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Copy & sales55k · #1761

cold-email

Helps your agent write and send cold business-to-business emails. It handles everything from emails and follow-ups to sending setup and LinkedIn outreach. Useful for generating more business leads.

What it does

Helps create and send effective B2B cold outreach emails. This includes writing the emails, setting up sending to ensure they reach the inbox, and managing replies.

When to use it

  • ✓When you want to find new customers for your business.
  • ✓If your sales emails aren't getting replies.
  • ✓To set up an email sending system that avoids spam filters.

Example of what to ask your AI

“Write a cold email to the CTO of a software company that is hiring many engineers, offering a solution to streamline their hiring process.”

Want more? Open the sections below.

How to use

The easiest way: copy the message below and paste it into Claude, ChatGPT, Cursor or any AI. It reads the skill and follows the instructions.

Skill link

https://github.com/coreyhaines31/marketingskills/blob/main/skills/cold-email/SKILL.md

Ready-to-paste message

Use this skill to help me: https://github.com/coreyhaines31/marketingskills/blob/main/skills/cold-email/SKILL.md Read the SKILL.md file at that link and follow its instructions for my task.
How it works

The AI analyzes your business context and target audience. It writes emails that sound human-written, focusing on the customer's problem and how you can help, and provides tips to ensure emails reach their destination.

Installation

Easiest way: copy the skill link and paste it into Claude, ChatGPT or Cursor asking it to follow the instructions.

In the terminal (Claude Code, Codex, Cursor), in your project folder:

npx skills add coreyhaines31/marketingskills --skill cold-email

Or download just the file:

curl -L https://raw.githubusercontent.com/coreyhaines31/marketingskills/main/skills/cold-email/SKILL.md -o SKILL.md
Technical content (original SKILL.md)

Original text by the author, straight from GitHub.

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):

  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

Work with whatever the user gives you. If they have a strong signal and a clear value prop, that's enough to write. Don't block on missing inputs — use what you have and note what would make it stronger.


Writing Principles

Write like a peer, not a vendor

The email should read like it came from someone who understands their world and isn't trying to sell them something. Use contractions. Read it aloud. If it sounds like marketing copy, rewrite it.

Every sentence must earn its place

Cold email is ruthlessly short. If a sentence doesn't move the reader toward replying, cut it. The best cold emails feel like they could have been shorter, not longer.

Personalization must connect to the problem

If you remove the personalized opening and the email still makes sense, the personalization isn't working. The observation should naturally lead into why you're reaching out.

See personalization.md for the 4-level system and research signals.

Lead with their world, not yours

The reader should see their own situation reflected back. "You/your" should dominate over "I/we." Don't open with who you are or what your company does.

One ask, low friction

Interest-based CTAs ("Worth exploring?" / "Would this be useful?") beat meeting requests. One CTA per email. Make it easy to say yes with a one-line reply.


Voice & Tone

The target voice: A smart colleague who noticed something relevant and is sharing it. Conversational but not sloppy. Confident but not pushy.

Calibrate to the audience:

  • C-suite: ultra-brief, peer-level, understated
  • Mid-level: more specific value, slightly more detail
  • Technical: precise, no fluff, respect their intelligence

What it should NOT sound like:

  • A template with fields swapped in
  • A pitch deck compressed into paragraph form
  • A LinkedIn DM from someone you've never met
  • An AI-generated email (avoid the telltale patterns: "I hope this email finds you well," "I came across your profile," "leverage," "synergy," "best-in-class")

Structure

There's no single right structure. Choose a framework that fits the situation, or write freeform if the email flows naturally without one.

Common shapes that work:

  • Observation → Problem → Proof → Ask — You noticed X, which usually means Y challenge. We helped Z with that. Interested?
  • Question → Value → Ask — Struggling with X? We do Y. Company Z saw [result]. Worth a look?
  • Trigger → Insight → Ask — Congrats on X. That usually creates Y challenge. We've helped similar companies with that. Curious?
  • Story → Bridge → Ask — [Similar company] had [problem]. They [solved it this way]. Relevant to you?

For the full catalog of frameworks with examples, see frameworks.md.


Subject Lines

Short, boring, internal-looking. The subject line's only job is to get the email opened.

  • 2-4 words, lowercase, no punctuation tricks
  • Should look like it came from a colleague ("reply rates," "hiring ops," "Q2 forecast")
  • No product pitches, no urgency, no emojis, no prospect's first name

See subject-lines.md for the full data.


Follow-Up Sequences

Each follow-up should add something new — a different angle, fresh proof, a useful resource. "Just checking in" gives the reader no reason to respond.

…

FAQ

Why use secondary domains for sending emails?

Using a different domain than your primary one protects your main domain's reputation if any emails get marked as spam.

What are 'follow-up sequences'?

These are a series of emails sent at planned intervals, with each email adding new information or an angle to keep the potential client engaged.

Why not use open and click tracking?

The focus is on measuring success by direct replies, which are a stronger indicator of genuine interest, and to avoid emails being flagged as spam by some security systems.

Details

Original description by the author

Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling. Use when the user mentions "cold email," "cold outreach," "outbound," "prospecting email," "SDR emails," "follow-up sequence," "nobody's replying," "email deliverability," "sending domains," "warm up inboxes," "LinkedIn outreach," "connection req

repo: coreyhaines31/marketingskills

Popularity

GitHub stars
55k
Ranking position
#1761
License
MIT
Updated
10/15/2026

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