Brand Voice Analyzer Skill for Claude

Brand Voice Analyzer

Ingest a company's existing content, reverse-engineer the voice behind it, produce a definitive brand voice guide any writer can follow, and review new content against an established guide.

Contents

• references/voice-dimensions.md -- the seven-axis tone spectrum, vocabulary, sentence, personality, audience, and formatting dimensions to extract
• references/guide-template.md -- required sections, quality standards, and pre-delivery checklist for brand-voice-guide.md
• references/review-mode.md -- process and output format for scoring content against a guide
• references/metrics.md -- quantitative and qualitative analysis techniques and citation standards
• references/edge-cases.md -- handling for thin corpora, multiple voices, regulated industries, rebrands, plus interaction patterns

Workflow: Create a New Voice Guide

• Ask which content sources are available (URLs, files, directories, pasted text).
• Ask about any known brand attributes, values, or existing guidelines.
• Collect the corpus. Pull URLs with WebFetch, locate files with Glob/Read, find public content with WebSearch. Gather website copy, 5-10 blog posts, email campaigns, social posts, sales collateral, and support content. Document each source and its word count.
• Confirm corpus size. Require at least 3,000 words across 2+ content types. If smaller, flag the limitation and mark affected findings as lower confidence.
• Run the full voice extraction across every dimension in references/voice-dimensions.md, citing source examples per the standards in references/metrics.md.
• Present a summary of findings for validation before generating the guide.
• Generate the complete brand-voice-guide.md following references/guide-template.md. Verify it against that checklist before delivery.
• Offer to review a sample piece of content against the new guide.

Workflow: Review Content

• Locate or ask for the brand-voice-guide.md.
• Read the content to be reviewed.
• Run the review process and produce the scored output defined in references/review-mode.md.
• Present findings with actionable, guide-referenced fixes.

Workflow: Update an Existing Guide

• Read the current brand-voice-guide.md.
• Ingest the new content sources and run extraction on the new material.
• Compare findings against the existing guide.
• Propose specific updates with rationale.
• Apply approved changes with Edit.

Output Standards

• Primary output: brand-voice-guide.md. For multiple brands: brand-voice-guide-[company-name].md. Deliver review output inline unless a file is requested.
• Use markdown headers (H1-H4), tables for comparative data, blockquotes for source quotes, code blocks only for literal reproduced text. Bold key terms on first use. No emojis.

Operating Principles

• Never fabricate examples. Every quoted example must come from actual source content.
• Never assert voice attributes without evidence. If the data does not support a conclusion, say so.
• Present findings as observations, not prescriptions, until the user validates them.
• Distinguish voice (consistent: who we are) from tone (shifts by context: how we adapt) in every guide.
• When reviewing, be specific: cite the exact word, phrase, or structure and the guide section it touches.
• Treat the guide as a living document and defer to the user's judgment on subjective calls.