AI agents are getting weirdly good at doing work.

Ask Claude, ChatGPT, Cursor, or any coding agent to “make me an invoice PDF,” and it will usually try. It might write Python with ReportLab. It might generate HTML and CSS. It might spin up Playwright. It might patch a few layout bugs, retry the render, and eventually hand you a PDF.

At first, that feels magical.

Then you ask it to do the same thing again tomorrow.

And it rebuilds the whole thing from scratch.