extends: metric
message: "Try to keep the Coleman–Liau Index grade (%s) below 9."
link: https://en.wikipedia.org/wiki/Coleman%E2%80%93Liau_index

formula: |
  (0.0588 * (characters / words) * 100) - (0.296 * (sentences / words) * 100) - 15.8

condition: "> 9"