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MCP App Builder

MCP App Builder is an agent skill (a SKILL.md file) from alpic-ai/skybridge. Guide developers through creating and updating MCP Apps. It works with Claude Code and has 2,145 GitHub stars across a repository of 3 listed skills. Install it by copying the skill folder into your agent's skills directory.

github.com/alpic-ai/skybridge/skills/mcp-app-builder (opens in a new tab)

View on GitHub (opens in a new tab)

Add this skill

Claude

Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):

git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder ~/.claude/skills/mcp-app-builder   # personal, or .claude/skills in a project

In the Claude apps, zip the mcp-app-builder folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder .agents/skills/mcp-app-builder   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/alpic-ai/skybridge.git
cp -r skybridge/skills/mcp-app-builder .cursor/skills/mcp-app-builder   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Guide developers through creating and updating MCP Apps. Covers the full lifecycle: brainstorming ideas against UX guidelines, bootstrapping projects, implementing tools/views, debugging, running dev servers, deploying and connecting apps to ChatGPT. Use when a user wants to create or update a MCP App, MCP server or use the Skybridge framework. Those are conversational experiences that extend AI assistants through tools and custom UI views.

When it triggers

  • Use when a user wants to create or update a MCP App, MCP server or use the Skybridge framework.

More skills in alpic-ai/skybridge

3 skills are listed from this repository.

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FAQ

MCP App Builder FAQ

Still curious? Email info@appsgit.com.

What is the MCP App Builder skill?

MCP App Builder is an agent skill (a SKILL.md file) from alpic-ai/skybridge. Guide developers through creating and updating MCP Apps. It works with Claude Code and has 2,145 GitHub stars across a repository of 3 listed skills. Install it by copying the skill folder into your agent's skills directory. Its SKILL.md lives at github.com/alpic-ai/skybridge/skills/mcp-app-builder.

How do I install the MCP App Builder skill?

Copy the mcp-app-builder folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.

Is the MCP App Builder skill free?

Yes. The repository is open source under the MIT license.

Is MCP App Builder maintained?

The repository's most recent commit was on Oct 6, 2026. Its latest release is v2.0.3. appsgit only lists skills from repositories with a commit in the last six months.