I'm running an agent in n8n that simply needs to choose between 8 different tools. I was using gpt-4o-mini but getting inconsistent results. I've changed to gpt-4-turbo and the results are much better. However, it outputs the tool name as json, instead of actually calling the tool, something like ``` [ { "output": "sendEmailTool" } ] ``` Any ideas on how to make it actually call the tools? It's a tools agent and with gpt-4o-mini the tools were being called (although not all of the time).