From a337af92bcbf7bd5edc69a3a627cf0cd50f5fa9c Mon Sep 17 00:00:00 2001
From: Waleed <walif6@gmail.com>
Date: Wed, 17 Dec 2025 23:38:36 -0800
Subject: [PATCH] fix(custom-tools): added missing _toolSchema to internal
 param set for agents calling custom tools (#2445)

---
 apps/sim/tools/index.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/apps/sim/tools/index.ts b/apps/sim/tools/index.ts
index 4061ecf1e3..34c242b3d9 100644
--- a/apps/sim/tools/index.ts
+++ b/apps/sim/tools/index.ts
@@ -766,6 +766,7 @@ function validateClientSideParams(
   // Internal parameters that should be excluded from validation
   const internalParamSet = new Set([
     '_context',
+    '_toolSchema',
     'workflowId',
     'envVars',
     'workflowVariables',