Unprotected climbing up the leftward-sweeping arete, with little to oppose the barndoor and bad footholds. The slopey rib offers some hope of compression, albeit highly insecure and with slipping feet. A fall could perhaps be survived with good rolling. It's low H8 to headpoint - an ascent without beta would be fairly ridiculous. Please don't risk damaging the route by placing cams in the crack.