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1kalin

Cold Email Writer

by 1kalin · GitHub ↗ · v1.0.0
cross-platform ✓ Security Clean
1759
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Install in OpenClaw
/install cold-email-writer
Description
Writes personalized cold emails that actually get replies
README (SKILL.md)

Cold Email Writer

You write cold emails that get opened, read, and replied to. No templates that sound like every other sales email in someone's inbox.

Framework: The 4-Line Cold Email

The best cold emails are short. Aim for 4-6 sentences max.

Structure

  1. Opening line — Prove you did your homework. Reference something specific about them (recent post, company news, mutual connection, job listing that signals a pain point).
  2. Problem/insight — State a problem they likely have OR share a relevant insight. Don't pitch yet.
  3. Bridge — One sentence connecting your solution to their problem. Keep it outcome-focused, not feature-focused.
  4. CTA — One clear, low-friction ask. Not "Let me know if you'd like to chat." Try: "Worth a 15-min call this week?" or "Mind if I send over a 2-min walkthrough?"

Rules

  • Subject line: 3-5 words. Lowercase. No clickbait. Should read like a note from a colleague, not a marketer.
  • No "I hope this finds you well" — Dead giveaway it's a mass email.
  • No "I" in the first line — Start with them, not you.
  • One CTA only — Multiple asks = no action.
  • Read it out loud — If it sounds like a robot wrote it, rewrite it.
  • Under 100 words — Shorter emails get more replies. Period.
  • No attachments on first touch — They don't trust you yet.
  • Mobile-friendly — Most execs read email on their phone. Short paragraphs, no walls of text.

Personalization Tiers

Tier 1 (High-value targets): Research their LinkedIn, recent interviews, company earnings calls, blog posts. Reference something specific they said or did.

Tier 2 (Mid-value): Reference their company's recent news, job postings (signals priorities), or industry trend affecting them specifically.

Tier 3 (Volume): Reference their role + industry pain point. Still personalized, just at the segment level.

Follow-up Sequence

  • Email 2 (3 days later): Add value. Share a relevant case study, article, or insight. Don't just "bump" the email.
  • Email 3 (5 days later): Different angle. Approach the problem from a new direction.
  • Email 4 (7 days later): Breakup email. "Looks like this isn't a priority right now — totally get it. If [problem] comes up again, happy to help."

What to Ask the User

Before writing, get:

  1. Who are you emailing? (Name, title, company)
  2. What do you sell / what's your offer?
  3. What problem does it solve for them specifically?
  4. Any personalization details? (Recent news, mutual connections, something they posted)
  5. What's the CTA? (Meeting, demo, reply, etc.)

Quality Check

Before sending any email, verify:

  • First line references something specific about the recipient
  • Under 100 words
  • One clear CTA
  • Doesn't start with "I"
  • No jargon or buzzwords
  • Sounds like a human, not a sales automation tool
  • Subject line is 3-5 words, lowercase
Usage Guidance
This skill is coherent and low-risk from a technical standpoint, but treat outputs as drafts: review every email before sending to avoid privacy violations, spam, or content that could violate laws or company policy. Do not paste sensitive secrets or private data into prompts. If you want the agent to fetch public info (LinkedIn, news), prefer doing that manually or confirm any web-scraping behavior and its data sources first. Verify any external links mentioned in READMEs before visiting them.
Capability Analysis
Type: OpenClaw Skill Name: cold-email-writer Version: 1.0.0 The skill bundle's content is entirely focused on its stated purpose of writing personalized cold emails. The `SKILL.md` instructions guide the AI on email structure, rules, and follow-up sequences, without any evidence of prompt injection attempts to deviate from the task, access sensitive data, or perform unauthorized actions. The `README.md` includes an external link to 'context packs', which is for the human user and does not instruct the AI agent to interact with it. No malicious or suspicious code/instructions were found.
Capability Assessment
Purpose & Capability
Name/description match the SKILL.md framework. The skill is purely an instruction template for writing short, personalized outreach and does not request unrelated binaries, credentials, or config paths.
Instruction Scope
SKILL.md stays within the domain of composing emails and asks the user to supply recipient details and personalization. It encourages researching recipients (LinkedIn, earnings calls) but does not instruct the agent to crawl or access external systems automatically. Be aware that an agent could be extended to fetch web data; this skill itself does not include those steps.
Install Mechanism
No install spec and no code files — instruction-only. Nothing is written to disk or downloaded by the skill.
Credentials
No environment variables, credentials, or config paths are requested. The lack of secrets is proportionate to the stated functionality.
Persistence & Privilege
Skill is not forced-always, has no persistence or system-wide configuration changes, and does not request elevated privileges.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install cold-email-writer
  3. After installation, invoke the skill by name or use /cold-email-writer
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
Initial release of Cold Email Writer. - Introduces a concise framework for 4-line cold emails focused on personalization and clarity. - Provides step-by-step structure with specific rules for maximum reply rates. - Outlines three tiers of personalization for targeting different prospect values. - Includes a follow-up sequence to maximize responses without spamming. - Lists essential questions and a quality checklist for crafting effective emails.
Metadata
Slug cold-email-writer
Version 1.0.0
License
All-time Installs 9
Active Installs 9
Total Versions 1
Frequently Asked Questions

What is Cold Email Writer?

Writes personalized cold emails that actually get replies. It is an AI Agent Skill for Claude Code / OpenClaw, with 1759 downloads so far.

How do I install Cold Email Writer?

Run "/install cold-email-writer" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Cold Email Writer free?

Yes, Cold Email Writer is completely free (open-source). You can download, install and use it at no cost.

Which platforms does Cold Email Writer support?

Cold Email Writer is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Cold Email Writer?

It is built and maintained by 1kalin (@1kalin); the current version is v1.0.0.

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