Extract a writing voice as reproducible rules

Extract the rules of this writing voice so it can be reproduced.

***Do not describe the tone in adjectives.*** **"Friendly but professional" is not reproducible.** Extract rules that can be checked.

**Extract:**
1. **Sentence length** — average, and how much it varies
2. **Sentence endings** — which forms appear, which never do
3. **Person and distance** — how the writer refers to themselves and the reader
4. **Vocabulary register** — plain or technical, and **the specific words this voice uses where another would use a different one**
5. **What it never does** — ***the strongest rule.*** No exclamation marks, no rhetorical questions, no apologizing, no hedging
6. **Paragraph rhythm** — how long, how they open
7. **How it handles uncertainty** — the specific phrasing used when the writer is not sure

**Output:**
- The rules as a checkable list
- **Three sentences rewritten in this voice**, with the rule each one demonstrates
- ***Which rules are essential and which are incidental.*** *Copying incidental habits produces parody*
- **Where the voice would not work** — a register that reads well in one context and badly in another