diff --git a/frontend/src/app/workspace/agents/new/page.tsx b/frontend/src/app/workspace/agents/new/page.tsx
index a98fe8f9b..06f50c365 100644
--- a/frontend/src/app/workspace/agents/new/page.tsx
+++ b/frontend/src/app/workspace/agents/new/page.tsx
@@ -101,7 +101,7 @@ export default function NewAgentPage() {
 
   const threadId = useMemo(() => uuid(), []);
 
-  const [thread, sendMessage] = useThreadStream({
+  const { thread, sendMessage } = useThreadStream({
     threadId: step === "chat" ? threadId : undefined,
     context: {
       mode: "flash",
diff --git a/frontend/src/content/en/harness/tools.mdx b/frontend/src/content/en/harness/tools.mdx
index f9c3dd901..f9cf9a234 100644
--- a/frontend/src/content/en/harness/tools.mdx
+++ b/frontend/src/content/en/harness/tools.mdx
@@ -162,22 +162,34 @@ Install: `cd backend && uv add 'deerflow-harness[firecrawl]'`
 
 <Tabs items={["Jina AI (default)", "Exa", "InfoQuest", "Firecrawl"]}>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.jina_ai.tools:web_fetch_tool
-    api_key: $JINA_API_KEY # optional; anonymous usage has rate limits ```
-    Converts web pages to clean Markdown. Works without an API key at reduced
-    rate limits.
+```yaml
+tools:
+  - use: deerflow.community.jina_ai.tools:web_fetch_tool
+    api_key: $JINA_API_KEY # optional; anonymous usage has rate limits
+```
+Converts web pages to clean Markdown. Works without an API key at reduced rate
+limits.
   </Tabs.Tab>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.exa.tools:web_fetch_tool api_key:
-    $EXA_API_KEY ```
+```yaml
+tools:
+  - use: deerflow.community.exa.tools:web_fetch_tool
+    api_key: $EXA_API_KEY
+```
   </Tabs.Tab>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.infoquest.tools:web_fetch_tool
-    api_key: $INFOQUEST_API_KEY ```
+```yaml
+tools:
+  - use: deerflow.community.infoquest.tools:web_fetch_tool
+    api_key: $INFOQUEST_API_KEY
+```
   </Tabs.Tab>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.firecrawl.tools:web_fetch_tool
-    api_key: $FIRECRAWL_API_KEY ```
+```yaml
+tools:
+  - use: deerflow.community.firecrawl.tools:web_fetch_tool
+    api_key: $FIRECRAWL_API_KEY
+```
   </Tabs.Tab>
 </Tabs>
 
diff --git a/frontend/src/content/zh/harness/tools.mdx b/frontend/src/content/zh/harness/tools.mdx
index 1b25cc55b..954a1ad01 100644
--- a/frontend/src/content/zh/harness/tools.mdx
+++ b/frontend/src/content/zh/harness/tools.mdx
@@ -148,13 +148,19 @@ Firecrawl 驱动的搜索和爬取。需要 [Firecrawl](https://firecrawl.dev) A
 
 <Tabs items={["Jina AI（默认）", "Exa"]}>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.jina_ai.tools:web_fetch_tool
-    api_key: $JINA_API_KEY # 可选；匿名使用有速率限制 ``` 将网页转换为干净的
-    Markdown。无 API Key 也可使用，但有更严格的速率限制。
+```yaml
+tools:
+  - use: deerflow.community.jina_ai.tools:web_fetch_tool
+    api_key: $JINA_API_KEY # 可选；匿名使用有速率限制
+```
+将网页转换为干净的 Markdown。无 API Key 也可使用，但有更严格的速率限制。
   </Tabs.Tab>
   <Tabs.Tab>
-    ```yaml tools: - use: deerflow.community.exa.tools:web_fetch_tool api_key:
-    $EXA_API_KEY ```
+```yaml
+tools:
+  - use: deerflow.community.exa.tools:web_fetch_tool
+    api_key: $EXA_API_KEY
+```
   </Tabs.Tab>
 </Tabs>