No Detail Is Too Detailed
Do not leave room for interpretations when doing the wireframes. Saying ‘they should know this thing, it’s common’ might get you into unnecessary argument and trouble later. Do not assume. Create a near-pixel-perfect wireframes. Put notes everywhere, especially when there’s an interaction on the page. It helps when the visual designer beautify the wireframes, and it even more helpful when the dev team build the site/app. We can always make sure that we’re on the right track by referring to the detail wireframes.
No detail is too detailed.