Brief

Brief us. We ship the work.

Ten marketing specialists installed in your editor. Describe the problem; the right one steps in.

48 skills total — CRO, copywriting, SEO, paid ads, retention, growth engineering, sales & RevOps, measurement. One install command and the whole team lands in Claude Code, Cursor, and Codex.

Hub: marketing-skills.guyaga.ai Repo: github.com/guyaga/brief

How to use

1. Install the team: npx skills add guyaga/brief
2. Have your AI agent run product-marketing-context first — it captures your audience, positioning, and voice in one document
3. Brief them. Describe the problem in plain language; the right specialist steps in

You don't pick which skill to invoke. You describe the situation; the team routes it.

The team

Ten named specialists, each with a deep remit and a small set of skills they own.

#	Specialist	Role	Owns
01	Elias	The Brand Lead	product-marketing-context, brand-voice
02	Maya	The Conversion Specialist	form-cro, onboarding-cro, page-cro, paywall-upgrade-cro, popup-cro, signup-flow-cro
03	Daniel	The Copy Chief	cold-email, content-strategy, copy-editing, copywriting, email-sequence, image, social-content, video, content-distribution
04	Yara	The SEO Lead	ai-seo, aso-audit, competitor-alternatives, programmatic-seo, schema-markup, seo-audit, site-architecture
05	Reza	The Media Buyer	ad-creative, paid-ads
06	Nadia	The Strategist	competitor-profiling, customer-research, launch-strategy, marketing-ideas, marketing-psychology, pricing-strategy, customer-segmentation, market-sizing
07	Ines	The Customer Success Lead	churn-prevention
08	Theo	The Growth Engineer	community-marketing, directory-submissions, free-tool-strategy, lead-magnets, referral-program, marketing-automation
09	Marcus	The Operator	revops, sales-enablement, win-loss-analysis, sales-asset-iteration
10	Priya	The Analyst	ab-test-setup, analytics-tracking, marketing-attribution

The 10 rules of the team

1. Read context before doing anything — every skill checks product-marketing-context.md first
2. Specialists, not generalists — each does one thing well, not ten things kind of
3. Brief, do not prompt — describe the problem; the team routes it
4. Voice over variety — the work ships in your voice, not the agent's
5. Frameworks are named — Reply Method, Bullseye, Four Fits, RFM, PAS — not generic filler
6. Cite, do not invent — every benchmark cites a primary source
7. Stage-fit before tactic — the right tactic at the wrong stage burns money
8. Honest about limits — paywalled and heuristic content is marked
9. One install, full team — atomic deployment, not à la carte
10. Hand off, do not hoard — Strategist hands to Copy Chief hands to Conversion Specialist hands to Analyst

Install

Six ways to get the team into your project. Pick whichever fits your workflow.

1. npx skills add (recommended)

npx skills add guyaga/brief

Drops every specialist into .agents/skills/ and symlinks them to .claude/skills/ so Claude Code picks up the team immediately. Powered by Vercel Labs' skills CLI.

2. Claude Code plugin

From inside Claude Code:

/plugin add github:guyaga/brief

3. Single skill via degit

If you only need one specialist:

npx degit guyaga/brief/skills/cold-email .agents/skills/cold-email

4. Clone and copy

git clone https://github.com/guyaga/brief.git
cp -r brief/skills .agents/

5. Git submodule

git submodule add https://github.com/guyaga/brief.git .agents/brief

6. SkillKit (multi-agent)

npx skillkit install guyaga/brief

Same team across Claude Code, Cursor, Codex, and Copilot in one shot.

After install

Run product-marketing-context first. Every other skill reads it before doing anything. It is your audience, positioning, and voice in one document. The Brand Lead fills it in with you.

Then brief the team:

• "Write a comparison page against [competitor]."
• "Audit my signup flow."
• "Plan our launch."
• "Generate three ad creative variants for the new homepage hero."

The right specialist steps in.

Repo layout

.
├── .claude-plugin/         Plugin manifest for Claude Code
├── skills/                 48 skill folders, each with a SKILL.md
├── site/                   Astro hub at marketing-skills.guyaga.ai
├── tools/                  CLI integrations and helpers (from upstream)
├── LICENSE                 MIT
└── NOTICE                  Attribution to upstream

Voice

Skill descriptions, category copy, and the hub website are written in Guy Aga's voice. Skill bodies are still upstream and get refined skill by skill over time.

The voice is anti-AI-slop. No em-dashes. No "leverage", "unlock", "transformative", "delve". First person or imperative. Short sentences. Concrete examples and numbers over abstract claims.

If you fork this and rewrite the skill bodies in your own voice, that is the point.

Credit

Brief is a brand-customized adaptation of Corey Haines' marketing-skills, MIT licensed. The skill bodies in skills/ are derivative work and remain under the upstream MIT License. See NOTICE for full attribution.

For the original, unbranded source, install with npx skills add coreyhaines31/marketingskills.

License

MIT. See LICENSE.

Built by Guy Aga. bestguy.ai.