Why Agent Ai Tool Node is not working?

Questions
1

I’m trying to connect a “agent ai tool” node like tool option for “agent ai” node, and when I run it I receive the following error:

Error details

Other info
Node type

@n8n/n8n-nodes-langchain.agentTool

Node version

2.2 (Latest)

n8n version

1.120.4 (Self Hosted)

Time

24/11/2025, 17:53:41

Stack trace

NodeOperationError: This model is not supported in 2.2 version of the Agent node. Please upgrade the Agent node to the latest version.

2

Hi @Marcelo_Amancio - can you try adding a new agent node to your workflow and replaces your agent node with that? There is a new version of the node and the easiest way to upgrade is to replace your current agent node with a new one you have added!