Claude Prompts for Cold Email: 7 Complete Prompts You Can Copy
Copy-paste prompts with the constraints built in: banned phrases, hard word caps, and a no-invented-facts rule. The difference between output you send and output you rewrite.
Seven complete Claude prompts for cold email — first touch, ultra-short, follow-up, breakup, subject lines, a de-AI rewrite pass, and personalization at scale. Copy them as written. But read the first section first, because the prompts only work if you feed them what they ask for.
Why most AI-written cold emails get deleted on sight
When you give Claude a name, a job title, and “write a cold email,” it has almost nothing to work with — so it fills the gaps with the average of every cold email ever written: “I hope this finds you well,” “I know you're busy,” something about streamlining workflows. Your prospect has seen that exact email fifty times. The model isn't bad at cold email; the input was empty, so the output is generic.
Every prompt below therefore forces you to supply three things before Claude writes a word:
- A real trigger — something specific and recent about this prospect (a hire, a launch, a review they got, a thing on their site) that explains “why you, why now.”
- A one-sentence offer stated as their outcome, not your service.
- Hard constraints — word caps, a banned-phrase list, one call to action. Constraints are what make it sound human.
A cold email prompt without a trigger is a template engine. With one, it's a ghostwriter.
Prompt 1 — The first-touch email (the workhorse)
You write cold emails that sound like one busy owner writing to another. About me: [who you are + what you sell, one sentence, stated as the outcome the buyer gets] Prospect: [name, company, what the company does] Trigger — why them, why now: [the specific recent thing you noticed] Proof I can point to: [one true, verifiable thing — a result, a sample, a relevant piece of work. If I gave none, write the email without proof claims rather than inventing any.] Write a first-touch cold email. Constraints: - 90 words max, 4 sentences max - Open with the trigger, not with who I am - One question as the only call to action; asking for interest, not a meeting - No exclamation points, no "hope this finds you well", no "I know you're busy", no "streamline", no "solution", no "circle back", no flattery - 3rd-grade reading level, no jargon - Do not invent facts, numbers, or claims I didn't give you Give me 3 versions: safe, direct, and one with a light, dry first line.
The last constraint matters most. Claude will invent a plausible case study if you let it — and a fabricated claim in a cold email isn't just cringe, it's the fastest way to torch a reputation with a stranger. Tell it explicitly: no proof supplied, no proof claimed.
Prompt 2 — The four-sentence version
For prospects who clearly get heavy outreach (agencies, SaaS founders, anyone with a public inbox), shorter wins the skim:
Rewrite the email below to exactly 4 sentences and under 55 words: 1. The trigger (what I noticed about them). 2. The outcome I offer, in their words not mine. 3. One line of proof — only if real proof appears in my draft. 4. A yes/no question. Keep my facts exactly as written. Cut every adjective that isn't load-bearing. No greeting-line filler; "Hi [name]," then straight in. My draft: [paste anything — bullet points are fine]
Prompt 3 — The day-3 follow-up (adds value, never "bumps")
Write a follow-up to a cold email that got no reply. It must add one
NEW useful thing, not ask again harder.
The original email said: [paste]
New thing I can add: [a genuinely useful observation, resource, or idea
specific to them — if I left this blank, ask me for it instead of writing]
Constraints:
- 60 words max, references the original in half a sentence, no guilt
("just floating this back up", "in case you missed it" are banned)
- Ends with an easy out: make "no" a one-word reply they can send
without feeling rude
- Same banned-phrase list and no-invented-facts rule as beforeNote the design: if you have nothing new to say, the prompt refuses to write. That's intentional. A follow-up with no new value is just the first email with more desperation.
Prompt 4 — The breakup email
Write the final email in a cold sequence — the "closing the loop" note.
Context: [who they are, what I offered, how many emails sent]
Constraints:
- 50 words max. Tone: relaxed, zero guilt, zero passive aggression
- State plainly I'll stop emailing
- Leave one concrete door open ("if [specific situation] comes up,
I'm easy to find")
- No "last chance", no fake scarcity, no "did I do something wrong"Prompt 5 — Subject lines that survive the inbox
Generate 10 subject lines for the email below. Constraints: - 4 words or fewer, lowercase unless a proper noun - Must read like an internal note a colleague would send, not a campaign - No clickbait, no "quick question", no "re:" faking a reply thread, no emoji, no personalization tokens that could misfire - At least 3 should reference the trigger specifically Then mark which 2 you'd actually send and say why in one line each. The email: [paste]
Prompt 6 — The de-AI pass (run everything through this)
Whatever wrote your draft — Claude, you at 1am, an old template — this pass strips the tells that make readers smell a robot:
Edit this email so no reader would guess AI touched it.
- Remove: balanced "not only X but Y" constructions, rule-of-three
lists, "leverage/streamline/unlock/elevate", every em dash, any
sentence that compliments them generically
- Vary sentence length; at least one sentence under 6 words
- Replace any abstract benefit with the concrete version ("save time"
-> what they'd actually stop doing)
- Keep all facts exactly as written. If a sentence has no job, delete it.
- Return the edit, then a one-line list of what you changed and why.
Email: [paste]Prompt 7 — Personalization at scale (without the mail-merge smell)
I'm sending one offer to prospects in [industry/niche]. For each prospect below I've included research notes. For EACH one, write a 90-word first-touch email using the Prompt 1 rules. Non-negotiables: - The first sentence must be unwritable for any other prospect on the list. If my notes for a prospect are too thin to do that, output "NOTES TOO THIN" for that row instead of writing a generic email. - Same banned phrases, same no-invented-facts rule. Prospects: 1. [name / company / notes: the specific thing you noticed] 2. [name / company / notes] 3. [...]
The “NOTES TOO THIN” rule is the whole trick. It converts Claude from a generic-email factory into a quality gate on your own research — the emails that survive are the ones worth sending.
The part no prompt can fix
Copy is the last mile. If your domain isn't warmed up, your list is scraped junk, or your authentication records (SPF/DKIM/DMARC) aren't set, the best-written email on earth lands in spam unread. We wrote a separate field checklist on exactly that: AI cold email that doesn't land in spam. Read it before you send anything. And if you want the same prompt discipline applied beyond outreach — ops, content, audits — see AI prompts that actually run a business.
Prefer prompts over templates? The Operator Prompt Arsenal ($17) is 20 of our internal operating prompts — outreach, content, audit, delegation — written in this same constrained style, fill-the-brackets ready.