diff --git a/main.go b/main.go
index 64f3f728a288da96a53f6f3dd88d954506305d2b..5315d013438bf23648800d2af3a0828349b867ca 100644
--- a/main.go
+++ b/main.go
@@ -331,6 +331,7 @@ func handleCreateTask(
 
 	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
 		respBody, _ := io.ReadAll(resp.Body)
+		log.Printf("Lunatask API error (status %d): %s", resp.StatusCode, string(respBody))
 		return &mcp.CallToolResult{
 			IsError: true,
 			Content: []mcp.Content{mcp.TextContent{Type: "text", Text: fmt.Sprintf("API error (status %d): %s", resp.StatusCode, string(respBody))}},
@@ -353,7 +354,7 @@ func handleCreateTask(
 		Content: []mcp.Content{
 			mcp.TextContent{
 				Type: "text",
-				Text: fmt.Sprint("Task created successfully.", response.Task.ID),
+				Text: fmt.Sprintf("Task created successfully with ID: %s", response.Task.ID),
 			},
 		},
 	}, nil
@@ -375,7 +376,7 @@ func createDefaultConfigFile(configPath string) {
 			}},
 		}},
 	}
-	file, err := os.Create(configPath)
+	file, err := os.OpenFile(configPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o600)
 	if err != nil {
 		log.Fatalf("Failed to create default config at %s: %v", configPath, err)
 	}