Mutation with list of strings Variable "$_v0_data" got invalid value Graphql Node.js
The issue was in the resolver function apparently as I found here I have to assign the tags list within an object in the set argument like the code below
function addJob(parent, args, context, info) { return context.db.mutation.createJob( { data: { position: args.position, componay: args.company, date: args.date, url: args.url, description: args.description, tags: { set: args.tags } } }, info )}