From f30cc7b6cfba6998091f31fcd3012a971b3a2bb8 Mon Sep 17 00:00:00 2001
From: RomanDavydchuk <roman.davydchuk@n8n.io>
Date: Wed, 23 Jul 2025 20:43:13 +0300
Subject: [PATCH] fix(Google Gemini Node): Error when used as tool with
 "Message a model" operation (#17491)

---
 .../nodes/vendors/GoogleGemini/GoogleGemini.node.test.ts     | 1 +
 .../vendors/GoogleGemini/actions/text/message.operation.ts   | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/GoogleGemini.node.test.ts b/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/GoogleGemini.node.test.ts
index f75b72ef9d..d3a441d07d 100644
--- a/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/GoogleGemini.node.test.ts
+++ b/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/GoogleGemini.node.test.ts
@@ -51,6 +51,7 @@ describe('GoogleGemini Node', () => {
 						return undefined;
 				}
 			});
+			executeFunctionsMock.getNodeInputs.mockReturnValue([{ type: 'main' }, { type: 'ai_tool' }]);
 			getConnectedToolsMock.mockResolvedValue([]);
 			apiRequestMock.mockResolvedValue({
 				candidates: [
diff --git a/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/text/message.operation.ts b/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/text/message.operation.ts
index b2bb01547e..c86efaed37 100644
--- a/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/text/message.operation.ts
+++ b/packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/text/message.operation.ts
@@ -236,7 +236,10 @@ export async function execute(this: IExecuteFunctions, i: number): Promise<INode
 		responseMimeType: jsonOutput ? 'application/json' : undefined,
 	};
 
-	const availableTools = await getConnectedTools(this, true);
+	const nodeInputs = this.getNodeInputs();
+	const availableTools = nodeInputs.some((i) => i.type === 'ai_tool')
+		? await getConnectedTools(this, true)
+		: [];
 	const tools: Tool[] = [
 		{
 			functionDeclarations: availableTools.map((t) => ({