Extract and document someone's authentic writing voice from samples. Use when someone needs a "voice guide," wants to capture their writing DNA, or needs to train AI to write in their style. Also useful for ghostwriting, brand voice documentation, or onboarding writers.
AI-generated content all sounds the same. The fix isn't better prompts — it's teaching the AI how you actually communicate.
This skill extracts your communication DNA from writing samples and produces a Voice Guide: documented, tested, and ready to use.
Detect from context or ask: "Quick voice snapshot, full Voice Guide, or full guide with examples?"
| Mode | What you get | Best for |
|---|---|---|
quick | Top 5 voice characteristics + 3 do/don't rules | Fast style reference, single piece |
standard | Full Voice Guide: tone, vocabulary, rhythm, structure | AI training, ghostwriting, brand documentation |
deep | Full Voice Guide + 10 sample rewrites + writing rules checklist + AI training examples | Onboarding writers, building a brand voice system |
Default: standard — use quick if they just need a fast reference. Use deep if they're onboarding a ghostwriter or building a content team.
Before extracting, collect:
Sample priority (most → least authentic):
Minimum sample gate: If samples total under 500 words, stop:
"These samples are too short to extract reliable patterns. Please add 2-3 more — emails, Slack messages, or transcripts work best. The messier and more casual, the better."
Do not attempt full extraction from under 500 words. Offer quick mode instead.
Before extracting, reason through:
Output a sample assessment:
"I have [X samples / Y words] to work with. Quality: [high/medium — why]. I'll use [full/quick] mode. Excluding: [any patterns and why]."
Identify the fundamental communication mode:
Role:
Default energy:
Recurring themes: What topics appear unprompted across samples? These are the things they actually care about.
Scan all samples and extract:
Transition phrases (how they shift topics):
Emphasis phrases (how they land a point):
Closers (how they wrap up):
| Zone | Description | Language Markers |
|---|---|---|
| Full authority | Topics they're an expert in | No hedging, definitive statements, "here's what works" |
| Earned perspective | Topics with experience but not mastery | "In my experience...", "What I've found..." |
| Active exploration | Topics they're learning now | "I'm testing this...", "What I'm seeing..." |
Map their stated expertise areas to each zone. This calibration is what makes the voice feel real vs. one-dimensional.
Extract what they'd NEVER say:
Source these from sample evidence where possible: "You never used [word] across [X samples] — it doesn't fit your voice."
After extracting the full profile, generate 2 test sentences on the same topic:
Version A (using the extracted voice profile):
"[Sample sentence in their voice]"
Version B (wrong voice — contrasting example):
"[Same content, different voice — shows what to avoid]"
Ask the user: "Does Version A actually sound like you when you're not overthinking it? What feels off?"
This validation catches extraction errors before the guide is put into production.
--quick)When samples are thin (300–500 words) or time is short:
Output: Minimum viable voice guide.
Difference from full mode:
After generating the Voice Guide:
Flag any issues: "The anti-pattern section only has 2 entries — not enough for a usable guide. I need more samples or direct input from the user."
## Voice Guide: [Name] — [Date]
### Sample Assessment
- Samples: [count, types]
- Total words: [count]
- Quality: [high/medium — reason]
- Mode: [quick/full]
- Excluded: [patterns excluded + why]
---
### Core Energy
- Role: [teacher/challenger/cheerleader/straight-shooter]
- Default energy: [description]
- Recurring themes: [list]
### Signature Phrases
**Transitions:**
- "[Phrase]" (source: [email/post])
- "[Phrase]"
**Emphasis:**
- "[Phrase]" (source: [email/post])
**Closers:**
- "[Phrase]"
### Confidence Calibration
**Full authority (no hedging):**
Topics: [list]
Sounds like: "[example sentence]"
**Earned perspective:**
Topics: [list]
Sounds like: "[example sentence]"
**Active exploration:**
Topics: [list]
Sounds like: "[example sentence]"
### Anti-Patterns (Never Use)
- [Word/phrase] — why: [evidence from samples]
- [Word/phrase] — why: [evidence]
### Validation Test
**This sounds like you:**
"[Version A]"
**This doesn't:**
"[Version B — contrast]"
### Self-Critique Notes
[Any gaps, things to validate with user]
### Usage Instructions
- For AI: Paste this guide into your system prompt
- For ghostwriter: Share on day 1 — cuts revision cycles in half
- For team: This is the benchmark for "on brand"
Skill by Brian Wagner | AI Marketing Architect | brianrwagner.com