Cold Email
Sales & CRMby coreyhaines31
3/3 audits passMIT
Write B2B cold emails and follow-up sequences that get replies. Use when the user wants to write cold outreach emails, prospecting emails, cold email campaigns, sales development emails, or SDR emails.
Cold Email, published by Corey Haines (coreyhaines31) under the MIT licence, teaches the agent to write B2B cold emails and follow-up sequences. Before writing it checks for a product-marketing context file, then establishes who the email is to, the outcome wanted, the value, the proof and any research signals. Its writing principles: sound like a peer rather than a vendor, make every sentence earn its place, connect personalisation to the problem, lead with the reader's world and make one low-friction, interest-based ask.
It offers structures such as observation, problem, proof, ask and trigger, insight, ask; subject lines of two to four lowercase words that look internal; and 3-5 email follow-up sequences where every touch adds something new and the breakup email is honoured. A quality check and an avoid-list rule out openers like I hope this finds you well, jargon, feature dumps, HTML and images, fake Re: subjects and asking for a 30-minute call on the first touch. Reference files cover frameworks, personalisation, subject lines and follow-ups. Warm lifecycle email and other sales collateral are left to separate skills.
In BusinessMCP the AI business analyst can draft outreach with this playbook using what your CRM knows about a contact, and any email it drafts still waits for your approval before it is sent.
What you can do with it
- Write a first-touch email built on a specific trigger event
- Plan a follow-up sequence where each email adds a new angle
- Rewrite a salesy template so it reads like a peer
- Draft short, internal-looking subject lines
Run it on your business data
Imported into BusinessMCP, Cold Email becomes a playbook your AI business analyst applies to your CRM contacts, identified companies and their website visits.
Use Cold Email in BusinessMCPInstall it in a coding agent
One command adds Cold Email to your project.
npx skills add https://github.com/coreyhaines31/marketingskills --skill cold-emailHow we vetted it
- Source
- coreyhaines31/marketingskills at 5b2c000
- Licence
- MIT
- Security audits (skills.sh)
- Gen Agent Trust Hub: Pass · Socket: Pass · Snyk: Pass
- Bundled scripts
- None, instructions only
Checked 2026-09-25 against its skills.sh listing. How we vet skills
Related skills
All skillsSales Enablement
When the user wants to create sales collateral, pitch decks, one-pagers, objection handling docs, or demo scripts.
Account Research
Research a target company and optionally a specific contact - company overview, recent news, likely priorities, and fit against your ICP. Cross-references existing CRM records.
Copywriting
When the user wants to write, rewrite, or improve marketing copy for any page — including homepage, landing pages, pricing pages, feature pages, about pages, or product pages.
Frequently asked questions
How long should a follow-up sequence be?
The skill recommends 3-5 emails in total with increasing gaps, each able to stand alone, ending with a breakup email that is honoured.
What does it tell the agent to avoid?
Openers like I hope this email finds you well, jargon such as synergy and leverage, feature dumps, HTML and images, fake Re: or Fwd: subjects, swapped-name templates and asking for a 30-minute call on the first touch.
How do I install Cold Email?
Run `npx skills add coreyhaines31/marketingskills --skill cold-email`, or import it from the BusinessMCP dashboard to use it as a playbook in your workspace.