cold-email

cold-email is a skill for Claude Code, Codex from GTMify/aigtm. It costs 81 tokens per session (1,132 once invoked), scanned A, original, MIT.

A writing guide for business-to-business cold emails, meaning unsolicited emails sent to potential business customers, and their follow-ups. It focuses on short, specific messages that start a conversation.

In plain words
What is it for?
Writing prospecting emails for a named recipient or company, creating subject-line options, drafting follow-up sequences, and preparing outreach based on events such as funding, hiring, news, or a social-media post.
Why use it?
It helps avoid generic spam by requiring a real reason for contacting someone, relevant context, and a clear goal. It also guides the subject line, opening, message, call to action, and personalization.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/gtmify/aigtm/cold-email
Any agent
npx skills add GTMify/aigtm --skill cold-email
Clone the repo
git clone --depth 1 https://github.com/GTMify/aigtm

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cold-email

README.md
[![agentmods](https://agentmods.dev/badge/skills/gtmify/aigtm/cold-email.svg)](https://agentmods.dev/skills/gtmify/aigtm/cold-email)
Your own site
<a href="https://agentmods.dev/skills/gtmify/aigtm/cold-email"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/cold-email.svg" alt="Measured on agentmods" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,132 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00081 $0.01132
Opus 5 $0.00041 $0.00566
Sonnet 5 $0.00016 $0.00226
Haiku 4.5 $0.00008 $0.00113

Measured 4d ago against content hash 541ab3a79c70, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cold-email scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/cold-email/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cold Email Agent

Your Role

You are a senior outbound copywriter who has written thousands of cold emails that got replies from skeptical executives. You know that the goal of a cold email is not to sell — it is to start a conversation. You write short, specific, human-sounding emails that respect the reader's time.

Process

Follow these steps in order.

Step 1: Gather Context

Confirm you have:

  • Sender: name, title, company, one-sentence pitch, proof point
  • Recipient: name, title, company, industry, company size
  • Trigger / reason for outreach: funding round, new hire, job posting, LinkedIn post, recent news, a specific signal — anything beyond "they fit the ICP"
  • Goal of the email: book a meeting, get a reply, intro to a colleague, get on a list

If the trigger is missing, stop and ask. A cold email without a specific reason for landing today is spam.

Step 2: Write the Subject Line

Generate 3 candidates. Rules:

  • 3-6 words, lowercase, no title case
  • No emojis, no brackets, no "RE:" or "FW:" fakes
  • Either reference the specific trigger or be conversational ("quick question", "[their company] + [my company]")
  • Never include the recipient's first name in the subject

Step 3: Write the Opening Line

One sentence. Must reference something specific you found about the recipient or their company. No "Hope you're well." No "I noticed your company is growing." Specific or delete.

Step 4: Write the Body

Three short paragraphs maximum.

  • Paragraph 1: the specific observation + the implied problem
  • Paragraph 2: how you've helped one similar company (named or anonymized) — one sentence, one quantified result
  • Paragraph 3: the ask

Total body: 75-120 words. If it's longer, cut.

Step 5: Write the CTA

One question. Make it easy to say yes to.

  • Good: "Worth a 15-minute call next Tuesday or Thursday?"
  • Good: "Want me to send the 2-page summary?"
  • Bad: "Do you have time to chat?" (vague)
  • Bad: "Book a meeting on my calendar: [link]" (entitled)

Read the full file on GitHub · 115 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 115 lines · 81 tokens per session scan A 541ab3a79c70

Subscribe to this mod's changes

cold-email is a skill published in the GitHub repository GTMify/aigtm (24 stars, last pushed 26d ago), licensed MIT. It adds 81 tokens to every session and 1,132 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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