MCP Apps Builder

MCP Apps Builder is an AI Engineering skill for Claude Code, published by awslabs in cli-agent-orchestrator.

1.1K stars226 forkson awslabs/cli-agent-orchestratorAdded 2026/08/21+1% in starsRepository updated 2026/08/21

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Install in seconds

Install MCP Apps Builder

Copy MCP Apps Builder into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/awslabs/cli-agent-orchestrator/tree/main/skills/mcp-apps-builder ~/.claude/skills/mcp-apps-builder

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/awslabs/cli-agent-orchestrator.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/mcp-apps-builder/SKILL.md in awslabs/cli-agent-orchestrator
Installs to: ~/.claude/skills/mcp-apps-builder
Collection: One of 18 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What MCP Apps Builder does

MCP Apps Builder loads the official ext-apps skills for creating, migrating, or extending MCP Apps with interactive ui:// views. Use it when building a new MCP App, adding a view to a server, converting an OpenAI Apps SDK app, or hybridizing a web app.

MCP Apps Builder is cataloged under AI Engineering on DirSkills. MCP Apps Builder comes from a repository tagged agent-orchestration, ai-agents, ai-coding-assistant, antigravity and claude-code.

Documentation

README

Excerpt

MCP Apps Builder (ext-apps Agent Skills bridge)

The Model Context Protocol ext-apps repo ships four official Agent Skills that teach an AI coding agent how to build MCP Apps (SEP-1865 — interactive ui:// UIs that render inside a chat host). This skill tells you when to reach for them and how to install them, so MCP App work is done with the canonical, up-to-date guidance instead of guesswork.

The four builder skills

This is the opening of the README. Read the full README on GitHub.

Commands MCP Apps Builder provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/plugin

Frequently asked about MCP Apps Builder

What else does awslabs publish alongside MCP Apps Builder?
MCP Apps Builder is one of 18 skills that DirSkills catalogs from awslabs/cli-agent-orchestrator, the repository it ships in. Its siblings there include AG-UI Author, AI-DLC Portfolio and Add UI To MCP Server. Each one is a separate skill with its own page in this directory, installs the same way MCP Apps Builder does, and is maintained by awslabs in that same repository. The rest of the collection is listed on the awslabs/cli-agent-orchestrator page.
How does MCP Apps Builder compare to other AI Engineering skills?
MCP Apps Builder ranks #1274 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of MCP Apps Builder against them. Open each page to compare what they document and how they install.