Spec To Repo
alirezarezvani/claude-skills
A skill your agent uses when the user says 'build me an app', 'create a project from this spec', 'scaffold a new repo', 'generate a starter', 'turn this idea into code', 'bootstrap a project', 'I…
Main application building orchestrator. An agent skill from xenitV1/Antigravity-Workflows.
Install App Builder
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install xenitV1/Antigravity-Workflows app-builder --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/app-builder .claude/skills/app-builder && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .claude/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builderType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install xenitV1/Antigravity-Workflows app-builder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/app-builder .agents/skills/app-builder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .agents/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install xenitV1/Antigravity-Workflows app-builder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/app-builder .cursor/skills/app-builder && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .cursor/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/xenitV1/Antigravity-Workflows.git --path skills/app-builder--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install xenitV1/Antigravity-Workflows app-builder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/app-builder .gemini/skills/app-builder && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .gemini/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install xenitV1/Antigravity-Workflows app-builderInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/app-builder .github/skills/app-builder && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .github/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install xenitV1/Antigravity-Workflows app-builder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xenitV1/Antigravity-Workflows.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/app-builder .opencode/skills/app-builder && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "app-builder" agent skill from https://github.com/xenitV1/Antigravity-Workflows/tree/main/skills/app-builder into .opencode/skills/app-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-builder", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
app-builder- GitHub stars
- 130
- Used in
- 9 other repos
- Token cost
- ~767 tokens
- SKILL.md length
- 184 words
- Files
- 25
- Skills in repo
- 42
- Repo updated
- First seen
- Licence
- MIT
At a glance
Main application building orchestrator. An agent skill from xenitV1/Antigravity-Workflows.
- Tasks that involve Cross-platform mobile apps
- SKILL.md covers 🎯 Selective Reading Rule, 📦 Templates (12), 🔗 Related Agents and Usage Example
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Multi-agent orchestration
What it does
App Builder is an agent skill from xenitV1/Antigravity-Workflows. Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
Its SKILL.md is about 770 tokens, which your agent loads only when the skill is triggered. The skill folder holds 31 other files (for example `agent-coordination.md`, `feature-building.md` and `project-detection.md`).
It sits in Development, covering Cross-platform mobile apps and Multi-agent orchestration. It works with Next.js, Flutter, Chrome Extensions and Turborepo. The licence is MIT.
When your agent uses it
- Tasks that involve Cross-platform mobile apps
- Tasks that involve Multi-agent orchestration
Example prompts
- “/app-builder”
Requirements
- Python 3
- Node.js
- Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, Agent
What it can do on your machine
Read from SKILL.md and the folder at commit f0a1fa7. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditGlobGrepBashAgent
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
App Builder loads about 767 tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 184 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Write, Edit, Glob, Grep, Bash, Agent
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from xenitV1/Antigravity-Workflows at commit f0a1fa7, republished under its MIT licence (© xenitV1). 184 words, ~767 tokens.
Download SKILL.mdSave it as
.claude/skills/app-builder/SKILL.md (or your agent's skills folder). This skill also uses 24 other files; get the full folder from GitHub.- name
- app-builder
- description
- Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
- allowed-tools
- Read, Write, Edit, Glob, Grep, Bash, Agent
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 (12)
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 |
| 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© xenitV1, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 24 other files in skills/app-builder of xenitV1/Antigravity-Workflows.
- SKILL.md
- agent-coordination.md
- feature-building.md
- project-detection.md
- scaffolding.md
- tech-stack.md
- templates/SKILL.md
- templates/astro-static/TEMPLATE.md
- templates/chrome-extension/TEMPLATE.md
- templates/cli-tool/TEMPLATE.md
- templates/electron-desktop/TEMPLATE.md
- templates/express-api/TEMPLATE.md
- templates/flutter-app/TEMPLATE.md
- templates/monorepo-turborepo
- … and 11 more
Open the folder on GitHubat commit f0a1fa7
Used in 9 other repositories
We found 42 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 9 other GitHub owners. This page covers the copy in xenitV1/Antigravity-Workflows, which our catalogue first saw on October 7, 2026.
- davila7/claude-code-templatescli-tool/components/skills/business-marketing/app-builder
- aiskillstore/marketplaceskills/sickn33/app-builder
- majiayu000/claude-skill-registryskills/agent/app-builderskills/agent/app-builder-axelmrak-ai+23 more
- sickn33/agentic-awesome-skillsskills/app-builderplugins/agentic-awesome-skills/skills/app-builder+1 more
- Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI.agent/skills/app-builder
- agent-skills-hub/agent-skills-hubskills/app-builder
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/app-builderantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/app-builder+1 more
- benjaminasterA/antigravity-awesome-skillsskills/app-builder
- henryalouf/ruflow.agents/skills/app-builder.agents/skills/antigravity-awesome-skills/skills/app-builder+4 more
Compare with similar skills
App Builder next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| App Builder this skillxenitV1/Antigravity-Workflows | 130 | 9 repos | ~767 | Automated safety check: Notes | MIT | |
| Spec To Repoalirezarezvani/claude-skills | 28k | — | ~2.7k | Automated safety check: Notes | MIT | |
| Code Review Skillawesome-skills/code-review-skill | 2.1k | — | ~2.8k | Automated safety check: Notes | MIT | |
| App Buildersoftspark/ai-toolkit | 179 | — | ~2.2k | Automated safety check: Pass | Apache-2.0 | |
| Project Scaffoldingaiskillstore/marketplace | 430 | — | ~2k | Automated safety check: Pass | None | |
| Senior Architect Toolkitmaslennikov-ig/claude-code-orchestrator-kit | 260 | 8 repos | ~1.2k | Automated safety check: Notes | Custom licence |
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Questions about App Builder
What does App Builder do?
Main application building orchestrator. An agent skill from xenitV1/Antigravity-Workflows. App Builder is an agent skill from xenitV1/Antigravity-Workflows. Main application building orchestrator.
When should I use App Builder?
App Builder fits situations like: tasks that involve Cross-platform mobile apps; tasks that involve Multi-agent orchestration.
How do I install App Builder in Claude Code?
Run `npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a claude-code`. Or copy the skill folder (skills/app-builder in xenitV1/Antigravity-Workflows) into .claude/skills/app-builder in your project. Claude Code loads it when a task matches its description.
How do I install App Builder in Codex?
Run `npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a codex`. Or copy the skill folder (skills/app-builder in xenitV1/Antigravity-Workflows) into .agents/skills/app-builder in your project. Codex loads it when a task matches its description.
Can I use App Builder in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add xenitV1/Antigravity-Workflows --skill app-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/app-builder, .gemini/skills/app-builder, .github/skills/app-builder and .opencode/skills/app-builder in your project.
What does App Builder need to run?
SKILL.md names no scripts, command-line tools or credentials: App Builder is instructions for the agent only. Our summary lists: Python 3; Node.js. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, Agent.
Does App Builder access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is App Builder safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does App Builder use?
App Builder is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does App Builder use?
About 767 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to App Builder?
Skills that share tags, products or a category with App Builder: Spec To Repo (alirezarezvani/claude-skills, 28k stars), Code Review Skill (awesome-skills/code-review-skill, 2.1k stars), App Builder (softspark/ai-toolkit, 179 stars) and Project Scaffolding (aiskillstore/marketplace, 430 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains App Builder?
xenitV1 (a GitHub user) maintains it in xenitV1/Antigravity-Workflows, which has 130 GitHub stars. The repository holds 42 skills in this directory. The repository was last updated on January 14, 2026.
Source: xenitV1/Antigravity-Workflows on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.