From 11d81884158f5335680e4fdf7d90b5eaca057571 Mon Sep 17 00:00:00 2001
From: Waleed <walif6@gmail.com>
Date: Wed, 3 Sep 2025 08:16:50 -0700
Subject: [PATCH] fix(rce): always use VM over RCE for custom tools (#1233)

---
 apps/sim/app/api/function/execute/route.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/apps/sim/app/api/function/execute/route.ts b/apps/sim/app/api/function/execute/route.ts
index a943417c8..bdfa67d39 100644
--- a/apps/sim/app/api/function/execute/route.ts
+++ b/apps/sim/app/api/function/execute/route.ts
@@ -585,6 +585,7 @@ export async function POST(req: NextRequest) {
     const useE2B =
       e2bEnabled &&
       !useLocalVM &&
+      !isCustomTool &&
       (lang === CodeLanguage.JavaScript || lang === CodeLanguage.Python)
 
     if (useE2B) {