Refer to @book/SUMMARY.md for a table of contents. Find a chapter that has not yet been written, then execute your /research-chapter, /plan-chapter, and /write-chapter skills for the chapter.

Validation after this process is complete:

- Make sure the chapter is concise, correct, and makes sense in context of the book
- Add tests to the tests directory
- Make sure that the project compiles and the tests complete