Mcp Builder
This walks you through building MCP servers that let LLMs interact with external APIs. It covers the full cycle: researching the MCP spec and target API, implementing tools with proper schemas and error handling, testing with the MCP Inspector, and creating evaluation questions to verify your server actually works. The guide pushes you toward TypeScript with streamable HTTP for remote servers, emphasizes comprehensive API coverage over workflow shortcuts, and includes concrete advice on tool naming and response formatting. The evaluation phase is thorough, requiring 10 complex read-only questions with verifiable answers. If you're shipping an MCP server and want a structured process instead of guessing at best practices, this gives you a clear roadmap.
- skills.sh installs
- 690
- GitHub stars
- 43.1K
- last updated
- Jul 14, 2026
Install
$ npx -y skills add sickn33/antigravity-awesome-skills --skill mcp-builder --agent claude-codeInstalls into .claude/skills of the current project.
Files
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.
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- Repository
- github.com/sickn33/antigravity-awesome-skills
- Category
- AI & Agent Building
- First seen
- May 16, 2026
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