52.6k-star GitHub project adds marketing skills to Claude Code and AI agents
lxfater · x · 2026-10-03
Developer Corey Haines open-sourced marketingskills (52.6k stars), turning conversion optimization (CRO), copywriting, SEO, analytics, and growth engineering into a set of Agent Skills that work with Claude Code, OpenAI Codex, Cursor, Windsurf, and any agent supporting the Agent Skills spec.
The poster recommends starting with the product-marketing skill: it writes down who you sell to, what problem you solve, and your positioning as a persistent background doc that all other skills read first, so advice stays grounded. Example workflow: if your SaaS homepage gets no signups, run cro to check the value prop, buttons, and forms, then use copywriting to rewrite the copy.
For indie devs who can code but can't market, this effectively lets your coding agent double as a growth advisor.
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