$ spectral lint petstore.yaml /work/petstore.yaml 2:6 warning info-contact Info object must have "contact" object. info 2:6 warning info-description Info "description" must be present and non-empty string. info 11:9 warning operation-description Operation "description" must be present and non-empty string. paths./pets.get 15:11 warning operation-tag-defined Operation tags must be defined in global