App Builder - Application Building Orchestrator
Analyzes user's requests, determines tech stack, plans structure, and coordinates agents.
🎯 Selective Reading Rule
Read ONLY files relevant to the request! Check the content map, find what you need.
| File | Description | When to Read | |------|-------------|--------------| | project-detection.md | Keyword matrix, project type detection | Starting new project | | tech-stack.md | 2025 default stack, alternatives | Choosing technologies | | agent-coordination.md | Agent pipeline, execution order | Coordinating multi-agent work | | scaffolding.md | Directory structure, core files | Creating project structure | | feature-building.md | Feature analysis, error handling | Adding features to existing project | | templates/SKILL.md | Project templates | Scaffolding new project |
📦 Templates (13)
Quick-start scaffolding for new projects. Read the matching template only!
| Template | Tech Stack | When to Use | |----------|------------|-------------| | [nextjs-fullstack](templates/nextjs-fullstack/TEMPLATE.md) | Next.js + Prisma | Full-stack web app | | [nextjs-saas](templates/nextjs-saas/TEMPLATE.md) | Next.js + Stripe | SaaS product | | [nextjs-static](templates/nextjs-static/TEMPLATE.md) | Next.js + Framer | Landing page | | [nuxt-app](templates/nuxt-app/TEMPLATE.md) | Nuxt 3 + Pinia | Vue full-stack app | | [express-api](templates/express-api/TEMPLATE.md) | Express + JWT | REST API | | [python-fastapi](templates/python-fastapi/TEMPLATE.md) | FastAPI | Python API | | [react-native-app](templates/react-native-app/TEMPLATE.md) | Expo + Zustand | Mobile app | | [flutter-app](templates/flutter-app/TEMPLATE.md) | Flutter + Riverpod | Cross-platform mobile | | [electron-desktop](templates/electron-desktop/TEMPLATE.md) | Electron + React | Desktop app | | [chrome-extension](templates/chrome-extension/TEMPLATE.md) | Chrome MV3 | Browser extension | | [cli-tool](templates/cli-tool/TEMPLATE.md) | Node.js + Commander | CLI app | | [monorepo-turborepo](templates/monorepo-turborepo/TEMPLATE.md) | Turborepo + pnpm | Monorepo |
🔗 Related Agents
| Agent | Role | |-------|------| | project-planner | Task breakdown, dependency graph | | frontend-specialist | UI components, pages | | backend-specialist | API, business logic | | database-architect | Schema, migrations | | devops-engineer | Deployment, preview |
Usage Example
User: "Make an Instagram clone with photo sharing and likes"
App Builder Process:
1. Project type: Social Media App
2. Tech stack: Next.js + Prisma + Cloudinary + Clerk
3. Create plan:
├─ Database schema (users, posts, likes, follows)
├─ API routes (12 endpoints)
├─ Pages (feed, profile, upload)
└─ Components (PostCard, Feed, LikeButton)
4. Coordinate agents
5. Report progress
6. Start preview