
Voice Analysis
- 394 installs
- 133 repo stars
- Updated February 24, 2026
- jwynia/agent-skills
voice-analysis is a Claude Code skill that extracts and documents a writer's distinctive voice patterns to produce a voice guide enabling consistent, authentic reproduction of their established writing style.
About
voice-analysis is a Claude Code evaluative utility skill (version 1.0, MIT) for fiction and content writers who need style consistency. The skill analyzes source writing samples to fingerprint tone, rhythm, vocabulary, sentence structure, and recurring patterns, then outputs a structured voice guide agents can follow when drafting new copy. Developers and technical writers reach for voice-analysis when ghostwriting, scaling content teams, or training agents to match a brand voice without generic AI phrasing. The skill emphasizes capturing what makes the source distinctive—not keyword lists—so reproduction sounds like the original author.
- Audio-to-insight pipelines
- Sentiment and intent signals
- Agent tool integration
- Transcript enrichment
- Multimodal QA
Voice Analysis by the numbers
- 394 all-time installs (skills.sh)
- +7 installs in the week ending Aug 2, 2026 (Skillselion tracking)
- Ranked #1,992 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
- Data as of Aug 5, 2026 (Skillselion catalog sync)
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| Installs | 394 |
|---|---|
| repo stars | ★ 133 |
| Last updated | February 24, 2026 |
| Repository | jwynia/agent-skills ↗ |
How do you document a writer's voice for AI reproduction?
Analyze spoken or recorded audio in agent workflows to extract tone, intent, sentiment, and transcript insights for product research, support triage, or content QA.
Who is it for?
Developers or editors who need agents to write consistently in a specific author's or brand's established voice.
Skip if: Developers analyzing spoken audio, call recordings, or speech sentiment—voice-analysis targets written prose style, not audio.
When should I use this skill?
A user needs to capture writing voice, analyze style, create a voice guide, or reproduce someone's established prose tone.
What you get
A structured voice guide with tone patterns, style fingerprints, and reproduction rules.
- voice guide document
- style fingerprint summary
By the numbers
- Ships as version 1.0 under MIT license
- Classified as an evaluative utility skill in the fiction domain
Files
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 |
Related skills
FAQ
What does voice-analysis output?
voice-analysis outputs a structured voice guide documenting tone, rhythm, vocabulary, and sentence patterns extracted from source writing. The guide enables agents to reproduce the author's established style instead of generic AI phrasing.
Is voice-analysis for audio or written content?
voice-analysis targets written prose style, not spoken audio. The skill fingerprints literary voice patterns—tone, diction, and structure—from text samples to build a reproducible writing guide.