The [report-message-format](https://github.com/not-an-aardvark/eslint-plugin-eslint-plugin/blob/master/docs/rules/report-message-format.md) only applies to violation messages, but not suggestion messages. As a breaking change, we should update it to apply to both violation and suggestion messages. ``` report-message-format: ['error', '^[A-Z].*\\.$'] ``` As a follow-up (non-breaking change), we could add object-based options to the rule to allow separate violation/suggestion message requirements: ``` report-message-format: ['error', { error: '^[A-Z].*\\.$', suggestion: '^[A-Z].*\\.$' }] ```