Slaney won the British bouldering title in Sheffield this year and added the World Junior title just four weeks ago.
She is one of nine members of the team that is missing injured Shauna Coxsey, rated one of the world’s best climbers.
BBC Sport will show the final four days from Innsbruck on the BBC website, sport app and connected television.
With climbing accepted for the next Olympic Games this will be the best chance this year for the British team to test themselves in competition over the Olympic course.
Lead and speed climbing and bouldering are the three elements that will be featured in the Olympics.
Slaney took the British title in Sheffield in July in another tournament streamed by the BBC.
Great Britain’s full team is Jim Pope, Will Bosi, Billy Ridal, Nathan Phillips, Aidan Roberts, Matt Cousins, Molly Thompson-Smith, Jenifer Wood and Hannah Slaney.