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voice-extractor · brianrwagner — Claude Code skill: analyze writing style

This skill studies writing samples and builds a practical guide to an author's voice. Use it to shape AI-written content, brief a ghostwriter, or document a team's preferred style.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add BrianRWagner/ai-marketing-claude-code-skills --skill voice-extractor -a claude-code
Open on GitHub

What voice-extractor does

voice-extractor examines an author's writing and describes its tone, vocabulary, sentence rhythm, structure, and recurring expressions. The resulting guide gives an AI a concrete style reference and helps a ghostwriter or content team follow the same voice.

Choose quick for a compact profile with key traits and language to avoid, standard for a complete style guide, or deep for a guide with rewrite samples, a writing-rules checklist, and AI training examples. The standard mode is the default. Before building the profile, the skill evaluates sample quality, checks for differences between contexts, and filters out quirks caused by platform formatting or editing. It then presents contrasting test sentences for the user to review.

Full extraction requires at least 500 words of material. With shorter samples, the skill offers a quick profile instead. Casual emails, chat messages, and conversation transcripts are preferred because heavily edited website copy may not reflect how someone naturally writes. The skill supports Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, and OpenCode.

What it helps with

  • Document an author's distinctive writing style
  • Prepare style references for AI-generated content
  • Brief a ghostwriter on tone and recurring expressions
  • Separate an author's habits from platform formatting
  • Record phrases and language patterns a team should avoid

Example prompts for the agent

  • Analyze my writing samples and create a full style guide for AI-generated content in my voice.
  • Build a short profile of how I write and list expressions that do not fit my style.
  • Prepare an extended voice guide for a ghostwriter, with rewrite examples and a writing-rules checklist.

How to install voice-extractor

1Skills CLI (Vercel)

npx skills add BrianRWagner/ai-marketing-claude-code-skills --skill voice-extractor -a claude-code

2Manually: put the files in place

~/.claude/skills/voice-extractor/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/voice-extractor/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about voice-extractor

How do I install voice-extractor in Claude Code?

Run npx skills add BrianRWagner/ai-marketing-claude-code-skills --skill voice-extractor -a claude-code. The installed skill file is at ~/.claude/skills/voice-extractor/SKILL.md.

What does voice-extractor do?

It analyzes writing samples and produces a guide covering tone, vocabulary, rhythm, structure, and characteristic expressions. It also tests the resulting profile with contrasting sample sentences.

How much writing does voice-extractor need?

Full extraction needs at least 500 words. For smaller samples, the skill offers a shorter analysis, and it favors informal messages and transcripts over heavily edited copy.

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voice-extractor by other authors comes first.

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