Loading page
About this tool
Build mock-interview prompts by role, round and level, with a question count worked out from the real length of the slot.
Interview Prep Prompt Builder writes a roleplay prompt that makes an AI run a mock interview the way a real interviewer does: one question at a time, follow-ups scaled to the level, and a score against the rubric that round is assessed on. The number of questions is calculated from the slot, not guessed — five minutes goes to introductions, five to your own questions, and the rest is divided by the typical length of a question in that round at that level. Covers phone screens, coding, system design, behavioural, hiring manager, take-home review and final rounds.
Open Interview Prep Prompt Builder on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Question count comes from the minutes actually left after introductions and candidate questions.
Follow-up depth scales from one follow-up at entry level to reasoning-limit probing at staff level.
Each round carries its own four-to-five dimension rubric, scored 1-4 with evidence quoted.
Typically three to four. Allowing five minutes for introductions and five for your questions leaves 35 minutes, and a behavioural question with follow-ups runs about 8 minutes at mid level or 10 at senior — so three to four stories, not ten.
About 90 seconds to two minutes for the initial answer, then several minutes of follow-up. Across the whole question you will speak for roughly 60% of the slot; the rest is the interviewer asking, probing and taking notes.
It helps with the mechanical parts: saying the answer out loud, keeping to time, remembering the result and how it was measured, and not saying 'we' when asked what you did. It cannot tell you a company's real bar, and a score from a model is not a prediction of the outcome.
A phone screen is breadth: motivation, recent work, compensation and timeline, usually 30 minutes and fast. The hiring manager round is depth on scope and judgement — what you owned, what you decided and what you would do differently — and is the round that most often decides the offer.