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Zero-stack app specs

Describe your idea.
Get a spec AI can build from.

Answer a few questions about your app, and Gist writes the spec your AI assistant starts from — architecture, security, and a build order that pauses at checkpoints for your call.

Create your spec See how it works

Three steps to a build-ready spec

  1. 1

    Describe your idea

    Title, one-line description, and what your users see first. No jargon required.

  2. 2

    Answer a few questions

    We ask about data, hosting, and design. Every option is laid out with trade-offs visible — pick what fits, skip what doesn't matter.

  3. 3

    Download your spec

    A markdown file with architecture decisions, security guidance, implementation order, and a suggested prompt for your AI assistant.

What you get

Tailored to your answers, right-sized to your app's complexity.

weather-now-gist-spec-v1.0.md
# Weather Now — Gist Specification

## Summary
> A clutter-free personal weather app. Fetches weather
> from Open-Meteo (free, no key) directly from the
> browser. Plain HTML/CSS/JS — no framework, no build
> step, no server. Deploy static files to Cloudflare Pages.

> For AI assistants: Follow the Implementation Order
> step by step. If any requirement is ambiguous, ask
> the user — do not assume.

## Architecture
- Host: Cloudflare Pages (free tier)
- Framework: None — plain HTML/CSS/JS

## Implementation Order
1. Scaffold: index.html, style.css, app.js, favicon
2. HTML shell with loading/error/success states
3. Styles: cool palette, dark mode, responsive
4. Mock data — checkpoint: get design approval
5. Connect: Open-Meteo API + Nominatim geocoding
6. Deploy: push to Cloudflare Pages

## Suggested Prompt
"Build step by step, starting with mock data..."

Why a spec matters

Right-sized architecture

A simple app gets 4 static files. A complex one gets Workers, KV, and cron. Your spec matches your actual needs.

Security from the start

API keys never touch your frontend. Trust boundaries are explicit. The pre-ship checklist catches what you'd miss.

Skip the cold start

Without a spec, your AI assistant asks a dozen clarifying questions. With one, it can start building immediately.

Free tier aware

Every recommendation fits within free tier limits. Budget math is included — no surprise charges.

Ready to build something?

Answer a few questions, get a build-ready spec.

Create your spec