From fb277672b5a68c889518bf7984ac268760bc5c60 Mon Sep 17 00:00:00 2001
From: Lukas Schaefer <lukas@lschaefer.xyz>
Date: Fri, 25 Jul 2025 13:49:18 -0400
Subject: [PATCH] Empty argument gets encoded as [] instead of {}

Signed-off-by: Lukas Schaefer <lukas@lschaefer.xyz>
---
 lib/Service/OpenAiAPIService.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/Service/OpenAiAPIService.php b/lib/Service/OpenAiAPIService.php
index 14208d9d..e124eef5 100644
--- a/lib/Service/OpenAiAPIService.php
+++ b/lib/Service/OpenAiAPIService.php
@@ -487,6 +487,9 @@ public function createChatCompletion(
 							'function' => $toolCall,
 						];
 						$formattedToolCall['function']['arguments'] = json_encode($toolCall['args']);
+						if ($formattedToolCall['function']['arguments'] === '[]') {
+							$formattedToolCall['function']['arguments'] = '{}';
+						}
 						unset($formattedToolCall['function']['id']);
 						unset($formattedToolCall['function']['args']);
 						unset($formattedToolCall['function']['type']);