● for Founders shipping with AI coding agents

A complete agent-ready spec — in minutes, not weeks.

A guided interview turns your app idea into a full specification — PRD, architecture, data model, API contract, UX spec and more — so your AI coding agent builds the right thing, with no ambiguity left to guess.

Your first spec is free — no card required.

Generates tailored instruction files for Claude Code Cursor Windsurf GitHub Copilot Gemini CLI OpenAI Codex
The problem

Coding agents are only as good as the spec you give them

Hand an agent a one-liner and it fills the gaps with guesses — incomplete entities, invented screens, incompatible stack. It builds the wrong thing confidently, and you burn days (and tokens) redoing scope you never wrote down. The fix isn't a better prompt. It's a real spec.

🎯

Decisions, not guesses

Every question carries one opinionated, recommended answer. Accept it or override it — but nothing important is left undecided.

📐

Built for your agent

Data models as schema + ER diagrams, UX as structured flows — the formats an agent can act on, not mockups it can't read.

Minutes, not meetings

A focused nine-stage interview replaces days of scoping docs. Answer, accept, download — then let your agent build.

How it works

From idea to spec in four steps

1

Describe your idea

One or two sentences is enough. "A desktop app to bulk-tag local photos with a one-time licence."

2

Answer the interview

Nine stages — problem, scope, stack, NFRs, data model, API contract, UX, a consistency check, and your agent. Each with a recommendation you can accept or change.

3

Review & refine

You're always in control. Edit any recommendation; your answers are always honoured.

4

Download & build

Get the full document set as a zip and drop it into your coding agent. It builds the right thing.

9
guided stages
8
agent-ready documents
~15 min
idea to full spec
$0
your first spec
What you get

A complete, agent-ready document set

Tailored to your chosen agent — the instruction file is named and formatted exactly how it expects.

md
Agent instructions
The first thing your agent reads — and obeys
md
PRD.md
Everyone builds the same product — even the agent
md
USER_STORIES.md
Testable criteria — "done" is never a debate
md
ARCHITECTURE.md
Guardrails that stop confident wrong turns
md
DATA_MODEL.md
Your schema, decided — no invented entities
md
API_SPEC.md
Contracts your agent can't misread
md
UX_SPEC.md
Every screen and state, decided upfront
json
stack.json
Your stack as data — tooling can read it too
Pricing

Start free. Upgrade when it earns its keep.

Free
$0
To try it on a real idea.
  • One complete spec
  • All document types
  • Download as zip
Claim your free spec
Credit packs
$9 / spec — less in packs
1 spec $9 · 3 for $19 · 10 for $49.
  • Every document, every project
  • Credits never expire
  • Full project history
  • No subscription — pay for what you use
Spec your next idea
FAQ

Questions, answered

What exactly do I get at the end?
Eight files, ready for your agent: the agent instruction file (named for your tool — CLAUDE.md, AGENTS.md, .cursor/rules…), PRD.md, USER_STORIES.md, ARCHITECTURE.md, DATA_MODEL.md, API_SPEC.md, UX_SPEC.md, and a machine-readable stack.json. Downloadable as a zip, kept in your project history.
Which coding agents are supported?
Claude Code, Cursor, Windsurf, GitHub Copilot, Gemini CLI, and OpenAI Codex — plus a generic format for anything else. The instruction file is named and formatted exactly how your agent expects, and your existing custom rules can be merged in.
How long does an interview take?
Typically 10–20 minutes. Each step drafts a complete recommendation — a full data model, a real API contract — not just a question, so individual steps can take a little while. Accepting a recommendation is one click.
Can I change the recommendations?
Always. Every question comes pre-filled with one opinionated recommended answer — accept it as-is or edit anything. Your answers are always honoured over the recommendation.
Do credits expire?
No. Buy a pack, use it whenever. Each credit is one complete interview and document set, and your first spec is free.
Is my idea private?
Your interview and documents live in your account and are used only to generate your spec. We don't publish, share, or train on them.

Give your agent a spec worth building from

Your first one is free. See what your idea looks like fully specified.

Spec my idea for free →