To answer your question you should be extremely safe, I'd be surprised if you got banned. Even if your bot failed a random you wouldn't get banned I think
Edit: Mainftw is right
I recommend you alch at Soul Wars, right in front of the bank chest.
Reason? It is pretty much impossible to get banned there because there is always like 10+ people there autoing, and also Soul Wars is an area where there are no randoms.
I've been running RiD's firemaking bot in POH in build mode from 89-99 fm on my main. and 50-95 firemaking on a friend's account that I'm hosting his RiD bot on for, and I haven't received a single random during my 150+ hours botted there. I've used used the Construction bot in build mode all the way to 99 without a single random.
So, TL;DR, there are no randoms in your POH in building mode.
I think its just certain tasks only. For example I 've gotten atleast 5 randoms from 60-85 magic training teletabs on poh in build mode. Aswell as when I was making rock walls, and tables
Because when you have fire, you have items on the floor. I don't think jagex would teleport you away and make you use your crafts.
I've alched in my PoH, & I've alched in SW. Either one works fine, although in Soul Wars I like being able to control, "when do I need an exp lamp for a skill?"
Edit:
I did 99 crafting in Soul Wars, so I mean there is always that suggestion.
if you have an autoclicker, then make sure you have the bot set to randomly clicking stead of having it click the same placed over and over like an autoalcher.
Thanks for all of the replies. Another quick question. What skills are "bottable" in your POH? I know you can do construction, fm, alch, did I miss any others?
You can fletch, cook etc in there if you really wanted to although it wouldn't be a good idea considering banking, teleporting there just to fletch then teleport back to bank. With that being said FM really isn't that great either, just bot at w100 shantay pass.