[
  {
    "tool_name": "read_file",
    "arguments": {
      "file_path": "${args.topics_dir}/index.json"
    }
  },
  {
    "tool_name": "execute_shell_command",
    "arguments": {
      "command": "cat '${args.topics_dir}/${args.group}/${args.subtopic}/meta.json' 2>/dev/null || echo '{\"tags\": []}'"
    }
  },
  {
    "tool_name": "execute_shell_command",
    "arguments": {
      "command": "cat '${args.topics_dir}/${args.group}/${args.subtopic}/${args.question_type}.json' 2>/dev/null || echo '{\"questions\": []}'"
    }
  }
]