> where all the rules are already documented

Defined testability.

> swarms of thousands of agents collaborating over weeks on software mega projects

If you have defined testability, running a single agent, in a loop, over a goal will achieve the same results.

> minting zero days, running cyber attacks ... Granted Claude has been really smooth, but still

The old adage about monkeys writing Shakespeare applies here. Agents are just better monkeys and if the goal has a well defined outcome it's fairly easy to "Brute force" the way to an answer.