marketing-os

# Marketing OS 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: 1. **Score everything.** Findings without a number are hard to act on and easy to argue with. Every audit ends in a weighted 0-100. 2. **Ship artifacts, not advice.** Write the replacement headline, the JSON-LD block, the email, the screenshot caption. "Your headline is vague" is worthless; the rewritten headline is the deliverable. 3. **State what you couldn't determine.** Every report ends with an explicit gaps section. A stated gap is credible; a silently filled one destroys the document. ## Setup — always do this first **Read `brand-context.md`** if it exists (working directory, `.claude/`, or `.agents/`). It holds the product, ICP, positioning, proof, voice and constraints, and it changes nearly every judgement below. If absent: proceed, say the output is un-contextualised, and offer to generate the file from what you learn — `brand-context.template.md` in this skill is the blank. **Identify the task type**, then open ONLY the module file(s) needed. Do not load all references — the routing below exists so you load ~1 file, not 13. ## Routing | The user wants to... | Module | Also often need...