Update app.py

app.py

@@ -93,11 +93,8 @@ async def fetch_github_trending() -> List[Dict]:
             detail="Failed to fetch trending repositories"
         )
 
-# 初始化 MCP 服务器
-mcp_server = FastMCP(
-    name="GitHubTrendingAPI",
-    description="Access GitHub trending repositories"
-)
+# 初始化 MCP 服务器 - 移除了 description 参数
+mcp_server = FastMCP(name="GitHubTrendingAPI")
 
 @mcp_server.tool()
 async def get_trending_repos(num: int = 10) -> dict:
@@ -147,7 +144,7 @@ async def stream_trending(interval: int = 60, client_id: str = None):
                 
                 data = {
                     "trending": cached_trending[:10],
-                    "last_updated": last_updated.isoformat(),
+                    "last_updated": last_updated.isoformat() if last_updated else None,
                     "client_id": client_id,
                     "next_update": (datetime.now() + timedelta(seconds=interval)).isoformat()
                 }