Prompts were:

Go through each Lean file, and check if any import statements can be removed, preserving the success of lake build.

Yeah, you didn't do a thorough job, as I can see import Init.Data.List.Basic in Constprop is still removable. Don't tell me you're done until you've checked every remaining import can not be removed without creating an error.

Still not quite there, I don't believe import Init.WF can be essential.

Woah, your response to me pointing out a mistake should not be to fix it and conclude you're done, but to assume that there are many more mistakes.

So not that great overall. Notable is that the agent did go off and install elan on its own initiative, and all the build work happened on Cursor's machines.