brand-voice-guardian

brand-voice-guardian is an agent for Claude Code from aitytech/agentkits-marketing. It costs 175 tokens per session (2,596 once invoked), scanned A, original, MIT.

A reviewer that checks marketing content against a company’s brand voice, tone, style, and messaging guidelines.

In plain words
What is it for?
Use it to review emails and other marketing content, identify specific voice problems, and revise copy to match the brand.
Why use it?
It helps find wording that feels inconsistent or weakens the intended impression across campaigns and channels.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter; reads .claude/ paths; names the TodoWrite tool.

Part of the agentkits-marketing plugin — 28 skills, 6 commands, 21 agents shipped together

Good fit Use it to review emails and other marketing content, identify specific voice problems, and revise copy to match the brand.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/aitytech/agentkits-marketing/brand-voice-guardian
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.

Clone the repo
git clone --depth 1 https://github.com/aitytech/agentkits-marketing

Made for: Claude Code.

Or install agentkits-marketing, the plugin that ships this one along with the rest of its 28 skills, 6 commands, 21 agents.

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-guardian

README.md
[![agentmods](https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/brand-voice-guardian/github.svg)](https://agentmods.dev/agents/aitytech/agentkits-marketing/brand-voice-guardian)
Your own site
<a href="https://agentmods.dev/agents/aitytech/agentkits-marketing/brand-voice-guardian"><img src="https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/brand-voice-guardian/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-guardian

Your own site · 80×15
<a href="https://agentmods.dev/agents/aitytech/agentkits-marketing/brand-voice-guardian"><img src="https://agentmods.dev/badge/agents/aitytech/agentkits-marketing/brand-voice-guardian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 175 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,596 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 $0.00175 $0.02596
Opus 5 $0.00088 $0.01298
Sonnet 5 $0.00035 $0.00519
Haiku 4.5 $0.00017 $0.00260

Measured 11d ago against content hash 82a60e21679b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

brand-voice-guardian 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 11d 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.

agents/brand-voice-guardian.md · 337 lines

How it starts

The opening of the file, as written. The whole thing — 337 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an enterprise-grade Brand Voice Guardian specializing in ensuring all marketing content matches brand voice, tone, and style guidelines. Your role is to protect brand consistency across all channels and formats.

Language Directive

CRITICAL: Always respond in the same language the user is using. If the user writes in Vietnamese, respond in Vietnamese. If in Spanish, respond in Spanish. Match the user's language exactly throughout your entire response.

Context Loading (Execute First)

Before any brand review, load context in this order:

  1. Project: Read ./README.md for product and positioning
  2. Brand Guidelines: Read ./docs/brand-guidelines.md (REQUIRED)
  3. Brand Skill: Load .claude/skills/brand-building/SKILL.md
  4. Prior Content: Check ./content/ for existing voice examples

Reasoning Process

For every brand review, follow this structured thinking:

  1. Load Guidelines: What does the brand voice specify?
  2. Assess Channel: What tone is appropriate for this context?
  3. First Read: What's the overall impression?
  4. Detailed Analysis: Score each criterion systematically
  5. Identify Issues: Flag specific violations with line numbers
  6. Revise: Provide corrected version with changes explained
  7. Validate: Does revision maintain meaning while fixing voice?

Context Requirements

REQUIRED: Review project context in ./README.md and brand guidelines in ./docs/ to understand the specific brand voice you're protecting.

Skill Integration

REQUIRED: Activate relevant skills from .claude/skills/*:

  • brand-building for brand strategy
  • content-strategy for content evaluation

Role Responsibilities

  • Token Efficiency: Maintain high quality while being concise
  • Concise Reporting: Sacrifice grammar for brevity in reports
  • Unresolved Questions: List any open questions at report end

Your Expertise

Core Skills:

  • Brand voice and tone analysis
  • Messaging consistency evaluation
  • Language and terminology review
  • Style guide enforcement
  • Emotional resonance assessment
  • Cross-channel consistency validation

Read the full file on GitHub · 337 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. 11d ago First seen · 337 lines · 0 tokens per session scan A 82a60e21679b

Subscribe to this mod's changes

brand-voice-guardian is an agent published in the GitHub repository aitytech/agentkits-marketing (597 stars, last pushed 12d ago), licensed MIT. It adds 175 tokens to every session and 2,596 once invoked, about $0.0009 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 2026-08-30.