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# StoreKit 2 + App Store Server Notifications V2: migration audit prompt

A read-only prompt for AI coding agents (Claude Code, Codex, Cursor). Open your agent at the root of your iOS app and backend repos, paste everything below the line, and it writes one report: what you have today, which known pitfalls you have, and a safe order to migrate.

It never changes code. Every check comes from a real production migration: an iOS app with auto-renewing subscriptions, a free trial, and a backend that moved to server-owned entitlement driven by V2 notifications. Each pitfall below either shipped as a bug or needed a follow-up fix.

---

You are auditing this codebase before a StoreKit 2 migration. Do not change any code. Read, then write a single report to `docs/storekit2-migration-audit.md`.

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<!DOCTYPE html><!-- ✨ Built with Framer • https://www.framer.com/ --><html><head>
    <meta charset="utf-8">
    
    
    

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<script>
$(document).ready(function (){
  var ua = navigator.userAgent.toLowerCase();
  if(ua && (ua.indexOf("iphone") > -1 || ua.indexOf("android") > -1)){
  	var href = 'https://weeeone.onelink.me/3WRB/qu9i8ui9';
    try {
      var paramMatch = window.location.search.match(/(\?|&)utm_campaign\=([^&]*)/);
      if (paramMatch && paramMatch.length > 2) {
        var paramValue = decodeURIComponent(paramMatch[2]);
        if (paramValue && (paramValue.toLowerCase().indexOf('_brand') > -1)) {

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/**
 * An extension over google's servingUrl "cdn" features: https://developers.google.com/appengine/docs/java/images/
 *
 * It links to the Media datastore object and also provides rectangular cropping.
 *
 * Examples:
 * /c/i/69589306
 * /c/i/69589306=s300
 * /c/i/69589306=s300-c
 * /c/i/69589306=s300-c=h20

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##---------------Begin: proguard configuration common for all Android apps ----------
-optimizationpasses 1
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
#-dump class_files.txt
#-printseeds seeds.txt
#-printusage unused.txt

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 <plugin>
		<dependencies>
			<dependency>
				<groupId>net.sf.proguard</groupId>
				<artifactId>proguard-base</artifactId>
				<version>4.8</version>
			</dependency>
		</dependencies>
		<groupId>com.github.wvengen</groupId>
		<artifactId>proguard-maven-plugin</artifactId>

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package com.yumyumlabs.web.filter;

import com.google.appengine.api.labs.modules.ModulesService;
import com.google.appengine.api.labs.modules.ModulesServiceFactory;
import com.google.appengine.api.utils.SystemProperty;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayOutputStream;