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Zero Perfect
A minimal full-stack todo app with database-backed queries and mutations, guest and Gravatar auth, Cast realtime, routes, and an HTTP endpoint.
The dish
What it makes.
Your ingredients
Your agent will ask.
Answer these once. The recipe uses your details instead of placeholder copy.
- What should the app track instead of todos?
- What should the app be called?
The method
The whole prompt.
Paste this into Claude, ChatGPT, Codex, Cursor, or another coding agent. It builds the site and publishes it to Spacefast.
Build me a small full-stack todo app with Spacefast Zero and Preact.
Use the Zero capsule model rather than a separate API server:
- Define a `todos` table with text, completion state, and an owner ID.
- Scope reads to `ctx.auth.userId` and expose them through a `todos` query.
- Add todos through an `addTodo` mutation after trimming and limiting the text.
- Show updates in realtime through the Zero client and Cast.
- Support the built-in guest session and Gravatar sign-in/sign-out controls.
- Add client routes for the todo list and `/status`.
- Back `/status` with a `GET /api/status` Zero endpoint that returns `ok`.
- Keep shared input cleanup and types in a pure TypeScript module.
- Keep the app compact and accessible, with a labeled input, visible focus states,
useful empty/loading states, and responsive layout.
Use this exact Spacefast badge in the generated document:
```html
<script src="https://spacefast.com/badge.js" data-example="zero-perfect"></script>
```
Run it locally with `sf dev`, verify both routes and a realtime todo update, then
publish the project root with `sf publish`.