PlayerAdvancement

The PlayerAdvancement Event is fired whenever a player crafts something in the anvil.
You can change the chance that the anvil is damaged.

Event Class

You will need to cast the event in the function header as this class:
crafttweaker.event.PlayerAdvancementEvent
You can, of course, also import the class before and use that name then.

Event interface extensions

PlayerAdvancement Events implement the following interfaces and are able to call all of their methods/getters/setters as well:

ZenGetters

The following information can be retrieved from the event:

ZenGetter Return Type
id string

Id

Apart from the functionality the PE exposes you can get the advancement’s ID as string.

This can for example be a string like

"minecraft:story/mine_diamond"