Are you explicitly on the hook for compliance with the energy code or specifying it? Not unless your contract says you're going to do it.
Is it wise to show an energy heel on a truss that will actually work with at least one kind of insulation for the energy code? Sure. But you don't actually have another discipline to coordinate with, but yeah, provide a heel depth, and maybe mark it "G.C./Owner confirm heel depth with truss supplier for energy code requirements and air flow/ventilation."
Wall thickness (studs) plays into energy code as well, most of what I see uses 2x6 to get adequate depth for the batt insulation, but will a typical engineer's wall detail show exterior continuous insulation on a house? That I don't know.
As to roof slope? I wouldn't design a roof with a 1/12 pitch and put shingles in the dead load calculation, because that slope doesn't work with shingles. Could you put "3"/ft. min roof slope"? Sure. "Roof slope per manufacturer installation requirements"? I suppose, but a low slope roof to me suggests a need for a different detail than a detail that shows a steep slope. Do you show ice barrier and how far it needs to extend? Flashing? You could, you could also mention it, not dimension it, and add notes that some of the items you've shown are not designed by you somehow.
If you design a roof for sprinkler load and 2 5/8" layers of gypsum board does that mean you're designing a fire-rated assembly and practicing architecture? I don't really agree with that.
But what if you design a flat roof for ballasted EPDM and they put on single ply fully adhered and the roof uplift is more than the truss clip you provided?
If you graphically show a flat roof and don't note the minimum 1/2" per foot slope needed for typical low-slope roof did you make a mistake?
A few states have rules on incidental practice of architecture and incidental practice of engineering, but I can't say which ones they are, offhand.
There's a difference between showing stuff on a drawing, saying "G.C./Owner verify" or "energy code compliance shall be confirmed by a qualified professional" or some other language, and showing an ADA ramp with turning circles and landings and egress path distance calculations and occupancy loads and selecting type of construction and door widths and daylight requirements, etc., etc., etc.
I think a lot engineers are comfortable showing quite a few things on their details they did not design, particularly when there's an architect involved, and I don't see a huge case for having two sets of details, one of which shows basically nothing and another that shows a ton of things and notes "see Arch" on all of them.
Now, I've seen a fair number of structural drawings that DON'T show gypsum board, and I really dislike that. First off, the gypsum board generally a) contributes to structural strength, braces studs, stabilizes roof truss bottom chords in uplift, etc. b) demonstrates you know it's there, so you probably accounted for the weight in your design, c) it's going to be there, why not show it? Another reason to show it is I've gotten a lot of projects where the structural drawings survive, but the architectural drawings are long gone. I'm not going to find a fire rated assembly on a structural drawing, but 2 layers of 5/8" gypsum on a ceiling and a callout for a sprinkler to me suggests that it's a fire-rated assembly and it should be approached as such in any repairs.
Yeah, this post is maybe too long. Sorry.