I Built an AI Chatbot That Knows Everything About Me

My portfolio site has project pages, work experience entries, and blog posts, all written as MDX files. When someone visits, they usually have a specific question: "Has this person worked with React?" or "What's their most recent project?" The answer is somewhere on the site, but finding it means clicking through pages and scanning project cards. I wanted visitors to be able to just ask. Not a FAQ page with canned answers, but something that reads the actual content on the site and answers questions from it. Why Not Just Feed It Everything? Your first thought might be: take all the content, send it to a language model like GPT-4o or Claude, and let it answer questions. This works for short content. But language models hallucinate. Ask about a technology you never mentioned, and the model might confidently say "yes, they have 3 years of experience with that" because it sounds plausible. There's also a scale problem. My site has around 30 content files. Sending all of them as context eve