brand-voice

brand-voice is a skill for Claude Code from Vibe-Marketer/plugins-and-skills. It costs 65 tokens per session (1,116 once invoked), scanned A, original, MIT.

A guide for identifying how a business writes and speaks, then recording those patterns as writing rules. It can use website copy, emails, social posts, calls, guidelines, or examples as source material.

In plain words
What is it for?
Use it to create a voice guide, list preferred and avoided words, define sentence patterns, review copy, and write new content in the documented style.
Why use it?
It helps prevent inconsistent wording and tone when different people or tools create content for the same brand.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the marketing-copy plugin — 9 skills shipped together

Good fit Use it to create a voice guide, list preferred and avoided words, define sentence patterns, review copy, and write new content in the documented style.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vibe-marketer/plugins-and-skills/brand-voice
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Vibe-Marketer/plugins-and-skills --skill brand-voice
Clone the repo
git clone --depth 1 https://github.com/Vibe-Marketer/plugins-and-skills

Made for: Claude Code.

Or install marketing-copy, the plugin that ships this one along with the rest of its 9 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for brand-voice

README.md
[![agentmods](https://agentmods.dev/badge/skills/vibe-marketer/plugins-and-skills/brand-voice/github.svg)](https://agentmods.dev/skills/vibe-marketer/plugins-and-skills/brand-voice)
Your own site
<a href="https://agentmods.dev/skills/vibe-marketer/plugins-and-skills/brand-voice"><img src="https://agentmods.dev/badge/skills/vibe-marketer/plugins-and-skills/brand-voice/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for brand-voice

Your own site · 80×15
<a href="https://agentmods.dev/skills/vibe-marketer/plugins-and-skills/brand-voice"><img src="https://agentmods.dev/badge/skills/vibe-marketer/plugins-and-skills/brand-voice.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,116 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00065 $0.01116
Opus 5 $0.00032 $0.00558
Sonnet 5 $0.00013 $0.00223
Haiku 4.5 $0.00006 $0.00112

Measured 12d ago against content hash ccc41c2967f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

brand-voice scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

marketing-copy/skills/brand-voice/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<quick_start> Provide any of these for voice extraction:

  • Existing website copy, emails, or social posts
  • Content the brand admires (competitors, influences)
  • Recorded calls, podcasts, or transcripts from the founder
  • Existing brand guidelines or style docs
  • Examples of "this sounds like us" vs. "this doesn't"

I will generate:

  • Voice DNA profile (core patterns, rhythms, vocabulary)
  • Do/Don't examples for every voice dimension
  • Word bank (preferred words, banned words, replacements)
  • Sentence templates that capture the rhythm
  • Voice checklist for reviewing any piece of copy </quick_start>

<essential_principles>

<voice_extraction_method>

  1. Collect samples. Minimum 5 pieces of content the brand considers "on-voice." More is better.
  2. Find the patterns. Sentence length distribution. Paragraph length. Question frequency. Contraction usage. Profanity comfort level. Jargon density. First-person vs. second-person ratio.
  3. Identify the personality blend. Every brand voice is a blend of 2-3 archetypes. Name them specifically (e.g., "Dan Kennedy directness + Gary Halbert humor + Hormozi specificity").
  4. Document the vocabulary. Words they always use. Words they never use. Industry terms they embrace vs. avoid.
  5. Capture the rhythm. Short punchy sentences mixed with longer storytelling runs? All short? Academic? Fragment-heavy? This is the hardest part and the most important.
  6. Create the contrast. For every rule, show what the voice sounds like AND what it doesn't sound like. Without contrast, rules are meaningless. </voice_extraction_method>

<voice_dimensions> Score each dimension on a spectrum with specific evidence:

  1. Formality — Academic ←→ Casual (contractions, slang, sentence fragments)
  2. Humor — Serious ←→ Playful (jokes, self-deprecation, wit)
  3. Authority — Peer ←→ Expert (credentials, directness, teaching style)
  4. Emotion — Reserved ←→ Expressive (exclamation marks, emphatic words, vulnerability)
  5. Pace — Measured ←→ Urgent (sentence length, paragraph length, CTA frequency)
  6. Specificity — General ←→ Granular (numbers, names, exact details)
  7. Profanity — Clean ←→ Raw (comfort with strong language)
  8. Perspective — Third-person ←→ First-person (I/we/you ratios) </voice_dimensions>

<output_format> Every brand voice guide must include:

Voice DNA

  • 2-3 sentence summary of the voice ("sounds like X talking to Y about Z")
  • Personality blend (named influences)
  • One-line acid test ("If this copy could be from any brand, it fails")

Read the full file on GitHub · 105 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 105 lines · 65 tokens per session scan A ccc41c2967f9

Subscribe to this mod's changes

brand-voice is a skill published in the GitHub repository Vibe-Marketer/plugins-and-skills (2 stars, last pushed 6mo ago), licensed MIT. It adds 65 tokens to every session and 1,116 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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