Thanks to a post from The Artifact RPG, I’ve just realized something: I can use Vivid’s chase mechanics to model stealth attempts.
The problem with the way stealth is handled in most games – and that would’ve included Vivid before I read the post – is that it’s usually handled with a sudden-death kind of roll. Blow it once, and that’s it – you’re cover is blown too. So players were finding stealth an unviable approach, and abandoning it entirely – even the characters that ought to be stealthy by nature.
So, idea: sneaking around in Vivid will be handled as an Extended Contest, just like a chase or combat. Defeats along the way may be recovered from, unless you take enough that it becomes impossible to stay undetected.