The antonyms for the phrase "cutting shreds" could be "mending whole". This phrase suggests the act of repairing and making something complete again, as opposed to tearing it apart. Other antonyms could be "constructing united", meaning to build and connect different parts together as opposed to destroying them. "Preserving intact" would also be an antonym, signifying the act of keeping something whole and undamaged. The opposite of "cutting shreds" can also be expressed with the word "healing", which implies repairing and improving a damaged or broken object, rather than causing further damage.