app-builder
Helps your agent build complete applications from descriptions. It's useful for creating software quickly by choosing the best technologies.
What it does
This agent helps build complete applications from scratch based on your plain language description. It decides which technologies to use and organizes other tools to build the app.
When to use it
- ✓When you want to create a new web application.
- ✓Needing a mobile or desktop application.
- ✓If you want to develop a browser extension or a command-line tool.
Example of what to ask your AI
“Create an Instagram clone with photo sharing and likes.”
Want more? Open the sections below.
How to use
The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.
Skill link
Ready-to-paste message
How it works
It understands what you want, picks the best technologies (like Next.js, React Native, etc.), and plans the necessary steps. Then, it coordinates other tools to write the code and set up the application's structure.
Installation
Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.
In the terminal (Claude Code, Codex, Cursor), in your project folder:
npx skills add sickn33/agentic-awesome-skills --skill app-builderOr download just the file:
curl -L https://raw.githubusercontent.com/sickn33/agentic-awesome-skills/main/plugins/agentic-awesome-skills-claude/skills/app-builder/SKILL.md -o SKILL.mdTechnical content (original SKILL.md)
Original text by the author, straight from GitHub.
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
When to Use
This skill is applicable to execute the workflow or actions described in the overview.
Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
FAQ
What kinds of applications can it build?
It can build full-stack web apps, SaaS products, landing pages, mobile apps (iOS and Android), desktop apps, browser extensions, and command-line tools.
Does it choose the technologies by itself?
Yes, it has a default recommended tech stack for 2025, but it can also consider alternatives if needed for your project.
How does it know what to do?
It analyzes your request, identifies the project type, selects the appropriate tech stack, and coordinates different agents (specialized tools) to build the application step by step.
Details
Original description by the author
Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
Popularity
- GitHub stars
- 48k
- Ranking position
- #2185
- License
- MIT
- Updated
- 10/15/2026
Comments
- …
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