Code Room
Vibe codingHardvc-g575
Subject Ai judgment limitsLevel Senior–Staff~22 minCommon in Concurrency interviewsIndustries Software development, Technology

Question

A teammate proposes letting an AI agent write the core of a new Go distributed rate limiter — a token-bucket implementation shared across many goroutines and backed by Redis for cross-instance coordination, with a local fallback when Redis is unreachable. When would you NOT lean on the agent for this, and what failure modes make it the wrong tool for the load-bearing parts?

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.

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.