# Установка
sudo apt install yamllint
# или
pip3 install yamllint

yamllint playbook_delegate.yml
playbook_delegate.yml
  1:1       error    too many blank lines (1 > 0)  (empty-lines)
  2:1       warning  missing document start "---"  (document-start)
  4:11      warning  truthy value should be one of [false, true]  (truthy)
  11:1      warning  comment not indented like content  (comments-indentation)
  13:81     error    line too long (156 > 80 characters)  (line-length)
  18:13     warning  truthy value should be one of [false, true]  (truthy)
  19:81     error    line too long (155 > 80 characters)  (line-length)
  23:1      error    too many blank lines (3 > 0)  (empty-lines)