Skyscrapers & ... Groundscrapers? (OOC)

OK will roll in RP.

Here is a sample of wonder twin power

Well done. A 10!

Describe it. It's your cage.

Are you 'taking aim', or are you attacking?

If you are attacking, then describe what you do, how you attack, if you hope to achieve anything special beside just doing damage. Then roll your attack, which is probably +Prowess but the dice used always depend on what you are actually doing in the fiction.
Attacking is a pretty basic move in an RPG, so it follows a generally similar pattern. As the example in the rules [ref] say: "a 10+ means the PC does harm, a 6- means the monster does harm, and a 7-9 means they both do harm", though this is not a toe-to-toe fight, so they might not 'do harm' and might instead 'find a way in' or something (ranged fights are almost always to your advantage).

If you are taking time to 'aim carefully' that could set you up to respond quickly to any change in circumstance, or give you a bonus to an attack, but I am not convinced a roll to aim for a 1+ (on a 10+, or even a 2+ on a 12+) is worth letting the enemy take the lead in dictating the action. Rolling is risky. If you are 'coordinating with your partners' then cool, we can see what they do and slot your action into theirs.

That seemed like the kind of action that would invariably call for a roll, so I went ahead.

Techi, like Arcane, can completely change the way things are, and usually it takes time. If you can finish this 4-segment Clock, you can repel the centipedes, and have a solution (get it?) for them going forward as well.

On a 7-9 the clock ticks once, but you have a complication [ref]. Or you can choose to not tick and avoid (or easily dispatch) the complication.
On a 10+ the clock ticks twice, but you still have a complication, you are in the middle of a fight, after all. You can choose to forego one tick of the clock to avoid (or easily dispatch) the complication.
On a 12+ you tick the clock thrice. Technically the rules above for complications still apply (†).
On a 6- things go wrong and you risk losing the concoction. We will see if something can be done to save it once you have dealt with the immediate danger.

((†) If you have the chance you would be foolish to do anything other than complete the task and repel the bugs.:)

Ok well Fiona is going to become fixated on her science and will likely ignore complications as much as possible. Until she can’t! Lol.

Indeed. Your 12 there is why you can stomp the gritter in one go if Herman holds it still. If not then we will need to roll for damage —though with some bonus for the 'crit'— and hope.
We have gone a bit past there. :)

But, if you can deal with the current crisis, you will have time to administer anti-venoms.