From 9d1a3c1414bfbfad8a47f7115fc87a4cb46aefab Mon Sep 17 00:00:00 2001
From: Ari Webb <ari@letta.com>
Date: Thu, 18 Dec 2025 16:00:19 -0800
Subject: [PATCH] chore: disable parallel_tool_calls byok (#308)

---
 src/agent/modify.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/agent/modify.ts b/src/agent/modify.ts
index 5035b4b..dce4cd9 100644
--- a/src/agent/modify.ts
+++ b/src/agent/modify.ts
@@ -98,7 +98,7 @@ function buildModelSettings(
     settings = googleVertexSettings;
   } else {
     // For BYOK/unknown providers, return generic settings with parallel_tool_calls
-    settings = { parallel_tool_calls: true };
+    settings = {};
   }
 
   // Apply max_output_tokens for all providers if specified