Designing an AI That Remembers: How We Built a Coding Mentor with a "Human" Memory

The Sunday Afternoon Epiphany We’ve all been there. You’re sitting in your room, staring at a LeetCode problem you know you’ve solved before. You remember seeing the "Success" banner two weeks ago. But today? The logic is gone. You’re making the same off-by-one error, the same null-pointer mistake, and feeling that same rising tide of frustration. As a researcher for Team HACKONAUT, I spent a lot of time talking to fellow engineering students here in Bengaluru. The feedback was universal: Coding platforms are brilliant at testing us, but they are terrible at teaching us. They suffer from what I call "Context Amnesia." You are a different person every time you log in, but the platform treats you like a stranger. This is the gap we set out to bridge. We didn't just want to build another compiler; we wanted to build a mentor that actually grows with you. The Research: Why Beginners Hit the "Plateau" Before a single line of code was written, I dove into the "why." Why do smart students giv