I can't figure out what the custom rules example does

[azeghers]

Documented list of all injectable services?

Unfortunately, there is no such list currently. We plan to list all services and events (as far as possible) with our upcoming documentation. So far we have no time plan to release it.

Is there a specific behavior you want to listen to, or were you looking to see all of them?
Because, no, we don’t have an exhaustive list yet.