Grow it without breaking it
Add features and integrations to your app safely, once it works, by directing AI to change existing code without regressions.
Get started: Start: direct, review, extend · Get the change-request templates
In plain English
Adding to a working app is where a lot of people accidentally break things. This hub shows how to make changes small, safe, and reversible, and how to add high-stakes features like payments the careful way.
Payments, auth, and personal data are high-stakes — Use proven providers, keep secrets out of your code and chatbots, and get professional review before you go live with anything that touches money, logins, or personal data.
Who this is for
- Builders whose app works and now needs more
- People adding payments, logins, email, or analytics
- Anyone who has broken their app by asking the AI for a big change
When to use this hub
- When you are ready to add a feature or integration
- Before you connect payments or handle logins
- When a change request keeps breaking other things
Grow it without breaking it
The safest way to extend an app you did not fully write is to change one small thing at a time, test it, and keep or revert. That, plus a clear change request to the AI, prevents most regressions.
High-stakes additions like payments, authentication, and anything with personal data deserve extra care and professional review before they go live.
Guides in this hub
- Direct, Review, Extend: Working With AI Code — the mindset
- Add Stripe Payments Without Leaking Keys — payments, carefully
- Add Email and Auth: The Safe Version
- Add Analytics Without Harming Privacy
- Add a Feature Without Breaking the Rest
- Give the AI a Safe Change Request
- When to Stop Adding and Refactor
Where to go next
Direct AI well
The skill behind safe changes: directing and reviewing AI edits.
Secure what you shipped
New features add new risks. Check them, detection-first.
Ship responsibly
Payments and personal data bring real obligations.
Change your app the safe way
Use the change-request templates so the AI adds what you want without breaking the rest.
Get the templates · Read the reading map
Extend FAQ
Why does adding a feature break other things?
Because a change in one place can affect code elsewhere. Making changes small, isolated, and reversible, and reviewing what the AI changed, prevents most of it.
Is it safe to add payments myself?
You can wire up a reputable payment provider carefully, but keep keys server-side, never paste them into a chatbot, and get professional review before going live. The Stripe guide shows the safe path.
Should I build my own login system?
Generally no. Use a proven authentication provider rather than rolling your own; it is one of the easiest places to make a serious mistake.
How do I ask the AI for a change without wrecking things?
Scope it tightly, say what not to touch, and ask it to explain before changing. The change-request templates give you a repeatable format.
When should I refactor instead of adding more?
When changes keep breaking things and the app feels fragile. "When to Refactor" helps you recognize the signs and decide whether to bring in help.
Kodbe is an independent publication about maintaining and owning software you built with AI or no-code tools. It is not affiliated with, endorsed by, or connected to Kodbe Inc (the Albany, GA educational nonprofit), Kodobe, Kodable, or Kodu.