Why ChatGPT Fails as an Interview Tutor (And How I Built a Better One with Claude Code)

guanyi liu Posted on May 30 Why ChatGPT Fails as an Interview Tutor (And How I Built a Better One with Claude Code) # opensource # tutorial # programming ChatGPT Always Says "Great!", But I Remember Nothing — I Built a Real Interview Teacher with Claude Code A Universal Pain Point When you use ChatGPT / Claude to prepare for interviews, have you ever encountered this situation: You gave an obviously flawed answer, and it replied "Great answer!" then moved straight to the next question. Every time you start a new conversation, it doesn't remember what you learned yesterday, so you have to introduce yourself from scratch. You've memorized a bunch of standard answers, but you don't know when to review them, and forget everything after a couple of days. It explains a concept to you, and you feel like you understand it after reading, but during an interview, you can't articulate it. The root cause is simple: ChatGPT is an attentive chat companion, not a strict teacher. Its working principle is "make the user satisfied," not "make the user learn." It thinks everything you say is great because it's afraid you'll be unhappy. Is There a Way to Make AI a Strict Teacher? Yes. I did it using Claude Code (Anthropic's CLI coding tool). Claude Code has a unique capability: Rule files (CLAUDE.md) + Persistent memory system . In simple terms, you can "program" the AI's behavior by writing rule files, and these rules are automatically loaded in every conversation. I applied this capability to interview preparation. What I Did I wrote a set of configuration files, with two core components: 1. Strict Learning Process (rules/interview.md) Rules: 1. Mixed question sets (3-4 modules, not just one direction) 2. Correct answer → Brief confirmation + Related knowledge points → Next question 3. Wrong answer → Must explain (including reference URLs) → Verification question → New question only after passing 4. No skipping steps. Cannot ask the next question immediately after an answer. Enter fu