$npx -y skills add epicsagas/Velith --skill book-nonfictionNon-fiction patterns — problem-solution structure, learner personas, evidence hierarchy, argument structure, chapter template.
| 1 | # Non-Fiction Patterns |
| 2 | |
| 3 | **Chapter template**: Hook(empathy) → Problem(why it matters) → Evidence(proof) → Framework(solution model) → Application(concrete examples) → Summary(3 points + bridge). |
| 4 | |
| 5 | **Learner levels**: Novice ("Why?" · analogies) → Competent ("How?" · real scenarios) → Expert (root causes · edge cases). |
| 6 | |
| 7 | **Evidence hierarchy** (high→low): Research(peer-reviewed) → Data(statistics) → Case Study(3+) → Experience(post-mortems) → Anecdote(empathy only). Core claims require Data+. |
| 8 | |
| 9 | **Argument**: Claim(what) + Warrant(why valid) + Impact(so what). Strong = Claim + multiple Warrants + specific Impact. |
| 10 | |
| 11 | **Callouts** (≤3/chapter): Tip · Warning · Example · Exercise. |
| 12 | |
| 13 | **Difficulty gradient**: ▁▂▃ Intro → ▃▄▅ Basics → ▅▆▇ Practice → ▇▇██ Advanced. First chapter of each part slightly easier than last of previous. |