App Builder

This is a central orchestrator that turns natural language requests into full-stack applications. It figures out what you're trying to build, picks an appropriate tech stack from 13 templates (Next.js SaaS, React Native, FastAPI, Electron, and more), then coordinates specialized agents to handle frontend, backend, database, and deployment. The selective reading approach is smart: it only loads relevant documentation instead of dumping everything into context. Works best when you're starting from scratch rather than modifying existing codebases. The template coverage is genuinely practical, spanning web apps to CLI tools to browser extensions.

skills.sh installs: 128
GitHub stars: 7.6K
last updated: Jun 3, 2026

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Install

$ npx -y skills add vudovn/antigravity-kit --skill app-builder --agent claude-code

Installs into .claude/skills of the current project.

Files

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`	2026 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