Not so much a Lindy to share as a tip for testing your workflow:
Instead of using the "Test" button in the upper right, add a "Message Received" trigger
Go to "Tasks" start a new chat, and paste in an approximation of the input the Agent will receive at that step
I've been using this today to refine an agent and it has been an enormous speed-up. I've been moving this "Message Received" trigger all over the place within my Agent workflow to systematically tweak the steps.
Hope this helps someone else in my shoes!!