LinkAssistant allows you to add a custom Meta Descriptions to your Link Directory pages. This can be done through your Link Directory template.
Open your LinkAssistant project, go to Preferences > Link Exchange Settings > Categories, and add a Category Description.
Next, open your link directory template(Preferences > Link Exchange Settings > Link Directory Templates > Edit > Code).
Find the following variable in the header:
and replace it with the following line (it's crucial that the punctuation is preserved!):
<[ECHO text="templateData.category.description" suppressEncoding="true"/]>
That's it. Once done, make sure to regenerate the template and upload the updated version to your website.