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add-app-to-server

Add interactive MCP App UIs to existing MCP server tools.

Updated May 13, 2026
Search Tags:#mcp#vite#three.js#tool registration#ui integration#mcp apps#resourceUri
One-click install
npx skills add https://github.com/OptimusPi/OpenSCAD-MCP-App-Extension --skill add-app-to-server-optimuspi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: add-app-to-server
Source: https://github.com/OptimusPi/OpenSCAD-MCP-App-Extension/tree/main/.agents/skills/add-app-to-server
Command: npx skills add https://github.com/OptimusPi/OpenSCAD-MCP-App-Extension --skill add-app-to-server-optimuspi

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Users often get only text-only outputs from MCP tools even when the host supports richer interactive experiences like inline 3D viewers, tables, and custom workflows.

Core Features & Use Cases

  • Pairs existing MCP tools with MCP App resources so tool calls render interactive UIs while still providing text fallbacks for non-UI clients.
  • Guides tool-by-tool selection to decide which tools benefit from UI versus staying plain text, including identifying app-only helper tools.
  • Covers end-to-end setup: installing the MCP Apps SDK, bundling UI with Vite (single-file HTML), registering resources, wiring _meta.ui.resourceUri, and handling host theming.

Quick Start

Ask to enrich your current MCP server by adding MCP App UI to the specified tools, and the workflow will analyze your existing tool registrations and produce the exact wiring plan to link each UI resource to its tool.

Frequently Asked Questions about add-app-to-server

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add an interactive UI to an existing MCP server tool?▼

To add an interactive UI to an MCP server, you use the MCP Apps SDK to register UI resources and link them to tools via the _meta.ui.resourceUri property. This pairs your existing tools with rich interfaces while preserving text fallbacks.

What is the best way to render interactive 3D visualizations from MCP tool outputs?▼

Rendering interactive 3D visualizations from MCP tool outputs involves building a UI as a sandboxed single-file HTML bundle and registering it as an MCP App resource. You then link this resource to your tool to enable rich in-host rendering.

Do I need to bundle my MCP App UI with Vite to use the MCP Apps SDK?▼

Yes, you need to bundle your MCP App UI with Vite into a single-file HTML bundle. This sandboxed HTML file is then registered as a resource and connected to your tool to ensure secure and portable rendering within the host environment.

Can I add interactive views to only specific tools in my MCP server?▼

Yes, you can add interactive views to specific tools by analyzing your existing tool registrations and selecting tool-by-tool which ones benefit from a UI. You can also create app-only helper tools while leaving other tools as plain text.

Why should I preserve text fallback content when adding MCP App UI?▼

Preserving text fallback content when adding MCP App UI ensures that non-UI clients can still access tool outputs. While UI resources provide rich in-host experiences for compatible clients, the text fallback maintains broad client compatibility.

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