Brownfield Slack alerts: a 6-minute guided MCP run on Stripe + Resend webhooks
TL;DR — I asked Cursor to add Slack alerts for failed payments in an app that already had Stripe, Clerk, and Resend. FetchSandbox MCP spent most of the ~6.5 min run reading webhook handlers, routed to
fetchsandbox.hashnode.dev3 min read