MCPInstall

voice-extractor

Extract voice patterns from transcripts - speaking style, phrases, vocabulary for authentic author profiles

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/mwguerra/claude-code-plugins --skill voice-extractor
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads voice-extractor automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Voice Extractor

Extract authentic voice characteristics from transcripts to enhance author profiles.

Purpose

Transform transcript data (podcasts, interviews, meetings, videos) into actionable writing guidelines that capture an author's authentic voice, making AI-generated content sound natural and personal.

When to Use

  • Author has recordings/transcripts of themselves speaking
  • Want to capture authentic speaking patterns
  • Need to enhance a manually-created author profile
  • Building a new author profile from scratch using transcripts
  • Refining an existing profile with more data

Workflow

1. Prepare Transcripts

Accept transcripts in these formats:

  • Plain text: Speaker: text
  • Timestamped: [00:01:23] Speaker: text or 59:54 Speaker: text
  • Bracketed: [Speaker]: text
  • WhatsApp: [17:30, 12/6/2025] Speaker: text
  • SRT subtitles: Standard subtitle format

If user provides audio/video without transcript: Suggest transcription services:

  • YouTube auto-captions (downloadable)
  • Otter.ai, Descript
  • OpenAI Whisper (local)
  • Rev.com

2. Run Analysis

# List speakers in transcript
bun run "${CLAUDE_PLUGIN_ROOT}"/scripts/voice-extractor.ts --list-speakers transcript.txt

# Extract for specific speaker
bun run "${CLAUDE_PLUGIN_ROOT}"/scripts/voice-extractor.ts --speaker "Name" transcript.txt

# Multiple transcripts (more data = better profile)
bun run "${CLAUDE_PLUGIN_ROOT}"/scripts/voice-extractor.ts --speaker "Name" t1.txt t2.txt t3.txt

# Output JSON for direct use with author profiles
bun run "${CLAUDE_PLUGIN_ROOT}"/scripts/voice-extractor.ts --speaker "Name" --json transcript.txt

3. Enhance Author Profile

The extracted data enhances these author fields:

Extracted DataMaps To
Communication styletone.formality, tone.opinionated
Characteristic expressionsphrases.signature
Sentence startersphrases.signature
Signature vocabularyvocabulary.use_freely
Speaking stylenotes

4. Manual Enhancement

After automated extraction, read transcript samples to identify:

  • Unique phrases: Catchphrases missed by frequency analysis
  • Humor style: Sarcasm, self-deprecation, wit patterns
  • Story structure: How they set up anecdotes
  • Cultural markers: Regional expressions, analogies
  • Topic emphasis: What makes them animated

What Gets Extracted

Sentence Structure

  • Average sentence length
  • Variety (short/moderate/long/complex)
  • Question frequency

Communication Style

  • Enthusiasm (love, amazing, awesome)
  • Hedging (maybe, perhaps, I think)
  • Certainty (definitely, absolutely)
  • Empathy (understand, appreciate)
  • Directness (need to, must, bottom line)
  • Storytelling (so, and then, eventually)
  • Analytical (because, therefore, however)

Characteristic Expressions

  • Fillers: "you know", "I mean", "like", "right"
  • Hedgers: "kind of", "sort of", "I guess"
  • Emphatics: "honestly", "literally", "definitely"

Vocabulary

  • Signature words used frequently
  • Vocabulary richness percentage

Integration with Author Profile

New Author from Transcript

# 1. Extract voice data
/article-writer:author analyze --speaker "John" transcripts/*.txt

# 2. Review and confirm extraction
# Claude will show extracted patterns

# 3. Add identity info
/article-writer:author add
# Answer: name, role, expertise, languages

# 4. Merge voice data
# Claude will combine extracted + manual data

Enhance Existing Author

# 1. Extract from new transcripts
/article-writer:author analyze --speaker "John" --author-id mwguerra new_podcast.txt

# 2. Review changes
# Claude shows what will be updated

# 3. Confirm merge
# Voice analysis data added to existing profile

Output Format

JSON Output (for merging)

{
  "voice_analysis": {
    "extracted_from": ["podcast_ep1.txt", "interview.txt"],
    "sample_count": 156,
    "total_words": 12450,
    "sentence_structure": {
      "avg_length": 14.5,
      "variety": "moderate length, conversational",
      "question_ratio": 12.3
    },
    "communication_style": [
      { "trait": "enthusiasm", "percentage": 28.5 },
      { "trait": "analytical", "percentage": 24.1 },
      { "trait": "directness", "percentage": 18.7 }
    ],
    "characteristic_expressions": [
      "you know",
      "I think",
      "the thing is",
      "at the end of the day"
    ],
    "sentence_starters": [
      "I think",
      "So the",
      "And then",
      "But the"
    ],
    "signature_vocabulary": [
      "actually",
      "basically",
      "approach",
      "strategy",
      "implementation"
    ],
    "analyzed_at": "2025-01-15T10:00:00Z"
  },
  "suggested_updates": {
    "tone": {
      "formality": 5,
      "opinionated": 7
    },
    "phrases": {
      "signature": ["you know", "the thing is", "at the end of the day"]
    },
    "vocabulary": {
      "use_freely": ["approach", "strategy", "implementation"]
    }
  }
}

Markdown Report

# Voice Analysis: John Smith

*Analyzed 156 speaking turns, 12,450 words*

## Speaking Style
- **Sentence length**: Moderate (~14 words avg)
- **Questions**: Uses questions occasionally (12%)
- **Vocabulary richness**: 45% unique words

## Communication Style
- **Primary**: Enthusiastic (28%)
- **Secondary**: Analytical (24%)
- **Tertiary**: Direct (19%)

## Characteristic Expressions
- "you know" (used 45x)
- "I think" (used 38x)
- "the thing is" (used 22x)

## Sentence Starters
- "I think..." (28x)
- "So the..." (19x)
- "And then..." (15x)

## Signature Vocabulary
**actually** (67x), **basically** (45x), **approach** (34x)

---

## Recommendations for Author Profile

Based on this analysis:
- Set formality to 5 (conversational but professional)
- Set opinionated to 7 (confident, uses "I think" but states opinions)
- Add signature phrases: "you know", "the thing is"
- Use vocabulary freely: approach, strategy, implementation

Quality Indicators

Good voice analysis needs:

  • 100+ speaking turns for reliable patterns
  • 5,000+ words for vocabulary analysis
  • Multiple contexts (different topics/conversations)

Low data warning:

⚠️ Limited data: Only 23 speaking turns found.
   Results may not fully represent speaking patterns.
   Consider adding more transcripts.

References

  • TRANSCRIPT-FORMAT-EXAMPLES.md
  • VOICE-PROFILE-TEMPLATE.md

FAQ

What does the voice-extractor skill do?

Extract voice patterns from transcripts - speaking style, phrases, vocabulary for authentic author profiles

How do I install voice-extractor?

Run npx skills add https://github.com/mwguerra/claude-code-plugins --skill voice-extractor in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/voice-extractor/ (personal) or .claude/skills/voice-extractor/ (project).

Which AI agents can use voice-extractor?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is voice-extractor safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains voice-extractor?

It is published by mwguerra in mwguerra/claude-code-plugins. It has 39 recorded installs.

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