You can use the queryDef() function within your JS script to access things!
https://www.martechnotes.com/master-querydef-in-adobe-campaign/
Where they talk about picking a schema, you can just designate that you're using the temporary table created within your workflow by using vars.targetSchema, eg:
<queryDef schema={vars.targetSchema} operation="select">
You just need to find out the field names to populate your query, and then you have a huge XML object which you can iterate through to work with the recipient values.
