mcp-builder

mcp-builder is an MCP server development skill for AI agents, published by ComposioHQ in the awesome-claude-skills repository on GitHub. Skillspace rates mcp-builder D (65/100) and it passed the safety scan; a judge model has also reviewed it.

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).

Grade
D
Quality
65 / 100
Safety
Passed
GitHub stars
74,946

Placed #5 of 6 in the judged category final for MCP server development.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

View source on GitHubComposioHQ/awesome-claude-skills

Our review

Architecture
90 / 100
Maturity
Basic: a single SKILL.md
Security scan
Low-risk patterns
License
Not declared. Check the repository before reusing it.

Judge review

Placed #5 of 6 in the judged category final for MCP server development.

  • Trigger8484
  • Instructions8383
  • Specificity7474
  • Safety7272
  • Disclosure8888
  • Maintenance7070
A well-organized four-phase workflow that properly delegates to per-language reference files, but the visible content is mostly generic best-practice prose rather than concrete steps.
Phase-based workflow with named principles (build for workflows, optimize for limited context, evaluation-driven development) and language-specific reference files; identical in every visible respect to the other candidate.

What the scanner flagged

  • mentions secrets in text

Not checked yet

  • Category is a classifier prediction; no model has read this skill yet
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

Better-rated skills in MCP server development

Also published in 1 other repo

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