cold-email-strategist

cold-email-strategist is a skill for Claude Code, Codex from swan-gtm/gtm-skills. It costs 117 tokens per session (2,245 once invoked), scanned A, original, MIT.

A guide to planning cold email, which is unsolicited email sent to potential customers. It covers first messages, follow-ups, re-engagement, subject lines, personalization, delivery, domain setup, and email authentication records such as SPF, DKIM, and DMARC.

In plain words
What is it for?
Use it to write or repair cold email sequences, improve personalization, manage deliverability, warm up a sending domain, or plan email infrastructure.
Why use it?
It brings the writing, follow-up timing, personalization, and sending setup into one process, making it easier to diagnose weak outreach.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to write or repair cold email sequences, improve personalization, manage deliverability, warm up a sending domain, or plan email infrastructure.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/swan-gtm/gtm-skills/cold-email-strategist
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.

Any agent
npx skills add swan-gtm/gtm-skills --skill cold-email-strategist
Clone the repo
git clone --depth 1 https://github.com/swan-gtm/gtm-skills

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-strategist

README.md
[![agentmods](https://agentmods.dev/badge/skills/swan-gtm/gtm-skills/cold-email-strategist/github.svg)](https://agentmods.dev/skills/swan-gtm/gtm-skills/cold-email-strategist)
Your own site
<a href="https://agentmods.dev/skills/swan-gtm/gtm-skills/cold-email-strategist"><img src="https://agentmods.dev/badge/skills/swan-gtm/gtm-skills/cold-email-strategist/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cold-email-strategist

Your own site · 80×15
<a href="https://agentmods.dev/skills/swan-gtm/gtm-skills/cold-email-strategist"><img src="https://agentmods.dev/badge/skills/swan-gtm/gtm-skills/cold-email-strategist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,245 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00117 $0.02245
Opus 5 $0.00059 $0.01123
Sonnet 5 $0.00023 $0.00449
Haiku 4.5 $0.00012 $0.00225

Measured 12d ago against content hash ec90ba6c1aee, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cold-email-strategist 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 12d 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/alex-vacca/cold-email-strategist/SKILL.md · 152 lines

How it starts

The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reference files for this skill live in references/ next to this file — load them with the relative paths given below.

Cold Email Orchestrator

You are an expert cold email strategist who has analyzed 10M+ cold emails and managed campaigns achieving 18-40% reply rates. You route requests to the right sub-skill and provide cross-cutting guidance on deliverability and tooling.

Routing Table

When a request comes in, identify the type and delegate to the appropriate sub-skill:

Request Type Sub-Skill Trigger Phrases Load
Writing a first cold email first-touch "write a cold email", "email 1", "first touch", "outbound template" Read references/first-touch.md
Writing follow-up emails follow-up "follow-up", "email 2/3", "no response", "bump", "breakup email" Read references/follow-up.md
Re-engaging old/lost leads re-engagement "re-engage", "closed-lost", "win back", "they ghosted", "reactivate" Read references/re-engagement.md
Subject line writing/testing subject-lines "subject line", "open rate", "A/B test subject" Read references/subject-lines.md
Personalization strategy personalization "personalize at scale", "custom first lines", "Clay prompts", "hooks" Read references/personalization.md
Emailing VPs/C-Level/Directors atl-messaging "email a CEO", "VP outreach", "executive email", "C-suite", "ATL" Read references/atl-messaging.md
Emailing Managers/ICs btl-messaging "email a manager", "IC outreach", "end user email", "BTL" Read references/btl-messaging.md
Copywriting frameworks & principles copywriting "copywriting framework", "Do the Math", "Short Trigger", "Pattern Interrupt", "email framework", "copy principles", "email variations", "e-com cold email" Read references/copywriting.md
Email infrastructure setup email-infra "email infra", "setup domains", "DNS setup", "SPF/DKIM/DMARC setup", "warmup", "mailbox setup", "Instantly setup", "how many domains", "email blacklist", "scaling email" Read references/email-infra.md
Deliverability/infrastructure See below Read resources directly
Sequencing tools See below Read resources directly

Read the full file on GitHub · 152 lines

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. 12d ago First seen · 152 lines · 117 tokens per session scan A ec90ba6c1aee

Subscribe to this mod's changes

cold-email-strategist is a skill published in the GitHub repository swan-gtm/gtm-skills (150 stars, last pushed 2d ago), licensed MIT. It adds 117 tokens to every session and 2,245 once invoked, about $0.0006 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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