The message 1 is invalid: * The subject must start with a verb in imperative mood, but it started with: "Explicitly". Whether the word is in imperative mood is determined by whitelisting. The general whitelist is available at https://github.com/mristin/opinionated-commit-message/blob/master/src/mostFrequentEnglishVerbs.ts. You can whitelist additional verbs using "additional-verbs" input to your GitHub action (currently one or more additional verbs were thus specified). Moreover, you can also whitelist additional verbs in a file given as "path-to-additional-verbs" input to your GitHub action (currently no whitelist file was specified). Please check the whitelist and either change the first word of the subject or whitelist the verb. The original message was: Explicitly target macos and linux when conditionally compiling The message 2 is invalid: * Expected the subject to start with a verb in imperative mood consisting of letters and possibly dashes in-between, but the subject was: "fixup! Build wireguard-go via wireguard-go-rs on Windows". Please re-write the subject so that it starts with a verb in imperative mood. The original message was: fixup! Build wireguard-go via wireguard-go-rs on Windows