Send transactional email · prompt 5 · Claude Code · week 2026-W44

Claude Code built it and installed nothing

Prompt: Set up email notifications (order confirmation) for this Next.js app using a hosted email API.

Grader: Agent wired Resend's REST API directly with fetch, adding no vendor npm package, plus a server-only module, an order-confirmation template, and a POST /api/orders route; the build passed, but no real email was sent because RESEND_API_KEY was not set.

Replay of the real agent session in an isolated sandbox. Tool output is truncated for readability.