Final answer:
The provided text does not contain information about an agreement between Atticus and Scout. In 'To Kill a Mockingbird', Atticus makes an agreement regarding Scout's reading, but the specific agreement from the question cannot be determined from the given excerpts.
Step-by-step explanation:
The agreement that Atticus makes with Scout is not explicitly detailed in the text snippets provided. In the context of Harper Lee's novel To Kill a Mockingbird, Atticus Finch makes several key agreements with his daughter, Scout. One significant one is that he agrees to let her continue reading with him at night as long as she continues to go to school, which is an agreement they reach after Scout has issues with her teacher regarding her advanced reading ability. However, since this context is not provided in the excerpts, we cannot ascertain which agreement the question refers to. Without additional information or a clearer reference to the specific agreement from the literary work in question, it is not possible to provide an accurate and precise answer.