Here's a 2-line prompt that gives Claude Design a backend:

```

<YOUR APP IDEA HERE>

----

To get your credentials and learn about InstantDB, fetch this URL:

https://instantdb.com/llm-rules/create-app/AGENTS.md

```

Every cURL request to AGENTS.md spins up a new backend and splices in the credentials.

I used it to build this multiplayer pelican game:

https://349b7470-3747-49e7-8ece-960a45b0b2da.claudeuserconte...

Disclaimer: I am the founder of InstantDB