diff --git a/src/server/routes/mcp_route.ts b/src/server/routes/mcp_route.ts
index 94fcf8c..47e0442 100644
--- a/src/server/routes/mcp_route.ts
+++ b/src/server/routes/mcp_route.ts
@@ -128,7 +128,7 @@ async function handleMCPRequestAsync(
                         content: [
                             isObject
                                 ? { type: "json", data: data }
-                                : { type: "text", text: String(data || result.data || result) },
+                                : { type: "text", text: JSON.stringify(data || result.data || result) },
                         ],
                     },
                 };