I think adding an instruction (a code's line) just as a comment is a really good idea ; eg. for people with attention deficit disorder, like me :D
it would be useful to make the bot's code clearer and to see easily which bot, or part of its code, is not updated. Especially if your bot has to do a lot of things
I'll see it without "time cost", without "charge cost", with a unique color (gray?) to distinguish it from other instructions. If its content is pretty long, don't cut it too short and show it fully when we hover over it, (sadly, unlike <Shout>)