mcp-builder
Installation
SKILL.md
MCP Server Builder
Build an MCP server whose quality is measured by one thing: can an LLM actually accomplish real tasks with it? Not endpoint coverage, not schema elegance. A server that mirrors 40 REST endpoints and leaves the model unable to complete a workflow has failed.
The most common failure is treating this as an API-wrapping exercise. Tool naming, response shape, error text, and pagination are all agent ergonomics problems, and they decide whether the server works.
Bundled from anthropics/skills commit
3b3fad96af16a10759d930941b4520ba0c40edae (2026-08-21), Apache-2.0. Upstream
ships skills/mcp-builder/LICENSE.txt; the repository root carries no SPDX
license, so the per-skill license is the operative one — see
upstream and licensing.