Items like clothes and hairstyles are not included in the prompts. Terms like '1girl' or '1boy' are already part of the prompt.
You'll need this extension to use wildcards: https://github.com/adieyal/sd-dynamic-prompts
I recommend you use this: https://civitai.com/models/611924/wildcard-gallery-extension
Based on images from Danbooru: https://danbooru.donmai.us/
Has been tested on Illustrious