9hannahnine-jpg/arc-gate-mcp

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Runtime governance for MCP tool calls. Blocks prompt injection and capability abuse before tool results reach your agent.

автор: 9hannahnine-jpg

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Описание

Runtime governance for MCP tool calls. Blocks prompt injection and capability abuse before tool results reach your agent.

README

arc-gate-mcp MCP server

arc-gate-mcp

Runtime governance proxy for MCP tool calls. Blocks prompt injection and capability abuse before tool results reach your agent.

What it does

arc-gate-mcp sits between your MCP client and any MCP server. Every tool result passes through Arc Gate governance before reaching your agent — blocking prompt injection attacks that exploit the MCP trust boundary.

Installation

pip install arc-gate-mcp

Usage

arc-gate-mcp --upstream "uvx mcp-server-fetch" --policy balanced

With Claude Desktop

{
  "mcpServers": {
    "arc-gate": {
      "command": "uvx",
      "args": ["arc-gate-mcp", "--upstream", "uvx mcp-server-fetch", "--policy", "browser_agent"]
    }
  }
}

Policy modes

balanced — general purpose
browser_agent — web browsing agents
finance_agent — financial data agents
rag_assistant — document retrieval agents
strict — maximum enforcement

License

AGPL-3.0

Used with Heym

arc-gate-mcp is available as a template on Heym — an enterprise agent platform. Try the Governed Web Research Agent template to see Arc Gate MCP in action.

from github.com/9hannahnine-jpg/arc-gate-mcp

Установить 9hannahnine-jpg/arc-gate-mcp в Claude Desktop, Claude Code, Cursor

Рекомендуется · одна команда, все IDE

unyly install 9hannahnine-jpg-arc-gate-mcp

Ставит в Claude Desktop, Claude Code, Cursor и VS Code — сам разбирается с npx, uvx и сборкой из исходников.

Впервые? Поставь CLI: curl -fsSL https://unyly.org/install | sh

Или настроить вручную

Выполни в терминале:

claude mcp add 9hannahnine-jpg-arc-gate-mcp -- uvx arc-gate-mcp

FAQ