This is a real-time design tool that runs in the browser while Claude pushes commands via MCP. You create a session, the user opens a URL, and every add_section or batch_update renders instantly. The workflow is JSX with Tailwind classes mapping to actual HTML elements, so you're building semantic web layouts, not generating static mockups. It includes 68 tools for everything from alignment and animations to document state inspection. Useful when you want Claude to visually prototype landing pages, dashboards, or app UIs without switching to a separate design tool. Sessions expire after two hours, and you can attach to an existing URL instead of creating duplicates if the MCP process restarts.

skills.sh installs
715
GitHub stars
25
last updated
Aug 21, 2026

Install

$ npx -y skills add pablostanley/efecto-plugin --skill efecto-web-design --agent claude-code

Installs into .claude/skills of the current project.

Files

Efecto — Design Web Pages with AI

Efecto is a real-time web design tool that AI agents control programmatically. You create a session, the user opens a URL in their browser, and you push design commands that render instantly. Every node maps to a real HTML element styled with Tailwind CSS — web-native, semantic, and pixel-accurate.


Setup

This skill requires the Efecto MCP server. Check if it's available by looking for tools like create_session, add_section, or get_document in your tool list.

If Efecto tools are NOT available, install the MCP server:

Claude Code

claude mcp add efecto -- npx -y @efectoapp/mcp

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "efecto": {
      "command": "npx",
      "args": ["-y", "@efectoapp/mcp"]
    }
  }
}

Windsurf / VS Code / Other MCP Clients

{
  "mcpServers": {
    "efecto": {
      "command": "npx",
      "args": ["-y", "@efectoapp/mcp"]
    }
  }
}

Sponsors

Details

Repository
github.com/pablostanley/efecto-plugin
Categories
Frontend Development, Backend & APIs, DevOps & CI/CD, AI & Agent Building, Design & UI/UX
First seen
Jun 3, 2026

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