Hello, I'm trying to switc from JS to Go

Hello, I'm trying to switc from JS to Go runtime, but I can't make it work.
most of the time I'm getting errors similar like this

error calling tool analyticsAgent: invalid output: data did not match expected schema:

error calling tool analyticsAgent: invalid output: data did not match expected schema:

error calling tool analyticsAgent: invalid output: data did not match expected schema:

error calling tool analyticsAgent: invalid output: data did not match expected schema:

Prompts are same as in JS code.

What could be wrong? I'll provide code inside thread