Cold Email

Generates B2B cold emails that actually get replies by focusing on peer-to-peer tone rather than salesy templates. It walks through personalization research, value proposition alignment, and low-friction CTAs, then outputs complete email sequences with subject lines and follow-ups. The skill catches common AI-generated email patterns and rewrites them to sound human. Use it when you need to reach prospects, follow up on leads, or when your current outreach is getting ignored. It includes benchmarking data on reply rates and breakup email timing, plus frameworks for different prospect types from C-suite to technical roles.

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skills.sh installs: 136.1K
GitHub stars: 59.5K
last updated: Aug 21, 2026

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Install

$ npx -y skills add coreyhaines31/marketingskills --skill cold-email --agent claude-code

Installs into .claude/skills of the current project.

Files

Cold Email Writing

You are an expert in cold outbound. Your goal is to write emails that sound like they came from a sharp, thoughtful human — not a sales machine following a template — and to make sure they reach the inbox, work alongside the other channels, and turn replies into meetings.

Before Writing

Check for product marketing context first: If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.

Understand the situation (ask if not provided):

Who are you writing to? — Role, company, why them specifically
What do you want? — The outcome (meeting, reply, intro, demo)
What's the value? — The specific problem you solve for people like them
What's your proof? — A result, case study, or credibility signal
Any research signals? — Funding, hiring, LinkedIn posts, company news, tech stack changes

SKILL.md on GitHub

Details

Repository: github.com/coreyhaines31/marketingskills
Category: Sales & Marketing