Build a project management tool with a 24-hour agent run

Ran a Cursor agent continuously for 24 hours to build a project management tool; the app fully works but is not production ready.

What They Did

The agent ran Sonnet 4.5 from the Cursor CLI in a continuous loop for 24 hours, receiving only the prompt "build a project management tool" and almost no upfront context. It tracked its own progress and iterated autonomously until it determined the task was complete. The human started the loop but added no further input during the run.

How It Went

The resulting app fully worked as a project management tool. It was not production ready, though the code structure and navigation proved better than expected.

Worth Knowing

Almost no initial context was supplied, showing how far a simple looped prompt can go on its own.