When forming commits, this is the rule of thumb I have: can the entire diff of a commit be understood and explained, both in content and intent, by its commit m

When forming commits, this is the rule of thumb I have: can the entire diff of a commit be understood and explained, both in content and intent, by its commit message, ideally by someone months or years from now? If not, the commit is not properly “atomic” or the message deficient in some way.