
Cold Email Sequence Generator
- 432 installs
- 237 repo stars
- Updated July 15, 2026
- onewave-ai/claude-skills
cold-email-sequence-generator is a Claude Code agent skill that drafts personalized multi-touch cold email sequences with A/B subject lines and follow-up timing for developers and GTM engineers running outbound sales or
About
cold-email-sequence-generator is a Claude Code skill from onewave-ai/claude-skills that builds outbound email campaigns optimized for response rates. It generates 7–14 email sequences across five frameworks: Classic Cold Outreach (7 emails, 2 weeks), Fast-Track (5 emails, 1 week), Long-Play Nurture (12–14 emails, 4–6 weeks), Event/Trigger-Based (3–5 emails), and Re-Engagement (5 emails). Each sequence includes A/B subject line variations, recommended send days and times, follow-up spacing, social proof placement, resource shares, direct asks, and breakup emails. A classic 7-email flow spans Day 0 introduction through Day 14 breakup with expected open-rate bands per touch. Developers and revenue engineers invoke it when users need sales sequences, lead generation emails, or partnership outreach at scale while preserving research-driven personalization.
- Email sequences
- Outbound sales
- Follow-up cadence
- Personalization hooks
- Subject variants
Cold Email Sequence Generator by the numbers
- 432 all-time installs (skills.sh)
- +8 installs in the week ending Aug 4, 2026 (Skillselion tracking)
- Ranked #202 of 853 Sales & Marketing skills by installs in the Skillselion catalog
- Data as of Aug 5, 2026 (Skillselion catalog sync)
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| Installs | 432 |
|---|---|
| repo stars | ★ 237 |
| Last updated | July 15, 2026 |
| Repository | onewave-ai/claude-skills ↗ |
How do you write a multi-touch cold email sequence?
Draft multi-touch cold email sequences with subject lines, personalization hooks, and follow-ups for outbound sales, partnerships, and lead nurture campaigns.
Who is it for?
Developers and GTM engineers drafting structured outbound sequences with A/B subjects, timing tables, and social proof for B2B sales or partnership outreach.
Skip if: Inbound-only teams with no outbound motion, or transactional product email implemented in code rather than campaign copy generation.
When should I use this skill?
User asks for cold email sequences, outbound sales campaigns, multi-touch follow-ups, or lead generation email drafts with A/B subject lines.
What you get
7–14 email sequence drafts, A/B subject lines, send-day/time schedule, personalization hooks, and breakup/re-engagement templates.
- Multi-touch email sequence
- A/B subject line set
- Send schedule table
By the numbers
- Generates 7–14 emails per outbound sequence
- Defines 5 sequence frameworks including Classic, Fast-Track, and Long-Play
- Classic flow spans 7 emails from Day 0 through Day 14
Files
Cold Email Sequence Generator
Craft personalized, value-driven cold email sequences with optimal timing, A/B-tested subject lines, and integrated social proof. The goal of cold email is to start a conversation, not to close the sale in the inbox.
Contents
- references/email-templates.md — Per-position email templates (Emails 1-7), bodies, variables, and social-proof frameworks.
- references/output-format.md — Delivery structure, flow-and-timing table, sending best practices.
- references/optimization.md — A/B testing, performance benchmarks, segmentation, pro tips, setup checklist.
- references/quick-start-templates.md — Vertical-specific subject-line skeletons (SaaS, agency, partnership).
Workflow
1. Confirm the target audience (ICP) and the core value proposition with the user. 2. Select the sequence type: Classic Cold Outreach (7 emails / 2 weeks), Fast-Track (5 emails / 1 week), Long-Play Nurture (12-14 emails / 4-6 weeks), Event/Trigger-Based (3-5 emails), or Re-Engagement (5 emails). 3. Select the personalization level: Hyper-Personal (unique research per prospect), Account-Based (company-specific), Segment-Based (industry/role), or Volume (template with merge tags). 4. Identify the key pain points and the strongest social proof (case studies, stats, named customers) to support the campaign. 5. Build the sequence using the per-position templates in references/email-templates.md. Vary the angle across emails: Introduction, Value Proof, Different Angle, Social Proof, Resource Share, Direct Ask, Breakup. 6. Generate A/B subject-line variations and assign send timing per email, following references/output-format.md. 7. Add personalization guidance, performance benchmarks, and optimization recommendations from references/optimization.md. 8. Assemble the final deliverable in the structure defined in references/output-format.md.
Core Rules
- Always personalize the first line with something specific about the prospect or their company.
- Keep emails short; the best cold emails run under 100 words.
- Use one ask per email; never bury multiple CTAs.
- Honor replies immediately when a prospect says no or asks to stop.
- Run an A/B test on some variable in every campaign.
- Invest in follow-up: roughly 80% of responses come from emails 3-7.
Sequence Angle Map
| Angle | Length | CTA | |
|---|---|---|---|
| 1 | Introduction (problem + quick win) | 50-100 words | Soft ask |
| 2 | Value proof (case study) | 75-125 words | Specific meeting time |
| 3 | Different angle (alt pain point) | 50-75 words | Yes/no question |
| 4 | Social proof (peer validation) | 60-90 words | Simple reply |
| 5 | Resource share (give first) | 40-60 words | Soft (let me know) |
| 6 | Direct ask (clear value prop) | 30-50 words | Direct meeting request |
| 7 | Breakup (last attempt + opt-out) | 25-40 words | "Should I close your file?" |
Email Templates by Sequence Position
The classic 7-email sequence. Each entry lists goal, send timing, subject options, body template, and supporting frameworks. Adapt length and angle per the sequence type and personalization level chosen.
Email 1: The Introduction
Send: Day 0 at 10:00 AM (Tuesday-Thursday) Goal: Get them to read and recognize you are relevant.
Subject lines (A/B test):
- Version A (Curiosity):
Quick question about [their company]'s [specific challenge] - Version B (Value):
[Quantifiable outcome] for [their company type] - Version C (Personalized):
[Name], saw your post about [specific topic] - Recommended: Test A vs B initially; use C for highly personalized segments.
Body:
Hi [First Name],
I noticed [specific observation about their company/role/recent activity] and thought you might be facing [specific challenge common to their situation].
We've helped [similar company 1] and [similar company 2] [achieve specific outcome] without [common objection/pain point].
Worth a quick 15-minute conversation to see if we can do the same for [their company]?
Best,
[Your Name]
[Your Title]
[Company]
P.S. - [Personalized one-liner based on research - optional but powerful]Variables to customize:
| Variable | Example | How to Find |
|---|---|---|
[specific observation] | "you're expanding to 3 new regions" | LinkedIn, company news, press releases |
[specific challenge] | "managing distributed team security" | Job postings, industry reports, LinkedIn posts |
[similar company 1] | "Acme Corp (Series B, 50 employees)" | Your customer list, same industry/stage |
[achieve specific outcome] | "reduce onboarding time by 60%" | Your case studies with metrics |
[common objection] | "expensive consultants or long implementations" | Common buying objections in sales calls |
Personalization examples:
SaaS company:
Hi Sarah,
>
I saw Acme Software raised a Series B last month (congrats!) and is hiring 15 sales reps according to LinkedIn. That kind of growth usually creates onboarding bottlenecks.
>
We helped ChartMogul and Segment cut new rep ramp time by 40% without adding headcount to training teams.
>
Worth a quick call to see if we could help Acme do the same?
Enterprise:
Hi John,
>
Noticed your team at GlobalTech recently posted 8 cloud security engineer roles. When my previous clients scaled that fast, credential management became a nightmare.
>
We've helped Fortune 500 IT teams like yours at Cisco and IBM automate access controls, cutting security incidents by 75%.
>
15 minutes to discuss your approach?
Email 2: The Value Proof
Send: Day 2 at 11:00 AM Goal: Establish credibility with concrete evidence. Subject: "How [Similar Company] achieved [specific result]"
Body:
[First Name],
Following up on my email from [day of week]—wanted to share a quick example of how this worked for a company like [their company].
[Similar Company Name] was [specific situation similar to prospect's]. In just [timeframe], they:
- [Specific result #1 with metric]
- [Specific result #2 with metric]
- [Specific result #3 with metric]
The best part? They got started in under [timeframe] without [common objection].
[Link to case study] if you want details.
Happy to walk through how we might replicate this for [their company]—would [Day] at [Time] or [alternate time] work for 15 minutes?
[Your Name]Social proof options:
Case study format:
Intercom was struggling with [problem]. Using [your solution], they [action taken] and achieved [result] in [timeframe].Stats format:
Teams using [your solution] typically see:
- [X%] increase in [metric]
- [X%] decrease in [problem]
- [X hour/day/week] saved on [task]Name-drop format:
Companies like Stripe, Notion, and Figma use [solution] for [use case]—they've seen [common result].Email 3: The Different Angle
Send: Day 4 at 2:00 PM Goal: Address an alternative pain point they may care more about. Subject: "Different thought about [their company]"
Body:
Hi [First Name],
I realize [original pain point from Email 1] might not be top of mind right now.
But what about [alternative pain point]?
Most [their role/title]s we talk to say [common complaint], which is why [mini value prop related to this pain point].
Just a thought—but if this hits closer to home, happy to share how [quick win].
[Your Name]
P.S. - If neither of these are relevant, just let me know and I'll stop bothering you!Alternative angle ideas:
| Original Angle | Alternative Angle |
|---|---|
| Save money | Save time |
| Increase efficiency | Reduce risk |
| Scale faster | Improve quality |
| Better metrics | Better team morale |
| Revenue growth | Customer retention |
Email 4: The Social Proof
Send: Day 6 at 10:30 AM Goal: Show peer validation. Subject: "[Mutual connection] suggested I reach out" OR "How [competitor] is handling [challenge]"
Body:
[First Name],
Quick note—I was speaking with [name/title] at [similar company or competitor] last week about [challenge].
They mentioned that [insight or approach they're taking], which made me think of our previous emails about [their company].
Here's what [name] said after implementing [solution]:
"[Direct quote with specific result]"
Not sure if you're taking a similar approach at [their company], but figured it was worth sharing.
Open to a quick call if you'd like to hear more about what's working in [their industry/role]?
[Your Name]Social proof frameworks:
Option 1 (Testimonial):
"[Solution] cut our [process] time by half. Paid for itself in 2 months."
- [Name, Title, Company]Option 2 (Industry stat):
84% of [their industry] teams report [problem]. Those using [your solution] reduced that to 12%.Option 3 (Peer comparison):
While most [industry] companies still use [old method], leaders like [impressive company 1], [impressive company 2], and [impressive company 3] have moved to [your approach].Email 5: The Resource Share
Send: Day 8 at 3:00 PM Goal: Give value without asking for anything. Subject: "Thought you might find this useful"
Body:
[First Name],
No ask here—just wanted to share something that might help:
[Brief description of valuable resource]:
[Link to guide/video/tool]
We created this after hearing [their role]s consistently struggle with [pain point]. Lots of actionable tips even if you never use our product.
Hope it's helpful!
[Your Name]
P.S. - If you do find it useful and want to chat about [main topic], I'm around.Resource ideas (content types): industry benchmark report, how-to guide/checklist, template or tool, webinar recording, calculator/ROI tool, comparison guide, research study.
Example:
I put together "The Sales Onboarding Playbook" after interviewing 50 VPs of Sales about what's working.
Includes:
- Onboarding timeline template
- Training curriculum framework
- Metrics to track
- Tools comparison
No forms, no gates—just helpful stuff: [link]Email 6: The Direct Ask
Send: Day 10 at 9:00 AM Goal: No games, direct meeting request. Subject: "Let's cut to the chase"
Body:
[First Name],
I've sent a few emails about [main value prop], but let me be direct:
I think we could help [their company] [achieve specific outcome] based on [specific observation about their situation].
If you're open to it, I'd like to show you:
1. [Specific thing #1 you'll show]
2. [Specific thing #2 you'll show]
3. [How others in their position use it]
15 minutes. No pressure. Just showing you what's possible.
How's [specific day/time]?
[Your Name]
[Phone number - make it easy]Direct ask frameworks:
Option 1 (Specific time):
Are you free Tuesday at 2 PM or Wednesday at 10 AM for 15 minutes? I'll send a calendar invite.Option 2 (Open-ended):
What does your calendar look like next week? Happy to work around your schedule.Option 3 (Low-commitment):
Want to start with a 10-minute screen share? I can show you [specific thing] and you can decide if it's worth exploring more.Email 7: The Breakup
Send: Day 14 at 4:00 PM Goal: Final attempt with FOMO and respect. Subject: "Should I close your file?"
Body:
[First Name],
I'm going to assume [topic] isn't a priority right now, and that's totally fine.
I'll close your file on my end unless I hear otherwise.
For what it's worth, we typically see the best results when [time-sensitive reason], so if you do want to revisit this in the future, might be worth a quick conversation now.
But no worries either way—appreciate your time.
[Your Name]
P.S. - If there's someone else at [their company] I should be talking to about this instead, happy to redirect.Breakup email variations:
Option 1 (FOMO):
Subject: "Taking you off the list"
[Name], I'll take you off my follow-up list since I haven't heard back.
Just FYI—[competitor or similar company] just started implementation this week and they're seeing [early result] already.
If you change your mind in the next quarter, let me know. Otherwise, all the best!Option 2 (Permission):
Subject: "Is this a bad time?"
[Name], haven't heard back so I'm assuming this either:
1. Isn't relevant
2. Isn't a priority
3. Bad timing
Which is it? If it's #3, when should I check back in?Option 3 (Referral ask):
Subject: "Wrong person?"
[Name], clearly I'm not reaching the right person at [Company].
Should I be talking to someone else about [topic]? Happy to redirect.Optimization: A/B Testing, Metrics, Segmentation, Pro Tips
A/B Testing Strategy
Test variables, in priority order.
Subject lines (test first):
- Question vs. statement
- Generic vs. personalized
- Short (3-5 words) vs. long (8-12 words)
- Curiosity vs. value prop
Email body:
- Length: short (50 words) vs. medium (100 words)
- CTA: link vs. question vs. time slot
- Bullets vs. paragraph format
- Social proof: stats vs. names vs. quotes
Sending time:
- Morning (9-11 AM) vs. afternoon (2-4 PM)
- Tuesday vs. Wednesday vs. Thursday
- Recipient's time zone (test if worth the complexity)
Sample A/B test (Email 1):
- Version A: Curiosity subject + short email (50 words) + question CTA
- Version B: Value subject + medium email (100 words) + meeting-time CTA
Send to 100 prospects: 50 get A, 50 get B. Wait 48 hours, measure open and reply rates. Send the winner to the remaining list.
Sequence Performance Metrics
| Metric | Good | Great | Exceptional |
|---|---|---|---|
| Email 1 Open Rate | 35-45% | 45-55% | 55%+ |
| Email 1 Reply Rate | 3-8% | 8-15% | 15%+ |
| Sequence Reply Rate | 8-15% | 15-25% | 25%+ |
| Positive Reply % | 40-50% | 50-70% | 70%+ |
| Meeting Booked % | 1-3% | 3-6% | 6%+ |
Drivers of high reply rates: highly personalized opening line; clear value prop in the first two sentences; social proof from similar companies; low-friction CTA; sent at an optimal time; clean formatting (no images, minimal links).
Drivers of low reply rates: generic template language; overly salesy tone; no personalization; vague value prop; lengthy paragraphs; broken links or poor formatting.
Segmentation Strategy
By industry: change case studies to the same industry; adjust pain points to be industry-specific; use industry terminology.
By company size:
- Startup: speed, agility, ROI focus
- Mid-market: scalability, efficiency
- Enterprise: security, compliance, integration
By role:
- Executive: strategic outcomes, revenue impact
- Practitioner: time savings, ease of use
- Technical: architecture, integrations, specs
By intent signal:
- Hot leads: shorter sequence, faster cadence
- Warm leads: standard 7-email sequence
- Cold leads: longer nurture sequence
Pro Tips
1. The 3-second rule: prospect should understand value in the first 3 seconds of reading. 2. One CTA only: give one clear next step. 3. Mobile-first: 50%+ of emails open on mobile; keep it scannable. 4. No attachments: use links; attachments trigger spam filters. 5. Real reply-to: use your actual email, not no-reply@, and reply. 6. Personalization tokens: use sparingly; obvious automation kills trust. 7. The P.S. works: postscripts get read; use for a secondary CTA. 8. No formal unsubscribe needed for 1-to-1 prospecting.
What to avoid:
- Spam trigger words: "Free", "Limited time", "Act now", "$$$$", "Make money", ALL CAPS, excessive exclamation points.
- Design no-nos: images (especially logos), HTML-heavy templates, multiple font colors/sizes, long links (use shorteners).
Setup Checklist
- [ ] Sender email has good deliverability (SPF, DKIM, DMARC)
- [ ] Sender email is warmed up (sent successful emails recently)
- [ ] List is cleaned (no invalid emails)
- [ ] Personalization variables all filled
- [ ] Links tested and tracked
- [ ] CRM integration working
- [ ] Reply handling process in place
- [ ] Unsubscribe process ready
- [ ] A/B tests configured
- [ ] Time-zone sending enabled
- [ ] Daily send limits set (avoid spam flags)
Output Format
Structure the delivered sequence as follows.
# Cold Email Sequence: [Campaign Name]
**Campaign Details**:
- **Target Audience**: [ICP description]
- **Sequence Type**: [7-email classic / fast-track / etc.]
- **Duration**: [Total days]
- **Sender**: [From name and role]
- **Expected Reply Rate**: [X-X%]Email Flow and Timing Table
| Email # | Day | Time | Subject | Goal | Expected Open Rate |
|---|---|---|---|---|---|
| 1 | Day 0 | 10:00 AM | [Subject A/B test] | Introduction | 40-50% |
| 2 | Day 2 | 11:00 AM | [Subject] | Value proof | 30-40% |
| 3 | Day 4 | 2:00 PM | [Subject] | Different angle | 25-35% |
| 4 | Day 6 | 10:30 AM | [Subject] | Social proof | 20-30% |
| 5 | Day 8 | 3:00 PM | [Subject] | Resource share | 15-25% |
| 6 | Day 10 | 9:00 AM | [Subject] | Direct ask | 12-20% |
| 7 | Day 14 | 4:00 PM | [Subject] | Breakup email | 10-18% |
Sending Best Practices
- Tuesdays-Thursdays produce the highest open rates.
- 10-11 AM and 2-3 PM are optimal send times.
- Avoid Mondays (inbox overload) and Fridays (weekend mode).
- Send based on the recipient's local time zone.
After the table, render each email in full: send time, goal, subject A/B options, body, and any per-email variable or framework notes. See email-templates.md for the per-position templates.
Quick-Start Sequence Templates
Subject-line skeletons for common verticals. Use as a starting frame, then fill with prospect-specific detail.
SaaS Sales Sequence
Email 1: "Quick question about [Company]'s [growth metric]"
Email 2: "How [Competitor] increased [metric] by X%"
Email 3: "Different angle: [Alternative pain point]"
Email 4: "[Mutual Connection] suggested I reach out"
Email 5: "Free resource: [Industry] benchmark report"
Email 6: "Let's cut to the chase: 15 min demo?"
Email 7: "Should I close your file?"Agency/Services Sequence
Email 1: "Saw your [recent achievement], impressive work"
Email 2: "Case study: [Similar client] results"
Email 3: "Quick idea for [their specific challenge]"
Email 4: "What [their competitor] is doing differently"
Email 5: "No-strings-attached audit of [their thing]"
Email 6: "15 minutes to share our approach?"
Email 7: "Is this a bad time?"Partnership/Referral Sequence
Email 1: "[Mutual contact] suggested we connect"
Email 2: "Potential win-win for both our audiences"
Email 3: "How [similar partner] approach worked"
Email 4: "Quick question about your [partnership program]"
Email 5: "Is this worth exploring?"Related skills
How it compares
Pick cold-email-sequence-generator over single-email copy skills when you need full multi-touch schedules, A/B subjects, and breakup/re-engagement arcs for outbound campaigns.
FAQ
How many emails does cold-email-sequence-generator create?
cold-email-sequence-generator creates 7–14 emails depending on the chosen framework. Classic Cold Outreach uses 7 emails over 2 weeks; Long-Play Nurture spans 12–14 emails over 4–6 weeks.
Which sequence types does cold-email-sequence-generator support?
cold-email-sequence-generator supports five types: Classic Cold Outreach, Fast-Track, Long-Play Nurture, Event/Trigger-Based, and Re-Engagement. Each type defines email count, spacing, and goal per touch.
What outputs does a classic 7-email flow include?
cold-email-sequence-generator's classic flow schedules seven touches from Day 0 introduction through Day 14 breakup, each with subject A/B variants, send time, goal, and expected open-rate guidance.