Question
You ask an AI to explain how this TypeScript data-sync function handles failures. The agent says: "It's robust — it retries each item, and any item that ultimately fails is logged and skipped so one bad record can't break the whole batch." You're about to depend on it for a financial reconciliation job. What does the explanation get wrong, and how do you verify the actual failure behavior?
async function sync(items: Item[]) { const results = await Promise.all( items.map(async (it) => { try { return await push(it); } catch (e) { return null; } }) ); return results.filter(Boolean);}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.