Hook Conformance MCP Server: Install & Setup

Install Hook Conformance in Claude Code

Claude Code

claude mcp add hook-conformance -- npx -y mcp-hook-conformance

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "hook-conformance": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-hook-conformance"
      ]
    }
  }
}

Frequently asked questions

What does the Hook Conformance MCP server do?

Audits MCP servers for Claude Code mcp_tool hook readiness: idempotency, latency, side-effects.

Is the Hook Conformance MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Hook Conformance run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Hook Conformance to Claude Code?

Run: claude mcp add hook-conformance -- npx -y mcp-hook-conformance

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