Even today, an advanced AI model will realize exactly what you said, and generate a script and run it behind your back to save the costs and ensure correctness. To me, that's still using the agent directly, not vibe coding. No app gets developed in the process, and if the agent doesn't tell you, you won't even know any coding took place.
With the caveat that literal today's models are not allowed to run code themselves but instead give you the code in the chat window and ask you to run it yourself for security and safety reasons. But the capability is there.
Right, which makes the one-shot task cost the same as the permanent solution in that case. So if you wanted to do this task even twice, you would still be better off creating the tool once and just using it. Imagine if proof assistants like Lean didn't exist. Research with AI would get a whole lot more expensive if it had to re-create Lean every single time you asked it to prove something.