Vibe codingHardvc-g237

Subject Ai verificationLevel Senior–Staff~20 minCommon in Networking & APIs interviewsIndustries Telecom, Software development

Question

An AI agent 'tidied up' a gRPC service's `.proto` files and the generated Go server, claiming it only 'reorganized fields and improved comments.' Your service has many downstream consumers on older clients. How do you verify the agent didn't make a wire-incompatible change, and what specific edits would be the silent killers 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.