Question
You're tasked with a database migration on a live payments system: add a new column, backfill ~80M rows, dual-write during transition, then cut reads over — across a Postgres schema and the Go services that touch it. You have an AI agent that can write migrations, code, and scripts. Decompose this into agent-delegable steps versus human-owned steps, and place the verification/rollback gates.
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.