What it does

This repo is a collection of markdown “skills” for AI coding agents. Drop them into a project and your agent suddenly recognizes marketing tasks—A/B tests, cold emails, SEO audits, churn prevention—and applies relevant frameworks instead of generic hallucinations. It targets Claude Code, OpenAI Codex, Cursor, Windsurf, and anything else that speaks the Agent Skills spec.

The interesting bit

The skills are deliberately interlinked. A product-marketing base skill sits at the root; every other skill reads it first to ground itself in your actual product, audience, and positioning before dispensing advice. It’s a dependency graph for domain knowledge, not code.

Key highlights

• 40+ skills covering CRO, copywriting, SEO, paid ads, analytics, growth engineering, and sales enablement
• Cross-references between skills: copywriting ↔ CRO ↔ A/B testing, SEO audit ↔ schema ↔ AI SEO, etc.
• Works with any agent supporting the Agent Skills spec; no proprietary lock-in
• Includes niche modern concerns: AI SEO (getting cited by LLMs), programmatic SEO, app-store optimization
• Built by Corey Haines, who also runs a CRO agency and a marketing education site—so the skills reflect practitioner rather than textbook knowledge

Caveats

• The repo is essentially structured markdown and documentation; there’s no runtime, validation, or automated testing visible in the README
• Star count (31,712) is unusually high for a non-code repo; the README doesn’t explain the traction, so the mechanism of popularity is unclear

Verdict

Worth a look if you’re already using Claude Code or similar agents for marketing work and tired of re-prompting context. Purely a curiosity if you don’t use agentic coding tools or handle marketing through traditional workflows.