The moment that broke my patience was a Stripe webhook I'd already implemented correctly once before. I knew I'd gotten the signature verification right on my last project. The exact stripe.webhooks.constructEvent() call with the raw body buffer, not the parsed body — the mistake that burns everyone the first time. I'd already made that mistake and fixed it. But I couldn't find where the working version lived. Different repo? A local file I'd moved? Some half-archived Notion doc? An hour later I'd written it from scratch again. Same implementation. Recovered from memory instead of copied from working code. That was project three. I spent the next two weeks turning everything I kept rebuilding into Claude Code skills — tasks that run against a new project and output tested, working implementations of the same patterns I was recovering each time. I packaged 11 of them as Ship Fast . Here's what's actually in it and why those 11 specifically.…