interview-prep

An agent skill that turns a job description into realistic interview practice for software engineers.

Built for backend, frontend, full-stack, data and infrastructure roles. The role profile and behavioural round work for any posting, but the technical rounds, curveballs and take-home are written for engineering interviews. Support for delivery, product and engineering management roles is planned.

Paste a job posting and get:

• A role profile. Seniority, stack, domain, and what the posting is signalling the team cares about.
• Question sets per round. Recruiter screen, technical, system design, behavioural. Each question says why they ask it, what a strong answer covers, and the follow-ups a real interviewer would use.
• A live mock interview. One question at a time, honest scoring against the target level, feedback after each answer, and a written summary of what to work on.
• A take-home tech test. A real scaffolded repo in the stack from the posting, with a brief that reads like a company sent it, a hidden rubric, and a panel-style review when you are done.
• Curveballs. Deliberately tricky questions of the kind real interviewers use: code whose output surprises, a design with one real flaw, questions where the obvious answer is wrong or where you should ask before answering.
• Topic drills. No posting handy? "Quiz me on caching, senior level" works too.
• Progress tracking. Weak areas carry over so the next session targets them.

Ask for "3 interviews" and it generates three rounds that build on each other.

Why a skill and not a website

The question-generator part exists as dozens of free web tools. What they cannot do is create a real project on your machine, review your actual code, or remember what you got wrong last week. A skill runs inside your coding agent, uses your own model, and has a filesystem.

Install

The quickest way, for any agent the skills CLI supports:

npx skills add Bravilogy/interview-prep

Add -g to install it for every project rather than just the current one.

Claude Code, by hand

git clone https://github.com/Bravilogy/interview-prep ~/.claude/skills/interview-prep-repo
ln -s ~/.claude/skills/interview-prep-repo/interview-prep ~/.claude/skills/interview-prep

Or copy the interview-prep/ folder into .claude/skills/ in any project.

Other agents

The skill is a folder with a SKILL.md and a references/ directory, following the open agent skills format. Copy interview-prep/ into wherever your agent loads skills from.

Usage

Paste a job description and say what you want:

Here's a JD for a senior backend role at Acme. Give me the questions they'd ask.

<job description> — interview me for this, technical round.

Generate a take-home test for this role and I'll do it tonight.

Run me through 3 interviews for this posting.

Drill me on system design for a senior backend role, tricky questions welcome.

Everything is written to interview-prep/<company-role>/ in your current directory.

Layout

interview-prep/
├── SKILL.md                  workflow and principles
└── references/
    ├── rounds.md             how to write each round type, seniority calibration
    ├── scoring.md            running a mock, scoring, end-of-round summary
    └── take-home.md          designing, scaffolding and reviewing a take-home

License

MIT