You can use your playbooks immediately by creating and using them straight away!
Manual annotation is highly recommended, but not absolutely necessary to use a playbook for contract review.
The fine-tuning of requirements using test sets serves to optimize and significantly increase the accuracy of AI-based contract review by having the AI learn the specific legal nuances of the company.
Even without fine-tuning the requirements, your playbook can already serve as a user-friendly set of rules, and you can annotate later at any time if you want to increase the performance quality of the AI.