Built an AI Coding Mentor That Never Forgets Your Mistakes

There is a moment every CS student knows. You open LeetCode. You submit a binary search solution. It fails. You read the feedback — "wrong answer" — and you fix it. Two weeks later, you make the exact same mistake again. The platform has no idea. It treats you like a complete stranger. I got tired of that. So I built TraceX. The Problem With Every Coding Platform Today LeetCode, HackerRank, CodeChef — they are all built around the same assumption. Every session is a fresh start. There is no memory of who you are, what you have struggled with, or what patterns keep tripping you up. This is not just an inconvenience. It is a fundamental design flaw. Real learning does not happen in isolated sessions. It happens through repetition, pattern recognition, and personalized feedback over time. A human mentor would never forget that you made the same off-by-one error three times. But every AI coding tool does — because they have no memory. That is the problem TraceX solves. What is TraceX? Trac