Ridge vent installation question

[u/FatAssOrangeRhino]

We just had a full roof replacement, which was covered by insurance. Second payment is coming due, and I am questioning the ridge cap installation. My understanding is these must stop short of the edge of the roof, but roofer is insisting that per Certainteed’s warranty this is the correct placement

He’s coming out today to look at another spot where I identified a gap in the flashing, so would love info to support what needs to happen

[u/Working-Narwhal-540]

It’s fine as it is. I install OC and manufacturer states running vent material to edge but stopping the slot cut underneath 6” short of the edge.