The spec your coding agent actually follows.

One sentence in. Out: the build spec — stack, schema, auth, pages, security, legal — and the AGENTS.md, CLAUDE.md and Cursor rules that keep Claude Code, Cursor or Lovable on it.

or answer the questions yourself

The AI fills in the questionnaire (about 30 seconds); you review every answer before anything is generated. 3 free AI drafts left, no account needed.

Free spec, then the deep spec

Real output for the same project (Ledgerly) — nothing retouched. The free spec frames the build; the deep spec designs every table, route and milestone.

spec.mdFree
### Business-specific entities
Create tables for the following entities (with appropriate relationships):
Client, Invoice, LineItem, Expense, Receipt, PaymentReminder, Report

For each entity:
- Add `id`, `created_at`, `updated_at`
- Add appropriate foreign keys
- Add indexes on frequently queried columns

The template knows your entities by name. The columns, types and relations are left to your agent.

design.md7-day Pass
### `invoices`
Multi-currency invoice with immutable totals once issued

| Column | Type | Null | Notes |
|---|---|---|---|
| `id` | TEXT PK | no |  |
| `org_id` | TEXT | no |  |
| `client_id` | TEXT | no |  |
| `number` | VARCHAR(32) | yes | NULL while draft; assigned from organizations.next_invoice_seq on issue |
| `status` | TEXT | no | ENUM draft\|sent\|partially_paid\|paid\|overdue\|void |
| `currency` | CHAR(3) | no | Invoice currency, immutable after issue |
| `fx_rate_to_base` | NUMERIC(18,8) | no | Rate at issue date, frozen; 1 if currency = base_currency |
| `fx_rate_date` | DATE | yes | Rate source date |
| `subtotal_cents` | BIGINT | no | Minor units of currency |
| `tax_cents` | BIGINT | no |  |
| `discount_cents` | BIGINT | no | DEFAULT 0 |
| `total_cents` | BIGINT | no | subtotal - discount + tax |
| `amount_paid_cents` | BIGINT | no | DEFAULT 0; sum of payments |
| `issue_date` | DATE | yes | In org time zone |
| `due_date` | DATE | yes | issue_date + client terms |
| `sent_at` | TIMESTAMPTZ | yes |  |
| `paid_at` | TIMESTAMPTZ | yes |  |
| `voided_at` | TIMESTAMPTZ | yes | Issued invoices are voided, never deleted |
| `notes` | TEXT | yes | Shown on PDF |
…

Written for the project: every table, typed columns, rules in the notes, relations and indexes. Then routes, acceptance criteria and the build plan.

Read the full specification the engine produced →

How it works

3 steps. 5 minutes. A perfect specification.

1

Describe it, or pick a type

One paragraph and the AI drafts every answer — or choose among SaaS, e-commerce, marketplace, blog, web app, landing page, business site.

2

Check the answers

The questions developers always forget: auth, payments, edge cases, SEO, security. Correct what the draft got wrong.

3

Copy, paste, done

Download the spec and one config file per agent. Drop them at the root of your repo; every agent finds its own.

7 supported project types

Each type has its own questions. We only ask what's relevant.

SaaS Application

Web application with subscription, dashboard, auth

E-commerce

Online store, cart, payment, shipping

Business Website

Presentation website, portfolio, landing page

Marketplace

Multi-vendor platform, commissions, reviews

Blog / Media

Blog, magazine, editorial content, newsletter

Web App / Tool

Online tool, calculator, generator, converter

Landing Page

Single conversion page, email collection, launch

Why use a prompt generator?

The problem isn't the tool. It's the specification.

The right questions

We ask the questions you'd forget. What happens when the subscription expires? Who pays Stripe fees? Refund policy?

Complete specification

Not a vague brief. An exhaustive document: DB schema, auth flows, SEO, security, design system, file structure.

One copy-paste

Paste the specification into Claude Code, Cursor or Bolt. Everything is there to generate a working site on the first try.

Adapted to your project

Questions change based on project type. A SaaS doesn't have the same needs as an e-commerce store.

Security by default

CSRF, XSS, SQL injection, bcrypt, HTTPS... all best practices are built into every specification.

Built-in SEO

Meta tags, schema.org, OpenGraph, sitemap, performance... your site will be optimized from day one.

Inside Claude Code, Cursor and your terminal

The same generator, where you already work. Open source, free to install.

MCP server

Your agent reads the questionnaire, answers it from your repo and the conversation, and writes AGENTS.md and CLAUDE.md itself.

claude mcp add --transport http specpack https://prompt-generator-website.com/mcp

Audit in CI

Scores CLAUDE.md, AGENTS.md, .cursorrules for bloat — the lines that cost context on every session and change nothing. Offline.

npx specpack audit --max-bloat 40

API

Types, questionnaire, specs and AI drafts over plain JSON. Two specs free per address, keys for more.

curl https://prompt-generator-website.com/api/v1/types

Setup for Claude Code, Cursor, Windsurf and the API →

Simple, transparent pricing

Choose your plan and start generating specifications in minutes.

Free
$0
No account, no card
  • 2 template specs
  • 3 AI drafts of the questionnaire
  • 8-file export pack
  • CLI audit & MCP server
  • Deep spec (tables, routes, build plan)
Start free
One project
7-day Pass
$5.00 once
For the week you scope a project
  • 5 deep specs written for your project
  • Unlimited specs for 7 days
  • 30 AI drafts
  • Saved history & API key
  • Never renews — passes stack
Pro
$9.00 / month
or $90.00 / year (2 months free)
  • 10 deep specs a month
  • Unlimited specs
  • 100 AI drafts a month
  • Saved history & API keys
  • Cancel anytime

Ready to generate your first specification?

No account needed. Describe it, or answer the questions yourself.

Start with a description