What it does. One skill, fourteen modules, the full surface a working marketer touches. Built by tearing down the most-starred marketing skill repos on GitHub (44K-star collections down to 100-star craft pieces), keeping what worked, and fixing what every one of them got wrong.
Three rules hold across every module, because they are what the existing ecosystem uniformly lacks:
Highlights
- All scores are heuristics from marketing judgement, not measured performance or anyone's internal ranking data. Say so in the report, every time.
- Do not anchor on scores, numbers, or conclusions the user supplies. Form an independent read first, then compare and say where you differ.
- Never handle credentials or touch live campaigns/accounts. Diagnose and prescribe; the human executes in-platform.
When to use it. A complete marketing department in one skill. Website and landing-page audits with weighted 0-100 scores, copywriting with panel scoring and AI-slop removal, an 18-tactic ad hook engine, GEO/AEO for…
Install
npx skills add Yuzzyuk/marketing-os --skill marketing-os
Or copy the skill folder manually:
git clone https://github.com/Yuzzyuk/marketing-os.git
cp -r marketing-os/skills/marketing-os/ ~/.claude/skills/marketing-os
Source: Yuzzyuk/marketing-os — 461 stars, MIT, last pushed 2026-08-17.
