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Trust Report v1

mcp-builder

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).

Overall
82
Trust
74
Utility
88
Momentum
88

Install caution

Needs manual review

Risk: Medium

Source: Anthropic Skills

Path: skills/mcp-builder/SKILL.md

Review flags: network access or external URLs, shell command snippets. These are review signals, not definitive security judgments; inspect before installing.

Required permissions

  • • Environment variables / secrets
  • • Shell commands
  • • Network/API usage

Permissions are inferred from SKILL.md text only. They are review prompts, not guarantees about runtime behavior.

Risk flags explained

network_accessmedium

Mentions external URLs, network APIs, downloads, or HTTP client usage.

shell_commandmedium

Contains shell command snippets. Review commands before copy/paste or agent execution.

Score explanation

Trust

  • • Trust starts at 90 before review-signal penalties and metadata bonuses.
  • • Risk-signal penalty: -18 from 2 detected flag(s).
  • • Metadata bonus: +2 from author/version/description fields.

Utility

  • • Utility starts at 55 and rewards clear descriptions, runnable examples, and explicit setup needs.
  • • Description present: yes.
  • • Command examples detected: 3.
  • • Environment variables detected: 1.

Momentum

  • • Momentum starts at 45 and uses public repo activity signals.
  • • Recent repo update within 11 days.
  • • Recent commit volume: 5 commit(s) in the lookback window (+15).
  • • Source has strong public adoption: 153438 stars.
  • • Fork activity suggests reuse: 18085 forks.

Overall

  • • Overall score weights trust 45%, utility 35%, and momentum 20%.

Detected signals

Env vars

  • • API

Commands

  • • https://raw.githubusercontent.com/modelcontextprotocol/python-sdk/main/README.md
  • • npm run build
  • • python -m py_compile your_server.py

URLs

  • • https://modelcontextprotocol.io/sitemap.xml`
  • • https://modelcontextprotocol.io/sitemap.xml`,
  • • https://modelcontextprotocol.io/specification/draft.md`
  • • https://raw.githubusercontent.com/modelcontextprotocol/python-sdk/main/README.md`
  • • https://raw.githubusercontent.com/modelcontextprotocol/typescript-sdk/main/README.md`

Provenance & evidence

SkillRadar makes each review traceable back to the exact source path, source blob SHA, scanner version, and text-only policy that produced the report.

source
github.com/anthropics/skills@main
path
skills/mcp-builder/SKILL.md
source blob SHA
8a1a77a47d141967b246adb4da4f91037578ff7d
scanner version
0.3.0
security model
text_only_no_execute_no_install_no_secrets
scan policy
Fetched and scored as text only; no install, no execution, no runtime loading.

Evidence snippets

network_access

…ion **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 mark…

shell_command

…load `https://raw.githubusercontent.com/modelcontextprotocol/typescript-sdk/main/README.md` - [⚡ TypeScript Guide](./reference/node_mcp_server.md) - TypeScript patterns and examples **For Python:** - **Python SDK**: Use WebFetch to load `https://raw.githubuse

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Methodology note

SkillRadar scans SKILL.md as hostile text only. It does not execute commands, install packages, or load third-party skills.

View source SKILL.mdBack to changesView sources