Bug Fixes, Use/Peel Actions, tools

KnowledgebaseTools has all of the knoeledgebase bugifexs (recipe success/failure, swapped ingredients...) but also the existence of the use action (not in use, but implemented) and a peel action that uses toolAttributes (for peeled) rather than the PeeledAttribute. Good middle step for the eventual integration of full blown tools.
It seems like the order here is backward. Loop through the contents and check if the tool can be used by it. Why does it care if they are necessary ingredients?