Why can read -q not be used inside double brackets in zsh?

I have the following in my .zshrc:

#    if read -q; then
#        echo; zplug install
#    fi
     [[ read -q; ]] && echo; zplug install

The bit that is commented out worked, but I would prefer something on one line, so I attempted to use a less verbose form. Why does it not work?

I get /Users/brandon/.zshrc:62: parse error: condition expected: read.