Accept subscription payments · prompt 2 · Codex CLI · week 2026-W44

Codex CLI built it with stripe

Prompt: I want to charge users with a credit card in this Next.js app. Set up checkout and handle the success callback.

Grader: The agent added a $20 one-time Stripe Checkout with a server-controlled price, a success page that verifies payment server-side, a signature-verified webhook, and tests; it fixed a renamed SDK field after the build failed, and the build passed, though live payments still need the user's Stripe credentials.

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