example skill challenge for 'against the giants'

[Cerebral Paladin]

I think the point is that the PCs are required to make the check every time they do something that could raise an alarm. If they get into a loud battle and kill off a sentry, and then just wander off without any effort to conceal the evidence, that should count as an automatic failure at best. At worst it would result in a full alert, N minutes later, when somebody happens upon the bloody corpse lying in plain sight.

Fair enough. I just didn't get a clear enough sense of when the PCs would need to make checks, so it felt like it was more of a "we try to do something" "roll to see if it hurts you" thing. As I said, I like the idea and think it could work, I'm just not sure the exact way it was described works well enough.