# shoulditbeaprompt.com

One-line: A brutally honest tool that puts a startup or app idea on trial and rules where it sits on The Moat Line, the line between software you can type into existence and software you can't.

## What it is
shoulditbeaprompt.com grills an idea with three questions, delivers a verdict on a four-rung ladder, and proves the verdict by generating the prompt or skill that would replace it. Built by Mahmoud Halat (Space & Story) as an honest sanity check for the AI-building era.

## The Moat Line framework
The Moat Line separates ideas whose value can be typed into existence, by a model or by a builder in a weekend, from ideas whose value cannot. AI did not move the line; it dragged most of what we used to call software underneath it. The four rungs:
- Rung 1, a prompt: the whole product is one model call and the model already does the job. If losing your API key would kill the company, you are here.
- Rung 2, a skill: a prompt with packaging (instructions, a reference file, a tool), shippable as a Claude Skill or custom GPT; a competent user rebuilds it in an afternoon.
- Rung 3, a weekend clone: a real codebase a good builder rebuilds in a weekend with Cursor or Claude Code. The weekend buys the demo, not the company.
- Rung 4, a system (above the Moat Line): defended by data that compounds, a network assembled one user at a time, lock-in, or trust earned slowly. None of it can be typed.

Two corrections the framework insists on: hard-to-build is not the same as defensible (difficulty buys a lead, not a moat); and below the line, founder-market-fit is often the only moat the tools can't clone.

The one-line test: what is the smallest thing someone would have to reproduce to replace you, and can they just type it?

## Key pages
- The tool (put an idea on trial): https://shoulditbeaprompt.com/
- The Moat Line (the framework): https://shoulditbeaprompt.com/the-moat-line
- Writing (essays on moats and defensibility): https://shoulditbeaprompt.com/writing
- Sample rulings (precedent): https://shoulditbeaprompt.com/precedent
- The skill (run the ruling locally, unlimited): https://shoulditbeaprompt.com/skill
- About / who built it: https://shoulditbeaprompt.com/about

## The skill
The web tool allows one free ruling per day. The same judgment is published as an installable Claude skill named "the-moat-line" so it can be run locally without limit: https://shoulditbeaprompt.com/skill

## Author
Mahmoud Halat, founder of Space & Story (https://spaceandstory.co), an AEO-first web and SEO studio. This is a Space & Story product, alongside cite-met.com and givefeedback.dev.

## Source
The skill is open source: https://github.com/MahmoudHalat/the-moat-line