With Mage Initiate and Martial Adept, I was a little surprised there wasn't a rogue oriented version.
rough draft:
GUILD ENFORCER
You are skilled at striking unwary or distracted opponents. You gain the following benefits:
- If you already have sneak attack as an ability, you gain an extra die when you use sneak attack, otherwise, you gain the sneak attack ability and do d6 damage in addition to your normal weapon damage when your target is unaware of you or in mêlée with another enemy (see Sneak Attack on page 27 of the Basic Game for a description).
- You can take a bonus action to take the Dash, Disengage, or Hide action. Once you use this action, you may not use it again until you complete a short or long rest.
I'd tweak the language to be more exact. And I'd want feedback on balance. But that's my first take. An extra sneak attack die all of the time might be too powerful, but one sneak attack die every short or long rest seems too weak.
Thaumaturge.