1.install

# npm install -g @stoplight/spectral-cli

2.設定

# echo '{\n\t"extends": ["spectral:oas"]\n}' > .spectral.json

3.version

# spectral --version
6.5.0
#

4.lint 実行

# spectral lint openapi.yml
No results with a severity of 'error' found!#

5.上の結果
Excuteのbuttonが押せない理由が表示されない

# spectral lint openapi.yml -F warn
No results with a severity of 'warn' or higher found!#
# spectral lint openapi.yml -F error
No results with a severity of 'error' found!#
# spectral lint openapi.yml -F info
No results with a severity of 'info' or higher found!#
# spectral lint openapi.yml -F hint
No results with a severity of 'hint' or higher found!#

6. 代わりに、Swagger/OpenAPI online validatorを使う
https://apitools.dev/swagger-parser/online/
– After pasting, just press the [Validate it!].
– result

bad indentation of a mapping entry at line 173, column 16:
               name: contactType
                   ^

Error: bad indentation of a mapping entry at line 173, column 16:
               name: contactType
                   ^

– Excuteのbuttonが押せない原因の行を指示