Under normal circumstances, the Seller's responsibility is no different than with a Conventional or FHA loan:
The VA (and FHA) Inspections tend to be a little stricter, particularly with regard to Health and Safety Issues; these, if any, will come out with the Inspection report.
But everything will hinge, (as it always does) on the working of the CONTRACT:
The Buyer can request that the Seller pay for certain repairs or Closing Costs; which is negotiable.
The Buyer can also inflate the Buying price to compensate the Seller for this difference; as long as the Appraisal will cover the amount of the loan.
Your Realtor should be able to explain all this to you.