home / skills / jwynia / agent-skills / voice-analysis

This skill helps extract a writer's distinctive voice patterns to generate a precise voice guide for authentic, consistent writing.

npx playbooks add skill jwynia/agent-skills --skill voice-analysis

Review the files below or copy the command above to add this skill to your agents.

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---
name: voice-analysis
description: "Extract and document a writer's distinctive voice patterns for consistent reproduction. Use when you need to capture writing voice, analyze writing style, create a voice guide, or write in someone's established style. Keywords: voice, tone, style, writing analysis, fingerprint."
license: MIT
metadata:
  author: jwynia
  version: "1.0"
  type: utility
  mode: evaluative
  domain: fiction
---

# Voice & Tone Analysis

## Purpose

Extract and document a writer's distinctive voice patterns for consistent reproduction. Creates a "voice guide" that enables authentic writing that sounds like the source, not a generic approximation.

## Core Principle

**Capture spirit, not just mechanics.** The goal is writing that makes the source say "yes, that's me" not "I guess that's accurate."

---

## Phase 1: Sample Collection

### Gather 5-10 Examples from Each Category

**Peak Voice** - Writing they identify as "most them"

**Off-Voice** - Writing that doesn't represent them well

**Different Contexts:**
- Technical/instructional content
- Persuasive/argumentative pieces
- Narrative/storytelling
- Casual communication (emails, messages)
- Formal communication
- Emotional/vulnerable content

### Self-Report Prompts

**Rewrite Exercise:**
Ask: "Rewrite this neutral paragraph in your voice:"
> "The new policy will be implemented next month. It includes several changes to current procedures. Employees should review documentation and submit questions by the deadline."

**Rule Breaking:**
"What writing 'rules' do you consistently ignore? Why?"

**Pet Peeves:**
"What writing choices immediately signal something wasn't written by you?"

**Evolution:**
"How has your writing changed in 5 years? What stayed constant?"

---

## Phase 2: Linguistic Analysis

### Sentence Level

| Pattern | What to Track |
|---------|---------------|
| Average length | Words per sentence |
| Range | Shortest to longest |
| Fragments | Usage frequency, contexts |
| Run-ons | Tendency, intentionality |
| Opening patterns | How sentences typically start |
| Closing patterns | How sentences typically end |

### Paragraph Architecture

| Element | What to Track |
|---------|---------------|
| Average length | Sentences per paragraph |
| Topic sentences | Beginning, middle, end, absent |
| Transitions | Explicit words, implicit flow, abrupt |
| Information order | Build-up, front-load, circular |

### Punctuation Signature

| Mark | Track Usage Pattern |
|------|---------------------|
| Em dash | Interruption, emphasis, list, asides |
| Parentheses | Frequency, content type |
| Semicolon | Presence, absence, alternative |
| Ellipsis | Trailing, pause, omission |
| Exclamation | Frequency, contexts |
| Rhetorical questions | Frequency, function |

---

## Phase 3: Lexical Fingerprinting

### Word Choice Matrix

| Category | Preferred | Avoided | Signature Examples |
|----------|-----------|---------|-------------------|
| Technical terms | | | |
| Colloquialisms | | | |
| Intensifiers | very, extremely, quite... | | |
| Hedging | perhaps, might, seems... | | |
| Abstract/concrete | | | |

### Register Analysis

- [ ] Consistent register (formal/informal throughout)
- [ ] Deliberate register mixing (formal content, casual asides)
- [ ] Context-dependent shifting (formal for X, casual for Y)

### Recurring Constructions

List phrases/patterns appearing 3+ times:
1. ___
2. ___
3. ___

---

## Phase 4: Conceptual DNA

### Metaphor Mapping

| Source Domain | Target Domain | Example | Frequency |
|---------------|---------------|---------|-----------|
| (war, journey, building...) | (ideas, processes...) | | |

### Reference Pool

- **Cultural touchstones:** (movies, books, memes, history...)
- **Time period:** (contemporary, 90s, classic...)
- **Accessibility level:** (mainstream, niche, insider)
- **Domains drawn from:** (sports, cooking, science...)

### Reasoning Patterns

Rate 1-5 for prevalence:
- [ ] Analogical reasoning (like X, therefore Y)
- [ ] First principles (from basics up)
- [ ] Empirical evidence (data, studies)
- [ ] Personal anecdote (I experienced...)
- [ ] Hypotheticals (imagine if...)
- [ ] Socratic questioning (but what if...?)

---

## Phase 5: Emotional Texture

### Enthusiasm Spectrum

| Low | Medium | High |
|-----|--------|------|
| (understated) | (balanced) | (expressive) |

### Criticism Styles

| Style | When Used | Markers |
|-------|-----------|---------|
| Direct | | "This is wrong because..." |
| Diplomatic | | "One consideration might be..." |
| Humorous | | "Well, that's one way to..." |
| Analytical | | "The issue breaks down to..." |

### Vulnerability Patterns

- **Admission phrases:** "I'll admit...", "honestly..."
- **Uncertainty markers:** "I think...", "not sure but..."
- **Personal revelation style:** Direct? Buried in humor? Rare?

---

## Phase 6: Reader Dynamics

### Positioning

The writer positions as:
- [ ] Expert/teacher (I know, let me explain)
- [ ] Peer/collaborator (we're figuring this out together)
- [ ] Student/learner (I'm working through this)
- [ ] Challenger/provocateur (conventional wisdom is wrong)
- [ ] Guide/facilitator (here's how to navigate)

### Assumed Context

- **Shared knowledge level:** Assumes expertise? Explains basics?
- **Cultural assumptions:** In-group references? Universal?
- **Relationship warmth:** Distant professional? Familiar?

### Interactive Patterns

- Questions per 1000 words: ___
- Direct address frequency ("you"): ___
- Imperative usage (commands): ___
- Inclusive language ("we/us"): ___

---

## Phase 7: Voice Guide Synthesis

### Core Voice Statement
_In 2-3 sentences, capture the essence:_

### The Rules That Matter Most

**Always:**
-

**Never:**
-

**Usually, unless:**
-

### Sentence Construction Guide

- **Preferred length:**
- **Variety pattern:**
- **Opening moves:**
- **Power positions:** (where key info lands)

### Word Selection Principles

- **Go-to words for [concept]:**
- **Banned words/phrases:**
- **Register rules:**

### Structural Signatures

- **Paragraph rhythm:**
- **Transition style:**
- **Information architecture:**

### Emotional Register

- **Default tone:**
- **Excitement expression:**
- **Criticism approach:**
- **Vulnerability threshold:**

### The Litmus Test

A piece captures this voice when:
1.
2.
3.

### Red Flags

Definitely NOT this voice when:
1.
2.
3.

---

## Phase 8: Validation

Before finalizing the voice guide:

- [ ] Can identify the author in a blind test?
- [ ] Guided writing feels authentic, not performative?
- [ ] Patterns are descriptive, not prescriptive?
- [ ] Captures spirit, not just mechanics?
- [ ] Source would say "yes, that's me"?

---

## Quick Reference Template

### In Every Piece
-
-
-

### The Heart of the Voice
_[Single paragraph essence]_

### Emergency Voice Recovery
When writing has gone generic, add:
1.
2.
3.

---

## Usage Notes

### For AI Writing
Once the voice guide is complete, include relevant sections in the prompt to guide generation toward authentic voice reproduction.

### For Self-Analysis
Writers can use this framework to understand their own voice, identify what makes their writing distinctive, and consciously apply those patterns.

### For Editing
Use the voice guide as a checklist when editing to ensure consistency and authenticity.

---

## Anti-Patterns

### 1. Mechanics Over Spirit
**Pattern:** Cataloging every linguistic feature without understanding what makes the voice feel distinctive.
**Why it fails:** A perfect inventory of word frequencies and sentence lengths can produce writing that's technically accurate but feels like a parody. Voice is gestalt, not components.
**Fix:** Start from "what makes this voice feel like this?" Work backward to mechanics. The inventory serves understanding; understanding doesn't emerge from inventory alone.

### 2. Single-Context Capture
**Pattern:** Analyzing voice from one type of writing, then applying it to all contexts.
**Why it fails:** Writers shift voice across contexts. Technical writing voice differs from casual email voice. Capturing one context and forcing it everywhere creates uncanny artifacts.
**Fix:** Sample across contexts. Map how voice shifts. Include context-switching rules in the voice guide. Understand which elements are constant vs. context-dependent.

### 3. Frequency as Rule
**Pattern:** If they use em-dashes 8% of the time, the voice guide prescribes 8% em-dash usage.
**Why it fails:** Frequency is a statistical average, not a style rule. Forced frequency creates awkward placement. Natural writers don't count punctuation.
**Fix:** Understand when they use em-dashes, not how often. "Uses em-dashes for dramatic interjections, rarely for lists" is actionable. "8% em-dashes" is not.

### 4. Imitation Artifacts
**Pattern:** Voice-guided writing that feels like someone doing an impression—technically accurate but overperformed.
**Why it fails:** Distinctive features become tics when isolated. Real voice balances distinctive and neutral. Guides that catalog only distinctive features produce caricature.
**Fix:** Include neutral baseline alongside distinctive features. Most sentences should sound natural, with distinctive features emerging at appropriate moments, not constantly.

### 5. Frozen Voice
**Pattern:** Treating the voice guide as permanent, not updating as the writer evolves.
**Why it fails:** Writers change. A voice guide from 2020 may not fit 2025 writing. Using outdated guides produces writing that feels like an old version of the person.
**Fix:** Note the capture date. Plan periodic updates. Include the writer's own reflections on how their voice has evolved. Treat the guide as living documentation.

## Integration

### Inbound (feeds into this skill)
| Skill | What it provides |
|-------|------------------|
| (writing samples) | Raw material for analysis |
| prose-style | Sentence-level craft framework for analysis |

### Outbound (this skill enables)
| Skill | What this provides |
|-------|-------------|
| prose-style | Voice-specific sentence construction guidance |
| dialogue | Voice patterns for character speech |
| (AI generation) | Voice guides for consistent AI-assisted writing |

### Complementary
| Skill | Relationship |
|-------|--------------|
| prose-style | Voice-analysis captures what; prose-style provides how. Use voice-analysis first to understand the target, then prose-style to achieve it |
| dialogue | Voice-analysis for authorial voice; dialogue skill for character voices within fiction |

Overview

This skill extracts and documents a writer's distinctive voice patterns so others — humans or AI — can reproduce that voice reliably. It produces a concise voice guide that captures the spirit, recurring moves, and context-dependent shifts rather than a dry inventory of features. The result is usable rules, examples, and red flags to keep writing authentic, not caricatured.

How this skill works

Collect representative samples across contexts (peak voice, off-voice, technical, persuasive, narrative, casual, formal, emotional). Perform linguistic, lexical, and conceptual analyses: sentence and paragraph architecture, punctuation signatures, preferred word choices, metaphor and reasoning patterns, and emotional texture. Synthesize findings into a compact voice guide with dos/don'ts, sentence construction rules, and validation checks.

When to use it

  • Capturing an author's established voice for consistent content creation
  • Preparing prompts for AI to write in a specific person's style
  • Creating an editor checklist to preserve voice across revisions
  • Onboarding collaborators who must match a brand or individual's tone
  • Diagnosing why reproduced voice feels like a parody

Best practices

  • Sample broadly across contexts and collect 5–10 examples per category
  • Focus on the spirit and function of patterns, not raw frequency counts
  • Document context-switch rules so voice shifts naturally between formats
  • Validate with blind tests and guided writing to ensure authenticity
  • Treat the guide as living; schedule periodic updates with new samples

Example use cases

  • Generate a short blog post that a specific author would approve
  • Create a prompt bundle for an AI assistant to draft customer emails in brand voice
  • Train editors to recognize and restore missing voice elements during revision
  • Map how a writer's tone differs between technical docs and personal essays
  • Audit candidate copy to flag pieces that fail the 'would they say this?' litmus test

FAQ

How many samples do I need for a reliable guide?

Aim for 5–10 examples in each key context to capture consistent and context-dependent patterns.

Will the guide force exact mimicry and create caricatures?

No. The guide emphasizes spirit, context rules, and power positions so writing feels authentic rather than an overperformed impression.