Are commands complete sentences?

This question seems to indirectly ask the question, but the upvoted answer says "the actual sentence is...". So my question is this: Are commands considered to be grammatically sound, complete sentences in the English language?

Some examples:

Go.

Add a note.

Do work.

The upvoted answer there actually says:

The subject (you) and helping verb (can) are implied

So yes, the above would be complete sentences. See also this question, in particular the upvoted and accepted answer for shortest complete sentence:

Go

People can nitpick about conversational colloquialisms and academic prose but most uses of a command will be understood as complete.

Linguists, who try to make rules that work across all languages, certainly consider commands to be complete sentences. The implied subject isn't a problem. Languages like Spanish omit the subject even for non-commands when it can be deduced from the verb or from the context, and those are still considered complete sentences. Japanese omits the subject even though the verb gives you no clue about it, but those are also considered complete sentences.

Generally, to establish a sentence as incomplete, you would offer a revision that made it complete. "Want to go with?" vs. "Want to go with me?" But how would one "complete" a sentence like "Go home now."