My setup uses the pylint linter with specific severity overrides.
For example, we disabled the "protected access" rule with this (simplified) json bit in .arclint

linters {
  ...
  "pylint": {
    ...
    "severity": {
      "W0212": "disabled"
    }
  },
  ...
}

However, "W0212" isn't very descriptive and I'd like to add a comment describing what it means and why we chose to disable it. The json format doesn't support comments, so not sure of a supported way to do this.