Ship the proof
Your project is not done when the prompt works once. It is done when another person can run the demo, understand the user task, and see evidence that you tested real cases.
What judges need
A reliable AI feature needs three things in the submission: a working flow, clear limits, and test proof. Keep it simple. A small feature that works is stronger than a large app with hidden failures.
Your demo should show one real user task. For example: summarize a hostel complaint, draft a UPI payment reminder, classify student helpdesk tickets, or extract fields from an invoice photo after OCR.