Spectral Rule: Paths must be in kebab case

Here is a spectral rule by Tyler Liu, which you can find here. Thanks Tyler!

rules:
  ensure-paths-kebab-case:
    description: Paths must be in kebab-case.
    message: '{{description}} (lower case and separated with hyphens)'
    formats: [oas3]
    type: style
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: "^(\/|[a-z0-9-.]+|{[a-zA-Z0-9]+})+$"

It will match

/products/{productId}
/products

It will not match

/products/{product-id}

You can try out the regex on https://regex101.com/ .