Playbooks & production notes

Revenue

Payment and entitlement guidance for making sure successful charges grant the right access, and cancellations, refunds, and failures remove it.

Checkout, webhooks, entitlements, and the gap between a successful charge and the access it is supposed to grant. For founders taking money through an AI-built app. Start with "Your App Gives Away Paid Access for Free (Stripe Looks Fine)", then "6 Ways Your Vibe-Coded Checkout Leaks Money".

All Launch Readiness Security Data Safety Compliance Stability Deployment Performance Revenue Maintainability

45 playbooks

A billing operations runbook checklist: refunds, complimentary access, disputes and chargebacks

How to enforce plan limits on the backend: server-side entitlements the customer cannot reach

How to integrate Stripe into a working app: what a correct integration contains, end to end

How to make a webhook handler idempotent: one event, one business effect, however many times it arrives

How to set up Stripe customer portal so invoices, card changes and plan changes stop arriving as support email

How to test webhooks: create the Stripe endpoint, find the signing secret, and get from a CLI test to the first real event

How to keep Stripe subscriptions in sync with database records: the reconciliation query, the six ways they drift, and the weekly job

The payment go-live checklist for Stripe, Adyen, Chargebee and RevenueCat: test keys out, live keys in, and the first genuine payment

SaaS billing process best practices: the ten controls that have to hold before money moves

Webhooks security: verify every signature before the event changes anything

What is a webhook, and what has to be true before one is allowed to change your data

What is the subscription lifecycle in Stripe, and which events does your app have to handle?

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