You don't need the originals for proof of US Citizenship. So no need to send your US Passport or Naturalization Certificate.
Also, you don't need originals for the AoS. You'll need a copy of the form, W2, and Tax Transcript (or Tax Return).
The only originals that are required are Birth Certificates for the petitioner and Birth Certificate/Marriage Certificate for beneficiary.
Each embassy/consulate has a checklist of documents to bring to the interview, double check everything on their website.
You can also check the embassy/consulate page here at VJ., there's usually helpful information there. However, take it with a grain of salt as it might be outdated.