I was surprised when I saw that Cursor added a feature to set the number of agents for a given prompt. I figured it might be a performance thing - fan out complex tasks across multiple agents that can work on the problem in parallel and get a combined solution. I was extremely disappointed when I realized it's just "repeat the same prompt to N separate agents, let each one take a shot and then pick a winner". Especially when some tasks can run for several minutes, rapidly burning through millions of tokens per agent.

At that point it's just rolling dice. If an agent goes so far off-script that its result is trash, I would expect that to mean I need to rework the instructions and context I gave it, not that I should try the same thing again and hope that entropy fixes it. But editing your prompt offline doesn't burn tokens, so it's not what makes them money.