I short of remember we once discussed this with @Seldaek and decided it's no use to document all handlers and their settings: It's very likely to get outdated.

So I'm against documenting all monolog handlers, but we can add a short section about handlers that are provided by Symfony.

I create the issue mostly because of the recipe that I linked that adds a message about text formatting in the console logs. IMO if such handler has at least an example in a recipe (which is official stuff), maybe it should be documented?

I agree with Wouter, this is the kind of documentation that is hard to maintain and keep it in sync with the code (hopefully the code includes PHPdoc annotations to describe its functionality and config options).

Moreover, even if Monolog is closely related to Symfony, it's a third-party project, so its doc is out of the scope of Symfony Docs. Sorry! ... and thanks for understanding!