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Get Started Free →Design and pressure-test useful nonfiction book promises, scopes, recommendation loops, and takeaway-first tables of contents before drafting. Use when planning, outlining, scoping, restructuring, validating, or testing a practical book, guide, manual, course-like book, or other reader-outcome-focused long-form nonfiction.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 31% | 0% |
| case-02 | ✗→✓ | ▲ Improved | -29% | 0% |
| case-03 | ✗→✓ | ▲ Improved | -16% | 0% |
| case-09 | ✗→✓ | ▲ Improved | 85% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 123% | 0% |
Treat a useful nonfiction book as a problem-solving product for a specific reader. The table of contents is the product design, not a decorative outline. Build and test the promise, scope, recommendation loop, and TOC before drafting so the manuscript has a clear job and useful progression.
Use this skill to produce or improve a book plan that answers:
situation?
Load only the files needed for the task:
| Need | Read | | --- | --- | | Core model, DEEP, promise, scope, recommendation loop | references/core/knowledge.md | | Concrete planning and validation rules | references/core/rules.md | | Before/after examples for scope and TOC titles | references/core/examples.md | | Quick planning and review checklist | references/core/checklist.md | | Step-by-step TOC design before drafting | workflows/design-toc.md | | Step-by-step TOC validation with readers | workflows/validate-toc.md |
why this book is the obvious fit.
and integration.
steps, boredom risk, confusion risk, skepticism, and recommendability.
When asked to create or improve a TOC, return:
boredom.
A good TOC should feel useful even before the book exists. A reader should be able to scan it and understand what the book helps them accomplish, whether it is for them, and why the chapter sequence makes sense.
Do not optimize for literary cleverness before usefulness. Clever titles are acceptable only after the reader promise and chapter takeaways are obvious.
Other measured skills in the registry, with their headline benchmark lift.