Turn an app idea into the spec that keeps Lovable, Bolt, Cursor or Claude Code on track. For first-time builders and founders vibe coding an app, before the AI tears up what already works.

$9 once, yours to keep. Runs offline in your browser: no account, no AI key, no subscription.

Also part of the AI Builder Kit: Plainspoken, Blueprint, Skillsmith, Handoff and Promptbook together for $29 instead of $37.

Spec first. Then vibe.

People with no coding background are building real apps with Lovable, Bolt, Cursor and Claude Code. The ones who finish all say the same thing: write the spec before you touch the AI. Exact screens, the data, the edge cases, and what you are not building.

Most people skip it because they do not know what a spec looks like. Blueprint is the spec, as a form.

What it does

• Seven guided sections: the idea, the people, the screens, the data, rules and edge cases, what version one will NOT include, and what you are building with
• Readiness meter and a plain-English list of what is still thin
• One-click rule suggestions: empty states, delete confirmation, phone layout, error messages, own-data-only, loading states
• PRD.md written live, ready to download
• AGENTS.md (also works as CLAUDE.md): tells the AI to work in small steps, explain in plain English, never delete working features, stay inside the spec, keep secrets out of code, and say how to test each step
• Kickoff prompt tuned to your tool: Lovable, Bolt, v0, Replit, Cursor, Claude Code or other
• Build steps: skeleton, one prompt per screen, real data, login, payments, rules pass, phone pass, pre-launch security check, each with a "done when" test
• Six rescue prompts for the moments every vibe coder hits
• Several app specs side by side, backup and restore

Who it's for

First-time builders, founders testing an idea, and anyone who has watched an AI builder tear up a working app on prompt forty.

What you get

• Blueprint (one .html file, runs in your browser, offline)
• A 2-page quick-start guide

Good to know

• Works with the AI you already use: ChatGPT, Claude, Gemini and the rest. There is no AI inside the app, so no API key, no credits and no monthly fee.
• One file. No install, no account, no subscription, no internet needed after download.
• Your data stays on your computer. Export a backup any time; import it on another machine.
• Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
• Instant download.

What's inside the download

• Blueprint.html
• Quick-Start-Guide.pdf