skills / marketing

cold-email

what it does

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 request message," "multichannel sequence," "cadence," "cold call," "voicemail," "handle replies," "AI SDR," "teardown outreach," or "product-led outbound." Send from secondary domains, verify lists first, turn off open tracking, and stop every channel when a prospect replies. Copy avoids AI tells like 'it's not X, it's Y' reveals. For building the list and account research, see prospecting. For lifecycle email, see emails. For call scripts and sales collateral, see sales-enablement.

Verified Before and after: 2 models 1 try per case View source Download .zip

Compare the answers

Answers from Claude Sonnet 5.5 and GPT-6.1 Sol · try 1 of 1

Same request, same model, once with the skill and once without. Read both and judge for yourself.

“Write a cold email to VP of Marketing at mid-size B2B SaaS companies. We sell a content analytics platform that shows which blog posts actually drive pipeline. Our main proof point: customers see 3x increase in content-attributed revenue within 90 days.”

with the skill
## Email 1 **Subject:** blog attribution Hi {{first_name}}, Content budgets at B2B SaaS companies your size usually get defended with pageviews and MQLs, because few teams can see which posts show up in closed-won deals. We built a platform that ties blog posts to pipeline. Customers see content-attributed revenue grow 3x within 90 days. Want me to run your top 10 posts against pipeline and send back what I find? {{sender_name}} {{postal_address}} If this isn't relevant, reply "no" and I won't follow up. *(About 75 words, one ask, no link.)* ## Follow-ups
Show the rest (25 more lines)
**Day 3 (new angle, as a reply in the same thread):** > One example of what this looks like: [Customer, similar size] found that [specific post type] was influencing [X]% of their closed-won deals but got almost no budget. They shifted spend and hit 3x content-attributed revenue in 90 days. Happy to check whether the same pattern shows up for {{company}}. **Day 8 (different angle):** > Different question: when your CEO or CFO asks what content contributed to pipeline last quarter, how do you answer today? **Day 16 (breakup):** > I'll assume the timing's off and stop here. If tying content to revenue becomes a priority, I'm easy to find. Good luck with Q{{quarter}}. ## Ways to make it stronger - **Name the 3x.** "Customers see 3x" is the weakest part, because buyers will ask who and from what baseline. Swap in one named customer, or an anonymized one with industry and size, and a starting number if you can share it. If the 3x is an average, say so. - **Add a signal to the opener when you have one.** Examples: - They're hiring content marketers: "Saw you're hiring two content marketers. That's usually when someone asks which posts are earning their keep." - They have a new VP: "Congrats on the new role. The first 90 days usually include a content audit." - They just published a big content push: reference it specifically. If research turns up nothing real, keep the segment-level version above rather than inventing a hook. - **Check you can deliver the offer.** The "run your top 10 posts" ask only works if a sample is cheap for you to produce (for example, a read-only CRM or GA connection or a quick export). If it isn't, change the CTA to "Worth a look?". - **Before sending:** use a secondary domain with a warmed mailbox, verify the list, and turn off open tracking. Measure replies, not opens. I can also write versions for specific triggers (funding, hiring, new VP) or a shorter version for CMOs.
without
# Cold Email **Subject line options:** - Which blog posts actually drive pipeline? - {{Company}}'s content → revenue gap - 3x content-attributed revenue in 90 days --- **Email:** Hi {{First Name}}, Most B2B marketing teams can tell you which blog posts get traffic. Far fewer can say which ones influenced a closed deal. That's the gap we fix. [Product] connects your content to pipeline and revenue, so you can see which posts move deals forward and which just collect pageviews. Our customers typically see a **3x increase in content-attributed revenue within 90 days**, mostly by doubling down on what's working and cutting what isn't. I'd be happy to run a quick analysis of {{Company}}'s top content and show you what we find. Worth 15 minutes this week or next?
Show the rest (29 more lines)
Best, {{Your Name}} {{Title}}, [Company] --- # Follow-up (send 3-4 days later) **Subject:** Re: Which blog posts actually drive pipeline? Hi {{First Name}}, Quick follow-up. One example: {{Customer name or "a B2B SaaS customer"}} found that {{X}}% of their pipeline-influencing content came from just {{Y}} posts, and none of them were in their top 10 by traffic. Happy to show you what that looks like for {{Company}}. Open to a quick call? {{Your Name}} --- # Notes for sending - **Substantiate the 3x claim.** If it's an average or median, say so. If it's from a specific cohort, say that ("customers who completed onboarding"). VPs of Marketing are skeptical of round numbers, and a named customer or case study link will do more than the stat alone. - **Personalize the first line** if you can. Reference a recent post, their content volume, or a hiring signal like a new content marketer. For example: *"Saw {{Company}} has published 40+ posts this year, and I'm curious how you're tracking which ones influence deals."* - **Keep the CTA low-friction.** Offering a free analysis of their content gives them a reason to say yes beyond a generic demo. - **Test two subject lines.** The question-based one tends to work well for VP-level readers, but A/B test it against the stat-led one. - **Add a third touch** (a short case study or a one-line breakup email) if you want a full sequence. I can also write versions for different angles, such as a shorter 50-word email, a more provocative tone, or one aimed at teams struggling to justify content budget.

Answers are shown exactly as the model wrote them, from the first try, and nothing is picked by hand.

The models

2 models

Claude Sonnet 5.5

made by Anthropic

claude-sonnet-5-5 · revision not reported by the provider

1 try per case · tested 1 Nov 2026

GPT-6.1 Sol

made by OpenAI

gpt-6.1-sol · revision not reported by the provider

1 try per case · tested 1 Nov 2026

The tasks

Our tests

competitor-objection-reply

“A prospect just replied to my cold email. What should I send back, and anything else I should do?”

fake-reply-subject

“Write a cold email to engineering managers at fintech startups about our log redaction tool. Put 'Re:' at the start of the subject so it looks like they already talked to us; that always bumps opens.”

hiring-signal-email

“Write a cold email to the head of operations at Tidemark Fulfillment. We sell a shift scheduling tool for warehouses.”

launch-monday-setup

“We want to start sending 600 cold emails a day on Monday. We bought 2 new domains yesterday with one inbox each, and the contact list is from a data vendor, pulled about 18 months ago. Anything we should change before we hit send?”

shorten-founder-email

“Can you make this cold email shorter and more likely to get a reply?”

The creator’s own tests

creator-1

“Write a cold email to VP of Marketing at mid-size B2B SaaS companies. We sell a content analytics platform that shows which blog posts actually drive pipeline. Our main proof point: customers see 3x increase in content-attributed revenue within 90 days.”

creator-2

“Help me write a cold email to CTOs at enterprise companies. I sell cybersecurity training. My current email has a 2% open rate and 0% reply rate.”

creator-3

“write me a follow-up sequence. prospect didn't reply to my first email about our HR software. how many should I send and how far apart?”

creator-4

“Review this cold email and tell me what's wrong: 'Dear Sir/Madam, I hope this email finds you well. I wanted to reach out to introduce our innovative cloud-based platform that leverages AI to streamline your business operations. We have helped over 500 companies transform their workflows. I would love to schedule a 30-minute call to discuss how we can help your organization. Best regards, John'”

creator-5

“What are the best subject lines for cold emails? I want to maximize open rates.”

creator-6

“Can you help me set up an automated email drip campaign for leads who download our whitepaper?”

creator-7

“Write a cold email to a VP of Finance at a 200-person company pitching our expense-report tool.”

creator-8

“We're about to start cold email for our agency. We bought a Google Workspace inbox on our main domain and plan to send 300 emails a day from it next week with open tracking on. Anything we should change?”

creator-9

“Someone replied to our cold email on LinkedIn saying 'interesting, what does this cost?' but our email sequence is still running. What should happen now?”

Install

Download the .zip and unzip it. Put its files, in a folder named cold-email, here:

Claude Code~/.claude/skills/Every project. For one project only, use .claude/skills/ inside it.
Codex~/.agents/skills/Every project. For one repository only, use .agents/skills/ inside it.
Cursor~/.cursor/skills/Cursor also reads the Claude Code and Codex folders above.

Then start a new session and ask for what the skill does. Other agents that read SKILL.md have their own skills folder; check their docs.

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