Question
You need a read-through cache layer in Go in front of a slow database read, backed by Redis, with TTL and protection against cache stampedes. You'll have an AI agent build the `GetOrLoad(key, loader)` primitive. Write the prompt/spec — constraints, edge cases, acceptance criteria — for a first-try-correct result. What does a naive prompt ("add a Redis cache with a TTL") get wrong under real traffic?
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.
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.