Send transactional email · prompt 2 · Claude Code · week 2026-W44

Claude Code built it with resend

Prompt: Add transactional email sending to this app with a React email template.

Grader: Agent installed resend and @react-email/components, wrote a React Email welcome template, a sendEmail helper using server-only, and a POST /api/send route; build, lint and typecheck pass, and the route was exercised locally (400 on bad input, 500 without API key), with no real email sent since no key was available. Build emitted prettier resolution warnings from @react-email/render but exit code was 0.

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