Hi @tombruijn, thank you for checking in here, and thank you for supporting Hanami! 
Your work in improving the APM integration looks great! I’d love for us to help you out by getting the action name into the rack environment.
I’ve just created this issue here to remind us: Add action name to Rack environment · Issue #445 · hanami/controller · GitHub
Right now we’re focused on preparing Hanami 2.2 for release, which mostly has us modifying other parts of the framework. If we find a chance to sneak this in before 2.2, that’d be a nice bonus, but otherwise I make sure we take care of this in whatever release comes next.
(And to any hopeful contributors reading this, I’d welcome PRs to take care of this!)
Thanks again for bringing this to our attention, Tom, and if there’s anything we can ever do to help AppSignal with Hanami, you know where to find us! 