From 7631cdb6d1c2f10761d4a3a0217b4a3a5410a5ec Mon Sep 17 00:00:00 2001
From: Justin Spahr-Summers <justin@anthropic.com>
Date: Mon, 11 Nov 2024 21:27:02 +0000
Subject: [PATCH] `CallToolResult.isError` should not be required

---
 src/types.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/types.ts b/src/types.ts
index 0ba6fa2f..ad097f95 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -719,7 +719,7 @@ export const CallToolResultSchema = ResultSchema.extend({
   content: z.array(
     z.union([TextContentSchema, ImageContentSchema, EmbeddedResourceSchema]),
   ),
-  isError: z.boolean().default(false),
+  isError: z.boolean().default(false).optional(),
 });
 
 /**