Agent skill · software engineering · sickn33
mcp-builder
Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. The quality of an MCP server is measured by how well it enables LLMs to accomplish real-world tasks.
Why this skill is useful
Adds executable scripts and detailed implementation patterns for creating MCP servers that enhance LLM capabilities.
What it needs
Requires python, typescript installed locally. About 6k tokens when loaded. Last updated 2026-08-07. 44,571 stars on the source repository.
What this skill does
MCP Server Development Guide Modified in AAS on 2026-09-05: version-scoped examples and bounded evaluation. Overview Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. The quality of an MCP server is measured by how well it enables LLMs to accomplish real-world tasks. --- Process 🚀 High-Level Workflow Creating a high-quality MCP server involves four main phases: Phase 1: Deep Research and Planning 1.1 Understand Modern MCP Design API Coverage vs. Workflow Tools: Balance comprehensive API endpoint coverage with specialized workflow tools. Workflow tools can be more convenient for specific tasks, while comprehensive coverage gives agents flexibility to compose operations. Performance varies by client—some clients benefit from code execution that combines basic tools, while others work better with higher-level workflows. Start with the minimum operations needed for the user's authorized workflow. Expand coverage from observed gaps. Tool Naming and Discoverability: Clear, descriptive tool names help agents find the right tools quickly. Use consistent prefixes (e.g., githubcreateissue, githublistrepos) and action-oriented naming. Context Management: Agents benefit from concise tool descriptions and the ability to filter/paginate results. Design tools that return focused, relevant data. Some clients support code execution which can help agents filter and process data efficiently. Actionable Error Messages: Error messages should guide agents toward solutions with specific suggestions and next steps. 1.2 Study MCP Protocol Documentation Navigate the MCP specification: Start with the sitemap to find relevant pages: https://modelcontextprotocol.io/sitemap.xml Then fetch specific pages with .md suffix for markdown format (e.g., https://modelcontextprotocol.io/specification/2025-11-25/index). …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills sickn33/mcp-builder--f08fb6