Vibe codingHardvc-g578

Subject Ai judgment limitsLevel Senior–Staff~20 minCommon in Code quality & review interviewsIndustries Software development

Question

A product manager asks you to have an AI agent build the money-math core of a new billing engine in Python: proration on mid-cycle plan changes, tax application, rounding to currency minor units, and credit-note generation. When would you NOT delegate this to the agent, and what makes AI the wrong tool for the load-bearing parts here?

What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.

Learn the concepts

Describe your solution

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.