From a6d0e29ebae5d44b37849b77a96beb7b2f5a58eb Mon Sep 17 00:00:00 2001
From: Tv <tv@eagain.net>
Date: Thu, 19 Mar 2026 21:04:45 +0000
Subject: [PATCH] fix(openresponses): do not omit required field
 ORItemParam.Arguments (#9074)

See #9047
---
 core/schema/openresponses.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/schema/openresponses.go b/core/schema/openresponses.go
index 09f8360bd..507c1b333 100644
--- a/core/schema/openresponses.go
+++ b/core/schema/openresponses.go
@@ -96,7 +96,7 @@ type ORItemParam struct {
 	// Function call fields
 	CallID    string `json:"call_id,omitempty"`
 	Name      string `json:"name,omitempty"`
-	Arguments string `json:"arguments,omitempty"`
+	Arguments string `json:"arguments"`
 
 	// Function call output fields
 	Output interface{} `json:"output,omitempty"` // string or []ORContentPart