mcp-app-scaffolding
Scaffolds MCP App project structure with correct directory layout, dependencies, entry points, and framework-specific templates. Handles React (useApp hook), Vanilla JS, Vue, Svelte, Preact, and Solid.
npx skills add a5c-ai/babysitter --skill mcp-app-scaffolding --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# mcp-app-scaffolding Scaffold MCP App projects from scratch with correct structure, dependencies, and framework-specific templates following the reference-code-first methodology. ## Overview MCP Apps are interactive UIs that render inline in MCP-enabled hosts (Claude Desktop, ChatGPT, VS Code, Goose, Postman). Every MCP App requires: - A **Tool** (called by the LLM/host, returns data) registered via `registerAppTool` - A **Resource** (serves bundled HTML UI) registered via `registerAppResource` - The tool's `_meta.ui.resourceUri` references the resource's URI This skill handles the initial project scaffolding: cloning the SDK reference code, selecting a framework, generating the directory structure, and creating all entry points. ## Capabilities ### Reference Code Acquisition - Clone SDK repository at exact published npm version - Access framework templates from `examples/basic-server-{framework}/` - Access API reference source from `src/` - Access advanced patterns from `docs/patterns.md` - Access basic-host reference for testing from `examples/basic-host/` ### Framework Selection Decision Tree - **React** (first-class support): SDK-provided `useApp` hook, `useHostStyles`, `useHo
- Overview
- Capabilities
- Reference Code Acquisition
- Framework Selection Decision Tree
- Project Structure Generation
- Dependency Installation
- Usage
- Step 1: Clone Reference Code
- Step 2: Framework Decision Tree
- Step 3: Initialize Project
- Step 4: Project Directory Layout
- Step 5: Package.json Scripts
- Step 6: TypeScript Configuration
- Verification Checklist
Clone SDK at the exact version published to npm git clone --branch "v$(npm view @modelcontextprotocol/ext-apps version)" \ mkdir my-mcp-app && cd my-mcp-app npm init -y Core dependencies npm install @modelcontextprotocol/ext-apps @modelcontextprotocol/sdk zod Dev dependencies npm install -D typescript vite vite-plugin-singlefile tsx concurrently @types/node React-specific (if using React) npm install react react-dom
What does the mcp-app-scaffolding skill do?
Scaffolds MCP App project structure with correct directory layout, dependencies, entry points, and framework-specific templates. Handles React (useApp hook), Vanilla JS, Vue, Svelte, Preact, and Solid.
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill mcp-app-scaffolding --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.