Claude
Chat app · Skill upload
In Claude, open Customize → Skills and use Create skill to upload the ZIP. Skill availability depends on your plan and workspace settings.
Official Claude setup →Loading...
Community skill · Free instruction package
app-builder
Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
Community instruction package. Read the full workflow below, then choose your app in the setup guide. Package instructions and compatibility claims have not been individually verified; check dependencies and license before use.
CHOOSE YOUR AI APP
Use skills with the software you know
Choose your app below for setup instructions. Keep the complete downloaded folder together. Each package may need tools, dependencies or permissions that your app does not provide.
ChatGPT
Chat app · Access varies
Where Skills is available, open Plugins → Skills → Create → Upload from your computer. Otherwise, copy the instructions into a chat and add your brief; this does not install a skill or include its supporting files.
Official ChatGPT setup →
Google Antigravity
Agent · Project skills
Extract the complete skill folder into your project’s .agents/skills directory. Ask the agent to use the skill for your task.
.agents/skills/app-builder/SKILL.mdOfficial Google Antigravity setup →
Cursor
Code editor · Project skills
Extract the complete folder into .cursor/skills. Check the editor’s skill settings and ask the agent to use it.
.cursor/skills/app-builder/SKILL.mdOfficial Cursor setup →Claude Code
Coding agent · Project skills
Extract the complete folder into .claude/skills. Ask Claude to use the named skill, or use its slash command when available.
.claude/skills/app-builder/SKILL.mdOfficial Claude Code setup →For text-only workflows, you can also paste the instructions into an AI conversation. Copying text does not enable scripts, connect accounts or grant tool access. App subscriptions may cost extra. Logos identify the products; KuchhBhi is independent and is not endorsed by these companies.
Full skill instructions
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 | Next.js + Prisma | Full-stack web app | | nextjs-saas | Next.js + Stripe | SaaS product | | nextjs-static | Next.js + Framer | Landing page | | nuxt-app | Nuxt 3 + Pinia | Vue full-stack app | | express-api | Express + JWT | REST API | | python-fastapi | FastAPI | Python API | | react-native-app | Expo + Zustand | Mobile app | | flutter-app | Flutter + Riverpod | Cross-platform mobile | | electron-desktop | Electron + React | Desktop app | | chrome-extension | Chrome MV3 | Browser extension | | cli-tool | Node.js + Commander | CLI app | | monorepo-turborepo | 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
Frequently asked questions
Is the skill free?
The instruction package is free to download. Your AI app, model usage, connected services and third-party assets may have separate costs.
Is this an AI agent or an MCP server?
It is a set of instructions for a compatible AI assistant. It does not run by itself, connect accounts or install an MCP server.
What if the skill does not appear in my editor?
Check that the named folder contains SKILL.md directly, not a second nested ZIP folder. Confirm that your editor supports skills and that its current settings allow this location. See the official documentation below.