From a09d452f6e960023676d1bd09e73945686f2c5de Mon Sep 17 00:00:00 2001
From: Kyrian Obikwelu <koshnawaza@gmail.com>
Date: Wed, 25 Jun 2025 05:27:02 +0100
Subject: [PATCH] fix: preserve empty properties as stdClass in
 Tool::fromArray()

---
 src/Tool.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Tool.php b/src/Tool.php
index ed3077e..ffa3731 100644
--- a/src/Tool.php
+++ b/src/Tool.php
@@ -67,7 +67,9 @@ public static function fromArray(array $data): static
         if (!isset($data['inputSchema']['type']) || $data['inputSchema']['type'] !== 'object') {
             throw new \InvalidArgumentException("Tool inputSchema must be of type 'object'.");
         }
-
+        if (isset($data['inputSchema']['properties']) && is_array($data['inputSchema']['properties']) && empty($data['inputSchema']['properties'])) {
+            $data['inputSchema']['properties'] = new \stdClass();
+        }
 
         return new static(
             name: $data['name'],