Vibe codingMediumvc-g582

Subject Ai judgment limitsLevel Mid–Senior~16 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

A teammate wants an AI agent to generate a regex-based parser to extract structured fields (sender, recipients, subject, attachments) from raw RFC 5322 email headers in Python. When would you stop the agent and not use it for this, and what failure modes make regex-from-AI the wrong approach 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.