# Your first pebble

> Describe the tool you want; your AI builds and tests it, then asks for your first record.

Tell your AI the tool you want in a sentence or two. It builds the pebble, runs its tests, and asks you for your first record.

## Describe it

Say what to keep, what you want to see, and when you want a reminder. For example: "Keep a log of my runs with the distance and how it felt. Show my streak and a weekly chart, and remind me at 7 am."

## Let it build

Your AI writes tests first, then the tables, views and reminders, and runs the tests until they pass. Some AI apps ask before each tool use; you can allow it once or always.

## Save a record

Give your AI a real first entry. It saves it and reads it back. Ask it to show a view to see it drawn.

## Or start from the box

Every entry in the [pebble box](/box) has a tested prompt you can copy.