AI harness for writing a long document

mkdir -p book/drafts && cd book && git init
touch STYLE.md OUTLINE.md AGENTS.md drafts/01-intro.md drafts/02-problem.md

# Writing rules
- Read STYLE.md and OUTLINE.md before writing anything.
- Edit only the chapter file you're asked about, in drafts/.
- Keep the author's voice. Don't add headings, lists or summaries that aren't in the outline.
- Mark facts that need a source with [CITE] instead of inventing one.
- Report word count changes after each edit.

# Style
- Plain English. Short sentences. Active voice.
- Second person ("you"), no "we".
- No filler: "In today's world", "It's important to note".
- Numbers: digits for 10 and up.

read:
  - AGENTS.md
  - STYLE.md
  - OUTLINE.md

aider drafts/02-problem.md
# inside aider:
#   /diff   show what changed since your last message
#   /undo   discard the last change
#   /commit commit anything you edited by hand

---
name: editor
description: Reviews a chapter against STYLE.md and OUTLINE.md and returns numbered suggestions. Never edits.
tools: Read, Grep, Glob
---
Read STYLE.md, OUTLINE.md and the chapter you're given.
Return at most 15 numbered suggestions, each quoting the exact sentence
and saying why it breaks the style guide or the outline. Don't rewrite whole paragraphs.

{
  "$schema": "https://opencode.ai/config.json",
  "permission": {
    "edit": { "*": "deny", "drafts/*.md": "allow" },
    "bash": "ask"
  }
}