Build Great Products
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Free plugin · Claude Code, Codex, and Cursor

Your agent builds it. The blueprint gets it right.

Builder Blueprints is a free plugin for your coding agent. Each blueprint interviews you, gives your agent the best-practice reference to build from, audits what you built, and writes the launch guide for it.

Give this to your agent

install prompt
Install the Builder Blueprints plugin for me.

1. Check `claude plugin list`. If `builder-blueprints` is already installed and enabled, skip to step 3.
2. Add the marketplace and install the plugin:
   claude plugin marketplace add BuildGreatProducts/builder-blueprints
   claude plugin install builder-blueprints@builder-blueprints
3. Tell me if I need to restart Claude Code for the new skills to load.
4. When it's installed, list the blueprints I can use and give me one example request for each.

Pick your tool, copy the prompt, paste it into your agent. Free. No signup.

Only want one blueprint? Grab individual skills →

HOW IT WORKS

How it works

Every blueprint works in four modes and picks the right one from what you ask. You steer. The agent does the heavy lifting. Each mode is backed by a file in the blueprint's folder.

01 · PLANSKILL.md

A short interview

Asks what you're building and adapts to how much you've built before. Writes a brief to docs/ that your agent builds from.

02 · BUILDREFERENCE.md

Built from best practice

Your agent follows the blueprint's reference: the current stack, the patterns that work, and the mistakes to avoid. You steer, it builds.

03 · CHECKCHECKLIST.md

An audit before you ship

Say “check my site” or “audit my API”. It runs the checklist against what you actually built and offers the fixes.

04 · LAUNCHLAUNCH.md

A launch guide for what you built

Say “help me launch”. You get a step-by-step guide that marks what you do, what your agent does, and what you do together.

THE BLUEPRINTS

Every blueprint, and what it builds

You don't need to pick one. Describe what you want to build and the right blueprint starts. Open one to see what's inside, or copy it on its own.

01 · WEBSITE4 FILES

A Next.js website that ranks

Marketing sites, landing pages, blogs, docs and portfolios, with SEO built in from the first commit.

  • SKILL.md

    Interviews you about the site, who it's for, and the one action every page should drive.

    → docs/website-brief.md
  • REFERENCE.md

    Next.js App Router, Tailwind v4 and shadcn/ui, static by default. Metadata, sitemap, structured data and performance budgets come before the second page.

  • CHECKLIST.md

    Metadata, crawling and indexing, structured data, performance, content, privacy and AI search.

  • LAUNCH.md

    GitHub, deploy to Vercel or Cloudflare, connect your domain, tell the search engines, then smoke test the live site.

    → docs/website-launch.md
  • Try saying

    “Help me build a website for my bakery that ranks on Google”

just blueprint-website
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-website ~/.claude/skills/
View blueprint-website on GitHub →
02 · AI PLUGIN4 FILES

A plugin people install and use

A Claude Code plugin or a set of agent skills that actually trigger, published through a marketplace.

  • SKILL.md

    Interviews you about what the plugin does, then shapes it into skills with descriptions that trigger.

    → docs/plugin-brief.md
  • REFERENCE.md

    One repo, one marketplace, one plugin. Skills first, portable to Codex and Cursor, with agents, hooks or MCP only when a skill can't do the job.

  • CHECKLIST.md

    Manifests, skills, other components, security, docs and release.

  • LAUNCH.md

    Put it on GitHub, install it like a user would, then get it in front of people.

    → docs/plugin-launch.md
  • Try saying

    “I want to turn my prompts into a Claude Code plugin”

just blueprint-ai-plugin
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-ai-plugin ~/.claude/skills/
View blueprint-ai-plugin on GitHub →
03 · THREE.JS GAME5 FILES

A browser game people can play

A 3D game in three.js with a Blender asset pipeline, playable on a laptop or a phone.

  • SKILL.md

    Interviews you about the game and gets a grey-box version of the core loop running before any art.

    → docs/game-brief.md
  • REFERENCE.md

    three.js, TypeScript and Vite on WebGPU, Rapier physics, a fixed timestep, and one asset pipeline from Blender to glTF.

  • CHECKLIST.md

    Game loop, controls, assets, performance, robustness, licences and release.

  • LAUNCH.md

    Store page assets, publish on itch.io, an optional URL of your own, then get it in front of players.

    → docs/game-launch.md
  • export_glb.py

    A Blender export script that turns your models into web-ready glTF.

  • Try saying

    “Let's make a low-poly racing game in the browser”

just blueprint-threejs-game
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-threejs-game ~/.claude/skills/
View blueprint-threejs-game on GitHub →
04 · MCP SERVER4 FILES

An MCP server AI apps use well

A small set of clear tools that let Claude, ChatGPT and Cursor act on your product, inside your app or on its own.

  • SKILL.md

    Interviews you, picks the architecture from a decision path, and writes the tool list.

    → docs/mcp-brief.md
  • REFERENCE.md

    Embedded when there's an app, remote and stateless by default, three to seven outcome-shaped tools, OAuth through your existing identity provider.

  • CHECKLIST.md

    Protocol and architecture, tools, security, auth, packaging, testing, docs and release.

  • LAUNCH.md

    Deploy a remote server or package a local one, install it like a user would, then get it listed.

    → docs/mcp-launch.md
  • Try saying

    “Add an MCP server to my Next.js app so Claude can manage my tasks”

just blueprint-mcp-server
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-mcp-server ~/.claude/skills/
View blueprint-mcp-server on GitHub →
05 · NODE API4 FILES

An API shaped around your use case

A TypeScript API in Hono, Fastify or Express, with the right resources, endpoints and auth, and nothing you don't need.

  • SKILL.md

    Interviews you about the use case, then designs the resources and endpoints.

    → docs/api-brief.md
  • REFERENCE.md

    TypeScript run directly by Node, validated inputs, published docs, a real database, and every record checked for ownership.

  • CHECKLIST.md

    Design, code health, ownership and auth, input and errors, security, data, webhooks and operations.

  • LAUNCH.md

    Production database, deploy, custom domain and HTTPS, monitoring, then a production smoke test.

    → docs/api-launch.md
  • Try saying

    “I need an API for my booking app”

just blueprint-node-api
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-node-api ~/.claude/skills/
View blueprint-node-api on GitHub →
06 · UPDATE1 FILE

Keep your blueprints current

Shows what's new since your version and updates your copy, however you installed it.

  • SKILL.md

    Finds your install, compares it with the public repo, shows the changelog, and updates only after you confirm. It never touches your own briefs or launch guides.

  • Try saying

    “Update my blueprints”

just blueprint-update
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-update ~/.claude/skills/
View blueprint-update on GitHub →

ONE AT A TIME

Just want one blueprint?

Every blueprint is a self-contained folder in the skills/ directory on GitHub. Download the one you want and copy it into your skills folder. Nothing else is needed.

The folders follow the open Agent Skillsformat, so they also work in Codex, Cursor, Gemini CLI and other tools that support skills. Copy the folder into that tool's skills directory instead.

terminal
git clone --depth 1 https://github.com/BuildGreatProducts/builder-blueprints /tmp/bb
cp -R /tmp/bb/skills/blueprint-website ~/.claude/skills/
Browse the skills on GitHub

STAY CURRENT

Blueprints get better. So does your copy.

The blueprints are maintained in a public repo, with new stack defaults, new checklist items and new blueprints as they land. Say update my blueprintsand the update skill shows what's new and updates your copy. Or run it from the terminal.

terminal
claude plugin update builder-blueprints@builder-blueprints

For automatic updates: open /plugin, go to Marketplaces, choose builder-blueprints, then Enable auto-update.

Install Builder Blueprints. Free.

Five blueprints in one install, and your agent builds from best practice instead of guesswork. MIT licensed and open on GitHub. Nothing behind a paywall.

Get the install promptView on GitHub