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BlueprintGet Blueprint
Blueprint Engine

The Blueprint Kit, running inside Claude.

Tell Claude what you're building. The Engine runs each stage itself, asks the questions you'd miss, pushes back, and saves each document into your project in Claude Code and Cowork. In the Claude app, it writes the document and tells you the exact file name to save it as.

$69 one time. 14-day refund if you can't get it running.

Kit or Engine?

Same six stages. Two ways to run them.

The Blueprint KitThe Blueprint Engine
What it isCopy-and-paste files. You open each stage's prompt, paste it into your AI, and save the document it hands back.A Claude plugin. It runs each stage itself. In Claude Code and Cowork it saves each document into your project; in the Claude app it tells you the exact file name to save it as.
Works inAny AI chat. Tested with Claude; other AI chats haven't been tested yet.Claude app, Claude Desktop, Cowork and Claude Code only.
Price$39 one time$69 one time ($50 if you own the kit)

The Engine doesn't work in ChatGPT or other AI tools. It's built for Claude only. If you use ChatGPT, Gemini, Cursor or a no-code builder, get the kit. It's tested with Claude; other AI chats haven't been tested yet. The Engine runs the same six stages as the current kit.

What you say

Plain English. No commands to learn.

01

"Start a new project with Blueprint: …"

Runs stage 1 on your idea, or stage 0 if there's already code in the folder.

02

"Where am I in Blueprint?"

Shows which documents exist and your next step.

03

"Rescue this app"

Writes the plan your existing app should have had, and ranks its risky gaps.

04

"Is this safe to launch?"

Runs the 14-point security gate on your code.

05

"Check for Blueprint updates"

Compares your version with the latest.

What it does that copy-and-paste can't

It keeps track, so you don't have to.

Knows your stage.It works out where you are from the Blueprint documents in your project folder. In the Claude app, it works from the documents you share with it, or asks.
Reads before it asks.It reads your saved documents before asking you anything, and never asks for something they already say.
Keeps documents in step.It checks that later documents still cover every feature, role and piece of data the earlier ones promised.
Follows your standing orders.If your project has an AGENTS.md, it reads it first and follows it.
Saves each document itself.No copying and pasting prompts. In Claude Code and Cowork, each finished document goes straight into your project. In the Claude app, it writes the document and tells you the exact file name to save it as.
Proof

Tested with real files, failures published.

The Engine is tested by giving Claude its instructions and a project folder with real file tools, then checking which files it actually read and wrote, plus a separate grading call against a pass rule written before testing.

Latest full run

33 of 36 runs passed

12 scenarios, 3 runs each, on version 1.4.4. Two of the three failures were problems in the test page, not the Engine. The third was fixed in 1.4.5.

Re-run on 1.4.5

9 of 9 runs passed

The three scenarios with failures in the full run, re-run 3 times each on the current version.

Security review

10 of 10 flaws in 7 of 8 runs

A test app with 10 hidden security flaws. The review found all 10 in 7 of 8 runs, and 9 in the other.

Every run, including the failures, is on the open testing page.

Requirements

A paid Claude plan and a couple of minutes.

A paid Claude planThe Engine runs inside Claude, so you need a paid Claude plan.
Claude app, Desktop or CoworkUpload one file in Claude's Skills settings. Done.
Claude CodeTwo commands to install the plugin, then restart Claude Code.
Pricing

One-time price. No subscription.

Claude only

The Blueprint Engine

$69 one time

The six Blueprint stages, run by Claude. It asks, pushes back, and saves each document into your project in Claude Code and Cowork.

  • Works in: Claude app, Claude Desktop, Cowork and Claude Code. Not ChatGPT or other AI tools
  • You get: one skill file for the Claude app and a plugin for Claude Code
  • Updates: say "Check for Blueprint updates" and it compares your version with the latest. You also get an email when there's a new version; download it from your receipt link
Buy the Engine

14-day refund if you can't get it running

Own the kit? Your $50 upgrade code is in your purchase email, or email me and I'll send it.

FAQ

Questions

Do I need the kit too?

No. The Engine runs the same six stages as the current kit. Buy the kit if you also use other AI tools.

Does it work with ChatGPT?

No. The Engine works in Claude only: the Claude app, Claude Desktop, Cowork and Claude Code.

How do updates work?

Updates aren't automatic. Say "Check for Blueprint updates" and the Engine compares your version with the latest. You'll also get an email when there's a new version. Download it from the link in your purchase receipt.

What if I can't get it running?

Email within 14 days and you'll get your money back.

Let Claude run the stages.

Plan it, design it, build it and check it, without copying a single prompt.