I Built an AI-Powered Interview Simulator That Runs Entirely in Your Terminal

#ai #node #npm #opensource

Interview prep is mostly passive.

You read through question lists, watch videos, or practice with a friend if you can find one. None of it feels particularly real.

So I built Interview Coach, a CLI tool that runs mock interviews, scores your answers, and gives you a breakdown of what you did well and where you fell short.

How it works

interview-coach start

Pick a role, an experience level, and how many questions you want. The interview starts immediately.

★ Question 1/5

Category: React
Difficulty: Medium

How would you optimise a React application experiencing unnecessary re-renders?

After each answer, you get:

A score
A verdict
Specific feedback
What a strong answer would have looked like

At the end, a full session report is generated.

It's not just for developers

The questions adapt to the role you choose. A few examples:

Content Writer — How would you rewrite a technical article for a non-technical audience?

Sales Executive — A prospect says your product is too expensive. How would you respond?

Teacher — How would you explain a difficult concept to students with different learning styles?

Same tool, any profession.

Under the hood

The stack is intentionally small: Node.js, Commander, Inquirer, Groq, Zod, Chalk, Ora, Boxen, Webpack.

Sessions are saved locally, so you can review past reports and track how you're improving over time. Nothing leaves your machine except the requests to generate questions and evaluate answers.