mcp-builder
The mcp-builder skill provides a framework and navigation guide for developing MCP servers using the mcp-use library. It includes architectural patterns, security best practices, and instructions for scaffolding, testing, and deploying MCP servers with tools, resources, prompts, and widgets.
Is mcp-builder safe to install?
Review the source first: our audit of mcp-builder's source files found 7 shell commands, 1 external URL, file reads and writes (high risk). Every command and URL listed appears verbatim in the skill's source. The skill executes shell commands and makes network requests to local MCP server endpoints for testing and development purposes.
How we audit skills: our security review methodology.
Who is this skill for?
Developers building MCP servers using the mcp-use framework.
What can you do with it?
- Scaffolding new MCP server projects
- Implementing backend tools, resources, and prompts
- Developing interactive React-based widgets
- Configuring authentication providers
- Testing and debugging MCP servers via terminal commands
- Deploying MCP servers to production environments
How good is this skill?
Quality score: 5/10. The skill provides a comprehensive and structured guide for the mcp-use framework. It clearly separates concerns between foundations, authentication, backend logic, and UI widgets.
What does the skill file contain?
# IMPORTANT: How to Use This Skill This file provides a NAVIGATION GUIDE ONLY. Before implementing any MCP server features, you MUST: 1. Read this overview to understand which reference files are relevant 2. **ALWAYS read the specific reference file(s)** for the features you're implementing 3. Apply the detailed patterns from those files to your implementation **Do NOT rely solely on the quick reference examples in this file** - they are minimal examples only. The reference files contain critical best practices, security considerations, and advanced patterns. --- # MCP Server Best Practic...
Frequently asked questions
How do I start a new MCP project?
Use the command 'npx create-mcp-use-app <project-name>' to scaffold a new project.
How can I test my MCP server tools without a UI?
Use the 'mcp-use client' CLI to connect to your server and execute tools directly from the terminal.
Where should I look for authentication implementation details?
Consult the 'references/authentication/' directory, which contains guides for providers like Auth0, Clerk, Supabase, and others.
What is the recommended way to handle errors in tools?
Use the 'error()' response helper instead of throwing exceptions to ensure graceful error handling.
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