As far as I know, there is currently no way to verify if a player cheats and uses the +1 Energy buff in a No Buffs NG+ category. Although it is extremely unlikely, it is possible for a player's starter charm to have +1 Energy as a secondary effect, which gives the same effect legitimately. This happened to me once in 500 reset runs, and it saves a lot of time.
My proposed solution is to add to the rules that runs that start Battle 1 with +1 energy must either show the entire Buffs menu before the run, or they must show the starter charm in the charms list mid-run. It only takes 5 extra seconds to open the Buffs menu after each reset, and if the runner forgets to show it, they won't be punished unless their run starts with +1 energy.
Runs shorter than 30 minutes may be rejected for not showing the Strategy Bonus menu before the run.
This is because it's possible to get the same or similar effects from the starter charm as a sub effect which would be extremely easy to cheat if the menu is not shown, while not alienating new runn