claude-plugins-official/plugins/ralph-loop/hooks/hooks.json

{
  "description": "Ralph Loop plugin stop hook for self-referential loops",
  "hooks": {
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "${CLAUDE_PLUGIN_ROOT}/hooks/stop-hook.sh"
          }
        ]
      }
    ]
  }
}