CHANGE LOG:
ADDED /crecipe book (crecipe.book). This will show a GUI of all of the recipes the player has permission to craft, including how to craft these recipes. Basically a little guide so it is easier to remember how to craft these custom recipes.
ADDED item-flag into the recipe files. A list of item-flags can be found here. This will allow you to hide attributes and more on any custom item you desire.
FIXED effects not working when the custom item was altered. Has been tested and resolved. Thank you for reporting this issue!

NO manual changes are needed. You will see the item-flag section appear in your recipe file upon restart. I have provided the link above for your convenience. If you encounter any issues or have any suggestions, please let me know!

Thank you.