Cold Email Writing

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

How to use it

  1. Hit Copy SKILL.md — or use the Claude Code line below to get every file.
  2. Claude: ⋯ → Download .md, then Customize → Skills → Add → Upload skill.
    ChatGPT: make a Project and paste it into Instructions.
    Neither? Paste it at the top of a new chat — it works for that chat.
  3. Describe your job in plain words. The AI follows the skill from there.
Claude Code — installs the whole folder, not just SKILL.md
npx degit coreyhaines31/marketingskills/skills/cold-email#main ~/.claude/skills/cold-email

For one project only, change the path to .claude/skills/cold-email. This skill also uses product-marketing-context.md, personalization.md, frameworks.md, subject-lines.md, follow-up-sequences.md, benchmarks.md — copying SKILL.md alone won't be enough. See the folder on GitHub.

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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

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 — not someone 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 — not to sell.

  • 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.

  • 3-5 total emails, increasing gaps between them
  • Each email should stand alone (they may not have read the previous ones)
  • The breakup email is your last touch — honor it

See follow-up-sequences.md for cadence, angle rotation, and breakup email templates.


Quality Check

Before presenting, gut-check:

  • Does it sound like a human wrote it? (Read it aloud)
  • Would YOU reply to this if you received it?
  • Does every sentence serve the reader, not the sender?
  • Is the personalization connected to the problem?
  • Is there one clear, low-friction ask?

What to Avoid

  • Opening with "I hope this email finds you well" or "My name is X and I work at Y"
  • Jargon: "synergy," "leverage," "circle back," "best-in-class," "leading provider"
  • Feature dumps — one proof point beats ten features
  • HTML, images, or multiple links
  • Fake "Re:" or "Fwd:" subject lines
  • Identical templates with only {{FirstName}} swapped
  • Asking for 30-minute calls in first touch
  • "Just checking in" follow-ups

Data & Benchmarks

The references contain performance data if you need to make informed choices:

  • benchmarks.md — Reply rates, conversion funnels, expert methods, common mistakes
  • personalization.md — 4-level personalization system, research signals
  • subject-lines.md — Subject line data and optimization
  • follow-up-sequences.md — Cadence, angles, breakup emails
  • frameworks.md — All copywriting frameworks with examples

Use this data to inform your writing — not as a checklist to satisfy.


Related Skills

  • prospecting: For building and qualifying the prospect list that this skill writes outreach against — the natural upstream step before cold-email
  • copywriting: For landing pages and web copy
  • emails: For lifecycle/nurture email sequences (not cold outreach)
  • social: For LinkedIn and social posts
  • product-marketing: For establishing foundational positioning
  • revops: For lead scoring, routing, and pipeline management
1---
2name: cold-email
3description: 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. Also use when the user mentions "cold outreach," "prospecting email," "outbound email," "email to leads," "reach out to prospects," "sales email," "follow-up email sequence," "nobody's replying to my emails," or "how do I write a cold email." Covers subject lines, opening lines, body copy, CTAs, personalization, and multi-touch follow-up sequences. For warm/lifecycle email sequences, see emails. For sales collateral beyond emails, see sales-enablement.
4metadata:
5 version: 2.0.0
6---
7 
8# Cold Email Writing
9 
10You 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.
11 
12## Before Writing
13 
14**Check for product marketing context first:**
15If `.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.
16 
17Understand the situation (ask if not provided):
18 
191. **Who are you writing to?** — Role, company, why them specifically
202. **What do you want?** — The outcome (meeting, reply, intro, demo)
213. **What's the value?** — The specific problem you solve for people like them
224. **What's your proof?** — A result, case study, or credibility signal
235. **Any research signals?** — Funding, hiring, LinkedIn posts, company news, tech stack changes
24 
25Work 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.
26 
27---
28 
29## Writing Principles
30 
31### Write like a peer, not a vendor
32 
33The email should read like it came from someone who understands their world — not someone trying to sell them something. Use contractions. Read it aloud. If it sounds like marketing copy, rewrite it.
34 
35### Every sentence must earn its place
36 
37Cold 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.
38 
39### Personalization must connect to the problem
40 
41If 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.
42 
43See [personalization.md](references/personalization.md) for the 4-level system and research signals.
44 
45### Lead with their world, not yours
46 
47The 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.
48 
49### One ask, low friction
50 
51Interest-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.
52 
53---
54 
55## Voice & Tone
56 
57**The target voice:** A smart colleague who noticed something relevant and is sharing it. Conversational but not sloppy. Confident but not pushy.
58 
59**Calibrate to the audience:**
60 
61- C-suite: ultra-brief, peer-level, understated
62- Mid-level: more specific value, slightly more detail
63- Technical: precise, no fluff, respect their intelligence
64 
65**What it should NOT sound like:**
66 
67- A template with fields swapped in
68- A pitch deck compressed into paragraph form
69- A LinkedIn DM from someone you've never met
70- 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")
71 
72---
73 
74## Structure
75 
76There's no single right structure. Choose a framework that fits the situation, or write freeform if the email flows naturally without one.
77 
78**Common shapes that work:**
79 
80- **Observation → Problem → Proof → Ask** — You noticed X, which usually means Y challenge. We helped Z with that. Interested?
81- **Question → Value → Ask** — Struggling with X? We do Y. Company Z saw [result]. Worth a look?
82- **Trigger → Insight → Ask** — Congrats on X. That usually creates Y challenge. We've helped similar companies with that. Curious?
83- **Story → Bridge → Ask** — [Similar company] had [problem]. They [solved it this way]. Relevant to you?
84 
85For the full catalog of frameworks with examples, see [frameworks.md](references/frameworks.md).
86 
87---
88 
89## Subject Lines
90 
91Short, boring, internal-looking. The subject line's only job is to get the email opened — not to sell.
92 
93- 2-4 words, lowercase, no punctuation tricks
94- Should look like it came from a colleague ("reply rates," "hiring ops," "Q2 forecast")
95- No product pitches, no urgency, no emojis, no prospect's first name
96 
97See [subject-lines.md](references/subject-lines.md) for the full data.
98 
99---
100 
101## Follow-Up Sequences
102 
103Each follow-up should add something new — a different angle, fresh proof, a useful resource. "Just checking in" gives the reader no reason to respond.
104 
105- 3-5 total emails, increasing gaps between them
106- Each email should stand alone (they may not have read the previous ones)
107- The breakup email is your last touch — honor it
108 
109See [follow-up-sequences.md](references/follow-up-sequences.md) for cadence, angle rotation, and breakup email templates.
110 
111---
112 
113## Quality Check
114 
115Before presenting, gut-check:
116 
117- Does it sound like a human wrote it? (Read it aloud)
118- Would YOU reply to this if you received it?
119- Does every sentence serve the reader, not the sender?
120- Is the personalization connected to the problem?
121- Is there one clear, low-friction ask?
122 
123---
124 
125## What to Avoid
126 
127- Opening with "I hope this email finds you well" or "My name is X and I work at Y"
128- Jargon: "synergy," "leverage," "circle back," "best-in-class," "leading provider"
129- Feature dumps — one proof point beats ten features
130- HTML, images, or multiple links
131- Fake "Re:" or "Fwd:" subject lines
132- Identical templates with only {{FirstName}} swapped
133- Asking for 30-minute calls in first touch
134- "Just checking in" follow-ups
135 
136---
137 
138## Data & Benchmarks
139 
140The references contain performance data if you need to make informed choices:
141 
142- [benchmarks.md](references/benchmarks.md) — Reply rates, conversion funnels, expert methods, common mistakes
143- [personalization.md](references/personalization.md) — 4-level personalization system, research signals
144- [subject-lines.md](references/subject-lines.md) — Subject line data and optimization
145- [follow-up-sequences.md](references/follow-up-sequences.md) — Cadence, angles, breakup emails
146- [frameworks.md](references/frameworks.md) — All copywriting frameworks with examples
147 
148Use this data to inform your writing — not as a checklist to satisfy.
149 
150---
151 
152## Related Skills
153 
154- **prospecting**: For building and qualifying the prospect list that this skill writes outreach against — the natural upstream step before cold-email
155- **copywriting**: For landing pages and web copy
156- **emails**: For lifecycle/nurture email sequences (not cold outreach)
157- **social**: For LinkedIn and social posts
158- **product-marketing**: For establishing foundational positioning
159- **revops**: For lead scoring, routing, and pipeline management
160 

Discussion

From GitHub

2 comments on 1 thread

## Placement decision (recorded) - **Canonical / public leaderboard → marketing-skills.com.** Neutral, open, MIT-credible — the citable authority asset and backlink magnet. Its value is *perceived neutrality*, so it must stay editorially independent (methodology-first; Magister is a footnote, not a sponsor banner). - **Reference / embed → magistermarketing.com.** Magister captures commercial value by *pointing at* the neutral board ("we route to the best model per task, proven by the open benchmark"), embedding it via a shared component/iframe with `rel=canonical` back to marketing-skills.com.read the rest

## Cost & time — the benchmark is triaxial Quality is one axis; **cost and latency are the other two.** Every run logs: - **Tokens** (input+output) — the price-stable base. Dollars = tokens × a **versioned pricing table** ("as of" date; account for batch/cached-input discounts and tiers). - **Latency** — p50/p95, TTFT + total, over many runs (noisy — never one-shot). **The metric that decides routing is cost/latency *per accepted output*, not per call.** A cheap model that fails half the time isn't cheap — you regenerate. So `cost-per-PASS = $/output ÷ pass-rate` and `time-per-PASS` fuse qualiread the rest

Alternatives

Also in Email sequences