{
  "approach": "Update the REGEX_ALPHANUMERIC constant in helpers.py to include hyphens and dots so that validation passes for valid characters like '-', '.', while still rejecting invalid ones like '/'. Ensure the regex allows alphanumerics plus '-' and '.' characters only.",
  "files_to_edit": [
    "src/cfnlint/helpers.py"
  ],
  "finish_reason": "stop",
  "hypothesis": "The regex pattern for validating mapping keys is missing support for hyphen ('-') and dot ('.'), which are allowed characters according to AWS documentation.",
  "retries": {},
  "usage": {
    "completion": 113,
    "prompt": 8039,
    "reasoning": 0
  }
}