diff --git a/TODO_NEXT_STEPS.txt b/TODO_NEXT_STEPS.txt
index df98e37..52c88cd 100644
--- a/TODO_NEXT_STEPS.txt
+++ b/TODO_NEXT_STEPS.txt
@@ -4,6 +4,7 @@
 ================================================================================
 
 【已完成】
+   - V10.510 Webcrumbs 從 runtime 接線推進到專案內 live plugin 試點：`/webcrumbs` 會設定 `StockPlatformSharedUI.allowedPluginUris` 並嵌入同源 `/webcrumbs-assets/plugins/finance.market-ticker-strip/0.1.0`、`finance.ai-candidate-card/0.1.0`，用同一頁同時驗 runtime、plugin proxy 與共享 UI loader 初始化。
    - V10.509 新增市場情報 MCP Fetch Candidate Queue Writer Review Decision Approval Writer Preflight 安全預覽 gate：只審核 human approval 通過後由操作員貼回的 writer preflight 摘要，確認 approval identity、writer_preflight_id、row count、dedupe keys、approved decision 到 target review_state 的逐列映射、decision/approval/preflight evidence refs、exact identity / variant / overwrite guard 與 operator boundary；API 不讀 token、不執行 CLI、不開 DB、不寫 preflight/approval/decision/match、不更新 review_state、不補 queue、不掛 scheduler，只放行到後續 CLI review / run package 設計。
    - V10.508 Webcrumbs 轉為 momo-pro 同源 asset proxy：`WEBCRUMBS_RUNTIME_URL` 預設改為 `/webcrumbs-assets/loader/webcrumbs-compatible-loader.js`，新增 allowlist proxy 只代理 188 Shared UI Hub 的 `loader/`、`plugins/`、`demo/`，避免 `webcrumbs.wooo.work` 公網 TLS / Basic Auth 尚未收斂時影響正式頁面載入；`/webcrumbs` 診斷頁同步顯示 asset upstream。
    - V10.507 接入 Webcrumbs 共用 UI Runtime：新增 `WEBCRUMBS_*` 環境設定與 `/webcrumbs` 診斷入口，`ewoooc_base.html` 會在 runtime 啟用且 URL 有效時載入自架 Webcrumbs script；側欄新增 Webcrumbs 入口，並補 `docs/guides/webcrumbs_shared_runtime.md` 作為跨專案接入手冊。生產仍需固定版本與自架 plugin URI，不使用官方 `@latest`。
diff --git a/config.py b/config.py
index 1f0bc2e..0f547f1 100644
--- a/config.py
+++ b/config.py
@@ -402,7 +402,7 @@ YOUTUBE_API_KEY = os.getenv('YOUTUBE_API_KEY', '')
 # ==========================================
 # 系統版本與路徑
 # ==========================================
-SYSTEM_VERSION = "V10.509"
+SYSTEM_VERSION = "V10.510"
 LOG_FILE_PATH = os.path.join(BASE_DIR, 'logs/system.log')
 public_url = PUBLIC_URL  # 用於模板顯示
 
diff --git a/docs/guides/webcrumbs_shared_runtime.md b/docs/guides/webcrumbs_shared_runtime.md
index 1bef47f..8973d61 100644
--- a/docs/guides/webcrumbs_shared_runtime.md
+++ b/docs/guides/webcrumbs_shared_runtime.md
@@ -63,6 +63,7 @@ style.css
 ## 驗收
 
 - `/webcrumbs` 顯示 runtime URL、版本與 plugin base。
+- `/webcrumbs` 會嵌入同源 `/webcrumbs-assets/plugins/...` 的 live plugin preview，作為 shared runtime 的第一個專案內試點。
 - `/webcrumbs-assets/loader/webcrumbs-compatible-loader.js` 回 200 且 content type 是 JavaScript。
 - `ewoooc_base.html` 在 `WEBCRUMBS_ENABLED=true` 且 runtime URL 有效時輸出 `<script data-webcrumbs-runtime=...>`。
 - 任一試點頁嵌入 plugin 後，瀏覽器 console 不應有 `MISSING_URI`、`STYLE_LOAD_ERROR`、`SCRIPT_LOAD_ERROR`。
diff --git a/docs/memory/history_logs.md b/docs/memory/history_logs.md
index 8718be1..dcd5eac 100644
--- a/docs/memory/history_logs.md
+++ b/docs/memory/history_logs.md
@@ -13,6 +13,7 @@
 ## 📅 詳細更新日誌 (考古存檔)
 
 ### 2026-05-31：Webcrumbs 共用 UI Runtime 與市場情報 writer approval
+- **V10.510 Webcrumbs live plugin 試點**: `/webcrumbs` 診斷頁不再只顯示 runtime 設定，新增 `StockPlatformSharedUI.allowedPluginUris` 與同源 `/webcrumbs-assets/plugins/finance.market-ticker-strip/0.1.0`、`finance.ai-candidate-card/0.1.0` live plugin embed，讓 shared-ui loader、plugin asset proxy 與頁面初始化時序能在 momo-pro 內直接驗收。
 - **V10.509 市場情報 MCP Fetch Candidate Queue Writer Review Decision Approval Writer Preflight gate**: 新增 `/api/market_intel/mcp_fetch_candidate_queue_writer_review_decision_approval_writer_preflight` 與 UI preview，只審核 human approval 通過後的 operator writer preflight 摘要；要求 approval linkage、writer_preflight_id、target operation、row count、dedupe keys、approved decision 到 target review_state 的逐列映射、decision/approval/preflight evidence refs、artifact paths、matched row exact-identity/variant/overwrite guard 與 operator confirmation 對齊，且 API 不讀 token、不執行 CLI、不開 DB、不寫 preflight/approval/decision/match、不更新 review_state、不補 queue、不掛 scheduler，只放行到後續 CLI review / run package 設計。
 - **V10.508 Webcrumbs 同源 asset proxy 收斂**: 正式頁面 runtime 預設改走 `/webcrumbs-assets/loader/webcrumbs-compatible-loader.js`，由 momo-pro 代理 188 Shared UI Hub 的 allowlist asset path（`loader/`、`plugins/`、`demo/`），避免 `webcrumbs.wooo.work` 公網 TLS、Basic Auth 或入口轉發尚未完成時造成頁面 script 載入失敗；`/webcrumbs` 診斷頁同步顯示 asset upstream，`WEBCRUMBS_PLUGIN_BASE_URL` 預設改為同源 `/webcrumbs-assets/plugins`。
 - **V10.507 Webcrumbs 共用 UI Runtime 接入**: 新增 `WEBCRUMBS_*` 設定、`/webcrumbs` 診斷頁、全站 `ewoooc_base.html` runtime script 載入守門與側欄入口；runtime 僅允許自架固定版本 URL，禁止正式環境使用官方 `@latest`，並新增 `docs/guides/webcrumbs_shared_runtime.md` 與 ADR-037 記錄共用 microfrontend/plugin loader 邊界。
diff --git a/routes/system_public_routes.py b/routes/system_public_routes.py
index 5b62317..e0fa6c0 100644
--- a/routes/system_public_routes.py
+++ b/routes/system_public_routes.py
@@ -109,6 +109,19 @@ def _external_tool_payload(kind):
     if kind == 'webcrumbs':
         runtime_ready = bool(WEBCRUMBS_ENABLED and WEBCRUMBS_RUNTIME_URL)
         launch_url = WEBCRUMBS_BASE_URL if WEBCRUMBS_BASE_URL else ''
+        plugin_base = (WEBCRUMBS_PLUGIN_BASE_URL or '').rstrip('/')
+        plugin_previews = []
+        if plugin_base:
+            plugin_previews = [
+                {
+                    'label': 'Market ticker strip',
+                    'uri': f'{plugin_base}/finance.market-ticker-strip/0.1.0',
+                },
+                {
+                    'label': 'AI candidate card',
+                    'uri': f'{plugin_base}/finance.ai-candidate-card/0.1.0',
+                },
+            ]
         return {
             'key': 'webcrumbs',
             'eyebrow': 'Shared UI Runtime',
@@ -131,6 +144,8 @@ def _external_tool_payload(kind):
                 {'label': '比價覆核', 'href': '/?filter=pchome_review', 'icon': 'fas fa-scale-balanced'},
                 {'label': 'AI 觀測台', 'href': '/observability/overview', 'icon': 'fas fa-satellite-dish'},
             ],
+            'plugin_previews': plugin_previews,
+            'plugin_preview_uris': [preview['uri'] for preview in plugin_previews],
         }
 
     launch_url = _safe_launch_url(GRIST_URL, '/grist')
diff --git a/templates/external_tool_status.html b/templates/external_tool_status.html
index 636faf2..18c2c34 100644
--- a/templates/external_tool_status.html
+++ b/templates/external_tool_status.html
@@ -60,6 +60,26 @@
     </div>
   </section>
 
+  {% if tool.key == 'webcrumbs' and tool.plugin_previews %}
+  <script>
+    window.StockPlatformSharedUI = window.StockPlatformSharedUI || {};
+    window.StockPlatformSharedUI.allowedPluginUris = {{ tool.plugin_preview_uris | tojson }};
+  </script>
+  <section class="external-tool-webcrumbs-preview" aria-label="Webcrumbs live preview">
+    <div class="external-tool-section-title">
+      <span class="external-tool-kicker">Live Plugin</span>
+      <h2>Shared UI Hub</h2>
+    </div>
+    <div class="external-tool-webcrumbs-grid">
+      {% for preview in tool.plugin_previews %}
+      <div class="external-tool-webcrumbs-plugin" data-plugin-uri="{{ preview.uri }}">
+        <stock-platform-plugin uri="{{ preview.uri }}"></stock-platform-plugin>
+      </div>
+      {% endfor %}
+    </div>
+  </section>
+  {% endif %}
+
   <section class="external-tool-actions" aria-label="可用替代入口">
     <div class="external-tool-section-title">
       <span class="external-tool-kicker">可用入口</span>
diff --git a/tests/test_external_tool_entrypoints.py b/tests/test_external_tool_entrypoints.py
index 8b8ebb2..15545d7 100644
--- a/tests/test_external_tool_entrypoints.py
+++ b/tests/test_external_tool_entrypoints.py
@@ -40,6 +40,12 @@ def test_external_tool_bridge_pages_are_diagnostic_not_blank():
     assert "def webcrumbs_asset_proxy(asset_path)" in route_source
     assert "WEBCRUMBS_ASSET_ALLOWED_PREFIXES" in route_source
     assert "Webcrumbs 共用 UI Runtime" in route_source
+    assert "plugin_previews" in route_source
+    assert "finance.market-ticker-strip/0.1.0" in route_source
+    assert "finance.ai-candidate-card/0.1.0" in route_source
+    assert "StockPlatformSharedUI.allowedPluginUris" in template
+    assert "stock-platform-plugin" in template
+    assert "external-tool-webcrumbs-grid" in css
     assert "尚未接入 proxy" in route_source
     assert "已由入口攔截" in route_source
     assert "AwoooI" not in route_source
diff --git a/web/static/css/page-external-tools.css b/web/static/css/page-external-tools.css
index b80416f..c769fff 100644
--- a/web/static/css/page-external-tools.css
+++ b/web/static/css/page-external-tools.css
@@ -6,6 +6,7 @@
 
 .external-tool-hero,
 .external-tool-panel,
+.external-tool-webcrumbs-preview,
 .external-tool-actions {
   background:
     radial-gradient(circle, rgba(45, 40, 32, 0.12) 1px, transparent 1.2px),
@@ -159,6 +160,32 @@
   padding: var(--momo-space-5, 24px);
 }
 
+.external-tool-webcrumbs-preview {
+  padding: var(--momo-space-5, 24px);
+}
+
+.external-tool-webcrumbs-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
+  gap: var(--momo-space-4, 16px);
+  align-items: stretch;
+  margin-top: var(--momo-space-4, 16px);
+}
+
+.external-tool-webcrumbs-plugin {
+  min-height: 176px;
+  padding: var(--momo-space-3, 12px);
+  background: var(--momo-bg-paper);
+  border: 1px solid var(--momo-border-subtle);
+  border-radius: var(--momo-radius-md, 6px);
+  overflow: hidden;
+}
+
+.external-tool-webcrumbs-plugin stock-platform-plugin {
+  display: block;
+  min-height: 152px;
+}
+
 .external-tool-section-title h2 {
   margin: var(--momo-space-2, 8px) 0 0;
   color: var(--momo-text-primary);
@@ -210,6 +237,7 @@
 
   .external-tool-checks,
   .external-tool-diagnostics,
+  .external-tool-webcrumbs-grid,
   .external-tool-action-grid {
     grid-template-columns: 1fr;
   }