Clever on Nostr: I considered using on a project, but felt it lacks some very important documentation, ...

I considered using on a project, but felt it lacks some very important documentation, like what happens when a node tries to communicate directly with another one (instead of routing through many more) and fails? Will it keep trying in the future? Will it not? Is there a limit for retries? Is there a timeout? How can I configure the timeout? Can I disable this behavior? Etc.