Hnng, my sides. Oh well, I eventually killed the overgrown locust. First I had to send my bowkobold after it, who shot it half to death with wooden arrows and ineffectually bopped at it with a bow. So I had to cancel the kill order, order some stone arrows, left him restock, and order up round two.
Amazingly the giant grasshopper was content to limp off and ignore the kobolds further.
And in belated response to earlier...yeah, normally-produced metal bars have a product dimension of 150, player-crafted metal bars have a product dimension of 1, while the adventurer reactions only use 1 unit of metal. I've tried make it use the require 150 units of metal, and in the case of adventure mode reactions seems to interpret that request as 150 separate bars, draining a single unit from each. :V