MCP Builder
Design and scaffold Model Context Protocol servers with real tool schemas.
Claude Cursor Codex MCPtoolsservers
What it is
Skills teach procedure. MCP exposes live tools. MCP Builder helps you choose the boundary, write input schemas, and avoid turning every function into a tool the model will never call.
When to use
Use when you need a new MCP server, or you are deciding skill versus MCP.
How to install
Install mcp-builder/SKILL.md in the repo that will host the server code.
# Claude Code
.claude/skills/mcp-builder/SKILL.md
# Grok Build
.grok/skills/mcp-builder/SKILL.md
# Codex
.agents/skills/mcp-builder/SKILL.mdExample prompt
Design an MCP server for our internal ticket API. Three tools max. Show the schema first.
Source: Open Agent Skills ecosystem