This is a template of a Job brief created by Homerun. Find a filled-in example of this document here. For guidance on how to use this document and make your own have a look at Creating your first hiring process: a complete guide.
Add links to similar open vacancies at companies you admire
Decide on some basic info like job title, salary and how much you'd like to spend to promote the job.
List the responsibilities the person in this role will have.
A list of the traits, skills and experience you'd like the candidate to have.