Stop Paying AI to Forget What You Already Know

I'm currently building many apps/things in parallel: a form backend, a WhatsApp review alert tool, my WordPress plugins and a few others. Every single one needs Stripe. Every single one needs transactional emails. Most of them use Cloudflare Workers, D1, and R2.

For a while, I let AI write those integrations from scratch every time.

That was expensive. And dumb.

What Was Actually Happening

When you ask Claude Code (or any coding AI) to "integrate Stripe checkout," it doesn't teleport to a finished implementation. It explores. It writes, evaluates, adjusts. It handles errors, then reconsiders the error handling. It figures out where to put the webhook handler, what metadata to attach, how to structure the response.