Can a "docs" indexoption feature available for autocomplete

An indexOption - “docs” is available for string type where the frequency and position of the indexed term are ignored. Is there a similar option for index type autocomplete. I need to restrict scoring where a field has a value repeated multiple times.

A custom analyzer for the string type that sets that option is one way to achieve what you’re after.

I recommend, however, doing autocomplete/suggest using the indexing and query techniques shown here: Relevant As-You-Type Suggestions Search Solution | MongoDB