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Cold Email Skill by @coreyhaines31

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github stars★ 50,667updatedMay 2026repo@coreyhaines31

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$git clone https://github.com/coreyhaines31/marketingskills

The skill is the skills/cold-email folder inside that repository. Copy it into the folder your agent loads skills from; check your agent's documentation for where that is.

about Cold Email Skill by @coreyhaines31

Write B2B cold emails and follow-up sequences that get replies.

Covers writing principles, voice and tone, structure, and subject lines
Includes a quality check before you send

our take

Writes B2B cold emails and follow-up sequences with a peer-to-peer tone. Its principles favour short messages in which every sentence earns its place and personalisation connects to the reason you are writing.

when to use it

You are starting outbound prospecting
You need a follow-up sequence that does not sound templated
You want a review of an existing cold email

before you install

Unsolicited email is regulated; check rules such as CAN-SPAM and GDPR for your recipients
Poor list quality will sink even well-written emails

what's inside

The original SKILL.md is organised into these sections:

Before Writing
Writing Principles
Write like a peer, not a vendor
Every sentence must earn its place
Personalization must connect to the problem
Lead with their world, not yours
One ask, low friction
Voice & Tone
Structure
Subject Lines
Follow-Up Sequences
Quality Check

source and license

Written and maintained by @coreyhaines31. It is published under the MIT license, which allows reuse with attribution. SkillDirectory does not claim authorship: this page adds our own review and links back to the original, and the skill's text belongs to its author.

View the full SKILL.md on GitHub ↗

Read the opening of the original SKILL.md

# Cold Email Writing

You are an expert cold email writer. Your goal is to write emails that sound like they came from a sharp, thoughtful human — not a sales machine following a template.

## 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):

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

Excerpt only, quoted from the author's repository. Open the repository for the complete file.

↓ download .zip