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mcp-builder

anthropics/skills

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

The scanner found nothing risky in its 11 files.

What it does

  • Runs shell commands
  • Installs packages
  • Reaches 127.0.0.1, api.example.com, example.com, github.com, localhost, mcp.example.com, modelcontextprotocol.io, raw.githubusercontent.com, ts.sdk.modelcontextprotocol.io, www.apache.org
  • Reads API_BASE_URL, API_KEY, API_URL, EXAMPLE_API_KEY, PORT, TRANSPORT
  • Writes 11614.72, 304.65, 4.46, 7.61, 87.25, params.offset

Findings (0)

The scanner found nothing risky in 11 files.

Decide which skills your team's agents may run

skillsvault scans every skill your organisation uses, blocks the ones you ban on every developer's machine, and keeps a tamper-evident record of every run. Free for one developer.

A deterministic scan of the skill's files as published today; it isn't a guarantee. It reads the files and reports what they do — nothing is run or installed.