mcp-builder

mcp-builder is a skill for Claude Code, Codex from raphaelmansuy/edgequake. It costs 0 tokens per session (343 once invoked), scanned A, original, Apache-2.0.

A project automation tool for building Model Context Protocol servers. MCP is a standard way for AI applications to connect to tools and data through defined interfaces.

In plain words
What is it for?
Scaffolding MCP projects in Rust, Python, or TypeScript; validating MCP compliance; generating documentation or code; and connecting servers with EdgeQuake or other retrieval-augmented-generation systems.
Why use it?
It reduces the setup work for a new MCP server and provides checks for whether its API, data formats, and endpoints follow the standard. It also creates repeatable build and test workflows.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/raphaelmansuy/edgequake/mcp-builder
Any agent
npx skills add raphaelmansuy/edgequake --skill mcp-builder
Clone the repo
git clone --depth 1 https://github.com/raphaelmansuy/edgequake

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mcp-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/raphaelmansuy/edgequake/mcp-builder.svg)](https://agentmods.dev/skills/raphaelmansuy/edgequake/mcp-builder)
Your own site
<a href="https://agentmods.dev/skills/raphaelmansuy/edgequake/mcp-builder"><img src="https://agentmods.dev/badge/skills/raphaelmansuy/edgequake/mcp-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 343 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00343
Opus 5 $0.00000 $0.00171
Sonnet 5 $0.00000 $0.00069
Haiku 4.5 $0.00000 $0.00034

Measured 4d ago against content hash 8e8491c529fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mcp-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 5 executable files (scripts/create-mcp-project.sh, scripts/validate_mcp.py, scripts/validate_mcp.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/skills/mcp-builder/SKILL.md · 45 lines

What it actually says

mcp-builder SKILL

Purpose

Automates the creation, validation, and management of Model Context Protocol (MCP) server projects. Provides standardized project scaffolding, build automation, and integration patterns for MCP-compliant services.

Features

  • Project scaffolding for MCP servers (Rust, Python, TypeScript, etc.)
  • Automated build and test workflows
  • Validation of MCP compliance (API, schema, endpoints)
  • Integration with EdgeQuake and other RAG frameworks
  • Documentation and code generation utilities

Usage

  1. Place this SKILL in .github/skills/mcp-builder/.
  2. Use the provided scripts and templates to scaffold new MCP projects:
    • scripts/create-mcp-project.sh
    • templates/ (starter code, config files)
  3. Run validation scripts to ensure MCP compliance.
  4. Integrate with CI/CD as needed.

Example Commands

# Scaffold a new MCP server in Rust
bash .github/skills/mcp-builder/scripts/create-mcp-project.sh --lang rust --name my-mcp-server

# Validate MCP compliance
python3 .github/skills/mcp-builder/scripts/validate_mcp.py --project my-mcp-server

Directory Structure

  • SKILL.md (this file)
  • scripts/ (automation scripts)
  • templates/ (starter project templates)
  • README.md (detailed usage)

References

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 45 lines · 0 tokens per session scan A 8e8491c529fa

Subscribe to this mod's changes

mcp-builder is a skill published in the GitHub repository raphaelmansuy/edgequake (2,084 stars, last pushed yesterday), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 343 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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