All skills
coreyhaines31 avatar

/cold-email

@f86637e

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.

Use this Skill: https://skilld.dev/gh/coreyhaines31/marketingskills/cold-email

This session only. Nothing lands on disk.

referencesbenchmarks.md

≈1.5k tokens on demand. Your agent reads this file only when SKILL.md points to it.

Benchmarks, Data & Expert Methods

Core Performance Metrics (2024–2025)

Metric Average Good Excellent Source
Open rate 27.7% 40–45% 50%+ Belkins, Snov.io
Reply rate 4–5.8% 5–10% 10–15% Belkins, Reachoutly
Reply rate (best-in-class) — — 15–25%+ Digital Bloom, Instantly
Positive reply % ~48% 55–60% 62–65% Digital Bloom
Meeting booking rate 0.5–1% 1–2% 2.3%+ Reachoutly
Bounce rate 7.5% <4% <2% Belkins

Realistic Funnel Model

500 emails → 100 opens (20%) → 25 replies (5%) → 8 positive replies (30%) → 4 meetings (50%) → 1 client (25% close). ~0.2% end-to-end conversion for average performers.

Performance Levers (ranked by impact)

  1. Hook type — Timeline hooks outperform problem hooks by 3.4x in meetings
  2. Personalization depth — Up to 250% more replies
  3. Brevity — 25–75 words optimal, 83% more replies under 75 words
  4. Targeting precision — ≤50 contacts per campaign = 2.76x higher reply rates
  5. Follow-up strategy — First follow-up adds 49% more replies
  6. Reading level — 3rd–5th grade = 67% more replies
  7. Send timing — Thursday peaks at 6.87% reply rate

Declining Effectiveness Trend

Reply rates dropped from 7–8% (2020–2022) to 4–5.8% (2024–2025), ~15% YoY decline. Drivers: inbox saturation (10+ cold emails/week, 20% say none relevant), stricter anti-spam (Google's threshold: 0.1% complaints), AI email flood (more volume, less quality signal). Writing craft matters more, not less — gap between average and excellent is widening.

Response Rates by Seniority

  • Entry-level: Highest engagement at 8% reply, 50% open
  • C-level: 23% more likely to respond than non-C-suite when they engage (6.4% vs 5.2%)
  • CTOs/VP Tech: 7.68% reply
  • CEOs/Founders: 7.63% reply
  • Heads of Sales: 6.60% (most targeted role, highest saturation)

Industry Variation

Highest responding: Nonprofits (16.5%+), legal (10%), EdTech (7.8%), chemical (7.3%), manufacturing (6.1%). Lowest responding: SaaS (3.5%), financial services (3.4%), IT services (3.5%).

Top 15 Mistakes (ranked by impact)

  1. Too long — 70% of emails above 10th-grade level. Under 75 words = 83% more replies
  2. Too self-focused — "We are a leading..." signals sales pitch. Count I/We sentences
  3. No clear value prop — 71% of decision-makers ignore irrelevant emails
  4. Generic templates — {{FirstName}} isn't personalization. Recipients detect instantly
  5. Feature dumping — "Great reps lead with problems" (Lavender). One proof point beats ten features
  6. False personalization — "Loved your post!" without specifics is transparent
  7. Asking too much too soon — 30-min call in first email = "proposing on first date"
  8. Pushy language — "Act Now" stacking increases spam flagging by 67%
  9. No CTA — Without a clear next step, momentum dies
  10. "Just checking in" follow-ups — "I never heard back" = 12% drop in bookings
  11. Wrong tone for audience — Founder ≠ RevOps lead ≠ sales leader
  12. Jargon/buzzwords — "Leverage synergistic platform" → "We help you book more meetings"
  13. Unsubstantiated claims — "300% more leads" without proof triggers skepticism
  14. Too many contacts per company — 1–2 people = 7.8% reply; 10+ = 3.8%
  15. Fake urgency — Fake "Re:" / "Fwd:" / countdown timers destroy trust

Cultural Calibration

Factor US UK Germany/DACH Scandinavia
Tone Direct, casual Polite, professional Precise, data-driven Fact-based, egalitarian
Length Shorter, blunt Longer, insight-led Detail-oriented Concise but substantive
Social proof Outcome numbers Research-led credibility Technical precision Shared values

North America: 4.1% response. Europe: 3.1%. Asia-Pacific: 2.8%. Shorter, more direct sequences work better in US. UK needs more insight/personality. GDPR affects European tone.

Expert Quick Reference

Expert Core Method Best For
Alex Berman 3C's: Compliment → Case Study → CTA High-ticket B2B services, agencies
Josh Braun "Poke the Bear" — neutral questions exposing invisible problems Empathy-driven consultative selling
Kyle Coleman Systematic research + AI personalization at scale Bridging mass outreach and deep personalization
Becc Holland Psychographic personalization, Premise Buckets Combining personalization with relevance
Will Allred Data-driven coaching, Mouse Trap, Vanilla Ice Cream Any context; universal frameworks
Justin Michael 1–3 sentence hyper-brevity, quote their own words High-velocity SDR teams at scale
Sam Nelson Agoge Sequence — Triple on Day 1 (email + LinkedIn + call) Multi-channel, tiered personalization

Source: SKILL.md on GitHub

1 warning16d5 checks · Risk SAFE
  • Gen Agent Trust Hub16d

    No security issues were detected. The skill provides high-quality instructions, frameworks, and benchmarks for writing B2B cold emails and follow-up sequences without any malicious capabilities or obfuscation.

  • Socket16d

    No alerts

  • Snyk16d

    Risk: LOW · No issues

  • Runlayer7mo

    2/6 files flagged

  • ZeroLeaks5mo

    1 finding · Score: 69/100

Signed by skilld at f86637e. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 2 hours ago.

Activeupdated 4 months ago
metadata
{
  "version": "2.0.0"
}
  • cold-email
  • sales
  • b2b
  • outreach
  • prospecting
  • email-sequences
  • copywriting
  • sdr

README badge

README badge for coreyhaines31/marketingskills/cold-email

Writes B2B cold emails and follow-up sequences designed to get replies, covering subject lines, opening hooks, body copy, calls-to-action, and multi-touch cadences. Targets sales development reps, founders, and sales teams doing outbound prospecting and includes frameworks for personalization based on research signals and role-level calibration.

Generated from the current SKILL.md.

Does this skill write emails for warm outreach or lifecycle sequences?
No. This skill focuses on cold outreach and B2B prospecting emails. For warm/lifecycle email sequences, use the emails skill instead.
What if I don't have research signals or proof points for my prospect?
The skill works with whatever you provide. If you have a strong value prop and clear outcome, that's enough to start writing. The skill will note what would make the email stronger but won't block on missing inputs.
Can I use templates or frameworks from this skill?
Yes. The skill provides copywriting frameworks (Observation → Problem → Proof → Ask, Question → Value → Ask, etc.) and references for subject lines, follow-up sequences, and personalization strategies. These are starting points, not rigid templates to fill in.
Does this skill cover follow-up sequences?
Yes. It covers multi-touch follow-up sequences with cadence, angle rotation, and breakup email templates. Each follow-up should add new proof or a different angle rather than just checking in.
What tone should cold emails have?
Write like a peer or colleague, not a vendor. Conversational with contractions, confident but not pushy, and grounded in the prospect's world. Avoid marketing patterns like 'I hope this email finds you well,' jargon, and feature dumps.

Generated from the current SKILL.md. These answers refresh after source changes.