speclock

local MCP server

Installation

Terminal

claude mcp add speclock -- npx -y speclock

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "speclock": {
      "command": "npx",
      "args": [
        "-y",
        "speclock"
      ]
    }
  }
}

AI Constraint Engine — enforces CLAUDE.md and .cursorrules as laws. 51 MCP tools.

speclock is a local MCP server distributed as the npm package speclock.

Run: claude mcp add speclock -- npx -y speclock

Run: codex mcp add speclock -- npx -y speclock

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