Show HN: AI feedback on system design diagrams
Hacker News - AI
Aug 9, 2025 07:45
gpe
1 views
hackernewsaidiscussion
Summary
A new tool has been developed that uses AI (specifically Gemini) to provide feedback on system design diagrams for technical interview practice, offering a free, accessible alternative to traditional resources like books and mock interviews. By leveraging AI to assess user submissions, the tool demonstrates how large language models can support personalized learning and skill development in technical fields. This approach highlights the growing role of AI in democratizing interview preparation and technical education.
Hey everyone, I made a tool to practice System Design for technical interviews. I am currently practicing System Design interviews and honestly this is not my forte. Since I am also trying to keep my programming skills sharp and get more products to show off in my portfolio, I thought maybe I could implement a tool that would help people practice this kind of interview as well. It seems most of people preparing for such interviews are using: * videos of recorded practice interviews * books (especially Designing Data-Intensive Applications) * mock interviews with FAANG engineers ($$) The goal of this tool is to provide a whiteboard to the user, then use AI (Gemini) to assess the user submission with respect to some metadata about the problem that guide the LLM about what a good solution should look like. Not selling anything, there is no paywall, no login, not asking for email etc. For now, I'm just trying to see if someone else finds this useful, and if this idea got legs. If it doesn'
