I have Qwen3.6 27B on PC-1 and Qwen3.6 35B on PC-2, So they can run parallel. Which roles should I assign to them for agent codng?

A user is seeking advice on assigning roles to two Qwen3.6 models, specifically a 27B version on PC-1 and a 35B version on PC-2, for parallel agent coding tasks. They are asking for recommendations on which model should handle planning, documenting, writing code, and writing and running tests, among other potential roles.