diff --git a/src/agents/tool-display-config.ts b/src/agents/tool-display-config.ts
index f6c6f08b6ac..844faf45e78 100644
--- a/src/agents/tool-display-config.ts
+++ b/src/agents/tool-display-config.ts
@@ -569,3 +569,9 @@ export const TOOL_DISPLAY_CONFIG: ToolDisplayConfig = {
     },
   },
 };
+
+export function serializeToolDisplayConfig(
+  config: ToolDisplayConfig = TOOL_DISPLAY_CONFIG,
+): string {
+  return `${JSON.stringify(config, null, 2)}\n`;
+}