Evaluate tool usage accuracy in multi-agent AI workflows using evaluation nodes

Who's it for ------------

This workflow is ideal for AI developers running multi-agent systems in n8n who need to quantitatively evaluate tool usage behavior. If you're building autonomous agents and want to verify their decisions against ground-truth expectations, this workflow gives you plug-and-play observability.

What it does ------------

This template uses n8n's built-in Evaluation Trigger and Evaluation nodes to assess whether an AI agent correctly used all the expected tools. It supports:

- Dataset-driven testing of agent behavior

- Logging actual tools to compare them with the expected tools

- Assigning performance metrics (toolcalled = true/false)

- Persisting output back to Google Sheets for further debugging