From ab91420826b4e4f07479f5cd4a6d9c7b14b9e7ee Mon Sep 17 00:00:00 2001
From: Aniket Kumar <86551851+aniketkrs@users.noreply.github.com>
Date: Sun, 27 Sep 2026 09:32:48 +0530
Subject: [PATCH] fix: map type(None) to null in kernel JSON schema builder

---
 python/semantic_kernel/schema/kernel_json_schema_builder.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/python/semantic_kernel/schema/kernel_json_schema_builder.py b/python/semantic_kernel/schema/kernel_json_schema_builder.py
index 5ec519b5b377..ec8dc5bb4cc5 100644
--- a/python/semantic_kernel/schema/kernel_json_schema_builder.py
+++ b/python/semantic_kernel/schema/kernel_json_schema_builder.py
@@ -18,6 +18,7 @@
     dict: "object",
     set: "array",
     tuple: "array",
+    type(None): "null",
     "int": "integer",
     "str": "string",
     "bool": "boolean",