app-builder

Orchestrates full-stack application scaffolding from natural language requests using templates and specialist agents.

2|Updated May 30, 2026
One-click install
npx skills add https://github.com/virahitvin8/crafty-gis --skill app-builder-virahitvin8
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: app-builder
Source: https://github.com/virahitvin8/crafty-gis/tree/main/GIT_STAR/.agent/skills/app-builder
Command: npx skills add https://github.com/virahitvin8/crafty-gis --skill app-builder-virahitvin8

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve? Starting a new application requires choosing a tech stack, designing a project structure, and coordinating many implementation steps, which is slow and error-prone when done manually. ## Core Features & Use Cases - Project Type Detection: Maps keywords in a request (blog, SaaS, mobile, CLI, extension) to one of 13 project templates. - Tech Stack Selection: Provides a 2026 default stack (Next.js 16, React 19, Tailwind v4, Prisma, PostgreSQL) with documented alternatives. - Multi-Agent Coordination: Sequences planner, database, backend, frontend, security, and DevOps agents with a mandatory plan-file verification checkpoint. - Use Case: Ask for an Instagram clone and get a detected project type, a Next.js + Prisma + Cloudinary stack, a database schema, API routes, pages, and components scaffolded by coordinated agents. ## Quick Start Create a SaaS subscription app with user authentication and Stripe payments using the app-builder workflow.

Frequently Asked Questions about app-builder

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I create a full-stack app from a natural language description?

Describe the application in plain language, such as an e-commerce store or dashboard. The workflow detects the project type from keywords, selects a matching template and tech stack, creates a plan file, then coordinates specialist agents to build the database, API, and UI.

What tech stack does the app builder use by default?

The 2026 default stack is Next.js 16 with TypeScript, Tailwind CSS v4, React 19 Server Components, PostgreSQL with Prisma, and Auth.js or Clerk for authentication. Alternatives like Nuxt 4, FastAPI, Flutter, and Expo are available per project type.

Which project templates are available for scaffolding?

Thirteen templates cover Next.js full-stack, SaaS, and static sites, Nuxt, Express and FastAPI backends, React Native and Flutter mobile apps, Electron desktop apps, Chrome extensions, CLI tools, Astro content sites, and Turborepo monorepos.

Can I add features to an existing project instead of starting fresh?

Yes. The feature-building workflow analyzes the existing project, produces a change plan covering database, backend, and frontend impacts, waits for approval, then applies and tests the changes with error recovery strategies.

Why does the build process stop before specialist agents run?

A mandatory checkpoint verifies that a plan file exists in the project root after the planning phase. If the plan file is missing, execution halts and the plan must be created before database, backend, or frontend agents proceed.