From 2cf6de981376b28df1c0b46d861fb820a84aa534 Mon Sep 17 00:00:00 2001
From: cthomas <carenthomas@gmail.com>
Date: Wed, 11 Mar 2026 16:08:29 -0700
Subject: [PATCH] fix: update args fallback (#1357)

---
 src/agent/modify.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/agent/modify.ts b/src/agent/modify.ts
index 23ae0e0..e89283e 100644
--- a/src/agent/modify.ts
+++ b/src/agent/modify.ts
@@ -156,7 +156,12 @@ function buildModelSettings(
     settings = bedrockSettings;
   } else {
     // For BYOK/unknown providers, return generic settings with parallel_tool_calls
-    settings = {};
+    settings = {
+      parallel_tool_calls:
+        typeof updateArgs?.parallel_tool_calls === "boolean"
+          ? updateArgs.parallel_tool_calls
+          : true,
+    };
   }
 
   // Apply max_output_tokens only when provider_type is present and the value