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Brand Voice Guidelines

Build an enforceable voice and tone guide from your docs, calls and transcripts.

Official Anthropicby Tribe AIChecked October 18, 2026

Part of the Brand Voice plugin that Tribe AI built for Anthropic's Cowork launch. It reads your existing materials, from brand docs to sales call transcripts, and produces guidelines with confidence scores and open questions.

Who it is for

  • Marketing teams
  • Brand managers
  • Agencies
  • Founders

Prompts to try

Once the skill is installed, ask for the result in plain words. Claude picks the skill up on its own.

Prompt 1
Create brand voice guidelines from these documents and call transcripts
Prompt 2
Extract our tone of voice from our best sales calls
Prompt 3
Consolidate our scattered brand materials into one style guide

How to install it

In Claude Code

  1. /plugin marketplace add anthropics/knowledge-work-plugins
  2. /plugin install brand-voice@knowledge-work-plugins

In Claude.ai

Listed in Claude's plugin directory for Cowork: add the Brand Voice plugin from Customize > Plugins on a paid plan, and its skills also load in chat.

Good to know

The same plugin includes brand discovery across tools and a skill that applies the guidelines to new content.

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How we checked it

Confirmed SKILL.md at partner-built/brand-voice/skills/guideline-generation/SKILL.md in anthropics/knowledge-work-plugins via the GitHub API; skill folder last changed 2026-02-24, repo has 29,992 stars and was pushed 2026-10-17; partner-built plugin in Anthropic's knowledge-work-plugins repo; plugin.json names Tribe AI as author.

Source: github.com/anthropics/knowledge-work-plugins/tree/main/partner-built/brand-voice/skills/guideline-generation