Melissa shook her head to that request as “your tuning of the piano turned Brahms Wiegenlied into a bass song, so I’d rather not have your help.”
this sentence should not trigger the your vs you’re rule. (I think you should test for VERB + ‘of’)
I could not correct this problem. Refer to the new examples in the first rule in rulegroup id=“YOUR” ([en] Improve disambiguation PRPPOSS_VB_NN_VBZ and grammar YOUR · languagetool-org/languagetool@ded5d77 · GitHub).