What is MCP-Server-Creator CLAUDE.md?

A set of project instructions for MCP Server Creator, a Python package that generates configurations and code for MCP servers. MCP servers are programs that provide tools or data to an AI assistant.

Use it when working on the MCP Server Creator repository, especially to understand its architecture, run development commands, or change its server and code-generation features.

It gives an AI coding assistant the project’s structure, key design choices, setup details, and development commands in one place.

How GongRzhe/MCP-Server-Creator configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to GongRzhe/MCP-Server-Creator. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/GongRzhe/MCP-Server-Creator/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/GongRzhe/MCP-Server-Creator

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/gongrzhe/mcp-server-creator/claude-md/github.svg)](https://agentmods.dev/instructions/gongrzhe/mcp-server-creator/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/gongrzhe/mcp-server-creator/claude-md"><img src="https://agentmods.dev/badge/instructions/gongrzhe/mcp-server-creator/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/gongrzhe/mcp-server-creator/claude-md"><img src="https://agentmods.dev/badge/instructions/gongrzhe/mcp-server-creator/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 671 This file is loaded in full into every session.

When invoked 671 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00671	$0.00671
Opus 5	$0.00336	$0.00336
Sonnet 5	$0.00134	$0.00134
Haiku 4.5	$0.00067	$0.00067

Measured 11d ago against content hash 5ea4102a3ffa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

MCP-Server-Creator CLAUDE.md 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 11d ago.

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.

CLAUDE.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

MCP Server Creator is a meta-MCP server that creates other MCP servers using FastMCP. It's a Python package that provides both programmatic APIs and MCP tools for dynamically generating complete MCP server configurations and Python code.

Core Architecture

The project consists of:

Main Module: mcp_server_creator/mcp_server_creator.py - Contains all MCP tools and core logic
Server Configurations: In-memory storage using dataclasses (ServerConfig, ToolConfig, ResourceConfig)
Code Generation: Template-based Python code generation for complete FastMCP servers
Entry Points: Both CLI script and FastMCP server entry points in pyproject.toml

Key architectural patterns:

Uses in-memory storage (servers dict) for managing server configurations during runtime
Dataclass-based configuration management with automatic imports tracking
Template-based code generation with proper indentation handling
Dual interface: MCP tools for interactive use + programmatic API for scripting

Development Commands

Installation & Setup

# Install in development mode
pip install -e .

# Install from PyPI
pip install mcp-server-creator

Running & Testing

# Run as MCP server
uvx mcp-server-creator
# OR
python mcp_server_creator/mcp_server_creator.py

# Run tests
python test_mcp_creator.py

Important Environment Variables

FASTMCP_LOG_LEVEL: Automatically set to INFO in the script. FastMCP 2.8.1+ requires uppercase values (DEBUG, INFO, WARNING, ERROR, CRITICAL).

Package Management

# Build package
python -m build

# Version is managed in pyproject.toml (currently 0.1.1)

MCP Tools Available

Server Management

create_server(name, description, version) - Creates new server config with auto-generated server_id
list_servers() - Lists all in-memory server configurations
get_server_details(server_id) - Get full configuration details

Read the full file on GitHub · 82 lines

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.

11d ago First seen · 82 lines · 671 tokens per session scan A 5ea4102a3ffa

Subscribe to this mod's changes

MCP-Server-Creator CLAUDE.md is an instructions file published in the GitHub repository GongRzhe/MCP-Server-Creator (41 stars, last pushed 1y ago), licensed MIT. It adds 671 tokens to every session, about $0.0034 per session on Opus 5. 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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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

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vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

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MCP-Server-Creator: Instructions file for Claude Code