOVERNANCE_AUDIT_TOKEN|release-manifest/);
+  }
+  const builder = fs.readFileSync(path.join(workspace, 'OrganonCore/tools/site/build.mjs'), 'utf8');
+  const layout = fs.readFileSync(path.join(workspace, 'OrganonCore/tools/site/theme/Layout.vue'), 'utf8');
+  assert.match(builder, /preview: process\.env\.ORGANON_SITE_PREVIEW === 'true'/);
+  assert.match(layout, /Source preview · not a release/);
+  assert.match(layout, /源码预览 · 非发行版/);
+  assert.match(layout, /Release candidate · awaiting review/);
+  assert.match(layout, /Stable release/);
+});
diff --git a/zh/maintenance/pages-and-stars.md b/zh/maintenance/pages-and-stars.md
index 195ca77..9585a16 100644
--- a/zh/maintenance/pages-and-stars.md
+++ b/zh/maintenance/pages-and-stars.md
@@ -1,6 +1,6 @@
 # Pages 与 GitHub 星标实测
 
-本仓库从独立的 `site-data` 分支发布站点。`main` CI 生成开发产物，不部署这些产物。
+已验证发行版使用独立的 `site-data` 分支。`main` CI 生成开发产物。可以从 `main` 手动运行 **Preview Pages**（`preview-pages.yml`），构建并检查当前源码后直接部署，但不生成发行收据。预览站点不是已验证发行版，不更新 `site-data` 或星标历史，并可被后续预览或已验证发行版替换。部署预览会替换 Pages 公开地址当前提供的站点，直至另一次部署成功。
 
 ## 发布已发行站点