Show HN: AI interview coach I built at 17 after bombing my first interview (www.kelvai.com)

A new AI interview coaching tool named Kelv is set to launch in January 2026, designed to help candidates overcome the anxiety and poor performance often associated with job interviews. Developed by a 17-year-old entrepreneur after struggling with his own interview experiences, Kelv employs real-time voice analysis to provide personalized feedback on delivery aspects such as tone, pace, and use of filler words. The AI simulates a challenging interview environment, pushing users to respond to realistic prompts while offering immediate critiques, which enhances interview skills and builds confidence. This innovative approach addresses a significant pain point within the AI/ML community: the gap between technical qualifications and successful interview performance. As job applicants frequently receive vague feedback about their performance, Kelv aims to transform this by providing actionable insights derived from real interview scenarios. Users can track improvements in their communication clarity and confidence, with the system promising a measurable increase in performance through structured practice and immediate corrective feedback. By enabling users to craft concise, metric-backed narratives, Kelv positions itself as a game-changer for those preparing for high-stakes job interviews.