14 modules. One skill. MIT.
Install (Claude Code):
/plugin marketplace add Yuzzyuk/marketing-os
/plugin install marketing-os@marketing-os
Install (claude.ai): Settings → Skills → + → upload the attached marketing-os.zip.
New in 1.1: hooks module (18-tactic hook engine, three-component spec, diagnostic funnel, fidelity ladder), GEO evidence pass (measured lifts, schema deprecations, llms.txt reality check), platform-mechanics diagnostics (learning phase, breakdown effect), coverage-gated audit grading, competitor hook clustering, headline formula groups, and an ad-production handoff for generation MCPs like Arcads.