I think as a starting point it's best to assume the special forces approach and work your way down to the grunt approach as necessary.

This is entirely based on my personal dislike for being micro-managed.

I feel like that's a good way of accidentally telling folks the wrong thing and never knowing.

I've certainly worked with a lot of folks who detailed "do this" and when done we discovered it is "to achieve this goal" ... that late bit of info proved the thing we did was not as useful or would need more work later.